Android长久浮窗 service

package com.example.suspendview;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.graphics.PixelFormat;
import android.os.IBinder;
import android.util.Log;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnTouchListener;
import android.view.WindowManager;
import android.view.WindowManager.LayoutParams;
import android.widget.TextView;
public class TopFloatService extends Service {
private View view;
private WindowManager windowManager;

private WindowManager.LayoutParams layoutParams;
private TextView text;
private Context context;
@Override
public IBinder onBind(Intent intent) {
// TODO Auto-generated method stub
return null;
    }
@Override
public void onCreate() {
// TODO Auto-generated method stub
super.onCreate();
        creatView();

    }
private void creatView() {
// TODO Auto-generated method stub
        view = LayoutInflater.from(this).inflate(R.layout.main, null);
        text = (TextView) view.findViewById(R.id.flowspeed);
        text.setText("工厂模式");
        windowManager = (WindowManager) this.getSystemService(WINDOW_SERVICE);

/*
 * TYPE_SYSTEM_OVERLAY:窗口显示的时候焦点在后面的Activity上，仍旧可以操作后面的Activity
 * LayoutParams.TYPE_SYSTEM_ERROR：保证该悬浮窗所有View的最上层 ,不可点后面的activity
 * LayoutParams.FLAG_NOT_FOCUSABLE:该浮动窗不会获得焦点
 * PixelFormat.TRANSPARENT：悬浮窗透明
 */
        layoutParams = new WindowManager.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT,
        LayoutParams.TYPE_SYSTEM_OVERLAY, LayoutParams.FLAG_NOT_FOCUSABLE, PixelFormat.TRANSPARENT);
        layoutParams.gravity= Gravity.TOP; 
        layoutParams.x=160;
// layoutParams.y=160;
         windowManager.addView(view, layoutParams);
         Log.e("st", "creat");
    }

public void closeViwe(){
        windowManager.removeView(view);
    }

private void OnInterceptTouchEvent() {
// TODO Auto-generated method stub
    }
}

---

package com.example.suspendview;
import java.io.File;
import android.app.Activity;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.TextView;
/**
 * 
* @ClassName: MainActivity
* @Description: TODO(这里用一句话描述这个类的作用)
* @date 2017-6-15
* 实现悬浮窗功能
 */
public class MainActivity extends Activity {
private Button bt;
private TextView tv;
private TopFloatService tp;
    WindowManager windowmage;
private Context context;
    Intent intent;
    View view;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
         tv =(TextView) findViewById(R.id.tv);
         tp = new TopFloatService();


boolean tt=isExist();
        tv.setText(tt+"");
         intent = new Intent(MainActivity.this, TopFloatService.class);  
        startService(intent);  
// finish(); 


    }


public void bt(View view){

         intent = new Intent(MainActivity.this, TopFloatService.class);  
         stopService(intent);
        tp.closeViwe();
        Log.e("st", "close");
    }
}

---

 <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />

---

<service android:name="com.example.suspendview.TopFloatService">   </service>
  ```
  -------
````
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TextView 
android:id="@+id/flowspeed" 
android:textSize="60sp"
android:layout_width="wrap_content" 
android:layout_height="wrap_content" 
android:text="工厂设置"
android:textColor="#ff00ff" />  


</LinearLayout>