图像 + 视频混合在 RecyclerView 中

Question

我正在尝试检查 RecyclerView 中的图像和视频可用性，但挑战是 VideoView 是所有项目列表中唯一可见的，ImageView 是根本不可见，我想要的是检查图像是否存在于 ImageView Videoview GOES 中，以及视频何时在 VideoView 中可用ImageView去.

我正在开发一个同时发布视频和图片并在同一位置检索它们的应用程序 RecyclerView，所以请帮助我如何实现这一点

下面是我的代码，但它不起作用：

boolean hasDrawable = (viewHolder.imagePost.getDrawable()!= null);

String hasVideo_string =(String)viewHolder.videoLayout.getTag();
boolean hasVideo = Boolean.parseBoolean(hasVideo_string);

if(hasDrawable){
   viewHolder.setTitle(model.getEventTitle());
   viewHolder.setDesc(model.getEventDescription());
   viewHolder.setImage(c, model.getEventImage());
   viewHolder.videoLayout.setVisibility(View.INVISIBLE);
   }

else if(hasVideo) {
  viewHolder.setTitle(model.getEventTitle());
  viewHolder.setDesc(model.getEventDescription());
  viewHolder.setVideo(c, model.getEventVideo());
  viewHolder.imagePost.setVisibility(View.GONE);
  }

这就是我在 ViewHolder Class

中设置图像和视频的方式

public void setImage(final Context c,final String imageUrl){
    //
    Picasso.with(c).load(imageUrl).error(R.mipmap.add_btn).fit().centerInside().placeholder(R.mipmap.add_btn)
                    .networkPolicy(NetworkPolicy.OFFLINE).into(imagePost, new Callback() {
                @Override
                public void onSuccess() {

                }

                @Override
                public void onError() {

                    //Reloading an image again ...
                    Picasso.with(c).load(imageUrl).error(R.mipmap.add_btn).placeholder(R.mipmap.add_btn)
                            .into(imagePost);
                }
            });

        }

和视频（我使用了一个名为 FullscreenVideoLayout 的库，它类似于 VideoView 但定制程度更高）

public void setVideo(final Context c, final String videoUrl){

   // videoLayout.setActivity(this);
   // videoLayout.setActivity(get);

    Uri videoUri = Uri.parse(videoUrl);
    try {
        videoLayout.setVideoURI(videoUri);
        videoLayout.setTag(videoUrl);

    } catch (IOException e) {
        e.printStackTrace();
    }
}

这是完整的ViewHolderclass

public static class BlogViewHolder extends RecyclerView.ViewHolder{


        View mView;
        private ImageView imagePost;
        private FullscreenVideoLayout videoLayout;
          private VideoView videoView;

        public BlogViewHolder(View itemView) {
            super(itemView);
            mView=itemView;
          imagePost =(ImageView)mView.findViewById(R.id.post_image);
           videoLayout = (FullscreenVideoLayout) mView.findViewById(R.id.post_video);

        }
        public void setTitle(String title){

            TextView post_title = (TextView)mView.findViewById(R.id.post_title);
            post_title.setText(title);

        }

        public void setDesc(String desc){

            TextView post_desc = (TextView)mView.findViewById(R.id.post_desc);
            post_desc.setText(desc);
        }


        public void setImage(final Context c,final String imageUrl){

       //

            Picasso.with(c).load(imageUrl).error(R.mipmap.add_btn).fit().centerInside().placeholder(R.mipmap.add_btn)
                    .networkPolicy(NetworkPolicy.OFFLINE).into(imagePost, new Callback() {
                @Override
                public void onSuccess() {

                }

                @Override
                public void onError() {

                    //Reloading an image again ...
                    Picasso.with(c).load(imageUrl).error(R.mipmap.add_btn).placeholder(R.mipmap.add_btn)
                            .into(imagePost);
                }
            });

        }

        public void setVideo(final Context c, final String videoUrl){


           // videoLayout.setActivity(this);
           // videoLayout.setActivity(get);

            Uri videoUri = Uri.parse(videoUrl);
            try {
                videoLayout.setVideoURI(videoUri);
                videoLayout.setTag(videoUrl);

            } catch (IOException e) {
                e.printStackTrace();
            }


        }

            }

Answer 1

我看到您正在使用 Firebase，因此由于您获得了视频和图像 getEventImage() 和 getEventVideo() 的 Urls，只需检查 Urls 如果它们为空并移除 ImageView 和 VideoView.

的可见性

下面是示例代码，试试这个：

 public void setImage(final Context c,final String imageUrl){

            try {
                if (imageUrl!=null) {
                    //

                    Picasso.with(c).load(imageUrl).error(R.mipmap.add_btn).fit().centerInside().placeholder(R.mipmap.add_btn)
                            .networkPolicy(NetworkPolicy.OFFLINE).into(imagePost, new Callback() {
                        @Override
                        public void onSuccess() {

                        }

                        @Override
                        public void onError() {

                            //Reloading an image again ...
                            Picasso.with(c).load(imageUrl).error(R.mipmap.add_btn).placeholder(R.mipmap.add_btn)
                                    .into(imagePost);
                        }
                    });





                } else {

                    imagePost.setVisibility(View.GONE);
                }
            }
            catch (Exception e){

            }

        }

        public void setVideo(final Context c, final String videoUrl){
            try {
                if (videoUrl!=null) {
                    try {
                        Uri videoUri = Uri.parse(videoUrl);
                        try {
                            videoLayout.setVideoURI(videoUri);
                            videoLayout.setTag(videoUrl);
                            String hasVideo_string = (String) videoLayout.getTag();
                            boolean hasVideo = Boolean.parseBoolean(hasVideo_string);


                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                    } catch (Exception e) {
                        System.out.println("Error :" + e);
                    }

                } else {
                    videoLayout.setVisibility(View.GONE);
                }
            }
            catch (Exception e){

            }


        }

希望对你有用。

图像 + 视频混合在 RecyclerView 中

Images + Videos mixed in a RecyclerView

java

android

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android-videoview

android-recyclerview