这里说三种方式:

//1.相册单张照片选择  (Android系统默认提供了该方式)

protected void getImageFromAlbum() {

Intent intent = new Intent(Intent.ACTION_PICK);

intent.setType("image/*");//相片类型

startActivityForResult(intent, REQUEST_CODE_PICK_IMAGE);

}

//2.拍照(Android系统默认提供了该方式)

protected void getImageFromCamera() {

String state = Environment.getExternalStorageState();

if (state.equals(Environment.MEDIA_MOUNTED)) {

Intent getImageByCamera = new Intent("android.media.action.IMAGE_CAPTURE");

startActivityForResult(getImageByCamera, REQUEST_CODE_CAPTURE_CAMEIA);

}else {

Toast.makeText(getApplicationContext(), "请确认已经插入SD卡", Toast.LENGTH_LONG).show();

}

}

3.从相册选多张图片 需要自己查询来实现

ListmDatas = new ArrayList();

// 只查询jpeg和png的图片

Uri ImagesUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;//获取照片地址uri

ContentResolver contentResolver = mContext.getContentResolver();//创建内容解析者

Cursor cursor = contentResolver.query(ImagesUri, null  //数据库查询

, MediaStore.Images.Media.MIME_TYPE + "=? or " + MediaStore.Images.Media.MIME_TYPE + "=?"

, new String[]{"image/jpeg", "image/png"}

, MediaStore.Images.Media.DATE_MODIFIED);

while (cursor.moveToNext()){

String path = cursor.getString(cursor.getColumnIndex(MediaStore.Images.Media.DATA));

mDatas.add(path);

}

cursor.close();

最好在onActivityResult()方法里得到

//        if(data != null){

//            if (requestCode == REQUEST_CODE_PICK_IMAGE) {//相册

//                Uri uri = data.getData();

//                Log.i("TAG", "uri:--------"+uri);

//                byte[] bytes = getBitmapFromUri(uri);

//                Glide.with(mContext).load(bytes).into(ivRou);

//

//            } else if (requestCode == REQUEST_CODE_CAPTURE_CAMEIA ) {//相机

//

//                Uri uri = data.getData();

//                byte[] bytes = getBitmapFromUri(uri);

//                if(uri == null){

//                    Bundle bundle = data.getExtras();

//                    if(bundle != null){

//                        bytes = (byte[]) bundle.get("data");

//                    }

//                }

//                byte[] Bytes = getBitmapFromUri(uri);

//                Glide.with(mContext).load(Bytes).into(ivRou);

//            }

//        }