How to take google Maps v2 snapshot?
Try for Kotlin Android like this when click on button to take google map snapshot:
val snapshotReadyCallback : GoogleMap.SnapshotReadyCallback = GoogleMap.SnapshotReadyCallback { selectedScreenShot ->
ivMapPreview.setImageBitmap(selectedScreenShot);
}
val onMapLoadedCallback : GoogleMap.OnMapLoadedCallback = GoogleMap.OnMapLoadedCallback {
mMap!!.snapshot(snapshotReadyCallback)
}
mMap!!.setOnMapLoadedCallback(onMapLoadedCallback)
Be successful.
This one is better, it waits for your Map to be fully rendered, before taking the snapshot.
It was updated on 31-Oct-2013.
mMap.setOnMapLoadedCallback(new GoogleMap.OnMapLoadedCallback() {
public void onMapLoaded() {
mMap.snapshot(new GoogleMap.SnapshotReadyCallback() {
public void onSnapshotReady(Bitmap bitmap) {
// Write image to disk
FileOutputStream out = new FileOutputStream("/mnt/sdcard/map.png");
bitmap.compress(Bitmap.CompressFormat.PNG, 90, out);
}
});
}
});
Extracted from http://googlegeodevelopers.blogspot.sg/2013/10/ghost-markers-in-your-neighborhood-new.html
You have to call the Google maps snapshot method in a button listener because if you should take it too early, it will give you error bitmap width has to be larger than 0
or something like this.
Here is the code
private void button_listener() {
Button button = (Button) findViewById(R.id.button1);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
SnapshotReadyCallback callback = new SnapshotReadyCallback() {
Bitmap bitmap;
@Override
public void onSnapshotReady(Bitmap snapshot) {
bitmap = snapshot;
try {
FileOutputStream out = new FileOutputStream("/mnt/sdcard/Download/TeleSensors.png");
bitmap.compress(Bitmap.CompressFormat.PNG, 90, out);
} catch (Exception e) {
e.printStackTrace();
}
}
};
map.snapshot(callback);
}
});
}