1. package com.example.windowmnagerexcercise; 
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  2.  
    3.  
         
  3. import android.os.Bundle; 
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  4. import android.app.Activity; 
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  5. import android.content.Context; 
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  6. import android.graphics.PixelFormat; 
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  7. import android.view.Gravity; 
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  8. import android.view.LayoutInflater; 
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  9. import android.view.Menu; 
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  10. import android.view.View; 
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  11. import android.view.View.OnClickListener; 
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  12. import android.view.WindowManager; 
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  13. import android.webkit.WebView.FindListener; 
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  14. import android.widget.Button; 
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  15. import android.widget.ImageView; 
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  16.  
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  17.  
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  18. public class MainActivity extends Activity { 
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  20.     @Override 
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  21.     protected void onCreate(Bundle savedInstanceState) { 
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  22.         super.onCreate(savedInstanceState); 
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  23.         setContentView(R.layout.activity_main); 
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  24.         Button button=(Button) findViewById(R.id.button1); 
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  25.         final LayoutInflater inflater=getLayoutInflater(); 
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  26.         button.setOnClickListener(new OnClickListener() { 
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  27.              
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  28.             @Override 
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  29.             public void onClick(View v) { 
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  30.                 // TODO Auto-generated method stub 
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  31.                 WindowManager windowManager=(WindowManager) getSystemService(Context.WINDOW_SERVICE); 
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  32.                 WindowManager.LayoutParams wmParams=new WindowManager.LayoutParams(); 
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  33.                 wmParams.type =WindowManager.LayoutParams.TYPE_PHONE; // 设置window type 
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  34.                 wmParams.format =PixelFormat.RGBA_8888;// 设置图片格式，效果为背景透明 
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  35.                 /* 
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  36.                     * 下面的flags属性的效果形同“锁定”。 悬浮窗不可触摸，不接受任何事件,同时不影响后面的事件响应。 
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  37.                     */ 
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  38.                 wmParams.flags=WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL | 
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  39.                 WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE | WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE; 
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  40.                 wmParams.gravity = Gravity.RIGHT| Gravity. CENTER_VERTICAL; // 调整悬浮窗口至右侧中间 
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  41.                 // 以屏幕左上角为原点，设置x、y初始值 
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  42.                 wmParams.x = 0; 
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  43.                 wmParams.y = 0; 
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  44.  
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  45.                 // 设置悬浮窗口长宽数据 
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  46.                 wmParams.width = WindowManager.LayoutParams.WRAP_CONTENT; 
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  47.                 wmParams.height =WindowManager.LayoutParams.WRAP_CONTENT; 
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  48.                 //注意此处的p_w_picpathview必须不属于某个父控件，否则报错。 
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  49.                 ImageView p_w_picpathView=new ImageView(getApplicationContext()); 
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  50.                 p_w_picpathView.setImageResource(R.drawable.e); 
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  51.                 windowManager.addView(p_w_picpathView, wmParams); 
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  52.             } 
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  53.         }); 
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  54.          
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  55.     } 
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  56.  
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  57.      
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  58. } 
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