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>