1. 效果图

2. xml中

3. 自定义view

CircleImg.java

package com.etoury.etoury.ui.view;import android.content.Context;import android.graphics.Bitmap;import android.graphics.Canvas;import android.graphics.Color;import android.graphics.Paint;import android.graphics.PixelFormat;import android.graphics.PorterDuffXfermode;import android.graphics.Rect;import android.graphics.Bitmap.Config;import android.graphics.PorterDuff.Mode;import android.graphics.drawable.Drawable;import android.util.AttributeSet;import android.widget.ImageView;public class CircleImg extends ImageView{    public CircleImg(Context context) {        super(context);        // TODO Auto-generated constructor stub    }    public CircleImg(Context context, AttributeSet attrs) {        super(context, attrs);    }    public CircleImg(Context context, AttributeSet attrs, int defStyle) {        super(context, attrs, defStyle);    }    @Override    protected void onDraw(Canvas canvas) {        Drawable drawable = getDrawable();        if (drawable == null) {            return;        }        if (getWidth() == 0 || getHeight() == 0) {            return;        }        int width = drawable.getIntrinsicWidth();        int height = drawable.getIntrinsicHeight();        Bitmap.Config config = drawable.getOpacity() != PixelFormat.OPAQUE ? Bitmap.Config.ARGB_8888                : Bitmap.Config.RGB_565;        Bitmap b = Bitmap.createBitmap(width, height, config);        // Bitmap b = ((BitmapDrawable) drawable).getBitmap();        // 注意，下面三行代码要用到，否在在View或者surfaceview里的canvas.drawBitmap会看不到图        Canvas can = new Canvas(b);        drawable.setBounds(0, 0, width, height);        drawable.draw(can);        if (null == b) {            return;        }        Bitmap bitmap = b.copy(Bitmap.Config.ARGB_8888, true);        int w = getWidth(), h = getHeight();        Bitmap roundBitmap = getCroppedBitmap(bitmap, w);        canvas.drawBitmap(roundBitmap, 0, 0, null);    }    public static Bitmap getCroppedBitmap(Bitmap bmp, int radius) {        Bitmap sbmp;        if (bmp.getWidth() != radius || bmp.getHeight() != radius)            sbmp = Bitmap.createScaledBitmap(bmp, radius, radius, false);        else            sbmp = bmp;        Bitmap output = Bitmap.createBitmap(sbmp.getWidth(), sbmp.getHeight(),                Config.ARGB_8888);        Canvas canvas = new Canvas(output);        final int color = 0xffa19774;        final Paint paint = new Paint();        final Rect rect = new Rect(0, 0, sbmp.getWidth(), sbmp.getHeight());        paint.setAntiAlias(true);        paint.setFilterBitmap(true);        paint.setDither(true);        canvas.drawARGB(0, 0, 0, 0);        paint.setColor(Color.parseColor("#BAB399"));        canvas.drawCircle(sbmp.getWidth() / 2 + 0.7f,                sbmp.getHeight() / 2 + 0.7f, sbmp.getWidth() / 2 + 0.1f, paint);        paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));        canvas.drawBitmap(sbmp, rect, rect, paint);        return output;    }}