Android Studio – Android resource not found exception for notification icon

We are too facing this kinda of error a lot in our app. So,By doing little bit of search, I am changing ContextCompat to AppCompatResources to get the drawables. I seriously don’t know now yet it will be beneficial for our app or not but reason to change is simply because the way ContextCompat returns result with respect to the way the AppCompatResources returns result. ContextCompat is just calling context’s getDrawable method which in turn calls Resource’s getDrawable method which in turn calls ResourceImpl getValueForDensity method and finally calling a native method. Whereas AppCompatResources calls AppCompatDrawableManager‘s getDrawable method which try different approaches to get the drawable and eventually fallback to ContextCompat if none of the approaches work. This seems to be better candidate for me get the drawable.

AppCompatDrawableManager’s getDrawable method

public Drawable getDrawable(@NonNull Context context, @DrawableRes int resId,
        boolean failIfNotKnown) {
    checkVectorDrawableSetup(context);
    Drawable drawable = loadDrawableFromDelegates(context, resId);
    if (drawable == null) {
        drawable = createDrawableIfNeeded(context, resId);
    }
    if (drawable == null) {
        drawable = ContextCompat.getDrawable(context, resId);
    }
    if (drawable != null) {
        // Tint it if needed
        drawable = tintDrawable(context, resId, failIfNotKnown, drawable);
    }
    if (drawable != null) {
        // See if we need to 'fix' the drawable
        DrawableUtils.fixDrawable(drawable);
    }
    return drawable;
}

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