Develop Reference

Android show overlay view at a specific location

I want to show an overlay view at some specific bound in screen ( like Rect(30,60,200, 400)). My code always gives a fullscreen overlay view, not the desired rect with specific top left, width, height.
My layout file:
<?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">
<View
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#50018786"/>
</RelativeLayout>
Main Activity code:
public class MainActivity extends AppCompatActivity {
public static int ACTION_MANAGE_OVERLAY_PERMISSION_REQUEST_CODE = 5469;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && !Settings.canDrawOverlays(this)) {
Intent myIntent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION);
startActivity(myIntent);
} else {
onAuthorizedOverlay();
}
}
private void onAuthorizedOverlay() {
Button button = findViewById(R.id.inflate_button);
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
final WindowManager.LayoutParams params = new WindowManager.LayoutParams(
WindowManager.LayoutParams.WRAP_CONTENT,
WindowManager.LayoutParams.WRAP_CONTENT,
WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY,
WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN,
PixelFormat.TRANSLUCENT
);
// params.x = 30; // these code have no effect
// params.y = 60;
// params.width = 170;
// params.height = 340;
Rect r = new Rect(30,60,200, 400);
WindowManager windowManager = (WindowManager) getApplicationContext().getSystemService(Context.WINDOW_SERVICE);
LayoutInflater li = (LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE);
RelativeLayout mTopView = (RelativeLayout) li.inflate(R.layout.my_overlay, null);
windowManager.addView(mTopView, params);
}
});
}
#Override
protected void onActivityResult(int requestCode, int resultCode, #Nullable Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == ACTION_MANAGE_OVERLAY_PERMISSION_REQUEST_CODE) {
if (!Settings.canDrawOverlays(this)) {
// You don't have permission
} else {
// Do as per your logic
onAuthorizedOverlay();
}
}
}
}
I noticed that the commented code I made for params has no effect.
How can I show an overlay view at a certain rect?

You are not using mentioned rectangle anywhere.
Check this out.
private void onAuthorizedOverlay() {
Button button = findViewById(R.id.inflate_button);
button.setOnClickListener(view -> {
WindowManager windowManager = (WindowManager) getApplicationContext().getSystemService(Context.WINDOW_SERVICE);
LayoutInflater li = (LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE);
RelativeLayout mTopView = (RelativeLayout) li.inflate(R.layout.my_overlay, null);
WindowManager.LayoutParams overlayParams = new WindowManager.LayoutParams(
WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY,
WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE |
WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL |
WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN);
overlayParams.height = 100;
overlayParams.width = 200;
overlayParams.x = 300;
overlayParams.y = 400;
windowManager.addView(mTopView, overlayParams);
});
}

Window Manager click issue

Below code snippet only shows view but click on buttons not working. I have tried all solution but nothing seems to work. Another service have same code fragment with different layout works.
public int onStartCommand(final Intent intent, int flags, int startId) {
LayoutInflater inflater = (LayoutInflater)getApplicationContext().getSystemService(LAYOUT_INFLATER_SERVICE);
if (inflater!=null)
v = inflater.inflate(R.layout.layout_accept_sos, null);
close = v.findViewById(R.id.close);
close.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
onDestroy();
}
});
getDirection = v.findViewById(R.id.getDirection);
getDirection.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
Intent intent1=new Intent();
intent1.setAction("open_map");
sendBroadcast(intent1);
// onDestroy();
}
});
params = new WindowManager.LayoutParams(LayoutParams.MATCH_PARENT, WindowManager.LayoutParams.MATCH_PARENT, WindowManager.LayoutParams.TYPE_SYSTEM_ALERT, LayoutParams.FLAG_ALT_FOCUSABLE_IM | WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL, PixelFormat.TRANSLUCENT);
params.gravity = Gravity.LEFT | Gravity.TOP;
params.x = 0;
params.y = 0;
wm = (WindowManager) getSystemService(Context.WINDOW_SERVICE);
wm.addView(v, params);
return START_STICKY;
}

You need to use WindowManager.FLAG_NOT_FOCUSABLE to make it clickable.
params = new WindowManager.LayoutParams(LayoutParams.MATCH_PARENT,
WindowManager.LayoutParams.MATCH_PARENT,
WindowManager.LayoutParams.TYPE_SYSTEM_ALERT,
WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
PixelFormat.TRANSLUCENT);
More description available at https://developer.android.com/reference/android/view/WindowManager.LayoutParams.html#FLAG_NOT_FOCUSABLE

Android OnClickListener inside services

I'm trying to create an image which is on top of all windows with android services and this is onCreate method:
#Override
public void onCreate() {
super.onCreate();
mWindowsManger = (WindowManager) getSystemService(WINDOW_SERVICE);
mFloatingImage = new ImageView(this);
mFloatingImage.setImageResource(R.mipmap.ic_launcher);
mFloatingImage.setAlpha(0.5f);
mParams = new WindowManager.LayoutParams(
WindowManager.LayoutParams.WRAP_CONTENT,
WindowManager.LayoutParams.WRAP_CONTENT,
WindowManager.LayoutParams.TYPE_PHONE,
WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
PixelFormat.TRANSLUCENT);
mParams.gravity = Gravity.TOP | Gravity.LEFT;
mParams.x = 0;
mParams.y = 100;
mFloatingImage.setClickable(true);
mFloatingImage.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
System.out.print("clicked");
}
});
mWindowsManger.addView(mFloatingButtonImage, mParams);
}
My problem is OnClickListener not working instead OnTouchListener works .
Is there any way to implement OnClikListener in services ?

Do this:
#Override
public void onCreate() {
super.onCreate();
mWindowsManger = (WindowManager) getSystemService(WINDOW_SERVICE);
mFloatingImage = new ImageView(this);
mFloatingImage.setImageResource(R.mipmap.ic_launcher);
mFloatingImage.setAlpha(0.5f);
mParams = new WindowManager.LayoutParams(
WindowManager.LayoutParams.WRAP_CONTENT,
WindowManager.LayoutParams.WRAP_CONTENT,
WindowManager.LayoutParams.TYPE_PHONE,
WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
PixelFormat.TRANSLUCENT);
mParams.gravity = Gravity.TOP | Gravity.LEFT;
mParams.x = 0;
mParams.y = 100;
mFloatingImage.setClickable(true);
mWindowsManger.addView(mFloatingButtonImage, mParams);
mFloatingImage.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
System.out.print("clicked");
}
});
}
BUT I DO THIS RIGHT NOW IT WORKS FOR ME:
rl = (RelativeLayout) findViewById(R.id.rl);
b = (Button) findViewById(R.id.button1);
img = new ImageView(MainActivity.this);
img.setImageResource(R.drawable.ic_launcher);
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(
(int) LayoutParams.WRAP_CONTENT, (int) LayoutParams.WRAP_CONTENT);
params.addRule(RelativeLayout.CENTER_IN_PARENT);
img.setLayoutParams(params);
rl.addView(img);
img.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Toast.makeText(getBaseContext(), "Image Clicked",
Toast.LENGTH_SHORT).show();
}
});

Abhishek Das have given good answer. My answer is subset of his answer
Just you need to call :
mWindowsManger.addView(mFloatingButtonImage, mParams);
first and then :
mFloatingImage.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
System.out.print("clicked");
}
});
Before adding view to view hierarchy, the click listener may not work

WindowManager.removeView() gives IllegalStateException

I'm trying to create a custom chatHead which would show only when a particular app is open. (e.g. Messenger or WhatsApp). And would be destroyed when that app has been closed.
Here's my code-
#Override
public void onCreate() {
super.onCreate();
windowManager = (WindowManager) getSystemService(WINDOW_SERVICE);
chatHead = new ImageView(this);
chatHead.setImageResource(R.drawable.view_icon);
final WindowManager.LayoutParams params = new WindowManager.LayoutParams(
WindowManager.LayoutParams.WRAP_CONTENT,
WindowManager.LayoutParams.WRAP_CONTENT,
WindowManager.LayoutParams.TYPE_PHONE,
WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
PixelFormat.TRANSLUCENT);
params.gravity = Gravity.TOP | Gravity.START;
params.x = 0;
params.y = 100;
windowManager.addView(chatHead, params);
getForeground();
chatHead.setOnClickListener(new View.OnClickListener() {
/*.....
.....
ClickListener implemented
.....
.....
*/
});
}
Here, in the onCreate(), I'm calling the getForeground() method, which gets the current activity in the foreground
public String getForeground() {
final ActivityManager am = (ActivityManager) this.getSystemService(ACTIVITY_SERVICE);
String foreground = am.getRunningTasks(1).get(0).topActivity.getPackageName();
if (foreground.equals("com.whatsapp")) {
if (chatHead==null)
onResume();
}
else
onDestroy();
new Thread() {
#Override
public void run() {
getForeground();
}
}.start();
return foreground;
}
Where, onResume() is-
public void onResume() {
final WindowManager.LayoutParams params = new WindowManager.LayoutParams(
WindowManager.LayoutParams.WRAP_CONTENT,
WindowManager.LayoutParams.WRAP_CONTENT,
WindowManager.LayoutParams.TYPE_PHONE,
WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
PixelFormat.TRANSLUCENT);
params.gravity = Gravity.TOP | Gravity.START;
params.x = 0;
params.y = 100;
windowManager.addView(chatHead,params);
}
And onDestroy() is-
#Override
public void onDestroy() {
super.onDestroy();
if (chatHead != null)
windowManager.removeView(chatHead);
else
chatHead=null;
}
However, it shows an IllegalStateException as follows-
java.lang.IllegalArgumentException: View=android.widget.ImageView{41f07a28 V.ED..C. ......ID 0,0-93,99} not attached to window manager
at android.view.WindowManagerGlobal.findViewLocked(WindowManagerGlobal.java:370)
at android.view.WindowManagerGlobal.removeView(WindowManagerGlobal.java:299)
at android.view.WindowManagerImpl.removeView(WindowManagerImpl.java:79)
at automated.whatsapp.com.automatedtest.ChatHeadService.onDestroy(ChatHeadService.java:172)
at automated.whatsapp.com.automatedtest.ChatHeadService.getForeground(ChatHeadService.java:188)
at automated.whatsapp.com.automatedtest.ChatHeadService$3.run(ChatHeadService.java:194)
So, basically, it says that the chatHead is not attached to the WindowManager. How do I correct this error?

You can use try-catch around your window manager like this
try{
WindowManager?.removeView(view);
}catch(e:Exception){
Log.e(debug_tag, "view not found");
}
or can check windowtoken of view exist
if (view?.windowToken!=null) {
WindowManager?.removeView(view);
}
because when your view is not added or remove view later your windowmanager make a new exception

Not sure if this can help you but this is what I did:
#Override
protected void onUserLeaveHint() {
if (this.chatHead != null) {
this.runOnUiThread(new Runnable() {
#Override
public void run() {
((WindowManager) getApplicationContext().getSystemService(Service.WINDOW_SERVICE)).removeView(chatHead);
}
});
}
}

Pop up android app

I have a pop up that displays an image upon clicking a button. I got to display the pop up but the image is so small and I want it to occupy the 90% of the screen and add a close button to it.
Here is my code:
PopupWindow popUp;
LinearLayout layout;
TextView tv;
LayoutParams params;
ImageView imageView;
boolean click = true;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_bmi);
popUp = new PopupWindow(this);
layout = new LinearLayout(this);
tv = new TextView(this);
imageView = new ImageView(this);
imageView.setImageResource(R.drawable.animalbite);
WindowManager wm = (WindowManager) getContext().getSystemService(Context.WINDOW_SERVICE);
Display display = wm.getDefaultDisplay();
int fullScreenWidth = display.getWidth();
int dialogWidth = (int) (fullScreenWidth * 0.9);
WindowManager.LayoutParams params = getWindow().getAttributes();
params.height = LayoutParams.WRAP_CONTENT;
params.width = dialogWidth;
getWindow().setAttributes(params);
imageView.setLayoutParams(params);
//tv.setText("Hi this is a sample text for popup window");
layout.addView(imageView, params);
popUp.setContentView(layout);
Button ViewBmi = (Button) findViewById(R.id.ViewBmi);
ViewBmi.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
if (click) {
popUp.showAtLocation(layout, Gravity.CENTER, 10 ,10);
click = false;
} else {
popUp.dismiss();
click = true;
}
}
});
}
Here is the display:
ANy ideas?

Try this...
PopupWindow popUp;
LinearLayout layout;
TextView tv;
LayoutParams params,params2;
ImageView imageView;
boolean click = true;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Display display = getWindowManager().getDefaultDisplay();
final int height = (display.getHeight()*90)/100;
final int width = (display.getWidth()*90)/100;
popUp = new PopupWindow(this);
layout = new LinearLayout(this);
tv = new TextView(this);
imageView = new ImageView(this);
imageView.setImageResource(R.drawable.ic_launcher);
params = new LayoutParams(width,height-50);
layout.setOrientation(LinearLayout.VERTICAL);
layout.addView(imageView, params);
Button button = new Button(this);
button.setText("Close");
params2 = new LayoutParams(100,50);
layout.addView(button,params2);
popUp.setContentView(layout);
button.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
popUp.dismiss();
click = true;
}
});
Button ViewBmi = (Button) findViewById(R.id.button1);
ViewBmi.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
if (click) {
popUp.showAtLocation(layout, Gravity.CENTER, 10, 10);
popUp.update(10, 20, width,height);
click = false;
} else {
popUp.dismiss();
click = true;
}
}
});
}
Try This....
Button button = new Button(this);
button.setText("Close");
params2 = new LayoutParams(100,50);
--->params2.setMargins(100, 0, 0, 0);
layout.addView(button,params2);

I'd do it like this:
height = (int)(0.9*getWindow().getWindowManager().getDefaultDisplay().getHeight());
params.height = height;

Try:
params = new LayoutParams(LayoutParams.MATCH_PARENT,LayoutParams.WRAP_CONTENT);
...
layout.addView(imageView, params);
This way the ImageView will be as wide, as possible.
If the underlying dialog is not wide enough, then you can set it's width also full screen:
WindowManager.LayoutParams params = getWindow().getAttributes();
params.height = LayoutParams.WRAP_CONTENT;
params.width = LayoutParams.MATCH_PARENT;
getWindow().setAttributes(params);
Or if you want it to be for example 90% of the screen, then:
// get the width of the whole screen
Display display = getWindow().getDefaultDisplay();
int fullScreenWidth = display.getWidth();
//then set 90% of it to the width of the Dialog:
int dialogWidth = (int) fullScreenWidth * 0.9);
WindowManager.LayoutParams params = getWindow().getAttributes();
params.height = LayoutParams.WRAP_CONTENT;
params.width = dialogWidth;
getWindow().setAttributes(params);