Auto Scale TextView Text to Fit within Bounds

I'm looking for an optimal way to resize wrapping text in a TextView so that it will fit within its getHeight and getWidth bounds. I'm not simply looking for a way to wrap the text- I want to make sure it both wraps and is small enough to fit entirely on the screen. I've seen a few cases on StackOverflow where auto resizing was needed, but they are either very special cases with hack solutions, ha

[kshibata101]

自動でフォントサイズを調整するTextView[android][textview][auto_scale]