Android 5.1.1棒棒糖如果从图库中选择图像,则返回空文件路径

Question

Android 5.1.1棒棒糖如果从图库中选择图像,则返回空文件路径.以下代码在5.1.1以下的所有设备中都能正常工作,但在棒棒糖5.1.1中不起作用

Uri contentUri = data.getData();
Cursor cursor = null;
    try {
        String[] proj = {MediaStore.Images.Media.DATA};
        cursor = context.getContentResolver().query(contentUri, proj, null, null, null);
        int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
        cursor.moveToFirst();
        return cursor.getString(column_index);
    } finally {
        if (cursor != null) {
            cursor.close();
        }
    }

cursor.getString(column_index)返回null.

Answer 1

现在我最终得到了这个从画廊获取图像.我已经在4.4,5.0.1和5.1.1上测试了它,但它也适用于以前的版本(使用新的和旧的Google照片应用程序),应该不那么hacky并且不需要检查Android版本.

public static Uri handleImageUri(Uri uri) {
    if (uri.getPath().contains("content")) {
        Pattern pattern = Pattern.compile("(content://media/.*\\d)");
        Matcher matcher = pattern.matcher(uri.getPath());
        if (matcher.find())
            return Uri.parse(matcher.group(1));
        else
            throw new IllegalArgumentException("Cannot handle this URI");
    }
    return uri;
}

有了这个,我使用了之前用过的相同代码来获取图像路径:

public static String getRealPathFromURI(Context context, Uri uri) {
    Cursor cursor = null;
    try {
        Uri newUri = handleImageUri(uri);
        String[] proj = { MediaStore.Images.Media.DATA };
        cursor = context.getContentResolver().query(newUri,  proj, null, null, null);
        int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
        cursor.moveToFirst();
        return cursor.getString(column_index);
    } catch (Exception e){
        return null;
    } finally {
        if (cursor != null) {
            cursor.close();
        }
    }
}

Answer 2

针对 android lollipop 5.1.1 的临时破解。现在运行良好。但我对这个非官方的黑客并不满意。

Uri selectedImage = data.getData();
        if (Build.VERSION.SDK_INT == 22) {
            if (selectedImage != null && selectedImage.toString().length() > 0) {
                try {
                    final String extractUriFrom = selectedImage.toString();
                    String firstExtraction = extractUriFrom.contains("com.google.android.apps.photos.contentprovider") ? extractUriFrom.split("/1/")[1] : extractUriFrom;
                    firstExtraction = firstExtraction.contains("/ACTUAL") ? firstExtraction.replace("/ACTUAL", "").toString() : firstExtraction;

                    String secondExtraction = URLDecoder.decode(firstExtraction, "UTF-8");
                    selectedImage = Uri.parse(secondExtraction);
                } catch (UnsupportedEncodingException e) {

                } catch (Exception e) {

                }
            }
        }