自定义任一一个圆角圆角ImageView ，RelativeLayout

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapShader;
import android.graphics.Canvas;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.Path;
import android.graphics.RectF;
import android.graphics.Shader;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;



public class RoundImageView extends androidx.appcompat.widget.AppCompatImageView {



    private Paint mPaint;
    Path path = new Path();
    // 3x3 矩阵，主要用于缩小放大
    private Matrix mMatrix;

    //渲染图像，使用图像为绘制图形着色
    private BitmapShader mBitmapShader;
    private float[] radiusArray = { 0f, 0f, 0f, 0f, 0f, 0f, 0f, 0f };
    RectF rectF =