android 悬浮窗学习笔记

本文代码例子下载：http://pan.baidu.com/s/1cf9hD

package com.phicomm.hu;import android.app.Activity;import android.content.Context;import android.content.Intent;import android.graphics.PixelFormat;import android.os.Bundle;import android.util.Log;import android.view.Gravity;import android.view.LayoutInflater;import android.view.MotionEvent;import android.view.View;import android.view.WindowManager;import android.view.View.OnClickListener;import android.view.View.OnTouchListener;import android.view.WindowManager.LayoutParams;import android.widget.Button;import android.widget.LinearLayout;public class FloatWindowTest extends Activity {    /** Called when the activity is first created. */private static final String TAG = "FloatWindowTest";WindowManager mWindowManager;WindowManager.LayoutParams wmParams;LinearLayout mFloatLayout;Button mFloatView;    @Override    public void onCreate(Bundle savedInstanceState)     {        super.onCreate(savedInstanceState);        //createFloatView();        setContentView(R.layout.main);                Button start = (Button)findViewById(R.id.start);        Button stop = (Button)findViewById(R.id.stop);                start.setOnClickListener(new OnClickListener()         {@Overridepublic void onClick(View v){// TODO Auto-generated method stubcreateFloatView();//finish();//handle.post(r);}});                stop.setOnClickListener(new OnClickListener()        {@Overridepublic void onClick(View v) {// TODO Auto-generated method stubif(mFloatLayout != null){mWindowManager.removeView(mFloatLayout);finish();}}});                    }        private void createFloatView()    {    //获取LayoutParams对象        wmParams = new WindowManager.LayoutParams();                //获取的是LocalWindowManager对象        mWindowManager = this.getWindowManager();        Log.i(TAG, "mWindowManager1--->" + this.getWindowManager());        //mWindowManager = getWindow().getWindowManager();        Log.i(TAG, "mWindowManager2--->" + getWindow().getWindowManager());             //获取的是CompatModeWrapper对象        //mWindowManager = (WindowManager) getApplication().getSystemService(Context.WINDOW_SERVICE);        Log.i(TAG, "mWindowManager3--->" + mWindowManager);        wmParams.type = LayoutParams.TYPE_PHONE;        wmParams.format = PixelFormat.RGBA_8888;;        wmParams.flags = LayoutParams.FLAG_NOT_FOCUSABLE;        wmParams.gravity = Gravity.LEFT | Gravity.TOP;        wmParams.x = 0;        wmParams.y = 0;        wmParams.width = WindowManager.LayoutParams.WRAP_CONTENT;        wmParams.height = WindowManager.LayoutParams.WRAP_CONTENT;                LayoutInflater inflater = this.getLayoutInflater();//LayoutInflater.from(getApplication());                mFloatLayout = (LinearLayout) inflater.inflate(R.layout.float_layout, null);        mWindowManager.addView(mFloatLayout, wmParams);        //setContentView(R.layout.main);        mFloatView = (Button)mFloatLayout.findViewById(R.id.float_id);                Log.i(TAG, "mFloatView" + mFloatView);        Log.i(TAG, "mFloatView--parent-->" + mFloatView.getParent());        Log.i(TAG, "mFloatView--parent--parent-->" + mFloatView.getParent().getParent());        //绑定触摸移动监听        mFloatView.setOnTouchListener(new OnTouchListener()         {@Overridepublic boolean onTouch(View v, MotionEvent event) {// TODO Auto-generated method stubwmParams.x = (int)event.getRawX() - mFloatLayout.getWidth()/2;//25为状态栏高度wmParams.y = (int)event.getRawY() - mFloatLayout.getHeight()/2 - 40;mWindowManager.updateViewLayout(mFloatLayout, wmParams);return false;}});                //绑定点击监听        mFloatView.setOnClickListener(new OnClickListener()        {@Overridepublic void onClick(View v) {// TODO Auto-generated method stubIntent intent = new Intent(FloatWindowTest.this, ResultActivity.class);startActivity(intent);}});            }}