获取系统图片遇到的坑–Cursor空指针异常

Cursor 空指针异常：
小米N2测试的时候报Cursor空指针异常的错误

   Uri photoUri = data.getData();   Uri photoUri = data.getData();            if (null == photoUri) {                return;            }            //获取照片路径            String[] filePathColumn = {MediaStore.Audio.Media.DATA};            Cursor cursor = getContentResolver().query(photoUri, filePathColumn, null, null, null);            cursor.moveToFirst();            mPhotoPath = cursor.getString(cursor.getColumnIndex(filePathColumn[0]));            cursor.close();

 getContentResolver().query(photoUri, filePathColumn, null, null, null);

返回未空，修改如下，做判断

 if (cursor != null) {                cursor.moveToFirst();                int columnIndex = cursor.getColumnIndex(filePathColumn[0]);                String picturePath = cursor.getString(columnIndex);                cursor.close();                mPhotoPath = picturePath;            } else {                mPhotoPath = photoUri.getPath();            }