使用新的Google相册应用选择照片已损坏

Question

我的应用程序可以从库中选择照片.我想要从这个选择中获取文件路径.

这是创建选择照片的意图的代码:

    Intent photoPickerIntent = new Intent(Intent.ACTION_PICK,
        MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
    photoPickerIntent.setType("image/*");
    startActivityForResult(photoPickerIntent, INTENT_REQUEST_CODE_SELECT_PHOTO);

这是从URI获取文件路径的代码:

    Cursor cursor = null;
    String path = null;
    try {
        String[] projection = { MediaStore.Images.Media.DATA };
        cursor = context.getContentResolver().query(contentUri, projection, null, null, null);
        int columnIndex = cursor.getColumnIndexOrThrow(projection[0]);
        cursor.moveToFirst();
        path = cursor.getString(columnIndex);
    } finally {
        if (cursor != null) {
            cursor.close();
        }
    }
    return path;

在昨天更新Google相册应用之前,一切都运转良好.path解析URI后现在为null.

URI类似于: content://com.google.android.apps.photos.contentprovider/0/1/content%3A%2F%2Fmedia%2Fexternal%2Fimages%2Fmedia%2F75209/ACTUAL

我还试图用Intent.ACTION_GET_CONTENT动作创建意图 - 没有运气.

Answer 1

下面的代码也适用于我在最新的Google相册上获取内容URI.我试过的是写入临时文件并返回临时图像URI,如果它在内容URI中具有权限.

您可以尝试相同:

private static String getImageUrlWithAuthority(Context context, Uri uri)
{
    InputStream is = null;

    if (uri.getAuthority() != null)
    {
        try
        {
            is = context.getContentResolver().openInputStream(uri);
            Bitmap bmp = BitmapFactory.decodeStream(is);
            return writeToTempImageAndGetPathUri(context, bmp).toString();
        }
        catch (FileNotFoundException e)
        {
            e.printStackTrace();
        }
        finally
        {
            try
            {
                if (is != null)
                {
                    is.close();
                }
            }
            catch (IOException e)
            {
                e.printStackTrace();
            }
        }
    }
    return null;
}

private static Uri writeToTempImageAndGetPathUri(Context inContext, Bitmap inImage)
{
    ByteArrayOutputStream bytes = new ByteArrayOutputStream();
    inImage.compress(Bitmap.CompressFormat.JPEG, 100, bytes);
    String path = MediaStore.Images.Media.insertImage(inContext.getContentResolver(), inImage, "Title", null);
    return Uri.parse(path);
}

Answer 2

这肯定是一种解决方法,但您可以提取实际内容URI,该URI显然由于某种原因而嵌入: content%3A%2F%2Fmedia%2Fexternal%2Fimages%2Fmedia%2F75209

我能够创建一个新的URI authority=media and path=external/images/media/xxx,内容解析器返回一个真实的URL.

示例代码:

String unusablePath = contentUri.getPath();
int startIndex = unusablePath.indexOf("external/");
int endIndex = unusablePath.indexOf("/ACTUAL");
String embeddedPath = unusablePath.substring(startIndex, endIndex);

Uri.Builder builder = contentUri.buildUpon();
builder.path(embeddedPath);
builder.authority("media");
Uri newUri = builder.build();