Created
July 27, 2020 06:22
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android.graphic.Rectを回転させるサンプル
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| private fun Rect.rotateRect(degree:Float): Rect { | |
| val rectF = this.toRectF() | |
| val matrix = Matrix() | |
| matrix.setRotate(degree, rectF.centerX(), rectF.centerY()) | |
| matrix.mapRect(rectF) | |
| return rectF.toRect() | |
| } |
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