最初隐藏的视图布局，然后通过onclick使视图可见，反之亦然Android

问题描述

我有一个约束布局可见性，它最初设置为GONE expandableLayout.setVisibility(View.GONE);。我想使该视图在发出“ setonClickListener”时可见。然后，当用户再次单击布局时，视图将再次设置为“消失”。

public class ViewHolder extends RecyclerView.ViewHolder {
        TextView mThicc;
        ListView listView;
        ConstraintLayout expandableLayout;

        public ViewHolder(@NonNull View itemView) {
            super(itemView);
            mThicc = itemView.findViewById(R.id.thicc);
            listView = itemView.findViewById(R.id.stocklist);
            expandableLayout = itemView.findViewById(R.id.expandableLayout);

            expandableLayout.setVisibility(View.GONE);
            
            itemView.setonClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    expandableLayout.setVisibility(View.GONE);
                }
            });

        }
    }

问题是，当我单击布局时，它不会保持隐藏状态。

解决方法

尝试这个：

public class ViewHolder extends RecyclerView.ViewHolder {     
        TextView mThicc;
        ListView listView;
        ConstraintLayout expandableLayout;

        public ViewHolder(@NonNull View itemView) {
            super(itemView);
            mThicc = itemView.findViewById(R.id.thicc);
            listView = itemView.findViewById(R.id.stocklist);
            expandableLayout = itemView.findViewById(R.id.expandableLayout);

            expandableLayout.setVisibility(View.GONE);
            
            itemView.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    int visibility =  expandableLayout.getVisibility() == View.GONE ? View.VISIBLE : View.GONE;
                    expandableLayout.setVisibility(visibility);
                }
            });

        }
    }

但是我不推荐这种方法，因为如果回收ViewHolder，它将失去其visibility状态。您需要在列表项上保持可见性。

,

尝试进行调节，并检查单击按钮后视图是否可见或消失

if(expandableLayout.getVisibility==View.GONE){
    expandableLayout.setVisibility(View.VISIBLE);
}
 else {
    expandableLayout.setVisibility(View.GONE); 
}