PopupWindow的使用

public class PopUpActivity extends Activity { 

      /** Called when the activity is first created. */ 

      @Override 

      public void onCreate(Bundle savedInstanceState) { 

          super.onCreate(savedInstanceState); 

          setContentView(R.layout.main); 

          LayoutInflater inflater = LayoutInflater.from(this); 

          // 引入窗口配置文件 

          View view = inflater.inflate(R.layout.main2, null); 

          // 创建PopupWindow对象 

          final PopupWindow pop = new PopupWindow(view, LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, false); 

          Button btn = (Button) findViewById(R.id.btn); 

          // 需要设置一下此参数，点击外边可消失 

          pop.setBackgroundDrawable(new BitmapDrawable()); 

          //设置点击窗口外边窗口消失 

          pop.setOutsideTouchable(true); 

          // 设置此参数获得焦点，否则无法点击 

          pop.setFocusable(true); 

          btn.setOnClickListener(new OnClickListener() { 

             

              @Override 

              public void onClick(View v) { 

                  if(pop.isShowing()) { 

                      // 隐藏窗口，如果设置了点击窗口外小时即不需要此方式隐藏 

                      pop.dismiss(); 

                  } else { 

                      // 显示窗口 

                      pop.showAsDropDown(v); 

                  } 
                 

              } 

          }); 

      } 

    }

main.xml

<?xml version="1.0" encoding="utf-8"?> 

    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 

      android:layout_width="fill_parent" 

      android:layout_height="fill_parent" 

      android:orientation="vertical" > 
 

      <Button 

          android:id="@+id/btn" 

          android:layout_width="wrap_content" 

          android:layout_height="wrap_content" 

          android:text="dianji" /> 

 

    </LinearLayout>

main2.xml

<?xml version="1.0" encoding="utf-8"?> 

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 

  android:layout_width="fill_parent" 

  android:layout_height="fill_parent" 

  android:orientation="vertical" > 

 

  <Button 

      android:id="@+id/a" 

      android:layout_width="wrap_content" 

      android:layout_height="wrap_content" 

      android:text="AAAAA" /> 

 

  <Button 

      android:layout_width="wrap_content" 

      android:layout_height="wrap_content" 

      android:text="BBBBB" /> 

 

  <Button 

      android:layout_width="wrap_content" 

      android:layout_height="wrap_content" 

      android:text="CCCCC" /> 

 

  <Button 

      android:layout_width="wrap_content" 

      android:layout_height="wrap_content" 

      android:text="DDDDD" /> 

 

</LinearLayout>

转自：http://blog.csdn.net/android_xiaoqi/article/details/7618895