Question

我的ListView每行都有多个项目。如何在custon ArrayAdapter类的getView（）中为一个Item设置一个OnCLickListener，而不是ListView的整行？

 @NonNull
    @Override
    public View getView(final int position, @Nullable final View convertView, @NonNull final ViewGroup parent) {
        currentLayout = getItem(position);
        myViewHolder= null;
    view = convertView;

    if (convertView == null) {
        view = LayoutInflater.from(getContext()).inflate(R.layout.rowlayout, parent, false);
        myViewHolder= new ViewHolder(view);
        view.setTag(myViewHolder);
    }

    myViewHolder= (ViewHolder) view.getTag();


    myViewHolder.content.setText(currentLayout.getContent());
    myViewHolder.number.setText("1");




    return view;
}

感谢您的回答。

Answer 1

首先澄清一下，你膨胀的view是行布局。要在子项上设置on click侦听器，只需按id查找该项，然后设置侦听器：

//It can be any type of view that supports on click listener
//Using TextView as an example
//Don't forget to assign an id to the child in xml
TextView childView = (TextView) view.findViewById(R.id.enter_child_id);

childView.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    //Do something
                }
            });

要为不同的行设置不同的侦听器，最好在onBindViewHolder而不是getView中设置侦听器。 getView仅用于扩充视图，因此会使所有行上的所有侦听器都无法区分。在这种情况下，您可以直接从viewholder

中提取视图或子视图

@Override
public void onBindViewHolder(final ViewHolder holder, final int position) {
TextView childView = holder.childView;
childView.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View view) {
                        //Do something
                    }
                });
}

Answer 2

 @NonNull
@Override
public View getView(final int position, @Nullable final View convertView, @NonNull final ViewGroup parent) {
    currentLayout = getItem(position);
    myViewHolder= null;
view = convertView;

if (convertView == null) {
    view = LayoutInflater.from(getContext()).inflate(R.layout.rowlayout, parent, false);
    myViewHolder= new ViewHolder(view);
    view.setTag(myViewHolder);
}

myViewHolder= (ViewHolder) view.getTag();


myViewHolder.content.setText(currentLayout.getContent());
myViewHolder.number.setText("1");

yourview.setonclickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            do your stuff here
        }
    });
return view;
}

ListView行中的一个项的OnCLickListener

2 个答案: