Very poor quality and too small snapshot of map activity

Question

I want to take a snapshot of the map when user select place from place picker activity. I'm storing this image to the SD card. But it gives very poor quality. I can't understand why? I've also set image quality to 100 in this line of code: bitmap.compress(Bitmap.CompressFormat.PNG, 100, out);.

The snapshot looks like:

But I want little bit bigger image of good quality like one in the following image, which only contains text "Google":

I want the middle image of map which is displayed in the dialogue. I'm following this answer.

My code of handling the image and taking snapshot is as following:

 //opening place picker activity.
protected void onActivityResult(int requestCode, int resultCode, Intent data) {

    if (requestCode == PLACE_PICKER_REQUEST
            && resultCode == Activity.RESULT_OK) {

        final Place place = PlacePicker.getPlace(this, data);
        final CharSequence name = place.getName();
        final CharSequence address = place.getAddress();



        String attributions = (String) place.getAttributions();
        if (attributions == null) {
            attributions = "";
        }
     //   tv4.setText(place.getLatLng().toString()+"\n"+name+"\n"+address+"\n"+attributions);  To get latitide and longitudes.
        tv4.setText(address+"\n"+attributions);

        LatLngBounds selectedPlaceBounds = PlacePicker.getLatLngBounds(data);
        // move camera to selected bounds
        CameraUpdate camera = CameraUpdateFactory.newLatLngBounds(selectedPlaceBounds,0);
        mMap.moveCamera(camera);

        // take snapshot and implement the snapshot ready callback
        mMap.snapshot(new GoogleMap.SnapshotReadyCallback() {
            Bitmap bitmap=null;
            public void onSnapshotReady(Bitmap snapshot) {
                // handle snapshot here
                bitmap = snapshot;
                try {
                    FileOutputStream out = new FileOutputStream("/mnt/sdcard/Download/000p.png");
                    bitmap.compress(Bitmap.CompressFormat.PNG, 100, out);
                    Toast.makeText(Main2Activity.this,"dsfds",Toast.LENGTH_LONG).show();
                } catch (Exception e) {
                    Toast.makeText(Main2Activity.this,e.toString(),Toast.LENGTH_SHORT).show();
                    e.printStackTrace();
                }
            }

        });
    } else {
        super.onActivityResult(requestCode, resultCode, data);
    }
}

What should I change to achieve this? Is there any other way to get this snapshot?

Thanks for help!

jpvillegas · Answer 1 · 2016-08-31T13:49:56.510

Not sure of this, but it might be that the CameraUpdate is not done when you take the snapshot.

You could try this:

boolean placePicked = false;

protected void onActivityResult(int requestCode, int resultCode, Intent data) {

    if (requestCode == PLACE_PICKER_REQUEST && resultCode == Activity.RESULT_OK) {
        placePicked = true;
        // Do everything else, except taking the snapshot.
    } else {
        super.onActivityResult(requestCode, resultCode, data);
    }
}

@Override
public void onCameraIdle() {
    if (placePicked) {
        placePicked = false;

        // take snapshot...
    }
}

onCameraIdle is the method called when there was a CameraUpdate and it is finished.

Your activity should implement GoogleMap.OnCameraIdleListener, and add to your map mMap.setOnCameraIdleListener(this); inside onMapReady().

Also, I'm assuming your map is already loaded. If not, you should account for that using onMapLoaded().

Sure, what do you want to know? At the moment you call `mMap.move(cameraUpdate)` the map has to move and that takes time. So if you call `mMap.snapshot(...)` immediately after `mMap.move(...)` the map might not be ready. I have not tested this, it is just a theory, but you might want to try what I have suggested in the answer. — jpvillegas, Sep 02 '16 at 13:08

Very poor quality and too small snapshot of map activity

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