Intent intent2 = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);

startActivityForResult(intent2, 1);

protected void onActivityResult(int requestCode, int resultCode, Intent data) 

{

try

{

　　Bitmap bitmap = (Bitmap)data.getExtras().get("data");

　　personImg.setImageBitmap(CircleImage(bitmap));

　　File file=new File(Environment.getExternalStorageDirectory().getAbsolutePath());

　　FileOutputStream out=new FileOutputStream(file.getAbsolutePath()+"/person.jpg");

　　//保存图片

　　bitmap.compress(Bitmap.CompressFormat.JPEG, 100, out);

} catch (Exception e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

super.onActivityResult(requestCode, resultCode, data);

}

Intent intent=new Intent();

        //制定内容的类型为图像

        intent.setType("image/*");

        //制定调用系统内容的action

        intent.setAction(Intent.ACTION_GET_CONTENT);

        //显示系统相册

        startActivityForResult(intent, 0);

protected void onActivityResult(int requestCode, int resultCode, Intent data)

    {

        try {

            Uri uri=data.getData();

            //获取封装相册图像的数据

            Cursor cursor=getContentResolver().query(uri, null, null, null, null);

            cursor.moveToFirst();

            //获取选中相册的文件路径

            String filePath=cursor.getString(1);

            cursor.close();

            //创建bitmap对象

            Bitmap map=BitmapFactory.decodeFile(filePath);

            File file=new File("/sdcard/img.jpg");

            FileOutputStream out=new FileOutputStream(file);

            //保存图片

            map.compress(Bitmap.CompressFormat.JPEG, 100, out);

        } catch (FileNotFoundException e)

        {

            // TODO Auto-generated catch block

            e.printStackTrace();

        }

    }