Android中file开头的uri转换为content开头的ur:

直接上代码~

    /**
     * file开头的uri转换为content开头的uri
     * @param uri 任意uri
     * @return content开头的uri
     */
    private Uri file2Content(Uri uri) {
        if (uri.getScheme().equals("file")) {
            String path = uri.getEncodedPath();
            if (path != null) {
                path = Uri.decode(path);
                ContentResolver cr = this.getContentResolver();
                StringBuffer buff = new StringBuffer();
                buff.append("(")
                        .append(MediaStore.Images.ImageColumns.DATA)
                        .append("=")
                        .append("'" + path + "'")
                        .append(")");
                Cursor cur = cr.query(
                        MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
                        new String[]{MediaStore.Images.ImageColumns._ID},
                        buff.toString(), null, null);
                int index = 0;
                for (cur.moveToFirst(); !cur.isAfterLast(); cur.moveToNext()) {
                    index = cur.getColumnIndex(MediaStore.Images.ImageColumns._ID);
                    index = cur.getInt(index);
                }
                if (index == 0) {
                    //do nothing
                } else {
                    Uri uri_temp = Uri
                            .parse("content://media/external/images/media/"
                                    + index);
                    if (uri_temp != null) {
                        uri = uri_temp;
                    }
                }
            }
        }
        LogUtil.i("uri = " + uri);
        return uri;
    }

参照博客：http://blog.csdn.net/dyfleoo/article/details/8118855