Exception. Invalid radius value!

[misterbobdobalina]

Get error with
app:outerShadowWidth="0.5"

mOuterShadowRect.width() / 2.0f
in:
paint.setShader(new RadialGradient(... , ... , here! , ...

public Paint getDefaultOuterShadowPaint() {
    final Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
    paint.setStyle(Paint.Style.FILL);
    paint.setShader(new RadialGradient(CENTER, CENTER, mOuterShadowRect.width() / 2.0f, OUTER_SHADOW_COLORS, OUTER_SHADOW_POS,
            TileMode.MIRROR));
    return paint;
}

[greenspand]

Try to add eaven numbers instead of 5. For example 6.