Question

我正在Android应用程序中实现视频上传功能。我可以从图库中选择一个视频但我无法在我的活动中查看它。我不知道如何将一个视频从图库放到一个活动的视频我从库中选择视频的代码是：

mChoose.setOnClickListener(new View.OnClickListener() 
    {
        @Override
        public void onClick(View v) 
        {
            Intent intent = new Intent();
            intent.setAction(Intent.ACTION_GET_CONTENT);
            intent.addCategory(Intent.CATEGORY_OPENABLE);
            intent.setType("video/*");
            startActivityForResult(intent, REQUEST_ID);
        }
    });

onActivityResult方法代码

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) 
{
    InputStream stream = null;
    if(requestCode == REQUEST_ID && resultCode == Activity.RESULT_OK)
    {
        try
        {
            stream = getContentResolver().openInputStream(data.getData());
            //System.out.println(data.getData());
            mVideo.setVideoPath(path);
            path = getRealPathFromURI(getApplicationContext(), data.getData());
            //getRealPathFromURI is method in class to obtain path from uri
            System.out.println(path);

        }
        catch(Exception ex)
        {
            ex.printStackTrace();
        }
        if(stream != null)
        {
            try
            {
                stream.close();
            }
            catch(Exception ex)
            {
                ex.printStackTrace();
            }
        }
    }
}

Answer 1

使用此代码

 @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mVideo = (VideoView) findViewById(R.id.videoView);
        Intent intent = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
        intent.setType("video/*");
        startActivityForResult(intent, 1);
    }
 @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data)
    {
        if(requestCode == 1 && resultCode == Activity.RESULT_OK)
        {
            try
            {
                String path = data.getData().toString();
                mVideo.setVideoPath(path);
                mVideo.requestFocus();
                mVideo.start();

            }
            catch(Exception ex)
            {
                ex.printStackTrace();
            }
        }
    }

Answer 2

VideoView videoView = (VideoView) findViewById(R.id.videoview);
Uri vidFile = Uri.parse(Environment.getExternalStorageDirectory()
            .getAbsolutePath() + "path of the video");

    videoView.setVideoURI(vidFile);
    videoView
            .setMediaController(new MediaController(PlayVideoActivity.this));
    videoView.setVisibility(1);
    videoView.bringToFront();
    videoView.requestFocus();

如何在从库中选择的活动中查看视频

2 个答案: