自由手記

import android.app.Activity; 
import android.graphics.Color; 
import android.os.Bundle; 
import android.view.WindowManager; 
import android.view.WindowManager.LayoutParams; 
import android.widget.TextView; 

public class MainActivity extends Activity { 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
super.onCreate(savedInstanceState); 
WindowManager wm = (WindowManager) getApplicationContext() 
.getSystemService(WINDOW_SERVICE); 
WindowManager.LayoutParams lp = new WindowManager.LayoutParams(); 
// 悬浮所有页面之上 
lp.type = WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY; 
lp.width = WindowManager.LayoutParams.WRAP_CONTENT; 
lp.height = WindowManager.LayoutParams.WRAP_CONTENT; 
// 失去焦点 
lp.flags = LayoutParams.FLAG_NOT_TOUCH_MODAL 
| LayoutParams.FLAG_NOT_FOCUSABLE; 
TextView tv = new TextView(this); 
tv.setText("我是不是你最疼爱的人，你为什么不说话，握住是你冰冷的手动也不动让我好难过"); 
tv.setBackgroundColor(Color.WHITE); 
wm.addView(tv, lp); 
} 

}