RoundedDrawable.java 文件源码

public RoundedDrawable setScaleType(ScaleType scaleType) {
  if (scaleType == null) {
    scaleType = ScaleType.FIT_CENTER;
  }
  if (mScaleType != scaleType) {
    mScaleType = scaleType;
    updateShaderMatrix();
  }
  return this;
}