Android基于Path的addRoundRect，Canvas剪切clipPath简洁的圆形图实现，Kotlin（2）

import android.content.Context
import android.graphics.BitmapFactory
import android.graphics.Canvas
import android.graphics.Path
import android.util.AttributeSet
import androidx.appcompat.widget.AppCompatImageViewclass MyView : AppCompatImageView {private var mRadius = 0f //半径private val mPath = Path()constructor(ctx: Context, attributeSet: AttributeSet) : super(ctx, attributeSet) {val mBmpSrc = BitmapFactory.decodeResource(resources, R.mipmap.pic, null)setImageBitmap(mBmpSrc)}override fun onDraw(canvas: Canvas) {canvas.save()val w = measuredWidth.toFloat()val h = measuredHeight.toFloat()val mini = Math.min(w, h)mRadius = mini / 2fval left = (w - mini) / 2fval top = (h - mini) / 2fval right = (w + mini) / 2fval bottom = (h + mini) / 2fmPath.addRoundRect(left, top, right, bottom, mRadius, mRadius, Path.Direction.CW)canvas.clipPath(mPath)super.onDraw(canvas)canvas.restore()}
}

Android基于Path的addRoundRect，Canvas剪切clipPath简洁的圆角矩形实现，Kotlin（1）-CSDN博客文章浏览阅读850次，点赞12次，收藏8次。Android RoundedBitmapDrawable：Android官方的圆角图形图象实现方案RoundedBitmapDrawable是Android在support v4的扩展包中新增的实现圆角图形的关键类，借助RoundedBitmapDrawable的帮助，可以轻松的以Android标准方式实现圆角图形图象。头像有标准的四方形，也有圆形（如QQ）。Android水平渐变色圆角矩形一个Android水平渐变色圆角矩形，如图：其实实现很简单，主要感觉颜色渐变，圆角弧度比较漂亮，故记录下来。https://blog.csdn.net/zhangphil/article/details/144586015