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Screenshot not captured while agora.io video call Android Java

I have implemented a video calling feature in our app. There is a button which captures the screenshot of specific view. On video call there a two views Local View and Remote View. These are actually Relative and Frame layouts. In this case i want take screenshot of remote view but it's just giving me a blank image. I think somehow agora video calling not allowing it but there should be any settings or something to disable this but that i have not found yet. here is the code:
Setting up remote video:
mRemoteContainer is a RelativeLayout and mRemoteVideo is VideoCanvas by agora.io
Similarly mLocalContainer is FrameLayout.
private void setupRemoteVideo(int uid) {
ViewGroup parent = mRemoteContainer;
if (parent.indexOfChild(mLocalVideo.view) > -1) {
parent = mLocalContainer;
}
if (mRemoteVideo != null) {
return;
}
SurfaceView view = RtcEngine.CreateRendererView(getBaseContext());
view.setZOrderMediaOverlay(parent == mLocalContainer);
parent.addView(view);
mRemoteVideo = new VideoCanvas(view, VideoCanvas.RENDER_MODE_HIDDEN, uid);
mRemoteVideo.view.setWillNotDraw(false);
mRtcEngine.setupRemoteVideo(mRemoteVideo);
}
This function used to get bitmap from the view
private Bitmap getScreenShotFromView(View v) {
Bitmap screeShoot = null;
try {
screeShoot = Bitmap.createBitmap(v.getMeasuredWidth(), v.getMeasuredHeight(), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(screeShoot);
v.draw(canvas);
} catch (Exception e) {
Log.e("GFG", "Failed to capture screenshot because:" + e.getMessage());
}
return screeShoot;
}
I tried function call with both view but getting black or blank image
Bitmap bitmap = getScreenShotFromView(mRemoteVideo.view);
Bitmap bitmap = getScreenShotFromView(mRemoteContainer);
Your help will be really appreciated for me as i stuck on this issue.
By the way I used the same view capturing technique on iOS with swift
and Its working fine.

How to take full scrolled screenshot in flutter_native_screenshot

So in my Flutter project I'm using this plugin flutter_native_screenshot
It works quite well for single screenshot of the page, but it's not taking full scrollable screenshot. I've checked behind this plugin use a code like takeScreenshotOld()
View view = this.activity.getWindow().getDecorView().getRootView();
view.setDrawingCacheEnabled(true);
Bitmap bitmap = null;
if (this.renderer.getClass() == FlutterView.class) {
bitmap = ((FlutterView) this.renderer).getBitmap();
} else if (this.renderer.getClass() == FlutterRenderer.class) {
bitmap = ((FlutterRenderer) this.renderer).getBitmap();
}
The question is:- How can I make this code to take full scrolled screenshot.
I've tried flutter screenshot plugin as well but unfortunately it fails to capture flutter_tex (webview)
and shows blank. The native plugin worked but unable to get full page.

This answer is using Java but you can follow the same logic in flutter,
You will need to do the following steps:
Implement a listener to the scrollView scrolling, then every time the height is dividable by screen height, take a screenshot
Display display = getWindowManager().getDefaultDisplay();
int height = display.getHeight();
mScrollView.getViewTreeObserver().addOnScrollChangedListener(new ViewTreeObserver.OnScrollChangedListener() {
#Override
public void onScrollChanged() {
int scrollY = targetScrollView.getScrollY();
if (scrollY % height == 0){
takeScreenShotAndSaveIt();
}
}
});
Manullay scroll through the scroll view
mScrollView.post(new Runnable() {
public void run() {
mScrollView.fullScroll(mScrollView.FOCUS_DOWN);
}
});
Finally you will remove scroll listener and merge the saved images of the screen shots.
Another option is to take the full view as bitmap and save it: https://stackoverflow.com/a/43817149/19074651

how to set up a wallpaper app using firebase recyclerview?

I created a wallpaper app ,I'm using Firebase to upload images to a database and shown it to RecyclerView.
I can see the images that I uploaded in Firebase through the RecyclerView and I can also pass that image to a another activity.
but my problem is, I can't set the image as wallpaper, when I set the button the image is disappearing.
my code to set wallpaper:
img = (ImageView) findViewById(R.id.images);
Intent intent = getIntent();
String webUrl = intent.getStringExtra("URL");
Picasso.get().load(webUrl).into(img);
fab1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
WallpaperManager wallpaper = WallpaperManager.getInstance(getApplicationContext());
try {
wallpaper.setResource(+ R.drawable.pug); //by using this code i can set a image in directory a wallpaper
//wallpaper.setResource(+ R.id.images); //i tried this one it doesn't work it just crashes the app
}catch (IOException e){
e.printStackTrace();
}
}
});
what I want is to set any image shown in the ImageView
is there any way

I'm assuming you already have the permission in place for this:
<uses-permission android:name="android.permission.SET_WALLPAPER"/>
I'm not sure what you are trying to achieve, but I am assuming you want the user to choose an image from the list and set it as wallpaper.
You can only pass a Bitmap or Resource ID to WallpaperManager. In this case, fetch the image as a Bitmap first, and then load into the ImageView.
Since you are already using Picasso, you can do this:
Picasso.with(this).load(webUrl).centerCrop().into(new Target() {
#Override
public void onBitmapLoaded(Bitmap bitmap, Picasso.LoadedFrom from) {
wallpaper.setBitmap(bitmap);
}
}

Android/Java Asynchronous Image Download Task Never Stops Running

I'm attempting parse a JSON payload and place the information in Relative Layout View.
I use this STANDARD asynchronous download routine to obtain the bitmaps to be placed in the appropriate ImageView:
public class AsyncDownloadImage extends AsyncTask<String,Void,Bitmap>{
ImageView bmImage;
public AsyncDownloadImage(ImageView bmImage){
this.bmImage = bmImage;
}
#Override
protected Bitmap doInBackground(String... urls) {
String urldisplay = null;
urldisplay = urls[0];
Bitmap merchViewBitMap = Bitmap.createBitmap(90,90,Bitmap.Config.ARGB_8888);
try{
InputStream in = new URL(urldisplay).openStream();
merchViewBitMap = BitmapFactory.decodeStream(in);
in.close();
}catch(Exception e){
System.out.println(String.format("Image Download Exception ==> %s", e.toString()));
}
return merchViewBitMap;
}
#Override
protected void onPostExecute(Bitmap result) {
super.onPostExecute(result);
bmImage.setImageBitmap(result);
}
}
It's called this way in the getView method of the Adapter class:
String imageUrl = String.format("https://www.xxxxxx.com/va/public/render_image?image_id=%s", currentMerchItem.getMt_image_id());
new AsyncDownloadImage(viewHolder.imageview).execute(imageUrl);
The images are downloaded and the ImageView(s) are set, but they are downloaded repeatedly and infinitely. Multiple images seem to be in an ImageView and when scrolled through they change as each is gif.
How do I stop this after the last image in the list is downloaded?!
-TU

The adapters getView method will be called each time the view of the adapter (listview for example) needs to refresh item's view. When you scroll for example you will get many calls to the getview method (depends on the list length ofcourse). At least you need to manage which images are already being loaded from the net in your case. You also have a lot of open source code for lazy loading exactly for cases like yours.
You can also check this thread, it may help you:
Lazy load of images in ListView

Updating an ImageView with an image from a URL

Within my android application, I'm wanting to update an ImageView, with an image specified from a URL. This URL has been fetched via an API as part of an AsyncTask.
I have defined the ImageView as follows:
<ImageView
android:adjustViewBounds="true"
android:scaleType="fitCenter"
android:layout_height="wrap_content"
android:id="#+id/product_image"
android:src="#drawable/no_product_image"
android:layout_marginRight="6dip"
android:layout_width="wrap_content"
/>
That way, whilst the data is loading, there is a blank image present behind a ProgressDialog.
As part of the doInBackground of the AsyncTask, after fetching the product details, I call:
private void createProductScreen(Product product){
Log.i(TAG, "Updating product screen");
//Set the product image
ImageView imgView =(ImageView)findViewById(R.id.product_image);
Drawable drawable = loadImageFromWeb(product.getImageUrl());
imgView.setImageDrawable(drawable);
Log.i(TAG, "Set image");
}
The image is loading from the web as follows:
private Drawable loadImageFromWeb(String url){
Log.i(TAG, "Fetching image");
try{
InputStream is = (InputStream) new URL(url).getContent();
Drawable d = Drawable.createFromStream(is, "src");
Log.i(TAG, "Created image from stream");
return d;
}catch (Exception e) {
//TODO handle error
Log.i(TAG, "Error fetching image");
System.out.println("Exc="+e);
return null;
}
}
When this runs I see "Created image from stream" in the log, but don't see "Set image" and the onPostExecute of the AsyncTask is never called.
Does anyone have any ideas on the issue or a better way of updating the image from the blank image to the product image?

You should get an Exception since you are trying to set the ImageView in a separated thread.
imgView.setImageDrawable(drawable); must be called in the same UI thread.
Since you are using the AsyncTask class, the right place for set the imageview object is inside the onPostExecute method.
Change you logic in a way that the doInBackground will returns the Drawable object to the onPostExecute method, then use it calling imgView.setImageDrawable(drawable);

Set Imageview to drawable image
Drawable drawable = loadImageFromWeb(product.getImageUrl());
here is problem.
Drawable drawable = loadImageFromWeb(XXXXUrl);
Imageview.setImageDrawable(drawable);
Give a proper URL to drawable.