Kinh nghiệm lập trình Android

bài - lap trinh game android

bài - lap trinh game android

Game tự làm bằng andegine nha Blog chia sẻ kinh nghiệm lập trình Android Blog chia sẻ kinh nghiệm lập trình Android

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Bài - lap trinh game android vơi andegine by john ly pham

Bài - lap trinh game android vơi andegine by john ly pham

Blog chia sẻ kinh nghiệm lập trình Android đây là game viết bằng Andegine,

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Bài 21 - CountDownTimer in android

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<span style="font-size: large;">Blog chia sẻ kinh nghiệm lập trình Android</span><br />
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<span style="font-size: large;">Chào các bạn hôm nay mình sẽ cùng các bạn tạo một ứng dụng mà có khả năng đếm số tăng hoặc giảm dần theo một khoảng thời gian nào đó trên một tổng thời gian. Đó chính là CountDownTimer.</span><br />
<span style="font-size: large;">Trong các ứng dụng Game rất hay sử dụng CountDownTimer đề đếm thời gian.</span><br />
<span style="font-size: large;"> Bây giờ mình sẽ tạo một app để hiển thị hết khả năng của CountDownTimer cho các bạn.</span><br />
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<span style="font-size: large;">Giao diện ứng dụng như sau :</span><br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjVySZegpPjGFyRCrM4CNTeL9R5WMXRpRzhb3ZENe1tv3IvHuWy3T53O-7Ugug2Erhyphenhyphen2FHPIvFYJ62n2JEug-ovYsEFcflVJHX1y4GQcPCM1W0rTGZEk05Ja0JykzF-PqcDT3q6VvGZb_4/s1600/Capture.PNG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><span style="font-size: large;"><img border="0" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjVySZegpPjGFyRCrM4CNTeL9R5WMXRpRzhb3ZENe1tv3IvHuWy3T53O-7Ugug2Erhyphenhyphen2FHPIvFYJ62n2JEug-ovYsEFcflVJHX1y4GQcPCM1W0rTGZEk05Ja0JykzF-PqcDT3q6VvGZb_4/s1600/Capture.PNG" width="323" /></span></a></div>
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<span style="font-size: large;">full code xml.</span><br />
<span style="color: #741b47;"><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"</span><br />
<span style="color: #741b47;">    xmlns:tools="http://schemas.android.com/tools"</span><br />
<span style="color: #741b47;">    android:layout_width="match_parent"</span><br />
<span style="color: #741b47;">    android:layout_height="match_parent"</span><br />
<span style="color: #741b47;">    android:paddingBottom="@dimen/activity_vertical_margin"</span><br />
<span style="color: #741b47;">    android:paddingLeft="@dimen/activity_horizontal_margin"</span><br />
<span style="color: #741b47;">    android:paddingRight="@dimen/activity_horizontal_margin"</span><br />
<span style="color: #741b47;">    android:paddingTop="@dimen/activity_vertical_margin"</span><br />
<span style="color: #741b47;">    android:background="#000000"</span><br />
<span style="color: #741b47;">    tools:context=".MainActivity" ></span><br />
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<span style="color: #741b47;">    <TextView</span><br />
<span style="color: #741b47;">        android:id="@+id/tvshow"</span><br />
<span style="color: #741b47;">        android:layout_width="wrap_content"</span><br />
<span style="color: #741b47;">        android:layout_height="wrap_content"</span><br />
<span style="color: #741b47;">        android:layout_alignParentTop="true"</span><br />
<span style="color: #741b47;">        android:layout_centerHorizontal="true"</span><br />
<span style="color: #741b47;">        android:layout_marginTop="184dp"</span><br />
<span style="color: #741b47;">        android:textSize="30dp"</span><br />
<span style="color: #741b47;">        android:textColor="#FF5635"</span><br />
<span style="color: #741b47;">        android:text="0 %" /></span><br />
<span style="color: #741b47;"><br /></span>
<span style="color: #741b47;">    <Button</span><br />
<span style="color: #741b47;">        android:id="@+id/btstart"</span><br />
<span style="color: #741b47;">        android:layout_width="wrap_content"</span><br />
<span style="color: #741b47;">        android:layout_height="wrap_content"</span><br />
<span style="color: #741b47;">        android:layout_alignParentTop="true"</span><br />
<span style="color: #741b47;">        android:layout_marginTop="54dp"</span><br />
<span style="color: #741b47;">        android:layout_toLeftOf="@+id/tvshow"</span><br />
<span style="color: #741b47;">        android:textColor="#ffff34"</span><br />
<span style="color: #741b47;">        android:text="Start" /></span><br />
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<span style="color: #741b47;">    <Button</span><br />
<span style="color: #741b47;">        android:id="@+id/btstop"</span><br />
<span style="color: #741b47;">        android:layout_width="wrap_content"</span><br />
<span style="color: #741b47;">        android:layout_height="wrap_content"</span><br />
<span style="color: #741b47;">        android:layout_alignBaseline="@+id/btstart"</span><br />
<span style="color: #741b47;">        android:layout_alignBottom="@+id/btstart"</span><br />
<span style="color: #741b47;">        android:layout_alignLeft="@+id/tvshow"</span><br />
<span style="color: #741b47;">        android:layout_marginLeft="21dp"</span><br />
<span style="color: #741b47;">        android:textColor="#fffff4"</span><br />
<span style="color: #741b47;">        android:text="Stop" /></span><br />
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<span style="color: #741b47;"></RelativeLayout></span><br />
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<span style="font-size: large;">Giờ sang class java , chúng ta sùng countdownter.</span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjdWgN-4CgLvs7wtxy5loHLi2m8ddDGq2Gl48oZFc4DtMWDgjmoqImoh0cslNR5eraP5B_mK2AZIfpEO1u1vwHY5Hae4Ylc0KqZNU3cL6cf_qV3a5RlrHIzV-H_6wxmodt03xgVg8OGG24/s1600/Capture.PNG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><span style="font-size: large;"><img border="0" height="435" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjdWgN-4CgLvs7wtxy5loHLi2m8ddDGq2Gl48oZFc4DtMWDgjmoqImoh0cslNR5eraP5B_mK2AZIfpEO1u1vwHY5Hae4Ylc0KqZNU3cL6cf_qV3a5RlrHIzV-H_6wxmodt03xgVg8OGG24/s1600/Capture.PNG" width="640" /></span></a></div>
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<span style="font-size: large;">full code : java class </span></div>
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<span style="font-size: large;">Phần này khá đơn giản các bạn xem chú chích code là hiểu ngay</span></div>
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<span style="color: #741b47;">package com.example.countdowntimer;</span></div>
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<span style="color: #741b47;">import android.app.Activity;</span></div>
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<span style="color: #741b47;">import android.os.Bundle;</span></div>
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<span style="color: #741b47;">import android.os.CountDownTimer;</span></div>
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<span style="color: #741b47;">import android.view.View;</span></div>
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<span style="color: #741b47;">import android.view.View.OnClickListener;</span></div>
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<span style="color: #741b47;">import android.widget.Button;</span></div>
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<span style="color: #741b47;">import android.widget.TextView;</span></div>
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<span style="color: #741b47;">public class MainActivity extends Activity {</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;"> </span>CountDownTimer count;</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;"> </span>int index=0;</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;"> </span>@Override</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;"> </span>protected void onCreate(Bundle savedInstanceState) {</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">  </span>super.onCreate(savedInstanceState);</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">  </span>setContentView(R.layout.activity_main);</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">  </span>final TextView tvshow = (TextView)findViewById(R.id.tvshow);</span></div>
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<span class="Apple-tab-span" style="white-space: pre;"><span style="color: #741b47;">  </span></span></div>
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<span style="color: #741b47;">// bắt đầu và tiếp tục đếm sau khi tạm dừng</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">  </span>Button btstart = (Button)findViewById(R.id.btstart);</span></div>
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<span class="Apple-tab-span" style="white-space: pre;"><span style="color: #741b47;">  </span></span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">  </span>btstart.setOnClickListener(new OnClickListener() {</span></div>
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<span class="Apple-tab-span" style="white-space: pre;"><span style="color: #741b47;">   </span></span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">   </span>@Override</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">   </span>public void onClick(View arg0) {</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">    </span>// TODO Auto-generated method stub</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">    </span>count = new CountDownTimer(8000,100) { </span></div>
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<span style="color: #741b47;">// tổng thởi gian là 8000, thời gian mỗi lần đếm là 100 : các bạn thay đổi  tùy ứng dụng nha</span></div>
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<span class="Apple-tab-span" style="white-space: pre;"><span style="color: #741b47;">     </span></span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">     </span>@Override</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">     </span>public void onTick(long millisUntilFinished) {</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">      </span>// TODO Auto-generated method stub</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">      </span>index++;</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">      </span>tvshow.setText(""+index+" %");               </span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">     </span>}</span></div>
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<span class="Apple-tab-span" style="white-space: pre;"><span style="color: #741b47;">     </span></span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">     </span>@Override</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">     </span>public void onFinish() {</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">      </span>// TODO Auto-generated method stub</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">      </span>tvshow.setText("OK done !");</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">     </span>}</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">    </span>};</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">  </span>     count.start();</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">   </span>}</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">  </span>});</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;"> </span> // tạm dừng đếm</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">  </span>Button btstop = (Button)findViewById(R.id.btstop);</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">  </span>btstop.setOnClickListener(new OnClickListener() {</span></div>
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<span class="Apple-tab-span" style="white-space: pre;"><span style="color: #741b47;">   </span></span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">   </span>@Override</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">   </span>public void onClick(View arg0) {</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">    </span>// TODO Auto-generated method stub</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">    </span>count.cancel();</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">   </span>}</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">  </span>});</span></div>
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<span class="Apple-tab-span" style="white-space: pre;"><span style="color: #741b47;">  </span></span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;"> </span>}</span></div>
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<span style="color: #741b47;"><br /></span></div>
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<span style="color: #741b47;">}</span></div>
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<span style="font-size: large;">Kết quả ứng dụng :</span></div>
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<span style="font-size: large;"><br /></span></div>
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<span style="font-size: large;">chúc các bạn thành công .</span></div>
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<span style="background-color: #caff70; border: 0px; font-family: Arimo, Arial, Helvetica, sans-serif; font-size: medium; line-height: 22px; margin: 0px; padding: 0px;">Mọi thắc mắc các bạn liên hệ mình qua địa chỉ Gmail : svk10acntt@gmail.com hoặc Fb: </span><a href="https://www.facebook.com/pham.tienphong.37" style="-webkit-transition: all 0.2s linear; background-color: #caff70; border: 0px; font-family: Arimo, Arial, Helvetica, sans-serif; font-size: large; line-height: 22px; margin: 0px; padding: 0px; text-decoration: none; transition: all 0.2s linear;">John Ly Phạm</a></div>
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Bài 21 - CountDownTimer in android

Blog chia sẻ kinh nghiệm lập trình Android Chào các bạn hôm nay mình sẽ cùng các bạn tạo một ứng dụng mà có khả năng đếm số tăng hoặc g...

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Bài 20- Auto complete text in android

<span style="font-size: large;"><br /></span>
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<span style="font-size: large;">Blog chia sẻ kinh nghiệm lập trình Android</span><br />
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<span style="font-size: large;"><br /></span>
<span style="font-size: large;">Chào các bạn hôm nay mình sẽ cùng với các bạn tìm hiểu về AutoCompleteText trong android. Loại này có tác dụng là khi bạn nhập một kí tự nào đó  ngay lập tức app sẽ kiểm tra xem trong mảng có những phần tử nào bắt đầu bằng kí tự nó  và sẽ xuất hiện cho bạn chọn. thuận tiện cho việc không biết rõ từ đó viết như thế nào. Bây giờ chúng ta cùng bắt đầu xây dựng ứng dụng này nha.</span><br />
<span style="font-size: large;"><br /></span>
<span style="font-size: large;">Mình tạo một app đơn giản gồm có tiêu đề , một AutoCompleteTextView  , giao diện như sau :</span><br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhobFVNybZWz1N2bEKHG0IXKxxk97DCVupsYb8MqR-NguifhJTkpLklPZBVwu3Y6JcZG1fosdHEjhrP-2EpLACRrSceyOY_c4JfFe-9l-ro42Fi5RcKwNRbFZ9HwQ8zzmOTmrfYS584ynM/s1600/Capture.PNG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><span style="font-size: large;"><img border="0" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhobFVNybZWz1N2bEKHG0IXKxxk97DCVupsYb8MqR-NguifhJTkpLklPZBVwu3Y6JcZG1fosdHEjhrP-2EpLACRrSceyOY_c4JfFe-9l-ro42Fi5RcKwNRbFZ9HwQ8zzmOTmrfYS584ynM/s1600/Capture.PNG" width="301" /></span></a></div>
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<span style="font-size: large;">full code xml:</span></div>
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<span style="color: #4c1130;"><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"</span></div>
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<span style="color: #4c1130;">    android:layout_width="fill_parent"</span></div>
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<span style="color: #4c1130;">    android:layout_height="fill_parent"</span></div>
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<span style="color: #4c1130;">    android:background="#7CFC00"</span></div>
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<span style="color: #4c1130;">    android:orientation="vertical" ></span></div>
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<span style="color: #4c1130;">    <TextView</span></div>
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<span style="color: #4c1130;">        android:id="@+id/textView1"</span></div>
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<span style="color: #4c1130;">        android:layout_width="fill_parent"</span></div>
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<span style="color: #4c1130;">        android:layout_height="50dp"</span></div>
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<span style="color: #4c1130;">        android:layout_marginTop="20dp"</span></div>
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<span style="color: #4c1130;">        android:background="#ECAB53"</span></div>
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<span style="color: #4c1130;">        android:layout_gravity="center"</span></div>
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<span style="color: #4c1130;">        android:gravity="center"</span></div>
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<span style="color: #4c1130;">        android:textSize="25dp"</span></div>
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<span style="color: #4c1130;">        android:text="MÓN ĂN NGON YÊU THÍCH" /></span></div>
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<span style="color: #4c1130;">    <AutoCompleteTextView</span></div>
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<span style="color: #4c1130;">        android:id="@+id/autoCompleteTextView1"</span></div>
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<span style="color: #4c1130;">        android:layout_width="match_parent"</span></div>
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<span style="color: #4c1130;">        android:layout_height="40dp"</span></div>
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<span style="color: #4c1130;">        android:background="#FF4040"</span></div>
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<span style="color: #4c1130;">        android:completionThreshold="1"</span></div>
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<span style="color: #4c1130;">        android:ems="10"</span></div>
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<span style="color: #4c1130;">        android:hint="chọn" ></span></div>
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<span style="color: #4c1130;">        <requestFocus /></span></div>
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<span style="color: #4c1130;">    </AutoCompleteTextView></span></div>
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<span style="color: #4c1130;"></LinearLayout></span></div>
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<span style="font-size: large;">Cách lấy nhanh AutoCompleteTextView</span></div>
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<span style="font-size: large;">  </span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjkXHRyppI8rgvjfEMsOnaHJSRM73_vPx_LuW763rLxn-cKJgQtH5thp4YR_NZqVmwmkRtYz80Yx4w6eCgSPk9Py5mtw7h6trmaRptNEPWFn423nLLTb0StDzYTqfaIGKujpOMGpkUjpbc/s1600/Capture.PNG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><span style="font-size: large;"><img border="0" height="292" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjkXHRyppI8rgvjfEMsOnaHJSRM73_vPx_LuW763rLxn-cKJgQtH5thp4YR_NZqVmwmkRtYz80Yx4w6eCgSPk9Py5mtw7h6trmaRptNEPWFn423nLLTb0StDzYTqfaIGKujpOMGpkUjpbc/s1600/Capture.PNG" width="640" /></span></a></div>
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<span style="font-size: large;">Vậy là xong phần giao diện. tiếp đó các bạn vào file java để có thể sử dụng AutoCompleteTextView.</span></div>
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<span style="font-size: large;">Các bạn xem chú thích code sẽ làm được ngay @@, đơn giản đúng không!</span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjuxyi9uVDoODwUhK51HBL__bOmERSZrr8qY-5nL3wQ4_DO7-y0vsKUcny2QeYFcR12ysH3ITnAHE17FkTTwFiR_f0y2xe1Ow4hH0miwiOrQTyzGMAghSt7TbReKI6N4px4rqmvKjGDzF4/s1600/Capture.PNG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><span style="font-size: large;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjuxyi9uVDoODwUhK51HBL__bOmERSZrr8qY-5nL3wQ4_DO7-y0vsKUcny2QeYFcR12ysH3ITnAHE17FkTTwFiR_f0y2xe1Ow4hH0miwiOrQTyzGMAghSt7TbReKI6N4px4rqmvKjGDzF4/s1600/Capture.PNG" /></span></a></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiVK1Jb_yiitZaEyvYk4gWO9BRBYm0AQ2TpR64cZDXypuWdOPlgyIK7egPvTJwAjozSVmISDwBo3aibccXyBMHuE-0rcnCPvP6src7uqd3lvSgkr3oC8N6fPzQle3zV00MBVFtYMeo-S2I/s1600/Capture1.PNG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><span style="font-size: large;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiVK1Jb_yiitZaEyvYk4gWO9BRBYm0AQ2TpR64cZDXypuWdOPlgyIK7egPvTJwAjozSVmISDwBo3aibccXyBMHuE-0rcnCPvP6src7uqd3lvSgkr3oC8N6fPzQle3zV00MBVFtYMeo-S2I/s1600/Capture1.PNG" /></span></a></div>
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<span style="font-size: large;">Đây là full code java:</span></div>
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<span style="color: #741b47;">package com.example.autocompletetextview;</span></div>
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<span style="color: #741b47;">import android.os.Bundle;</span></div>
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<span style="color: #741b47;">import android.app.Activity;</span></div>
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<span style="color: #741b47;">import android.text.Editable;</span></div>
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<span style="color: #741b47;">import android.text.TextWatcher;</span></div>
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<span style="color: #741b47;">import android.widget.ArrayAdapter;</span></div>
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<span style="color: #741b47;">import android.widget.AutoCompleteTextView;</span></div>
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<span style="color: #741b47;">import android.widget.TextView;</span></div>
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<span style="color: #741b47;">public class MainActivity extends Activity {</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;"> </span>TextView tvshow;</span></div>
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<span style="color: #741b47;">    AutoCompleteTextView auto;</span></div>
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<span style="color: #741b47;">    // mảng này chứa các từ cần được auto</span></div>
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<span style="color: #741b47;">    String[] item={"Gà Rán","Gà Quay","Gà Hầm","Gà Chiên","Thịt Lợ Quay","Cá Rán","Cá nấu"};</span></div>
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<span style="color: #741b47;">    @Override</span></div>
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<span style="color: #741b47;">    protected void onCreate(Bundle savedInstanceState) {</span></div>
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<span style="color: #741b47;">        super.onCreate(savedInstanceState);</span></div>
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<span style="color: #741b47;">        setContentView(R.layout.activity_main);</span></div>
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<span style="color: #741b47;">        </span></div>
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<span style="color: #741b47;">        tvshow =(TextView) findViewById(R.id.textView1);</span></div>
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<span style="color: #741b47;">        auto =(AutoCompleteTextView) findViewById(R.id.autoCompleteTextView1);</span></div>
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<span style="color: #741b47;">     </span></div>
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<span style="color: #741b47;">        // add mảng vừa tạo vào autocompletextview</span></div>
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<span style="color: #741b47;">        auto.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_expandable_list_item_1,item));</span></div>
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<span style="color: #741b47;">        // event lắng nghe sự kiện autocompletextview</span></div>
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<span style="color: #741b47;">        auto.addTextChangedListener(new TextWatcher() {</span></div>
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<span class="Apple-tab-span" style="white-space: pre;"><span style="color: #741b47;">   </span></span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">   </span>@Override</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">   </span>public void onTextChanged(CharSequence s, int start, int before, int count) {</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">    </span>// TODO Auto-generated method stub</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">   </span>}</span></div>
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<span class="Apple-tab-span" style="white-space: pre;"><span style="color: #741b47;">   </span></span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">   </span>@Override</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">   </span>public void beforeTextChanged(CharSequence s, int start, int count,</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">     </span>int after) {</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">    </span>// TODO Auto-generated method stub</span></div>
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<span class="Apple-tab-span" style="white-space: pre;"><span style="color: #741b47;">    </span></span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">   </span>}</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">   </span>// sử dụng một trong 3 kiểu event : mình sử dụng event cuối này để bắt sự kiện</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">   </span>@Override</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">   </span>public void afterTextChanged(Editable s) {</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">    </span>// TODO Auto-generated method stub</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">    </span>tvshow.setText(auto.getText());</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">   </span>}</span></div>
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<span style="color: #741b47;"><span class="Apple-tab-span" style="white-space: pre;">  </span>});</span></div>
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<span style="color: #741b47;">    </span></div>
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<span style="color: #741b47;">    }</span></div>
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<span style="color: #741b47;">}</span></div>
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<span style="font-size: large;">Các bạn chạy ứng dụng và kết quả như hình bên dưới là thành công : </span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjxY687lJHyGdZDFUxRNCiOXJfVFih2IKurMaUeSsVAmWii5BhW1LgPf5WHF-6HzudpUHsmPmozFmYR2z_moTzfcF-otwG6EYa2Qk2o-epzw9v8iXflTpGJo8XWWdaOnIkz-I1Dwsg6jnw/s1600/Capture.PNG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><span style="font-size: large;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjxY687lJHyGdZDFUxRNCiOXJfVFih2IKurMaUeSsVAmWii5BhW1LgPf5WHF-6HzudpUHsmPmozFmYR2z_moTzfcF-otwG6EYa2Qk2o-epzw9v8iXflTpGJo8XWWdaOnIkz-I1Dwsg6jnw/s1600/Capture.PNG" /></span></a></div>
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<span style="font-size: large;">Chúc các bạn thành công :</span></div>
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<span style="font-size: large;"><br /></span></div>
<div>
<span style="font-size: large;"><span style="border: 0px; font-family: Arimo, Arial, Helvetica, sans-serif; line-height: 22px; margin: 0px; padding: 0px;">Mọi thắc mắc các bạn liên hệ mình qua địa chỉ Gmail : svk10acntt@gmail.com hoặc Fb: </span><a href="https://www.facebook.com/pham.tienphong.37" style="-webkit-transition: all 0.2s linear; border: 0px; font-family: Arimo, Arial, Helvetica, sans-serif; line-height: 22px; margin: 0px; padding: 0px; text-decoration: none; transition: all 0.2s linear;">John Ly Phạm</a></span></div>
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Bài 20- Auto complete text in android

Blog chia sẻ kinh nghiệm lập trình Android Chào các bạn hôm nay mình sẽ cùng với các bạn tìm hiểu về AutoCompleteText trong android....

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Bài 19 - Fonts text in android

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<span style="font-size: large;">Blog chia sẻ kinh nghiệm lập trình Android</span><br />
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<span style="font-size: large;">Chào các bạn , ở rất nhiều ứng dụng các bạn đều thấy các text hiện thị có kiểu chữ rất là đẹp. vậy là sao để làm được điều đó trong ứng dụng của mình thì hôm nay mình sẽ hướng dẫn các bạn các bước thể thay đổi font chữ.</span><br />
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<span style="font-size: large;"> Đầu tiên các bạn tạo cho mình một app đơn gian thôi chỉ gồm một dòng text bằng textview. mình tao ứng dụng như hình dưới đây :</span><br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhSFC-jzQGIL5bAorCm_k7XER0or08ZRdVDeEgRG0y2J63vYHChi0KRoqeV4pxCEqWNLgYO16W0Bpz086bj_PWjdSoxIHbKoGMe7Hxv2ByBp6wDAdkjqz6RwrJdhJ8QQPNxM_3LnhOrrDo/s1600/Capture.PNG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><span style="font-size: large;"><img border="0" height="400" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhSFC-jzQGIL5bAorCm_k7XER0or08ZRdVDeEgRG0y2J63vYHChi0KRoqeV4pxCEqWNLgYO16W0Bpz086bj_PWjdSoxIHbKoGMe7Hxv2ByBp6wDAdkjqz6RwrJdhJ8QQPNxM_3LnhOrrDo/s1600/Capture.PNG" width="361" /></span></a></div>
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<span style="font-size: large;">Tạo một textview với ID:  android:id="@+id/textfont"</span><br />
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<span style="font-size: large;">full code : </span><br />
<b>   <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"</b><br />
<b>    android:layout_width="fill_parent"</b><br />
<b>    android:layout_height="fill_parent"</b><br />
<b>    android:background="#000000"</b><br />
<b>    android:orientation="vertical" ></b><br />
<b><br /></b>
<b>    <TextView</b><br />
<b>        android:id="@+id/textfont"</b><br />
<b>        android:layout_width="fill_parent"</b><br />
<b>        android:layout_height="wrap_content"</b><br />
<b>        android:textSize="25dp"</b><br />
<b>        android:layout_marginTop="100dp"</b><br />
<b>        android:gravity="center"</b><br />
<b>        android:textColor="#F65781"</b><br />
<b>        android:text="John Ly Pham" /></b><br />
<b><br /></b>
<b></LinearLayout></b><br />
<span style="font-size: large;"><br /></span>
<span style="font-size: large;">Vậy là xong phần giao diện : </span><br />
<span style="font-size: large;">Tiếp đến trong app các bạn tìm tới thư mục  assets và thêm vào thư mục này 1 thứ mục con tên là : fonts</span><br />
<span style="font-size: large;">Đây chính là thư mục lưu fonts mà bạn cần cho ứng dụng. </span><br />
<span style="font-size: large;"><br /></span>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh1RtWM8kcDRE_BadiqAkGphVJFtveHhKGul-42BGtduZ1goDOD0eStv4d8Kd0kYO_S2V7efbc__UYNL4Wh-a0L3PZZC6aObBYo05sMtbHFybTYO41zhIYxSxdAI4oqnUFGl6de5YUmTMM/s1600/Capture.PNG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><span style="font-size: large;"><img border="0" height="640" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh1RtWM8kcDRE_BadiqAkGphVJFtveHhKGul-42BGtduZ1goDOD0eStv4d8Kd0kYO_S2V7efbc__UYNL4Wh-a0L3PZZC6aObBYo05sMtbHFybTYO41zhIYxSxdAI4oqnUFGl6de5YUmTMM/s1600/Capture.PNG" width="625" /></span></a></div>
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<span style="font-size: large;"><br /></span>
<span style="font-size: large;">Lấy font trong thư mục : C:\Windows\Fonts , tìm font mà bạn thích rồi coppy vào thư mục vừa tạo ở trên.</span><br />
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<span style="font-size: large;">Vậy là xong phần chuẩn bị. bây giờ chúng ta add font chữ vào textview trong ứng dụng, các bạn mở file java lên.</span></div>
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<span style="font-size: large;">Lưu ý : để cho nhanh các bạn copy đường link font text như sau : </span></div>
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<span style="font-size: large;"><br /></span></div>
<span style="font-size: large;">sau đó sửa dấu "\" thành dấu "/"</span><br />
<span style="font-size: large;">mỗi ứng dụng các bạn với các tương tự có thể add nhiều font và sử dụng cho nhiều đối tượng khác nhau :</span><br />
<span style="font-size: large;"><br /></span>
<span style="font-size: large;">full code : </span><br />
<b><br /></b>
<b>package com.example.fonts_text;</b><br />
<b><br /></b>
<b>import android.app.Activity;</b><br />
<b>import android.graphics.Typeface;</b><br />
<b>import android.os.Bundle;</b><br />
<b>import android.widget.TextView;</b><br />
<b><br /></b>
<b>public class MainActivity extends Activity {</b><br />
<b><br /></b>
<b><span class="Apple-tab-span" style="white-space: pre;"> </span>@Override</b><br />
<b><span class="Apple-tab-span" style="white-space: pre;"> </span>protected void onCreate(Bundle savedInstanceState) {</b><br />
<b><span class="Apple-tab-span" style="white-space: pre;">  </span>super.onCreate(savedInstanceState);</b><br />
<b><span class="Apple-tab-span" style="white-space: pre;">  </span>setContentView(R.layout.activity_main);</b><br />
<b><span class="Apple-tab-span" style="white-space: pre;">  </span>// khai báo textview</b><br />
<b><span class="Apple-tab-span" style="white-space: pre;">  </span>TextView tvfont = (TextView)findViewById(R.id.textfont);</b><br />
<b><span class="Apple-tab-span" style="white-space: pre;">  </span>// khai báo và add kiểu font bạn cần</b><br />
<b><span class="Apple-tab-span" style="white-space: pre;">  </span>Typeface typeface = Typeface.createFromAsset(getAssets(), "fonts/GIDDYUPSTD.OTF");</b><br />
<b><span class="Apple-tab-span" style="white-space: pre;">  </span>//add kiểu font vào textview font</b><br />
<span class="Apple-tab-span" style="white-space: pre;"><b>  </b></span><br />
<b><span class="Apple-tab-span" style="white-space: pre;">  </span>tvfont.setTypeface(typeface);</b><br />
<span class="Apple-tab-span" style="white-space: pre;"><b>  </b></span><br />
<span class="Apple-tab-span" style="white-space: pre;"><b>  </b></span><br />
<span class="Apple-tab-span" style="white-space: pre;"><b>  </b></span><br />
<b><span class="Apple-tab-span" style="white-space: pre;"> </span>}</b><br />
<b><br /></b>
<b>}</b><br />
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<span style="font-size: large;">Các bạn chạy ứng dụng và xem thành quả. chúc các bạn thành công</span></div>
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<span style="font-size: large;">Trước khi custom font.</span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjUu2fyPpJx8c8k_JuJzfAozyrvRKjhr8FD6mjRPUWdoG_tjWGdrqQkU1VsEoDxnatNQGUbup-wcfQLYxmm1NQesKY6lhMTY1KM5SpTfr80NyeauB-8JpCo5-0zBC_W4i7Nlx1HWH3bjeQ/s1600/Capture.PNG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><span style="font-size: large;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjUu2fyPpJx8c8k_JuJzfAozyrvRKjhr8FD6mjRPUWdoG_tjWGdrqQkU1VsEoDxnatNQGUbup-wcfQLYxmm1NQesKY6lhMTY1KM5SpTfr80NyeauB-8JpCo5-0zBC_W4i7Nlx1HWH3bjeQ/s1600/Capture.PNG" /></span></a></div>
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<span style="font-size: large;"><br /></span></div>
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<span style="font-size: large;"><br /></span></div>
<div>
<span style="font-size: large;"><br /></span></div>
<span style="font-size: large;">Sau khi custom font.</span><br />
<span style="font-size: large;"><br /></span>
<span style="font-size: large;"><br /></span>
<span style="border: 0px; font-family: Arimo, Arial, Helvetica, sans-serif; line-height: 22px; margin: 0px; padding: 0px;">Mọi thắc mắc các bạn liên hệ mình qua địa chỉ Gmail : svk10acntt@gmail.com hoặc Fb: </span><a href="https://www.facebook.com/pham.tienphong.37" style="-webkit-transition: all 0.2s linear; border: 0px; font-family: Arimo, Arial, Helvetica, sans-serif; font-size: large; line-height: 22px; margin: 0px; padding: 0px; text-decoration: none; transition: all 0.2s linear;">John Ly Phạm</a>.<br />
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Bài 19 - Fonts text in android

Blog chia sẻ kinh nghiệm lập trình Android Chào các bạn , ở rất nhiều ứng dụng các bạn đều thấy các text hiện thị có kiểu chữ rất là đẹ...

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Bài 18- spinner in android

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<span style="font-size: large;">Blog chia sẻ kinh nghiệm lập trình Android</span><br />
<span style="font-size: large;">Xin chào các bạn, sau mấy ngày nghỉ tết hôm nay chúng ta lại tiếp tục quay trở lại với lập trình, bài hôm nay mình giới thiệu các bạn về một loại chọn phần tử nữa trong android đó là : spinner</span><br />
<span style="font-size: large;"><br /></span>
<span style="font-size: large;">Spinner là một l kiểu chọn một giá trị trong một mảng. giao diện dễ dùng. muốn có một spinner ta khai báo như sau ;</span><br />
<span style="font-size: large;"><Spinner</span><br />
<span style="font-size: large;">            android:id="@+id/spinner1"</span><br />
<span style="font-size: large;">            android:layout_width="match_parent"</span><br />
<span style="font-size: large;">            android:layout_height="wrap_content"</span><br />
<span style="font-size: large;">            android:background="#FFFFFF" /></span><br />
<span style="font-size: large;"><br /></span>
<span style="font-size: large;">Bài này mình tạo giao diện đơn giản như sau : </span><br />
<br />
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"<br />
    android:layout_width="fill_parent"<br />
    android:layout_height="fill_parent"<br />
    android:background="#000003"<br />
    android:orientation="vertical" ><br />
<TextView<br />
            android:id="@+id/textView1"<br />
            android:layout_width="fill_parent"<br />
            android:layout_height="wrap_content"<br />
            android:layout_gravity="center"<br />
            android:gravity="center"<br />
            android:textSize="30dp"<br />
            android:text="SPRINNER" /><br />
<br />
        <TextView<br />
            android:id="@+id/tvxhow"<br />
            android:layout_width="fill_parent"<br />
            android:layout_height="wrap_content"<br />
             android:layout_gravity="center"<br />
            android:gravity="center"<br />
            android:textSize="24dp"<br />
            android:hint="show" /><br />
<br />
        <Spinner<br />
            android:id="@+id/spinner1"<br />
            android:layout_width="match_parent"<br />
            android:layout_height="wrap_content"<br />
            android:background="#FFFFFF" /><br />
  <br />
</LinearLayout><br />
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<span style="font-size: large;">Để sử dụng được spinner vừa tạo ra, tại main java chúng ta làm như sau :</span></div>
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<span style="font-size: large;">full code : các bạn xem chú thích sẽ hiểu code :</span></div>
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<span style="color: #4c1130;">package hom.example.spinner;</span></div>
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<span style="color: #4c1130;">import android.app.Activity;</span></div>
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<span style="color: #4c1130;">import android.os.Bundle;</span></div>
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<span style="color: #4c1130;">import android.view.View;</span></div>
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<span style="color: #4c1130;">import android.widget.AdapterView;</span></div>
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<span style="color: #4c1130;">import android.widget.ArrayAdapter;</span></div>
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<span style="color: #4c1130;">import android.widget.Spinner;</span></div>
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<span style="color: #4c1130;">import android.widget.TextView;</span></div>
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<span style="color: #4c1130;">public class MainActivity extends Activity {</span></div>
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<span style="color: #4c1130;">     TextView tv1,tvshow;</span></div>
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<span style="color: #4c1130;">     </span></div>
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<span style="color: #4c1130;">     // khai báo spinner như các phần tử khác</span></div>
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<span style="color: #4c1130;">     Spinner sp;</span></div>
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<span style="color: #4c1130;">     // gán một mảng String cho spinner, đây là cách thêm kiểu tĩnh</span></div>
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<span style="color: #4c1130;">     String[] item={"Ha Noi","Hai Phong","Quang Ninh"};</span></div>
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<span style="color: #4c1130;"><span class="Apple-tab-span" style="white-space: pre;"> </span>@Override</span></div>
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<span style="color: #4c1130;"><span class="Apple-tab-span" style="white-space: pre;"> </span>protected void onCreate(Bundle savedInstanceState) {</span></div>
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<span style="color: #4c1130;"><span class="Apple-tab-span" style="white-space: pre;">  </span>super.onCreate(savedInstanceState);</span></div>
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<span style="color: #4c1130;"><span class="Apple-tab-span" style="white-space: pre;">  </span>setContentView(R.layout.activity_main);</span></div>
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<span class="Apple-tab-span" style="white-space: pre;"><span style="color: #4c1130;">  </span></span></div>
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<span style="color: #4c1130;"><span class="Apple-tab-span" style="white-space: pre;">  </span>tv1=(TextView) findViewById(R.id.textView1);</span></div>
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<span style="color: #4c1130;"><span class="Apple-tab-span" style="white-space: pre;">  </span>tvshow=(TextView) findViewById(R.id.tvxhow);</span></div>
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<span style="color: #4c1130;"><span class="Apple-tab-span" style="white-space: pre;">  </span>sp= (Spinner) findViewById(R.id.spinner1);</span></div>
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<span style="color: #4c1130;"><span class="Apple-tab-span" style="white-space: pre;">  </span>// khai báo một mảng ArrayAdapter có kiểu String với item là mảng string vừa khai báo ở trên</span></div>
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<span style="color: #4c1130;"><span class="Apple-tab-span" style="white-space: pre;">  </span>ArrayAdapter<String> adapter=new ArrayAdapter<String></span></div>
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<span style="color: #4c1130;"><span class="Apple-tab-span" style="white-space: pre;">      </span>(this, android.R.layout.simple_spinner_item,item);</span></div>
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<span class="Apple-tab-span" style="white-space: pre;"><span style="color: #4c1130;">  </span></span></div>
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<span style="color: #4c1130;"><span class="Apple-tab-span" style="white-space: pre;">  </span>// chọn kiểu hiển thị khi click vào spinner giống dạng một dialog custom</span></div>
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<span style="color: #4c1130;"><span class="Apple-tab-span" style="white-space: pre;">  </span>adapter.setDropDownViewResource(android.R.layout.select_dialog_singlechoice);</span></div>
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<span class="Apple-tab-span" style="white-space: pre;"><span style="color: #4c1130;">  </span></span></div>
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<span style="color: #4c1130;"><span class="Apple-tab-span" style="white-space: pre;">  </span>// thêm mảng ArrayAdapter vừa tạo vào spinner</span></div>
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<span style="color: #4c1130;"><span class="Apple-tab-span" style="white-space: pre;">  </span>sp.setAdapter(adapter);</span></div>
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<span style="color: #4c1130;"><span class="Apple-tab-span" style="white-space: pre;">  </span>// phương thức bắt sự kiện spinner</span></div>
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<span style="color: #4c1130;"><span class="Apple-tab-span" style="white-space: pre;">  </span>sp.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {</span></div>
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<span style="color: #4c1130;"><span class="Apple-tab-span" style="white-space: pre;">   </span>@Override</span></div>
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<span style="color: #4c1130;"><span class="Apple-tab-span" style="white-space: pre;">   </span>public void onItemSelected(AdapterView<?> arg0, View arg1,</span></div>
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<span style="color: #4c1130;"><span class="Apple-tab-span" style="white-space: pre;">     </span>int arg2, long arg3) {</span></div>
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<span style="color: #4c1130;"><span class="Apple-tab-span" style="white-space: pre;">    </span>//  arg2 là vị trí của phần tử trong mảng tính từ 0,1,2..</span></div>
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<span style="color: #4c1130;"><span class="Apple-tab-span" style="white-space: pre;">    </span>//item[arg2] là giá trị hay tên phần tử tương ứng vị trí arg2</span></div>
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<span style="color: #4c1130;"><span class="Apple-tab-span" style="white-space: pre;">    </span>tvshow.setText("Stt : "+arg2+ "  ,gia trị : "+item[arg2]);</span></div>
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<span style="color: #4c1130;"><span class="Apple-tab-span" style="white-space: pre;">   </span>}</span></div>
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<span style="color: #4c1130;"><span class="Apple-tab-span" style="white-space: pre;">   </span>@Override</span></div>
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<span style="color: #4c1130;"><span class="Apple-tab-span" style="white-space: pre;">   </span>public void onNothingSelected(AdapterView<?> arg0) {</span></div>
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<span style="color: #4c1130;"><span class="Apple-tab-span" style="white-space: pre;">    </span>// TODO Auto-generated method stub</span></div>
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<span class="Apple-tab-span" style="white-space: pre;"><span style="color: #4c1130;">    </span></span></div>
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<span style="color: #4c1130;"><span class="Apple-tab-span" style="white-space: pre;">   </span>}</span></div>
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<span style="color: #4c1130;"><span class="Apple-tab-span" style="white-space: pre;">  </span>});</span></div>
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<span style="color: #4c1130;"><span class="Apple-tab-span" style="white-space: pre;"> </span>}</span></div>
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<span style="color: #4c1130;">}</span></div>
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<span style="font-size: large;">Và ta chạy ứng dụng sẽ được kết quả như sau : </span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEixoU8-vOVDNc6cLVldGQUXDQZkrZSfcYpXCmK5Jc5baYoV4SvXu9ujbpSHVvO0XzsNEmfa7e-HdxC_DDy3P6VmpxEeB6Y4B7qd-W8iHBmKhRBc_tqJ6OHbSlSx2lCd4324uHN31vzdLa0/s1600/Capture.PNG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><span style="font-size: large;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEixoU8-vOVDNc6cLVldGQUXDQZkrZSfcYpXCmK5Jc5baYoV4SvXu9ujbpSHVvO0XzsNEmfa7e-HdxC_DDy3P6VmpxEeB6Y4B7qd-W8iHBmKhRBc_tqJ6OHbSlSx2lCd4324uHN31vzdLa0/s1600/Capture.PNG" /></span></a></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhZLe0neHtTUNWYq4nFaPtHTK7HGdrSrcKQVFnJHl1Zg_oalJ7cDvsi3c3m0q2rxhjH3_PHqxltcO7K0Oxp0P9tWEJDgAiirAdSoZwazLNdvo0QTG9KiIse9xoKpn4Mt90mQcysrSe7LTA/s1600/Capture1.PNG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><span style="font-size: large;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhZLe0neHtTUNWYq4nFaPtHTK7HGdrSrcKQVFnJHl1Zg_oalJ7cDvsi3c3m0q2rxhjH3_PHqxltcO7K0Oxp0P9tWEJDgAiirAdSoZwazLNdvo0QTG9KiIse9xoKpn4Mt90mQcysrSe7LTA/s1600/Capture1.PNG" /></span></a></div>
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<span style="font-size: large;">click vào spinner sẽ hiện lên một dialog. có 3 tên để chọn đó là mảng String item ta gán vào .</span></div>
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<span style="font-size: large;">Khi chọn vào Hải Phòng ta được như sau : </span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiiS5fV8JSEBw_SGMSDWucaf4XJm48QHL-zfmnxKbkgAPqmNexufLGlF1ibAKV0H93kMtfcbAz14x-FMiie9nAvhKbVX_lWBIHyCZin8xZzv8rfNvMMINWkW3cXFNdWSAfhwUY6-X_VWCk/s1600/Capture2.PNG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><span style="font-size: large;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiiS5fV8JSEBw_SGMSDWucaf4XJm48QHL-zfmnxKbkgAPqmNexufLGlF1ibAKV0H93kMtfcbAz14x-FMiie9nAvhKbVX_lWBIHyCZin8xZzv8rfNvMMINWkW3cXFNdWSAfhwUY6-X_VWCk/s1600/Capture2.PNG" /></span></a></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh_UgJnrybPK_Ibj8_hs8zcZa6dvNNDKr7FBHEdI8PCDf8mCO8R-9YwykRuKc_e2HLwv0lhy0Mk_z1ERfUjPmg-G_yCW80dBy6UfOSiFojs9ofto_84sGcS8j8d5JuLgNGh2UIdVn_S1w0/s1600/Capture3.PNG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><span style="font-size: large;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh_UgJnrybPK_Ibj8_hs8zcZa6dvNNDKr7FBHEdI8PCDf8mCO8R-9YwykRuKc_e2HLwv0lhy0Mk_z1ERfUjPmg-G_yCW80dBy6UfOSiFojs9ofto_84sGcS8j8d5JuLgNGh2UIdVn_S1w0/s1600/Capture3.PNG" /></span></a></div>
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<span style="font-size: large;">từ đó các bạn có thể sử dụng để lấy giá trị của spinner để phục vụ cho yêu cầu ứng dụng của các bạn. </span></div>
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<span style="font-size: large;">các bạn muốn có giao diện chọn cho spinner khác đi các bạn có thể chọn kiểu hiển thị tại đây:</span><br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgYv4Vhbzh4NxXAhx9QfmVhuHq_YjNS6BSNkn9u72DzUn09J97RhfGy679y3Lf1-5OCXeHF4vZK_yk_nsiOW-SMH5skp54jHGr2fPBTbeNOivcQljEsoTN1nkr62CVjSi2v_2Po0MqdvEc/s1600/Screenshot+(172).png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgYv4Vhbzh4NxXAhx9QfmVhuHq_YjNS6BSNkn9u72DzUn09J97RhfGy679y3Lf1-5OCXeHF4vZK_yk_nsiOW-SMH5skp54jHGr2fPBTbeNOivcQljEsoTN1nkr62CVjSi2v_2Po0MqdvEc/s1600/Screenshot+(172).png" /></a></div>
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<span style="background-color: white;"><span style="border: 0px; font-family: Arimo, Arial, Helvetica, sans-serif; font-size: medium; line-height: 22px; margin: 0px; padding: 0px;">Mọi thắc mắc các bạn liên hệ mình qua địa chỉ Gmail : svk10acntt@gmail.com hoặc Fb: </span><a href="https://www.facebook.com/pham.tienphong.37" style="-webkit-transition: all 0.2s linear; border: 0px; font-family: Arimo, Arial, Helvetica, sans-serif; font-size: large; line-height: 22px; margin: 0px; padding: 0px; text-decoration: none; transition: all 0.2s linear;">John Ly Phạm</a></span></div>

Bài 18- spinner in android

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