Her aşağıdaki resimde gibi (tüm uygulamaları ve ...) görebilirsiniz düşünüyorum üzerinde görüneceği böylece üstünde her zaman olduğu gibi bir katman yapmak istiyorum her zaman üst düzen

Question

çalışmıyor tarih:

o ide (android stüdyo) hiçbir hata var ama buna sadece hayır görünümü ile beyaz bir ekran gösterir ve logCat hata altına

E/sanat görebilirsiniz, çalışmaz: setrlimit (RLIMIT_CORE) pid için başarısız oldu 18140: Çalışmaya izin verilmiyor

Manifest

<?xml version="1.0" encoding="utf-8"?> 
<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
package="com.tpck.myapp"> 
<application 
android:allowBackup="true" 
android:icon="@mipmap/ic_launcher" 
android:label="@string/app_name" 
android:supportsRtl="true" 
android:theme="@style/AppTheme"> 

<meta-data 
    android:name="com.google.android.gms.version" 
    android:value="@integer/google_play_services_version" /> 

<activity android:name=".AAA" 
    android:exported="true"> 

    <intent-filter> 
     <action android:name="android.intent.action.MAIN" /> 

     <category android:name="android.intent.category.LAUNCHER" /> 
    </intent-filter> 

</activity> 

<service 
    android:name="HUD" 
    android:exported="false" 
    /> 
</application> 

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

</manifest> 

MainActivity

package com.tpck.myapp; 
import android.app.Activity; 
import android.content.Intent; 
import android.os.Bundle; 
public class AAA extends Activity { 
@Override 
public void onCreate(Bundle savedInstanceState) { 
super.onCreate(savedInstanceState); 
Intent svc = new Intent(this, OverlayShowingService.class); 
startService(svc); 
    } 
} 

Servis

package com.tpck.myapp; 

import android.app.Service; 
import android.content.Context; 
import android.content.Intent; 
import android.graphics.Canvas; 
import android.graphics.Paint; 
import android.graphics.PixelFormat; 
import android.os.IBinder; 
import android.view.Gravity; 
import android.view.MotionEvent; 
import android.view.ViewGroup; 
import android.view.WindowManager; 
import android.widget.Toast; 

public class HUD extends Service { 
HUDView mView; 

@Override 
public IBinder onBind(Intent intent) { 
return null; 
} 

@Override 
public void onCreate() { 
super.onCreate(); 

Toast.makeText(getBaseContext(),"onCreate", Toast.LENGTH_LONG).show(); 
mView = new HUDView(this); 
WindowManager.LayoutParams params = new WindowManager.LayoutParams(

     WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY, 
     WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH, 
     PixelFormat.TRANSLUCENT); 
     params.gravity = Gravity.RIGHT | Gravity.TOP; 
     params.setTitle("Load Average"); 
WindowManager wm = (WindowManager) getSystemService(WINDOW_SERVICE); 
wm.addView(mView, params); 
} 

@Override 
public void onDestroy() { 
super.onDestroy(); 
Toast.makeText(getBaseContext(),"onDestroy", Toast.LENGTH_LONG).show(); 
if(mView != null) 
{ 
    ((WindowManager) getSystemService(WINDOW_SERVICE)).removeView(mView); 
    mView = null; 
} 
    } 
} 

class HUDView extends ViewGroup { 
private Paint mLoadPaint; 

public HUDView(Context context) { 
super(context); 
Toast.makeText(getContext(),"HUDView", Toast.LENGTH_LONG).show(); 

mLoadPaint = new Paint(); 
mLoadPaint.setAntiAlias(true); 
mLoadPaint.setTextSize(10); 
mLoadPaint.setARGB(255, 255, 0, 0); 
} 

@Override 
protected void onDraw(Canvas canvas) { 
super.onDraw(canvas); 
canvas.drawText("Hello World", 5, 15, mLoadPaint); 
} 

@Override 
protected void onLayout(boolean arg0, int arg1, int arg2, int arg3, int  arg4) { 
} 

@Override 
public boolean onTouchEvent(MotionEvent event) { 


Toast.makeText(getContext(),"onTouchEvent", Toast.LENGTH_LONG).show(); 
return true; 
    } 
} 

Answer 1

Floaties bir göz atın. Bu kütüphane tam olarak ne istersen yapar.