import com.makeramen.roundedimageview.RoundedTransformationBuilder; //导入依赖的package包/类
private static Transformation getTransformation(Context context) {
    if (PICASSO_CIRCLE_TRANSFORMATION == null) {
        final int color;
        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
            color = context.getResources().getColor(R.color.black);
        } else {
            color = context.getColor(R.color.black);
        }
        PICASSO_CIRCLE_TRANSFORMATION = new RoundedTransformationBuilder()
                .borderColor(color)
                .borderWidthDp(2)
                .scaleType(ImageView.ScaleType.CENTER_CROP)
                .oval(true)
                .build();
    }
    return PICASSO_CIRCLE_TRANSFORMATION;
}
 

import com.makeramen.roundedimageview.RoundedTransformationBuilder; //导入依赖的package包/类
/**
 * Get circle transformation
 * @param borderWidth in dp
 * @param borderColor color of the border
 */
public static Transformation getCircleTransformation(int borderWidth, int borderColor) {
    return new RoundedTransformationBuilder()
            .oval(true)
            .borderWidthDp(borderWidth)
            .borderColor(borderColor)
            .build();
}
 

import com.makeramen.roundedimageview.RoundedTransformationBuilder; //导入依赖的package包/类
/**
 * Get circle transformation without border
 */
public static Transformation getCircleTransformationNoBorder() {
    return new RoundedTransformationBuilder()
            .oval(true)
            .build();
}
 

import com.makeramen.roundedimageview.RoundedTransformationBuilder; //导入依赖的package包/类
public static Transformation getRoundedTransformation(Context context)
{
    return new RoundedTransformationBuilder()
            .borderColor(context.getResources().getColor(R.color.divider_translucent)).borderWidthDp(1)
            .cornerRadiusDp(48).oval(true).build();
}
 

import com.makeramen.roundedimageview.RoundedTransformationBuilder; //导入依赖的package包/类
public RoundedTransformationBuilder roundedTransformation() {
  return new RoundedTransformationBuilder();
}