java - onItemClickListener 设置为 null 后如何重置回 true？

Question

我在 ListView 中设置了 onItemClickListener，项目包括视频、图像和文本。当用户点击 ListView 中的视频时，它可以正常播放。现在，在 playVideo() 方法中，我将 ListView 设置为 null，以便用户在播放时不应与视频交互。

我想在视频播放完毕后重新获得/重置onitemClicklisterner为true。我该如何实现这个，请帮忙。

    private void playVideo() {

    listOfMessages.setOnItemClickListener(null);

    videoText.setVideoURI(Uri.parse(chattVideo));
    frameText.setVisibility(View.VISIBLE);
    imageVideo.setVisibility(View.INVISIBLE);
    videoText.setVisibility(View.VISIBLE);
    btnText.setVisibility(View.GONE);

   try {
        videoText.setMediaController(mediaControllerText);
        mediaControllerText.show();
       videoText.seekTo(1);
      videoText.pause();
       videoText.stopPlayback();
       videoText.seekTo(1);
       videoText.resume();
    progressBarMessage.setVisibility(View.GONE);
        videoText.start();

        videoText.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
            @Override
            public void onPrepared(MediaPlayer mp) {

                mp.start();

                mp.setOnVideoSizeChangedListener(new MediaPlayer.OnVideoSizeChangedListener() {
                    @Override
                    public void onVideoSizeChanged(MediaPlayer mp, int width, int height) {

                        progressBarMessage.setVisibility(View.GONE);
                        mp.start();
                    }
                });

            }
        });

        videoText.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
            @Override
            public void onCompletion(MediaPlayer mp) {


               listOfMessages.setOnItemClickListener(this);// if I do like this android studio complains it cannot be applied inside MediaPlayer.OnCompletionListener
                btnText.setVisibility(View.VISIBLE);

            }
        });

        videoText.setOnErrorListener(new MediaPlayer.OnErrorListener() {
            @Override
            public boolean onError(MediaPlayer mp, int what, int extra) {

                FancyToast.makeText(getContext(),"Something went wrong!",FancyToast.LENGTH_LONG,
                        FancyToast.ERROR,R.drawable.wheel,false).show();

                return false;
            }
        });


   } catch (Exception e) {
       PBar.setVisibility(View.GONE);
        FancyToast.makeText(getContext(),e.getMessage(),
                FancyToast.LENGTH_LONG,FancyToast.WARNING,R.drawable.wheel,false).show();
    }

}

Answer 1

您可以创建如下方法来执行所需的操作

这是伪代码

private void setListener(boolean isPlaying){
        if(isPlaying){
            your_listview.setOnItemClickListener(null);
        }
        else{
            your_listview.setOnItemClickListener(new AdapterView.OnItemClickListener() {
                @Override
                public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                    //YOUR CODE
                }
            });
        }
    }

现在，只需在视频播放时调用 setListener(true) 即可 setListener(false)