Question

我无法理解我将更改哪些代码以设置自定义文件存储路径。此活动成功启动了Android相机应用程序，让您拍摄视频，然后返回到视频保存到的活动：“文件：///storage/emulated/0/videoapp/examplevideoname.mp4”

我只是想将它保存到我选择的其他文件夹中，但这是来自Google教程，我无法弄清楚我需要更改哪个部分： http://developer.android.com/guide/topics/media/camera.html#intents http://developer.android.com/guide/topics/data/data-storage.html#db

所有帮助都非常感谢！谷歌代码甚至被评论为有帮助，但我已经足够新，我仍然不清楚。

对我来说很明显“getExternalStoragePublicDirectory”与它有关，但我无法弄清楚我是否应该用我的新路径或其他东西替换那部分。

以下是代码段：

的onCreate：

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_video);

    //create new Intent
    Intent intent = new Intent(MediaStore.ACTION_VIDEO_CAPTURE);

    fileUri = getOutputMediaFileUri(MEDIA_TYPE_VIDEO);  // create a file to save the video
    intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);  // set the image file name

    intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 1); // set the video image quality to high

    // start the Video Capture Intent
    startActivityForResult(intent, CAPTURE_VIDEO_ACTIVITY_REQUEST_CODE);

    if (savedInstanceState == null) {
        getSupportFragmentManager().beginTransaction()
                .add(R.id.container, new PlaceholderFragment()).commit();
    }
}

onActivityResult：

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {

    if (requestCode == CAPTURE_VIDEO_ACTIVITY_REQUEST_CODE) {
        if (resultCode == RESULT_OK) {
            // Video captured and saved to fileUri specified in the Intent
            Toast.makeText(this, "Video saved to:\n" +
                     data.getData(), Toast.LENGTH_LONG).show();
        } else if (resultCode == RESULT_CANCELED) {
            // User cancelled the video capture
        } else {
            // Video capture failed, advise user
        }
    }
}

getOutputMediaFile：

private static File getOutputMediaFile(int type){
    // To be safe, you should check that the SDCard is mounted
    // using Environment.getExternalStorageState() before doing this.

    File mediaStorageDir = new File(Environment.getExternalStoragePublicDirectory(
              Environment.DIRECTORY_PICTURES), "MyCameraApp");
    // This location works best if you want the created images to be shared
    // between applications and persist after your app has been uninstalled.

    // Create the storage directory if it does not exist
    if (! mediaStorageDir.exists()){
        if (! mediaStorageDir.mkdirs()){
            Log.d("MyCameraApp", "failed to create directory");
            return null;
        }
    }

    // Create a media file name
    String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
    File mediaFile;
  if(type == MEDIA_TYPE_VIDEO) {
        mediaFile = new File(mediaStorageDir.getPath() + File.separator +
        "VID_"+ timeStamp + ".mp4");
    } else {
        return null;
    }

    return mediaFile;
}

Answer 1

如果你想创建自己的文件夹，那么你必须在这里更改

 File mediaStorageDir = new File(Environment.getExternalStoragePublicDirectory(
              Environment.DIRECTORY_PICTURES), "MyCameraApp");

其中，“MyCameraApp”是您的文件夹名称，因此您可以替换您的文件夹和Environment.getExternalStoragePublicDirectory（Environment.DIRECTORY_PICTURES）这是您的目录，如果您只想保存SD卡，那么请用Environment.getExternalStorageDirectory替换。它在/sdcard/your_folder_name/your_video_file.mp4中创建一个文件夹

设置自定义视频存储路径

1 个答案: