Useful tools

[Alonexx]

With a quick overview of PaintView, I found that it's a powerful canvas. However, It's a little wired that why a View needs javax encryption API?

I'm sure that there's no need to call Bitmap.recycle() anymore since Android 4.0, because Android 4.0 moved the Bitmap from native heap to dalvik heap. Once there is no strong reference to a Bitmap, it will be garbage collected.