Question

我发现imageView中未显示FirebaseRecyclerAdapter中的某些图像（存储在FireStorage中）。并且通过上下滚动显示的图像不在手机屏幕上时，它们也消失了。

然后当我重复滚动屏幕时，有时会再次显示它们。

@Override
protected void onStart() {
    super.onStart();

    final Query DBquery = FirebaseDatabase.getInstance().getReference().child("post").orderByChild("count").limitToFirst(10);

    final FirebaseRecyclerAdapter<Post, PostViewHolder> firebaseRecyclerAdapter = new FirebaseRecyclerAdapter<Post, PostViewHolder>(
            Post.class,
            R.layout.post_row,
            PostViewHolder.class,
            DBquery
    ) {
        @Override
        protected void populateViewHolder(PostViewHolder viewHolder, Post model, int position) {

            viewHolder.setTitle(model.getTitle());
            viewHolder.setDesc(model.getDesc());
            viewHolder.setImage(getApplicationContext(), model.getImage());
            viewHolder.setDate(model.getDate());
            viewHolder.init(position, model);
        }

        @Override
        public void onBindViewHolder(PostViewHolder viewHolder, int position) {
            super.onBindViewHolder(viewHolder, position);
        }
    };
    mPostList.setAdapter(firebaseRecyclerAdapter);
}

，然后检查图像是否为空。当它们不显示时，它们的值为空。

    public void setImage(Context ctx, String image){
        ImageView post_image = mView.findViewById(R.id.post_image);
        if (image == null){
            post_image.setVisibility(View.GONE);
        }else{
            Glide.with(ctx)
                    .load(image)
                    .into(post_image);
        }
    }

jhhjh

FirebaseRecyclerAdapter中的某些图像未显示在imageView上

0 个答案: