Android 类似360悬浮窗口实现源码

package com.example.suspend;

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

public class MainActivity extends Activity {
    private Button suspend;
    private TextView text;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        initUI();        
    }

    private void initUI() {
        // TODO Auto-generated method stub
    //    WindowService wind = new WindowService();
        suspend = (Button)findViewById(R.id.suspend);
        suspend.setOnClickListener(new suspendListener());
        text = (TextView)findViewById(R.id.text);
        text.setText(MyWindowManager.getUsedPercentValue(getApplicationContext()));
    }
    public class suspendListener implements OnClickListener{

        @Override
        public void onClick(View arg0) {
            // TODO Auto-generated method stub
            //启动悬浮窗口关闭本窗口
            Intent intent = new Intent(MainActivity.this,WindowService.class);
            startService(intent);
            finish();
        }    
    }

}

/**
     * 判断当前界面是否桌面
     */
    private boolean isHome(){
        ActivityManager mactivityManager =(ActivityManager)getSystemService(Context.ACTIVITY_SERVICE);
        List<ActivityManager.RunningTaskInfo> rti = mactivityManager.getRunningTasks(1);
        return getHomes().contains(rti.get(0).topActivity.getPackageName());
    }

    /**
     * 获得属于桌面的应用的应用包名称
     * @return 返回包含所有包名的字符串列表
     */
    private List<String> getHomes(){
       List<String> names = new ArrayList<String>();
        PackageManager packageManager = this.getPackageManager();
        Intent intent = new Intent(Intent.ACTION_MAIN);
        intent.addCategory(Intent.CATEGORY_HOME);
        List<ResolveInfo> resolveInfo = packageManager.queryIntentActivities(intent,PackageManager.MATCH_DEFAULT_ONLY);
        for (ResolveInfo ri : resolveInfo){
            names.add(ri.activityInfo.packageName);
            System.out.println("packageName" + names);
            Log.d(TAG,"tag:"+names);
        }
        return names;
    }

package com.example.suspend;

import android.app.ActivityManager;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.os.Handler;
import android.os.IBinder;
import android.util.Log;
import java.util.ArrayList;
import java.util.List;
import java.util.Timer;
import java.util.TimerTask;

public class WindowService extends Service {
    private static final String TAG = "PACKAGENAME";
    //用于线程中创建或移除悬浮窗。
   private Handler handler = new Handler();
    //定时器，定时进行检测当前应该创建还是移除悬浮
    private Timer timer;
    @Override
    public IBinder onBind(Intent intent) {
        // TODO: Return the communication channel to the service.
        return null;
    }

    /**
     * 启动service的时候，onCreate方法只有第一次会调用，onStartCommand和onStart每次都被调用。
     * onStartCommand会告诉系统如何重启服务，如判断是否异常终止后重新启动，在何种情况下异常终止  
     * 这个整形可以有四个返回值：start_sticky、start_no_sticky、START_REDELIVER_INTENT、START_STICKY_COMPATIBILITY。  
     */
    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        /**
         * 开启定时器，每隔500ms刷新一次
         */
        if (timer == null){
            timer = new Timer();
            timer.scheduleAtFixedRate(new RefreshTask(),0,500);
        }
        return super.onStartCommand(intent, flags, startId);
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        //Service 被终止的同时也停止定时器继续运行
        timer.cancel();
        timer = null;
    }

    class RefreshTask extends TimerTask{

        @Override
        public void run() {
             //判断当前界面是桌面，且没有悬浮显示，则创建悬浮窗
            if (isHome() && !MyWindowManager.isWindowShowing()){
                handler.post(new Runnable() {
                    @Override
                    public void run() {
                       MyWindowManager.createSmallWindow(getApplicationContext());
                    }
                });
            }
            //当前界面不是桌面，且有悬浮窗口显示，则移除悬浮窗口
            else if (!isHome() && MyWindowManager.isWindowShowing()){
                handler.post(new Runnable() {
                    @Override
                    public void run() {
                         MyWindowManager.removeSmallWindow(getApplicationContext());
                         MyWindowManager.removeBigWindow(getApplicationContext());
                    }
                }) ;
            }
            // 当前界面是桌面，且有悬浮窗显示，则更新内存数据。
            else if (isHome() && MyWindowManager.isWindowShowing()){
                handler.post(new Runnable() {
                    @Override
                    public void run() {
                        MyWindowManager.updateUsedPercent(getApplicationContext());
                    }
                });
            }
        }
    }

    /**
     * 判断当前界面是否桌面
     */
    private boolean isHome(){
        ActivityManager mactivityManager =(ActivityManager)getSystemService(Context.ACTIVITY_SERVICE);
        List<ActivityManager.RunningTaskInfo> rti = mactivityManager.getRunningTasks(1);
        return getHomes().contains(rti.get(0).topActivity.getPackageName());
    }

    /**
     * 获得属于桌面的应用的应用包名称
     * @return 返回包含所有包名的字符串列表
     */
    private List<String> getHomes(){
       List<String> names = new ArrayList<String>();
        PackageManager packageManager = this.getPackageManager();
        Intent intent = new Intent(Intent.ACTION_MAIN);
        intent.addCategory(Intent.CATEGORY_HOME);
        List<ResolveInfo> resolveInfo = packageManager.queryIntentActivities(intent,PackageManager.MATCH_DEFAULT_ONLY);
        for (ResolveInfo ri : resolveInfo){
            names.add(ri.activityInfo.packageName);
            System.out.println("packageName" + names);
            Log.d(TAG,"tag:"+names);
        }
        return names;
    }
}

public static void createSmallWindow(Context context){
        //WindowManager基本用到:addView，removeView，updateViewLayout
        WindowManager windowManager = getWindowManager(context);
        //获取屏幕宽高 abstract Display  getDefaultDisplay()；  //获取默认显示的 Display 对象
        int screenWidth = windowManager.getDefaultDisplay().getWidth();
        int screenHeight = windowManager.getDefaultDisplay().getHeight();

        //设置小悬浮窗口的位置以及相关参数
        if (smallWindowActivity == null) {
            smallWindowActivity = new SmallWindowActivity(context);
            if (smallWindowParams == null) {
                smallWindowParams = new LayoutParams();//
                smallWindowParams.type = LayoutParams.TYPE_PHONE;//设置窗口的window type
                smallWindowParams.format = PixelFormat.RGBA_8888;//设置图片格式，效果为背景透明
                smallWindowParams.flags = LayoutParams.FLAG_NOT_TOUCH_MODAL
                        | LayoutParams.FLAG_NOT_FOCUSABLE;//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。
                smallWindowParams.gravity = Gravity.LEFT | Gravity.TOP;//调整悬浮窗口位置在左边中间
                smallWindowParams.width = SmallWindowActivity.viewWidth;//设置悬浮窗口的宽高
                smallWindowParams.height = SmallWindowActivity.viewHeight;
                smallWindowParams.x = screenWidth;//设置悬浮窗口位置
                smallWindowParams.y = screenHeight / 2;
            }
            smallWindowActivity.setParams(smallWindowParams);
            windowManager.addView(smallWindowActivity, smallWindowParams);//将需要加到悬浮窗口中的View加入到窗口中
        }
    }

/**
     * 计算已使用内存的百分比，并返回。
     *
     * @param context
     *            可传入应用程序上下文。
     * @return 已使用内存的百分比，以字符串形式返回。
     */
    public static String getUsedPercentValue(Context context) {
        String dir = "/proc/meminfo";
        try {
            FileReader fr = new FileReader(dir);
            BufferedReader br = new BufferedReader(fr, 2048);
            String memoryLine = br.readLine();
            String subMemoryLine = memoryLine.substring(memoryLine.indexOf("MemTotal:"));
            br.close();
            long totalMemorySize = Integer.parseInt(subMemoryLine.replaceAll("\\D+", ""));
            long availableSize = getAvailableMemory(context) / 1024;
            int percent = (int) ((totalMemorySize - availableSize) / (float) totalMemorySize * 100);
            return percent + "%";
        } catch (IOException e) {
            e.printStackTrace();
        }
        return "悬浮窗";
    }

    /**
     * 更新小悬浮窗的TextView上的数据，显示内存使用的百分比。
     *
     * @param context
     *            可传入应用程序上下文。
     */
    public static void updateUsedPercent(Context context) {
        if (smallWindowActivity != null) {
            TextView percentView = (TextView) smallWindowActivity.findViewById(R.id.percent);
            percentView.setText(getUsedPercentValue(context));
        }
    }
    /**
     * 获取当前可用内存，返回数据以字节为单位。
     *
     * @param context
     *            可传入应用程序上下文。
     * @return 当前可用内存。
     */
    private static long getAvailableMemory(Context context) {
        ActivityManager.MemoryInfo mi = new ActivityManager.MemoryInfo();
        getActivityManager(context).getMemoryInfo(mi);
        return mi.availMem;
    }

    /**
     * 如果ActivityManager还未创建，则创建一个新的ActivityManager返回。否则返回当前已创建的ActivityManager。
     *
     * @param context
     *            可传入应用程序上下文。
     * @return ActivityManager的实例，用于获取手机可用内存。
     */
    private static ActivityManager getActivityManager(Context context) {
        if (mactivityManager == null) {
            mactivityManager = (ActivityManager)context.getSystemService(Context.ACTIVITY_SERVICE);
        }
        return mactivityManager;
    }

package com.example.suspend;


import android.app.ActivityManager;
import android.content.Context;
import android.graphics.PixelFormat;
import android.view.Gravity;
import android.view.WindowManager.LayoutParams;
import android.view.WindowManager;
import android.widget.TextView;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;

public class MyWindowManager{
    //小悬浮窗View的实例
    private static SmallWindowActivity smallWindowActivity;

    //大悬浮窗View的实例
    private static BigWindowActivity bigWindowActivity;

    //小悬浮View的参数
    private static LayoutParams smallWindowParams;

    //大悬浮View的参数
    private  static LayoutParams bigWindowParams;

    //用于控制在屏幕上添加或移除悬浮窗
    private static WindowManager mWindowManager;


    //用于获取手机可用内存
    private  static ActivityManager mactivityManager;

    public static void createSmallWindow(Context context){
        //WindowManager基本用到:addView，removeView，updateViewLayout
        WindowManager windowManager = getWindowManager(context);
        //获取屏幕宽高 abstract Display  getDefaultDisplay()；  //获取默认显示的 Display 对象
        int screenWidth = windowManager.getDefaultDisplay().getWidth();
        int screenHeight = windowManager.getDefaultDisplay().getHeight();

        //设置小悬浮窗口的位置以及相关参数
        if (smallWindowActivity == null) {
            smallWindowActivity = new SmallWindowActivity(context);
            if (smallWindowParams == null) {
                smallWindowParams = new LayoutParams();//
                smallWindowParams.type = LayoutParams.TYPE_PHONE;//设置窗口的window type
                smallWindowParams.format = PixelFormat.RGBA_8888;//设置图片格式，效果为背景透明
                smallWindowParams.flags = LayoutParams.FLAG_NOT_TOUCH_MODAL
                        | LayoutParams.FLAG_NOT_FOCUSABLE;//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。
                smallWindowParams.gravity = Gravity.LEFT | Gravity.TOP;//调整悬浮窗口位置在左边中间
                smallWindowParams.width = SmallWindowActivity.viewWidth;//设置悬浮窗口的宽高
                smallWindowParams.height = SmallWindowActivity.viewHeight;
                smallWindowParams.x = screenWidth;//设置悬浮窗口位置
                smallWindowParams.y = screenHeight / 2;
            }
            smallWindowActivity.setParams(smallWindowParams);
            windowManager.addView(smallWindowActivity, smallWindowParams);//将需要加到悬浮窗口中的View加入到窗口中
        }
    }

    /**
     * 创建一个大悬浮窗。位置为屏幕正中间。
     *
     * @param context
     *            必须为应用程序的Context.
     */
//    @SuppressWarnings("deprecation")
    public static void createBigWindow(Context context) {
        WindowManager windowManager = getWindowManager(context);
        int screenWidth = windowManager.getDefaultDisplay().getWidth();
        int screenHeight = windowManager.getDefaultDisplay().getHeight();
        if (bigWindowActivity == null) {
            bigWindowActivity = new BigWindowActivity(context);
            if (bigWindowParams == null) {
                bigWindowParams = new LayoutParams();
                bigWindowParams.x = screenWidth / 3 - BigWindowActivity.viewWidth / 3;
                bigWindowParams.y = screenHeight / 3 - BigWindowActivity.viewHeight / 3;
                bigWindowParams.type = LayoutParams.TYPE_PHONE;
                bigWindowParams.format = PixelFormat.RGBA_8888;
                bigWindowParams.gravity = Gravity.LEFT | Gravity.TOP;
                bigWindowParams.width = BigWindowActivity.viewWidth;
                bigWindowParams.height = BigWindowActivity.viewHeight;
            }
            windowManager.addView(bigWindowActivity, bigWindowParams);
        }
    }

    /**
     * 将小悬浮窗从屏幕上移除。
     * abstract void removeViewImmediate(View view)；//是removeView(View) 的一个特殊扩展，
     * 在方法返回前能够立即调用该视图层次的View.onDetachedFromWindow() 方法。
     * @param context
     *            必须为应用程序的Context.
     */
    public static void removeSmallWindow(Context context) {
        if (smallWindowActivity != null) {
            WindowManager windowManager = getWindowManager(context);
            windowManager.removeView(smallWindowActivity);//移除悬浮窗口
            smallWindowActivity = null;
        }
    }

    /**
     * 将大悬浮窗从屏幕上移除。
     *
     * @param context
     *            必须为应用程序的Context.
     */
    public static void removeBigWindow(Context context) {
        if (bigWindowActivity != null) {
            WindowManager windowManager = getWindowManager(context);
            windowManager.removeView(bigWindowActivity);
            bigWindowActivity = null;
        }
    }

    /**
     * 是否有悬浮窗(包括小悬浮窗和大悬浮窗)显示在屏幕上。
     *
     * @return 有悬浮窗显示在桌面上返回true，没有的话返回false。
     */
    public static boolean isWindowShowing() {
        return smallWindowActivity != null || bigWindowActivity != null;
        //return smallWindowActivity != null;
    }

    /**
     * 如果WindowManager还未创建，则创建一个新的WindowManager返回。否则返回当前已创建的WindowManager。
     *
     * @param context
     *            必须为应用程序的Context.
     * @return WindowManager的实例，用于控制在屏幕上添加或移除悬浮窗。
     */
    private static WindowManager getWindowManager(Context context) {
        if (mWindowManager == null) {
            mWindowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
        }
        return mWindowManager;
    }

    /**
     * 计算已使用内存的百分比，并返回。
     *
     * @param context
     *            可传入应用程序上下文。
     * @return 已使用内存的百分比，以字符串形式返回。
     */
    public static String getUsedPercentValue(Context context) {
        String dir = "/proc/meminfo";
        try {
            FileReader fr = new FileReader(dir);
            BufferedReader br = new BufferedReader(fr, 2048);
            String memoryLine = br.readLine();
            String subMemoryLine = memoryLine.substring(memoryLine.indexOf("MemTotal:"));
            br.close();
            long totalMemorySize = Integer.parseInt(subMemoryLine.replaceAll("\\D+", ""));
            long availableSize = getAvailableMemory(context) / 1024;
            int percent = (int) ((totalMemorySize - availableSize) / (float) totalMemorySize * 100);
            return percent + "%";
        } catch (IOException e) {
            e.printStackTrace();
        }
        return "悬浮窗";
    }

    /**
     * 更新小悬浮窗的TextView上的数据，显示内存使用的百分比。
     *
     * @param context
     *            可传入应用程序上下文。
     */
    public static void updateUsedPercent(Context context) {
        if (smallWindowActivity != null) {
            TextView percentView = (TextView) smallWindowActivity.findViewById(R.id.percent);
            percentView.setText(getUsedPercentValue(context));
        }
    }
    /**
     * 获取当前可用内存，返回数据以字节为单位。
     *
     * @param context
     *            可传入应用程序上下文。
     * @return 当前可用内存。
     */
    private static long getAvailableMemory(Context context) {
        ActivityManager.MemoryInfo mi = new ActivityManager.MemoryInfo();
        getActivityManager(context).getMemoryInfo(mi);
        return mi.availMem;
    }

    /**
     * 如果ActivityManager还未创建，则创建一个新的ActivityManager返回。否则返回当前已创建的ActivityManager。
     *
     * @param context
     *            可传入应用程序上下文。
     * @return ActivityManager的实例，用于获取手机可用内存。
     */
    private static ActivityManager getActivityManager(Context context) {
        if (mactivityManager == null) {
            mactivityManager = (ActivityManager)context.getSystemService(Context.ACTIVITY_SERVICE);
        }
        return mactivityManager;
    }

}

    @Override
    public boolean onTouchEvent(MotionEvent event) {
        switch (event.getAction()){
            case MotionEvent.ACTION_DOWN:
                //手指按下时记录必要数据，纵坐标的值都需要减去状态栏高度
                xInView = event.getX();
                yInView = event.getY();
                xDownInScreen = event.getRawX();
                yDownInScreen = event.getRawY() - getStatusBarHeight();
                xInScreen = event.getRawX();
                yInScreen = event.getRawY() - getStatusBarHeight();
                break;
            case MotionEvent.ACTION_MOVE:
                xInScreen = event.getRawX();
                yInScreen = event.getRawY()-getStatusBarHeight();
                //手指一动的时候就更新悬浮窗位置
                updateViewPosition();
                break;
            case MotionEvent.ACTION_UP:
                //如果手指离开屏幕时，xDownInScreen和xInScreen相等，且yDownInScreen == yInScreen
                //则视为触发
                if (xDownInScreen == xInScreen && yDownInScreen == yInScreen) {
                    MyWindowManager.createBigWindow(getContext());//创建大窗口
                    MyWindowManager.removeSmallWindow(getContext());//移除小窗口
                    Toast.makeText(getContext(), "手指离开屏幕！", Toast.LENGTH_SHORT).show();
                }
                break;
            default:
                break;
        }
        return true;
    }

package com.example.suspend;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;
import android.view.WindowManager;

import java.lang.reflect.Field;

public class SmallWindowActivity extends LinearLayout {
    
    public static int viewWidth;//小悬浮宽度
    public static int viewHeight;//小悬浮高度

    private static int statusBarHeight;//状态栏高度

    private WindowManager windowManager;//更新小悬浮的位置
    private WindowManager.LayoutParams mParams;//小悬浮高度
    
    private float xInScreen;//记录当前手指位置在屏幕上的横坐标值
    private float yInScreen;//记录当前手指位置在屏幕上的纵坐标值

    private float xDownInScreen;//记录手指按下时在屏幕上的横坐标的值
    private float yDownInScreen;//记录手指按下时在屏幕上的纵坐标的值

    private float xInView;//记录手指按下时在小悬浮窗的View上的横坐标的值
    private float yInView;//记录手指按下时在小悬浮窗的View上的纵坐标的值
    /**
     *
     * @param context
     */
    public SmallWindowActivity(Context context) {
        super(context);
        windowManager = (WindowManager)context.getSystemService(Context.WINDOW_SERVICE);
        LayoutInflater.from(context).inflate(R.layout.activity_small_window,this);
        View view = findViewById(R.id.small_window_layout);
        //获取手机屏幕宽高
        viewWidth = view.getLayoutParams().width;
        viewHeight = view.getLayoutParams().height;
        //显示手机内存空间百分比
        TextView percentView = (TextView)findViewById(R.id.percent);
        percentView.setText(MyWindowManager.getUsedPercentValue(context));
    }
    /**
     * 手指触摸屏幕处理
     */
    @Override
    public boolean onTouchEvent(MotionEvent event) {
        switch (event.getAction()){
            case MotionEvent.ACTION_DOWN:
                //手指按下时记录必要数据，纵坐标的值都需要减去状态栏高度
                xInView = event.getX();
                yInView = event.getY();
                xDownInScreen = event.getRawX();
                yDownInScreen = event.getRawY() - getStatusBarHeight();
                xInScreen = event.getRawX();
                yInScreen = event.getRawY() - getStatusBarHeight();
                break;
            case MotionEvent.ACTION_MOVE:
                xInScreen = event.getRawX();
                yInScreen = event.getRawY()-getStatusBarHeight();
                //手指一动的时候就更新悬浮窗位置
                updateViewPosition();
                break;
            case MotionEvent.ACTION_UP:
                //如果手指离开屏幕时，xDownInScreen和xInScreen相等，且yDownInScreen == yInScreen
                //则视为触发
                if (xDownInScreen == xInScreen && yDownInScreen == yInScreen) {
                    MyWindowManager.createBigWindow(getContext());//创建大窗口
                    MyWindowManager.removeSmallWindow(getContext());//移除小窗口
                    Toast.makeText(getContext(), "手指离开屏幕！", Toast.LENGTH_SHORT).show();
                }
                break;
            default:
                break;
        }
        return true;
    }

    //将悬浮窗的参数传入，用于更新小悬浮窗的位置
    public void setParams(WindowManager.LayoutParams params) {
        mParams = params;
    }

    //更新小悬浮窗在屏幕中的位置
    private void updateViewPosition() {
        mParams.x = (int) (xInScreen - xInView);
        mParams.y = (int) (yInScreen - yInView);
        windowManager.updateViewLayout(this, mParams);
    }

    /**
     * 用于获取状态栏高度
     * @return 返回状态栏高度的像素值
     */
    private int getStatusBarHeight() {
        if (statusBarHeight == 0) {
            try {
                Class<?> c = Class.forName("com.android.internal.R$dimen");
                Object o = c.newInstance();
                Field field = c.getField("status_bar_height");
                int x = (Integer) field.get(o);
                statusBarHeight = getResources().getDimensionPixelSize(x);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
        return statusBarHeight;
    }
}

<?xml version="1.0" encoding="UTF-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/small_window_layout"
    android:layout_width="60dip"
    android:layout_height="25dip"
    android:background="@drawable/bg_small"
    >
    <TextView
        android:id="@+id/percent"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:gravity="center"
        android:textColor="#ffffff"
        />
</LinearLayout>

package com.example.suspend;

import android.content.Context;
import android.content.Intent;
import android.util.DisplayMetrics;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.widget.Button;
import android.widget.LinearLayout;

public class BigWindowActivity extends LinearLayout {

    //记录大悬浮窗的宽度
    public static int viewWidth;

    //记录大悬浮窗高度
    public static int viewHeight;
    
    private Button phone,sms,app,music;
    int screenWidth,screenHeight;
    int lastX,lastY;//记录移动的最后的位置
    int dx,dy;
    
    public BigWindowActivity(final Context context) {
        super(context);
         LayoutInflater.from(context).inflate(R.layout.big_window, this);
         View view  = findViewById(R.id.big_window_layout);
         viewWidth = view.getLayoutParams().width;
         viewHeight = view.getLayoutParams().height;
              
         initUI();
         
    }

     private void initUI() {
        // TODO Auto-generated method stub
         //获取屏幕的分辨率
        DisplayMetrics dm = getResources().getDisplayMetrics();
        screenWidth = dm.widthPixels;
        screenHeight = dm.heightPixels-50;
        Button back = (Button)findViewById(R.id.fanhui);
        //添加触摸监听
        back.setOnTouchListener(new OnTouchListener() {
            
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                // TODO Auto-generated method stub
                //获取Action
                int ea = event.getAction();
                Log.i("TAG","Touch:"+ea);
                switch (ea){
                    case MotionEvent.ACTION_DOWN:
                        lastX = (int)event.getRawX();
                        lastY = (int)event.getRawY();
                        break;
                    case MotionEvent.ACTION_MOVE:
                        //移动中动态设置位置
                          mobilesetting(v,event);
                        break;
                    case MotionEvent.ACTION_UP://当手指离开的时候执行
                        if (dx==dy){
                            comeback(getContext());
                        }
                        break;
                }
                return false;
            }
        });        
        
        sms = (Button)findViewById(R.id.SMS);
        sms.setOnTouchListener(new OnTouchListener() {
            
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                // TODO Auto-generated method stub
                int ea = event.getAction();
                Log.i("TAG","Touch:"+ea);
                switch (ea){
                    case MotionEvent.ACTION_DOWN:
                        lastX = (int)event.getRawX();
                        lastY = (int)event.getRawY();
                        break;
                    case MotionEvent.ACTION_MOVE:
                        //移动中动态设置位置
                          mobilesetting(v,event);
                        break;
                    case MotionEvent.ACTION_UP://当手指离开的时候执行
                        if (dx==dy){
                            sms();
                        }
                        break;
                }
                
                return false;
            }
        });
    }
     /**
      * 点击返回移除大窗口创建小窗口
      * @param context
      */
    public void comeback(Context context){
            // 点击返回的时候，移除大悬浮窗，创建小悬浮窗
            MyWindowManager.removeBigWindow(context);
            MyWindowManager.createSmallWindow(context);
     }
    //发短信
     public void sms(){
         Intent it = new Intent(Intent.ACTION_VIEW);
         it.putExtra("sms_body", "The SMS text");
         it.setType("vnd.android-dir/mms-sms");
         it.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
         getContext().startActivity(it);
         comeback(getContext());
     }
    
    /**
     * 移动控件设置位置
     * @param v
     * @param event
     */
    public void mobilesetting(View v,MotionEvent event){
        //移动中动态设置位置
        dx =  (int)event.getRawX()-lastX;//移动中x当前位置
        dy = (int)event.getRawY()-lastY;

        int left = v.getLeft()+dx;
        int top = v.getTop()+dy;
        int right = v.getRight()+dx;
        int bottom = v.getBottom()+dy;

        if(left<0){
            left=0;
            right = left+v.getWidth();//0
        }
        if (right>screenWidth){
            right = screenWidth;
            left = right - v.getWidth();//max
        }
        if(top < 0){
            top = 0;
            bottom = top + v.getHeight();
        }
        if(bottom > screenHeight){
            bottom = screenHeight;
            top = bottom - v.getHeight();
        }
        v.layout(left, top, right, bottom);
        //将当前的位置再次设置
        lastX = (int) event.getRawX();
        lastY = (int) event.getRawY();
    }
//     @Override
//    public boolean onTouchEvent(MotionEvent event) {
//        // TODO Auto-generated method stub
//        //点击屏幕弹出的框会消失
//        //popupWindow.dismiss();
//        return super.onTouchEvent(event);
//    }
}

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/big_window_layout"
     >
    
<Button
        android:layout_marginTop="200dip"
        android:layout_marginLeft="150dip"
        android:id="@+id/fanhui"
        android:layout_width="@dimen/bigwidth"
        android:layout_height="@dimen/bigheight"
        android:textColor="#ffffff"
        android:textSize="@dimen/bigtextsize"
        android:background="@xml/shape"
        android:text="@string/rt"
        />

    <Button
        android:id="@+id/app"
        android:layout_width="@dimen/bigwidth"
        android:layout_height="@dimen/bigheight"
        android:layout_above="@+id/music"
        android:layout_alignLeft="@+id/fanhui"
        android:background="@xml/shape"
        android:textSize="@dimen/bigtextsize"
        android:text="@string/appone" />

    <Button
        android:id="@+id/music"
        android:layout_width="@dimen/bigwidth"
        android:layout_height="@dimen/bigheight"
        android:layout_alignBaseline="@+id/fanhui"
        android:layout_alignBottom="@+id/fanhui"
        android:layout_toLeftOf="@+id/app"
        android:textSize="@dimen/bigtextsize"
        android:text="@string/mu"
        android:background="@xml/shape"
         />

    <Button
        android:id="@+id/SMS"
        android:layout_width="@dimen/bigwidth"
        android:layout_height="@dimen/bigheight"
        android:layout_below="@+id/fanhui"
        android:layout_toRightOf="@+id/music"
        android:textSize="@dimen/bigtextsize"
        android:background="@xml/shape"
        android:text="@string/sendsms" />

    <Button
        android:id="@+id/Phone"
        android:layout_width="@dimen/bigwidth"
        android:layout_height="@dimen/bigheight"
        android:layout_alignBaseline="@+id/fanhui"
        android:layout_alignBottom="@+id/fanhui"
        android:textSize="@dimen/bigtextsize"
        android:layout_toRightOf="@+id/fanhui"
        android:background="@xml/shape"
        android:text="@string/callphone" />
    
</RelativeLayout>

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="oval">          
    <!-- 实心 -->            
    <solid android:color="#ff9d77"/>            
    <!-- 渐变 -->            
    <gradient            
        android:startColor="#ff8c00"            
        android:endColor="#FFFFFF"            
        android:angle="270" />            
    <!-- 描边 -->            
    <stroke            
        android:width="2dp"            
        android:color="#dcdcdc" />            
    <!-- 圆角 -->            
    <corners            
        android:radius="2dp" />            
    <padding            
        android:left="10dp"            
        android:top="10dp"            
        android:right="10dp"            
        android:bottom="10dp" />            
</shape>

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.suspend"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="18" />
    <!-- 添加悬浮窗口权限 -->
    <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>
    <uses-permission android:name="android.permission.INTERNET"/>
    <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS"/>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.example.suspend.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <service android:name=".WindowService"></service>
    </application>

</manifest>