Android Studio 圆形头像带边框的

效果显示：
(没有边框的)

(有边框的)

1、创建自定义ImagView控件
(1)、没有边框的

package chenglong.activitytest.pengintohospital.utils;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapShader;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.Rect;
import android.graphics.Shader;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.ColorDrawable;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.widget.ImageView;

/**
 *
 * 圆形图片
 * Created by LICHENGLONG on 2017-10-09.
 */

public class mine_ImageViewPlus extends ImageView{
    private Paint mPaintBitmap = new Paint(Paint.ANTI_ALIAS_FLAG);
    private Paint mPaintBorder = new Paint(Paint.ANTI_ALIAS_FLAG);
    private Bitmap mRawBitmap;
    private BitmapShader mShader;
    private Matrix mMatrix = new Matrix();
    private float mBorderWidth = dip2px(15);
    private int mBorderColor = 0x80bebebe;

    public mine_ImageViewPlus(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    @Override
    protected void onDraw(Canvas canvas) {
        Bitmap rawBitmap = getBitmap(getDrawable());
        if (rawBitmap != null){
            int viewWidth = getWidth();
            int viewHeight = getHeight();
            int viewMinSize = Math.min(viewWidth, viewHeight);
            float dstWidth = viewMinSize;
            float dstHeight = viewMinSize;
            if (mShader == null || !rawBitmap.equals(mRawBitmap)){
                mRawBitmap = rawBitmap;
                mShader = new BitmapShader(mRawBitmap, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);
            }
            if (mShader != null){
                mMatrix.setScale((dstWidth - mBorderWidth * 2) / rawBitmap.getWidth(), (dstHeight - mBorderWidth * 2) / rawBitmap.getHeight());
                mShader.setLocalMatrix(mMatrix);
            }
            mPaintBitmap.setShader(mShader);
            mPaintBorder.setStyle(Paint.Style.STROKE);
            mPaintBorder.setStrokeWidth(mBorderWidth);
            mPaintBorder.setColor(mBorderColor);
            float radius = viewMinSize / 2.0f;
            canvas.drawCircle(radius, radius, radius - mBorderWidth / 2.0f, mPaintBorder);
            canvas.translate(mBorderWidth, mBorderWidth);
            canvas.drawCircle(radius - mBorderWidth, radius - mBorderWidth, radius - mBorderWidth, mPaintBitmap);
        } else {
            super.onDraw(canvas);
        }
    }

    private Bitmap getBitmap(Drawable drawable){
        if (drawable instanceof BitmapDrawable){
            return ((BitmapDrawable)drawable).getBitmap();
        } else if (drawable instanceof ColorDrawable){
            Rect rect = drawable.getBounds();
            int width = rect.right - rect.left;
            int height = rect.bottom - rect.top;
            int color = ((ColorDrawable)drawable).getColor();
            Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
            Canvas canvas = new Canvas(bitmap);
            canvas.drawARGB(Color.alpha(color), Color.red(color), Color.green(color), Color.blue(color));
            return bitmap;
        } else {
            return null;
        }
    }

    private int dip2px(int dipVal) {
        float scale = getResources().getDisplayMetrics().density;
        return (int)(dipVal * scale + 0.5f);
    }
}

(2)、有边框的

package chenglong.activitytest.pengintohospital.utils;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapShader;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.Rect;
import android.graphics.Shader;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.ColorDrawable;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.widget.ImageView;

/**
 *
 * 带边框的圆形图片
 * Created by LICHENGLONG on 2017-10-09.
 */

public class ImageViewPlus extends ImageView{
    private Paint mPaintBitmap = new Paint(Paint.ANTI_ALIAS_FLAG);
    private Paint mPaintBorder = new Paint(Paint.ANTI_ALIAS_FLAG);//
    private Bitmap mRawBitmap;
    private BitmapShader mShader;
    private Matrix mMatrix = new Matrix();
    private float mBorderWidth = dip2px(15);
    private int mBorderColor = 0xFF0080FF;//外边框的颜色

    public ImageViewPlus(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    @Override
    protected void onDraw(Canvas canvas) {
        Bitmap rawBitmap = getBitmap(getDrawable());
        if (rawBitmap != null){
            int viewWidth = getWidth();
            int viewHeight = getHeight();
            int viewMinSize = Math.min(viewWidth, viewHeight);
            float dstWidth = viewMinSize;
            float dstHeight = viewMinSize;
            if (mShader == null || !rawBitmap.equals(mRawBitmap)){
                mRawBitmap = rawBitmap;
                mShader = new BitmapShader(mRawBitmap, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);
            }
            if (mShader != null){
                mMatrix.setScale((dstWidth - mBorderWidth * 2) / rawBitmap.getWidth(), (dstHeight - mBorderWidth * 2) / rawBitmap.getHeight());
                mShader.setLocalMatrix(mMatrix);
            }
            mPaintBitmap.setShader(mShader);
            mPaintBorder.setStyle(Paint.Style.STROKE);
            mPaintBorder.setStrokeWidth(mBorderWidth / 5.0f);//外边框的大小
            mPaintBorder.setColor(mBorderColor);//添加外边框
            float radius = viewMinSize / 2.0f;
            canvas.drawCircle(radius, radius, radius - mBorderWidth / 6.0f, mPaintBorder);
            canvas.translate(mBorderWidth, mBorderWidth);
            canvas.drawCircle(radius - mBorderWidth, radius - mBorderWidth, radius, mPaintBitmap);
        } else {
            super.onDraw(canvas);
        }
    }

    private Bitmap getBitmap(Drawable drawable){
        if (drawable instanceof BitmapDrawable){
            return ((BitmapDrawable)drawable).getBitmap();
        } else if (drawable instanceof ColorDrawable){
            Rect rect = drawable.getBounds();
            int width = rect.right - rect.left;
            int height = rect.bottom - rect.top;
            int color = ((ColorDrawable)drawable).getColor();
            Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
            Canvas canvas = new Canvas(bitmap);
            canvas.drawARGB(Color.alpha(color), Color.red(color), Color.green(color), Color.blue(color));
            return bitmap;
        } else {
            return null;
        }
    }

    private int dip2px(int dipVal) {
        float scale = getResources().getDisplayMetrics().density;
        return (int)(dipVal * scale + 0.5f);
    }
}

2、创建页面xml代码

.activitytest.pengintohospital.utils.ImageViewPlus
    android:id="@+id/mine_iv_headportrait"
    android:layout_width="150dp"
    android:layout_height="150dp"
    android:src="@mipmap/hospital" />