从另一个应用程序（WhatsApp）获取路径

Question

我没有从我从whatsApp 收到的uri 的图像或视频中获取路径。

Uri 是这样的：content://com.whatsapp.provider.media/item/16695

来自 Gallery、Downloads 和其他媒体的媒体很好。

有人知道如何获得路径吗？这是我正在使用的代码：

 public String getMediaPath(Context context, Uri uri) {

    if (DEBUG)
        Log.d(TAG + " File -",
                "Authority: " + uri.getAuthority() +
                        ", Fragment: " + uri.getFragment() +
                        ", Port: " + uri.getPort() +
                        ", Query: " + uri.getQuery() +
                        ", Scheme: " + uri.getScheme() +
                        ", Host: " + uri.getHost() +
                        ", Segments: " + uri.getPathSegments().toString()
        );

    // DocumentProvider
    if (DocumentsContract.isDocumentUri(context, uri)) {
        // ExternalStorageProvider
        if (isExternalStorageDocument(uri)) {
            final String docId = DocumentsContract.getDocumentId(uri);
            final String[] split = docId.split(":");
            final String type = split[0];

            if ("primary".equalsIgnoreCase(type)) {
                return Environment.getExternalStorageDirectory() + "/" + split[1];
            }

        }
        // DownloadsProvider
        else if (isDownloadsDocument(uri)) {

            final String id = DocumentsContract.getDocumentId(uri);
            final Uri contentUri = ContentUris.withAppendedId(
                    Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));

            return getDataColumn(context, contentUri, null, null);
        }
        // MediaProvider
        else if (isMediaDocument(uri)) {
            final String docId = DocumentsContract.getDocumentId(uri);
            final String[] split = docId.split(":");
            final String type = split[0];

            Uri contentUri = null;
            if ("image".equals(type)) {
                contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
            } else if ("video".equals(type)) {
                contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
            } else if ("audio".equals(type)) {
                contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
            }

            final String selection = "_id=?";
            final String[] selectionArgs = new String[] {
                    split[1]
            };

            return getDataColumn(context, contentUri, selection, selectionArgs);
        }
    }
    // MediaStore (and general)
    else if ("content".equalsIgnoreCase(uri.getScheme())) {

        // Return the remote address
        if (isGooglePhotosUri(uri)) {
            return uri.getLastPathSegment();
        }

        return getDataColumn(context, uri, null, null);
    }
    // File
    else if ("file".equalsIgnoreCase(uri.getScheme())) {
        return uri.getPath();
    }

    return null;

}

public String getDataColumn(Context context, Uri uri, String selection,
                            String[] selectionArgs) {

    Cursor cursor = null;
    final String[] column = { MediaStore.Images.Media.DATA };
    final String[] projection = {
            column[0]
    };

    try {
        cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs,
                null);
        if (cursor != null && cursor.moveToFirst()) {
            if (DEBUG)
                DatabaseUtils.dumpCursor(cursor);

            final int index = cursor.getColumnIndexOrThrow(column[0]);
            return cursor.getString(index);
        }
    } finally {
        if (cursor != null)
            cursor.close();
    }
    return null;
}

public static boolean isExternalStorageDocument(Uri uri) {
    return "com.android.externalstorage.documents".equals(uri.getAuthority());
}

public static boolean isDownloadsDocument(Uri uri) {
    return "com.android.providers.downloads.documents".equals(uri.getAuthority());
}

public static boolean isMediaDocument(Uri uri) {
    return "com.android.providers.media.documents".equals(uri.getAuthority());
}

public static boolean isGooglePhotosUri(Uri uri) {
    return "com.google.android.apps.photos.contentprovider".equals(uri.getAuthority());
}

此日志的结果：

     if (DEBUG)
    Log.d(TAG + " File -",
            "Authority: " + uri.getAuthority() +
                    ", Fragment: " + uri.getFragment() +
                    ", Port: " + uri.getPort() +
                    ", Query: " + uri.getQuery() +
                    ", Scheme: " + uri.getScheme() +
                    ", Host: " + uri.getHost() +
                    ", Segments: " + uri.getPathSegments().toString()
    );

这是：

 Authority: com.whatsapp.provider.media, Fragment: null, Port: -1, Query: null, Scheme: content, Host: com.whatsapp.provider.media, Segments: [item, 16348]

getDataColumn 上的光标如下所示：

 >>>>> Dumping cursor
android.content.ContentResolver$CursorWrapperInner@1fc81ac
I/System.out: 0 {
I/System.out: }
I/System.out: <<<<<

原文由 Eduardo Bonfa 发布，翻译遵循 CC BY-SA 4.0 许可协议

Answer 1

protected void onCreate(Bundle savedInstanceState) { /* * 你的 OnCreate */ Intent intent = getIntent();字符串动作 = intent.getAction();字符串类型 = intent.getType();

 //VIEW"
if (Intent.ACTION_VIEW.equals(action) && type != null) {viewhekper(intent);//Handle text being sent}

原文由 Ferdi Haycal Faiz 发布，翻译遵循 CC BY-SA 4.0 许可协议