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copied!<p>I had the same problem and here if how i solved it. At first time i've tried to use Android's native <code>PopupWindow</code> class, but later i decided to use <code>WindowManager</code> like this way :</p> <pre><code>public class MyService extends Service { private View mView; private WindowManager.LayoutParams mParams; private WindowManager mWindowManager; @Override public void onCreate() { super.onCreate(); mView = new MyLoadView(this); mParams = new WindowManager.LayoutParams( WindowManager.LayoutParams.MATCH_PARENT, 150, 10, 10, WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY, WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE | WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL, PixelFormat.TRANSLUCENT); mParams.gravity = Gravity.CENTER; mParams.setTitle("Window test"); mWindowManager = (WindowManager)getSystemService(WINDOW_SERVICE); mWindowManager.addView(mView, mParams); } @Override public IBinder onBind(Intent intent) { return null; } @Override public void onDestroy() { super.onDestroy(); ((WindowManager)getSystemService(WINDOW_SERVICE)).removeView(mView); mView = null; } public class MyLoadView extends View { private Paint mPaint; public MyLoadView(Context context) { super(context); mPaint = new Paint(); mPaint.setTextSize(50); mPaint.setARGB(200, 200, 200, 200); } @Override protected void onDraw(Canvas canvas) { super.onDraw(canvas); canvas.drawText("test test test", 0, 100, mPaint); } @Override protected void onAttachedToWindow() { super.onAttachedToWindow(); } @Override protected void onDetachedFromWindow() { super.onDetachedFromWindow(); } @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { super.onMeasure(widthMeasureSpec, heightMeasureSpec); } } } </code></pre> <p>And you can call this service class via intent :</p> <pre><code>intent = new Intent(mContext, MyService.class); if (intent != null) { getContext().startService(intent); } </code></pre> <p>Also, set permission in your manifest file :</p> <pre><code><uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" /> </code></pre> <p>I referenced Android's <code>LoadAverageService.java</code> class, and i finally created a popup window from service! This is a very simple example, so you might need to add something more if you want to develop complex functions. Hope this will help you and others.</p>

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