I want an imageview for my app just like fb messenger chat header which will be shown everywhere when the app is running in background and we are working on another app. I have seen some codes but they just make it visible at a fixed position not movable the code is here and i have just used textview for the time being instead of imageview.
public void onCreate() {
super.onCreate();
//mView = new HUDView(this);
mButton = new Button(this);
mButton.setText("Overlay button");
mButton.setOnTouchListener(new OnTouchListener(){
#Override
public boolean onTouch(View v, MotionEvent event) {
Toast.makeText(getApplicationContext(),"Overlay button event", Toast.LENGTH_SHORT).show();
return false;
}
});
WindowManager.LayoutParams params = new WindowManager.LayoutParams(
WindowManager.LayoutParams.WRAP_CONTENT,
WindowManager.LayoutParams.WRAP_CONTENT,
WindowManager.LayoutParams.TYPE_SYSTEM_ALERT,
WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
PixelFormat.TRANSLUCENT);
params.gravity = Gravity.RIGHT | Gravity.CENTER;
params.setTitle("Load Average");
WindowManager wm = (WindowManager) getSystemService(WINDOW_SERVICE);
wm.addView(mButton, params);
}
Any help would be appreciated.
The link of Lalit Poptani is good. You have to use a service for this kind of feature.
Please, look the example form Waza_Be, here: https://stackoverflow.com/a/15980900/5098294
Related
I'm new to the accessibility stuff on Android. While going through the classes and documentation I came across TYPE_ACCESSIBILITY_OVERLAY inside the WindowManager class.
The documentation says (only the relevant text)
For example, if there is a full screen accessibility overlay that is
touchable, the windows below it will be introspectable by an
accessibility service even though they are covered by a touchable
window.
So I set out to achieve just that, a full screen accessibility overlay and try to introspect the windows below it
Extended AccessibilityService and added my full screen overlay when onServiceConnected is called (the inspiration for adding overlay came from here)
#Override
protected void onServiceConnected() {
WindowManager wm = (WindowManager) getSystemService(WINDOW_SERVICE);
FrameLayout mLayout = new FrameLayout(this);
WindowManager.LayoutParams lp = new WindowManager.LayoutParams();
lp.type = WindowManager.LayoutParams.TYPE_ACCESSIBILITY_OVERLAY;
lp.format = PixelFormat.TRANSLUCENT;
lp.flags |= WindowManager.LayoutParams.FLAG_FULLSCREEN;
lp.width = WindowManager.LayoutParams.MATCH_PARENT;
lp.height = WindowManager.LayoutParams.MATCH_PARENT;
lp.gravity = Gravity.TOP;
wm.addView(mLayout, lp);
mLayout.setOnTouchListener(new View.OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
// Here I'm getting the touch events on the overlay I added
return false;
}
});
}
Now, the question is, how do I introspect or find the windows below this overlay? Even in the onAccessibilityEvent callback I get just this overlay window. getWindows() always has a size of 1. Doesn't it refute the assertion made above for TYPE_ACCESSIBILITY_OVERLAY?
Relevant info: To receive the touch events on the overlay I have disabled touchExplorationMode in the service settings
android:canRequestTouchExplorationMode="false"
What you seem to be missing is flagRetrieveInteractiveWindows on your configuration. These properties and window layout paremeters configuration should work, without requiring for you to disable canRequestTouchExplorationMode in order to get the events and having getWindows return the AccessibilityWindowInfo instances underneath yours:
<?xml version="1.0" encoding="utf-8"?>
<accessibility-service xmlns:android="http://schemas.android.com/apk/res/android"
android:packageNames="test.demo.com.tests"
android:accessibilityEventTypes="typeAllMask"
android:accessibilityFlags="flagRetrieveInteractiveWindows|flagReportViewIds|flagIncludeNotImportantViews"
android:accessibilityFeedbackType="feedbackAllMask"
android:notificationTimeout="100"
android:canRetrieveWindowContent="true"
/>
And on service connected:
#Override
protected void onServiceConnected() {
WindowManager windowManager = (WindowManager) getSystemService(WINDOW_SERVICE);
FrameLayout layout = new FrameLayout(this);
WindowManager.LayoutParams params = new WindowManager.LayoutParams(WindowManager.LayoutParams.MATCH_PARENT,
WindowManager.LayoutParams.MATCH_PARENT, WindowManager.LayoutParams.TYPE_ACCESSIBILITY_OVERLAY,
WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE| WindowManager.LayoutParams.FLAG_FULLSCREEN |
WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE|
WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS|
WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH,
PixelFormat.TRANSLUCENT);
params.gravity = Gravity.TOP;
windowManager.addView(layout, params);
layout.setOnTouchListener(new View.OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
//You can either get the information here or on onAccessibilityEvent
return false;
}
});
}
EDIT:
Added FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS to accomplish full screen and removed canRequestTouchExplorationMode since the flag associated to this property should not be included and, therefore, of no use.
I need a view to show up at the top of my application, and when it's shown, it can keep showing at the top of all my application's other view(all the fragment and activity). It sounds like a Floating Action Button, but will always show at the top of my app.
I know I can do it via adding view to my phone's WindowManager, and hide it when I quit my app, show it again when I resume my app. This tricky method can work, but it also require some additional permission, which is I am trying to avoid.
If I only want to show in my app, can I achieve it without asking additional permission from user? If the answer is yes, then how? The key seems like some LayoutParams for the view, I tried but failed.
Would be nice if answer can show some detail code and explanation.
You have to use WindowManager for this purpose
First add permission in manifest
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>
Add image which you want to appear.
chatheadImg = (ImageView)chatheadView.findViewById(R.id.chathead_img);
Then make the service and add window manager to it.
WindowManager.LayoutParams params = new WindowManager.LayoutParams(
WindowManager.LayoutParams.WRAP_CONTENT,
WindowManager.LayoutParams.WRAP_CONTENT,
WindowManager.LayoutParams.TYPE_PHONE,
WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE | WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH | WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS,
PixelFormat.TRANSLUCENT);
params.gravity = Gravity.TOP | Gravity.LEFT;
params.x = 0;
params.y = 100;
And just register touch events on view
chatheadView.setOnTouchListener(new View.OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
Switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
//To do
break;
case MotionEvent.ACTION_MOVE:
break;
});
check these tutorials for better understanding
http://www.androidhive.info/2016/11/android-floating-widget-like-facebook-chat-head/
https://github.com/henrychuangtw/Android-ChatHead
adding this permission in manifest
windowManager = (WindowManager) getSystemService(WINDOW_SERVICE);
LayoutInflater layoutInflater = (LayoutInflater) getApplicationContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
layoutView = layoutInflater.inflate(R.layout.ringing_layout, null);
phoneTv = layoutView.findViewById(R.id.phone);
Log.d("TAG", "showLayout: " + phoneTv );
p = new WindowManager.LayoutParams(
// Shrink the window to wrap the content rather than filling the screen
600, 600,
WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY,
WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
| WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED,
PixelFormat.TRANSLUCENT);
layoutView.findViewById(R.id.close).setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
windowManager.removeView(layoutView);
}
});
p.gravity = Gravity.CENTER | Gravity.CENTER;
p.x = 0;
p.y = 0;
windowManager.addView(layoutView, p);
Log.d("TAG", "showLayout: ");
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I have created chathead that floats on the screen but how to call the view from it. Have been searching for this from long time.
want to make a view like this
this is the view I have been trying to make. it has gesture Overlay in itGesture Magic this app is using this view
The concept is simple, you basically need to create a Service that will dynamically manage your view by adding/removing it to the window manager.
public class StandOutViewService extends Service {
private WindowManager mWindowManager;
private View mStandOutView;
#Override
public void onCreate() {
super.onCreate();
mWindowManager = (WindowManager) getSystemService(Context.WINDOW_SERVICE);
mStandOutView = new View(this);
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.LEFT;
params.x = 100;
params.y = 500;
mWindowManager.addView(mStandOutView, params);
}
#Override
public void onDestroy() {
super.onDestroy();
}
#Nullable
#Override
public IBinder onBind(Intent intent) {
return null;
}
}
You can check out this library to get a starting point:
https://github.com/pingpongboss/StandOut
Please be aware that you need to handle permissions by using:
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
and for Android 6 and above you may need to instruct your users to active your service from the accessibility settings menu.
I found the answer and thought to share with you guys hope it will help
final WindowManager.LayoutParams params = new WindowManager.LayoutParams(
WindowManager.LayoutParams.MATCH_PARENT,
900,
WindowManager.LayoutParams.TYPE_PHONE,
WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
PixelFormat.TRANSLUCENT);
params.x=0;
if (FloatDirections.y>700){
params.y=FloatDirections.y-700;}
else {
params.y=0;
}
params.gravity= Gravity.TOP|Gravity.CENTER;
serviceRunning=true;
Toast.makeText(getApplicationContext(),String.valueOf(FloatDirections.x)+" "+String.valueOf(FloatDirections.y),Toast.LENGTH_SHORT).show();
wm = (WindowManager) getSystemService(WINDOW_SERVICE);
LayoutInflater inflater = (LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE);
myView = inflater.inflate(R.layout.gesture_recognition, null);
b11=(Button)myView.findViewById(R.id.newbtn);
GestureOverlayView ov = (GestureOverlayView)myView.findViewById(R.id.gestures_overlay_float);
ov.addOnGesturePerformedListener(this);
and then use OnGesturePerformed
#Override
public void onGesturePerformed(GestureOverlayView gestureOverlayView, Gesture gesture) {
// Toast.makeText(getApplicationContext(),"hi",Toast.LENGTH_SHORT).show();
mydatabase.execSQL("CREATE TABLE IF NOT EXISTS PackageName(GestureName VARCHAR,PackName VARCHAR,Action VARCHAR);");
cursor=mydatabase.rawQuery("select * from PackageName",null);
ArrayList<Prediction> predictions = store.recognize(gesture);
Is there a way to block touch on ANY application from a service? I've been thinking about getWindow(), but that is impossible in service. Also, I've been thinking about getting current activity and then use getWindow(). I hope you get the point of what am I tried to achieve.
Thanks to David Medenjak I have managed to solve the problem. This solution is working on Android APIs below 23 and it's going to make the screen black and block touches until you longpress on the screen.
WindowManager windowManager = (WindowManager) getSystemService(WINDOW_SERVICE);
ImageView black = new ImageView(this);
black.setImageResource(R.drawable.black);
WindowManager.LayoutParams params = new WindowManager.LayoutParams(
WindowManager.LayoutParams.MATCH_PARENT,
WindowManager.LayoutParams.MATCH_PARENT,
WindowManager.LayoutParams.TYPE_SYSTEM_ALERT,
WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE |
WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL,
PixelFormat.TRANSLUCENT);
params.gravity = Gravity.TOP | Gravity.LEFT;
params.x = 0;
params.y = 0;
windowManager.addView(black, params);
black.getLayoutParams().height = windowManager.getDefaultDisplay().getHeight();
black.getLayoutParams().width = windowManager.getDefaultDisplay().getWidth();
black.setOnLongClickListener(new View.OnLongClickListener() {
#Override
public boolean onLongClick(View v) {
return false;
}
});
I want to implement notifications like the one in the following image.
Notification appears any time. I think it's of course a background service waiting for new messages from the server then shows this. What I think this is an activity implemented as dialog with this custom UI. Am I correct? And is it a normal startActivity method from the service? And how do I do the transition animation to make it appears slowly from left to right with zooming when show up?
Check out this link http://www.piwai.info/chatheads-basics. He provides information about how to add them on your screen.
The trick is to add a View to the WindowManager like following code
private WindowManager windowManager;
private ImageView chatHead;
public void addView()
{
windowManager = (WindowManager) getSystemService(WINDOW_SERVICE);
chatHead = new ImageView(this);
chatHead.setImageResource(R.drawable.android_head);
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.LEFT;
params.x = 0;
params.y = 100;
windowManager.addView(chatHead, params);
}
Don't forget to add the permission <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>