在Android 10上将视频保存并插入图库 [英] Save and Insert video to gallery on Android 10

问题描述

我正在尝试将视频保存到图库中，以下代码在除 Android Q 以外的所有Android版本上均能正常运行：

I'm trying to save a video to the gallery,the following code works well an all Android versions except the Android Q:

private void getPath() {
        String videoFileName = "video_" + System.currentTimeMillis() + ".mp4";
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
        ContentResolver resolver = getContentResolver();
        ContentValues contentValues = new ContentValues();
        contentValues.put(MediaStore.MediaColumns.DISPLAY_NAME, videoFileName);
        contentValues.put(MediaStore.MediaColumns.MIME_TYPE, "video/mp4");
        contentValues.put(MediaStore.MediaColumns.RELATIVE_PATH, "Movies/" + "Folder");
        contentValues.put(MediaStore.Video.Media.IS_PENDING, 1);
        Uri collection = MediaStore.Video.Media.getContentUri(MediaStore.VOLUME_EXTERNAL_PRIMARY);
        Uri videoUri = resolver.insert(collection, contentValues);
        if (videoUri != null) {
            try (ParcelFileDescriptor pfd = resolver.openFileDescriptor(videoUri, "w", null)) {
                OutputStream outputStream = null;
                if (pfd != null) {
                    outputStream = resolver.openOutputStream(videoUri);
                    outputStream.flush();
                    outputStream.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        contentValues.clear();
        contentValues.put(MediaStore.Video.Media.IS_PENDING, 0);
        if (videoUri != null) {
            resolver.update(videoUri, contentValues, null, null);
        }
        } else {
            File storageDir = new File(
                    Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MOVIES)
                            + "/Folder");
            boolean success = true;
            if (!storageDir.exists()) {
                success = storageDir.mkdirs();
            }
            if (success) {
                File videoFile = new File(storageDir, videoFileName);
                savedVideoPath = videoFile.getAbsolutePath();
            }
        }
    }

我也尝试使用get getExternalFilesDir（），但不起作用，画廊中没有创建视频

I also tried using get getExternalFilesDir() , but doesn't work, no video created in the gallery

String videoFileName = "video_" + System.currentTimeMillis() + ".mp4";
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
            File imageFile = null;
            File storageDir = new File(getExternalFilesDir(Environment.DIRECTORY_DCIM),
                    "Folder");
            boolean success = true;
            if (!storageDir.exists()) {
                success = storageDir.mkdirs();
            }
            if (success) {
                imageFile = new File(storageDir, videoFileName);
            }
            savedVideoPath = imageFile.getAbsolutePath();

我使用第三方库记录 SurfaceView ，此库需要一个路径来保存录制的视频：

I use a 3rd-party library to record SurfaceView, this library requires a path to save the recorded video :

 mRenderPipeline = EZFilter.input(this.effectBmp)
                    .addFilter(new GalleryEffects().getEffect(VideoMaker.this, i))
                    .enableRecord(savedVideoPath, true, false)
                    .into(mRenderView);

录制视频完成后，录制的视频将以给定路径 savedVideoPath ，除了 Android Q

When record video finished, the recorded video saved with the given path savedVideoPath , everything works just fine on all android version except the Android Q

之外，所有版本在所有Android版本上都可以正常运行，保存视频后，当我检查时，我在图库中看到一个空视频

After saving the video, when I check, I get an empty video in the gallery

推荐答案

我想创建一个使用它的路径

I want to create a path to use it

您从 MediaStore 获取 Uri 。没有路径。 Uri 不仅不能转换为路径，而且您无法在Android 10及更高版本上访问该位置的文件系统。

You are getting a Uri from MediaStore. There is no "path". Not only can a Uri not be converted to a path, but you do not have filesystem access to that location on Android 10 and higher.

摆脱掉：

        if (videoUri != null) {
            savedVideoPath = getRealPathFromURI(videoUri);
        }

，因为它不起作用。

将其替换为代码，将视频写到 Uri 所标识的位置。使用 resolver.openOutputStream（）将 OutputStream 移至该位置。特别是，在调用 resolver.update（）的之前，执行 IS_PENDING 的操作 0 ，具体说：我已经写完 Uri ；您现在可以使用内容了。

Replace it with your code to write out your video to the location identified by the Uri. Use resolver.openOutputStream() to get an OutputStream to that location. In particular, do this before you call resolver.update() for an IS_PENDING of 0, as that specifically says "I am done writing to the Uri; you can use the content now".

或者，使用您有权访问的文件系统位置之一，例如 getExternalFilesDir（）上下文上使用c $ c>，并删除 MediaStore 之类的东西。

Or, use one of the filesystem locations that you do have access to, such as getExternalFilesDir() on Context, and get rid of the MediaStore stuff.

这篇关于在Android 10上将视频保存并插入图库的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！