片段中ListView上的按钮单击侦听器

Question

因此，我试图通过onClickListener向Button添加一些功能，但似乎无法使其正常工作。我的按钮在列表项的XML中声明，而我的列表在Fragment中实现。我做了一些研究以找到答案，我尝试过的每个解决方案都失败了，或者太复杂了。我有点开始对我的无知深感抱歉。

因此，我的问题是在这些情况下如何为我的Button获取onClickListener。是否有某些东西会使监听器的效果在列表中不起作用？

Answer 1

您好）首先，您必须创建您的自定义适配器。例如：

public class EatListAdapter extends BaseAdapter {

    private ArrayList<EatTime> eatTimes;
    private Activity activity;

    public EatListAdapter(Activity activity, ArrayList<EatTime> items) {
        this.eatTimes = items;
        this.activity = activity;
    }

    @Override
    public int getCount() {
        return eatTimes.size();
    }

    @Override
    public Object getItem(int position) {
        return null;
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    @Override
    public View getView(final int position, View convertView, ViewGroup parent) {

        View v;
        LayoutInflater inflater = (LayoutInflater) activity.getApplicationContext()
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);

        v = inflater.inflate(R.layout.list_item, null);

        Button delete = (Button) v.findViewById(R.id.button_delete);
        delete.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

            //your ON CLICK CODE

        });

        return v;
    }
}

比设置适配器

ListView eatingList = (ListView) findViewById(R.id.eatingList);
adapter = new EatListAdapter(this, eatArrayList);
eatingList.setAdapter(adapter);

Answer 2

在您的adpater类中，按ID查找按钮，然后在同一类中编写button.setOnClickListner。它会工作

如果要在框架类中也要单击，则必须在适配器类中编写接口并通过该接口扩展片段，然后使用接口方法进行单击

如果需要单击具有索引/位置的片段类，请使用belo示例代码

//Inside adpater class
public interface OnEditLocationListener {
        public void onDeleteClick(int position);

    }

    private OnEditLocationListener listener;

    public void setOnEditLocationListener(OnEditLocationListener listener) {
        this.listener = listener;
    }

    //Inside getView method
    holder.imv_delete.setTag(position);
        holder.imv_delete.setOnClickListener(null);
        holder.imv_delete.setOnClickListener(new OnClickListener() {

            @Override
            public void onDeleteClick(View view) {
                if (listener != null) {
                    listener.onDeleteClick(position);
                }
            }
        });



//In Activity
        yourclass extends yourchoice implements adapter.OnEditLocationListener

        //inside onCreate/onCreateview

        adapter.setOnClickListener(getActivity/this);

        //Button click
    @Override
    public void onDeleteClick(int pos) {
        Toast.makeText(getActivity(), "clicked @ " + pos, Toast.LENGTH_SHORT).show();


    }