In my application, I have to set a large icon for a notification. LargeIcon must be a Bitmap, and my drawables are vector images (the new feature in Android, see this link) The problem is when I try to decode a resource that is a vector image, I get a null returned.
Here is the sample of code :
if (BitmapFactory.decodeResource(arg0.getResources(), R.drawable.vector_menu_objectifs) == null)
Log.d("ISNULL", "NULL");
else
Log.d("ISNULL", "NOT NULL");
In this sample, when I replace R.drawable.vector_menu_objectifs with a "normal" image, a png for exemple, the result is not null (I get the correct bitmap) Is there something I'm missing?
Checked on API: 17, 21, 23
public static Bitmap getBitmapFromVectorDrawable(Context context, int drawableId) {
Drawable drawable = ContextCompat.getDrawable(context, drawableId);
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
drawable = (DrawableCompat.wrap(drawable)).mutate();
}
Bitmap bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(),
drawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
drawable.draw(canvas);
return bitmap;
}
UPDATE:
Project gradle:
dependencies {
classpath 'com.android.tools.build:gradle:2.2.0-alpha5'
}
Module gradle:
android {
compileSdkVersion 23
buildToolsVersion '23.0.3'
defaultConfig {
minSdkVersion 16
targetSdkVersion 23
vectorDrawables.useSupportLibrary = true
}
...
}
...