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IM油漆turtorial与如何在缩放后获得正确的坐标?用手指
class ScaleListener extends ScaleGestureDetector.SimpleOnScaleGestureListener {
@Override
public boolean onScale(ScaleGestureDetector detector) {
mScaleFactor = detector.getScaleFactor();
mScaleFactor = Math.max(1f, Math.min(mScaleFactor, 5.0f));
return true;
}
}
但缩放帆布后,我行不会在正确的位置上绘图画布?