Slightly modified the code above. I noticed that for some reason sometimes the PNG file isn't created properly and it has a size of 0 bytes. So I added a check that verifies the width of the PNG > 0.
private void createMapViewImage(){
final Runnable runnable = new Runnable() {
int counter = 0;
@Override
public void run() {
counter++;
try{
final Handler handler = new Handler();
//Use 0, 0 for x/y so that you capture the entire MapView
final Bitmap bitmap = mMapView.getDrawingMapCache(0, 0,
mMapView.getWidth(), mMapView.getHeight());
Log.d("TEST", "Map Width = " + mMapView.getWidth() + " Map Height = "
+ mMapView.getHeight());
Log.d("TEST","Testing if able to create mapView bitmap. Attempt #" + counter);
if(bitmap != null){
final File dir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM);
final File output = new File(dir, "mapview.png");
final String imagePath = output.getAbsolutePath();
FileOutputStream fileOut;
try{
fileOut = new FileOutputStream(output);
bitmap.compress(Bitmap.CompressFormat.PNG, 100, fileOut);
int w = bitmap.getWidth();
if(w > 0){
fileOut.flush();
fileOut.close();
bitmap.recycle();
handler.post(mUpdateResults);
Log.d("TEST","mapView bitmap has been successfully created.");
}
else if(counter < 5){
Log.d("TEST","PNG didn't create properly so trying again.");
handler.postDelayed(this, 1000);
}
else{
Log.d("TEST","Unable to create PNG.");
}
}catch(Exception e){
e.printStackTrace();
}
}
else if(counter < 5){
handler.postDelayed(this, 2000);
}
else{
Log.d("TEST","Unable to create mapView bitmap after 5 attempts.");
}
}
catch(Exception exc){
Log.d("TEST","Unable to create mapView exception: " + exc.toString());
}
}
};
runnable.run();
}
final Runnable mUpdateResults = new Runnable() {
@Override
public void run() {
doSomething();
}
};
private void doSomething(){
final File dir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM + "/mapview.png");
//TO-DO
}
