android 悬浮窗

mainactivity

import android.app.Activity;
import android.os.Bundle;
import android.content.Intent;
import android.view.View.OnClickListener;
import android.view.View;
import android.widget.Button;

public class MainActivity extends Activity
{

    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        //获取启动按钮
        Button start = (Button)findViewById(R.id.button);
        //获取移除按钮
        Button remove = (Button)findViewById(R.id.button2);
        //绑定监听
        start.setOnClickListener(new OnClickListener()
        {

            @Override
            public void onClick(View v)
            {
                // TODO Auto-generated method stub
                Intent intent = new Intent(MainActivity.this, FxService.class);
                //启动FxService
                startService(intent);
                finish();
            }
        });

        remove.setOnClickListener(new OnClickListener()
        {

            @Override
            public void onClick(View v)
            {
                //uninstallApp("com.phicomm.hu");
                Intent intent = new Intent(MainActivity.this, FxService.class);
                //终止FxService
                stopService(intent);
            }
        });

    }
}

布局文件

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
    android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity">

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="启动悬浮"
        android:id="@+id/button"
        android:layout_alignParentTop="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:layout_marginTop="21dp" />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="关闭悬浮"
        android:id="@+id/button2"
        android:layout_alignParentTop="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:layout_marginTop="88dp" />
</RelativeLayout>

FxService

import android.app.Service;
import android.content.Intent;
import android.graphics.PixelFormat;
import android.os.Handler;
import android.os.IBinder;
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;
import android.widget.Toast;

public class FxService extends Service
{

    //定义浮动窗口布局
    LinearLayout mFloatLayout;
    WindowManager.LayoutParams wmParams;
    //创建浮动窗口设置布局参数的对象
    WindowManager mWindowManager;

    Button mFloatView;

    private static final String TAG = "FxService";

    @Override
    public void onCreate()
    {
        // TODO Auto-generated method stub
        super.onCreate();
        Log.i(TAG, "oncreat");
        createFloatView();
    }

    @Override
    public IBinder onBind(Intent intent)
    {
        // TODO Auto-generated method stub
        return null;
    }

    private void createFloatView()
    {
        wmParams = new WindowManager.LayoutParams();
        //获取的是WindowManagerImpl.CompatModeWrapper
        mWindowManager = (WindowManager)getApplication().getSystemService(getApplication().WINDOW_SERVICE);
        Log.i(TAG, "mWindowManager--->" + mWindowManager);
        //设置window type
        wmParams.type = LayoutParams.TYPE_PHONE;
        //设置图片格式，效果为背景透明
        wmParams.format = PixelFormat.RGBA_8888;
        //设置浮动窗口不可聚焦（实现操作除浮动窗口外的其他可见窗口的操作）
        wmParams.flags = LayoutParams.FLAG_NOT_FOCUSABLE;
        //调整悬浮窗显示的停靠位置为左侧置顶
        wmParams.gravity = Gravity.LEFT | Gravity.TOP;
        // 以屏幕左上角为原点，设置x、y初始值，相对于gravity
        wmParams.x = 0;
        wmParams.y = 0;

        //设置悬浮窗口长宽数据
        wmParams.width = WindowManager.LayoutParams.WRAP_CONTENT;
        wmParams.height = WindowManager.LayoutParams.WRAP_CONTENT;

         /*// 设置悬浮窗口长宽数据
        wmParams.width = 200;
        wmParams.height = 80;*/

        LayoutInflater inflater = LayoutInflater.from(getApplication());
        //获取浮动窗口视图所在布局
        mFloatLayout = (LinearLayout) inflater.inflate(R.layout.float_layout, null);
        //添加mFloatLayout
        mWindowManager.addView(mFloatLayout, wmParams);
        //浮动窗口按钮
        mFloatView = (Button)mFloatLayout.findViewById(R.id.float_id);

        mFloatLayout.measure(View.MeasureSpec.makeMeasureSpec(0,
                View.MeasureSpec.UNSPECIFIED), View.MeasureSpec
                .makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
        Log.i(TAG, "Width/2--->" + mFloatView.getMeasuredWidth()/2);
        Log.i(TAG, "Height/2--->" + mFloatView.getMeasuredHeight()/2);
        //设置监听浮动窗口的触摸移动
        mFloatView.setOnTouchListener(new OnTouchListener()
        {

            @Override
            public boolean onTouch(View v, MotionEvent event)
            {
                // TODO Auto-generated method stub
                //getRawX是触摸位置相对于屏幕的坐标，getX是相对于按钮的坐标
                wmParams.x = (int) event.getRawX() - mFloatView.getMeasuredWidth()/2;
                Log.i(TAG, "RawX" + event.getRawX());
                Log.i(TAG, "X" + event.getX());
                //减25为状态栏的高度
                wmParams.y = (int) event.getRawY() - mFloatView.getMeasuredHeight()/2 - 25;
                Log.i(TAG, "RawY" + event.getRawY());
                Log.i(TAG, "Y" + event.getY());
                //刷新
                mWindowManager.updateViewLayout(mFloatLayout, wmParams);
                return false;  //此处必须返回false，否则OnClickListener获取不到监听
            }
        });

        mFloatView.setOnClickListener(new OnClickListener()
        {

            @Override
            public void onClick(View v)
            {
                // TODO Auto-generated method stub
                Toast.makeText(FxService.this, "onClick", Toast.LENGTH_SHORT).show();
            }
        });
    }

    @Override
    public void onDestroy()
    {
        // TODO Auto-generated method stub
        super.onDestroy();
        if(mFloatLayout != null)
        {
            //移除悬浮窗口
            mWindowManager.removeView(mFloatLayout);
        }
    }

}

floatxml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="vertical" >
    
    <Button 
        android:id="@+id/float_id"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/floating"/>
    
</LinearLayout>

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

    <string name="app_name">floatview</string>
    <string name="btn">启动悬浮窗口</string>
    <string name="floating">悬浮窗口</string>
    <string name="stop">移除悬浮窗口</string>
    <string name="action_settings">xx</string>
</resources>