位图工厂无法解码流空指针

Question

我使用以下代码获取图像并将其分配给ImageView。它在Kindle Fire HD（API 15）上运行良好，但在Google Nexus 7上，该设备正在流式传输来自Google的Picassa的照片。如何让毕加萨/流媒体照片工作？

@SuppressLint("NewApi")
@SuppressWarnings("deprecation")
protected void onActivityResult(int requestCode, int resultCode, 
           Intent imageReturnedIntent) {
        super.onActivityResult(requestCode, resultCode, imageReturnedIntent); 
        switch(requestCode) { 
        case SELECT_PHOTO:
            if(resultCode == RESULT_OK){  
                Uri selectedImage = imageReturnedIntent.getData();
                String[] filePathColumn = {MediaStore.Images.Media.DATA};
                Cursor cursor = getContentResolver().query(
                                   selectedImage, filePathColumn, null, null, null);
                cursor.moveToFirst();
                int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
                String filePath = cursor.getString(columnIndex);
                cursor.close();

                Bitmap pic = BitmapFactory.decodeFile(filePath);
                mProfilePic = new BitmapDrawable(getResources(),pic);
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN)
                    mChangePicImgButton.setBackground(mProfilePic);
                else
                    mChangePicImgButton.setBackgroundDrawable(mProfilePic);
            }
        }
    }

Answer 1

filePath 可能在 null at

Bitmap pic = BitmapFactory.decodeFile(filePath);

您确定设备上存在该文件吗？

编辑：如果您在使用Picasa时遇到问题，这里有一个答案：检索Picasa图像以从图库上传