android如何響應listview上不一樣按鈕點擊事件

參考來源：http://www.tuicool.com/articles/bamqiq

大體思路：重寫適配器，讓主函數繼承接口接口 ListItemClickHelp，這個接口中包含onclick方法，在主函數中實現其onclick方法後，就能夠完成不一樣按鈕的點擊。參考博客中中定義了每一項的setonitemclicklistener，在跑源碼的時候發現這時候點擊每一項是沒有什麼效果的。因此換成了點擊兩個button來實現不一樣的點擊事件.

1，重寫適配器

package com.example.yx.pumkin;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;

import java.util.ArrayList;
import java.util.HashMap;

/**
 * Created by hp on 2016/2/20.
 */
public class ListItemClickAdapter   extends BaseAdapter {
    private Context contxet;
    private ArrayList<String> list;
    public ListItemClickHelp callback;
    private LayoutInflater mInflater;

    public ListItemClickAdapter(Context contxet, ArrayList<String>  list,
                                ListItemClickHelp callback) {
        this.contxet = contxet;
        this.list = list;
        this.callback = callback;
    }

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

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

    @Override
    public long getItemId(int position) {
        return 0;
    }

    @Override
    public View getView(int position, View convertView, final ViewGroup parent) {
        mInflater = (LayoutInflater) contxet
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        ViewHolder holder;
        if (convertView == null) {
            convertView = mInflater.inflate(
                    R.layout.list_adapter2, null);
            holder = new ViewHolder();
            holder.mAd_tv_show = (TextView) convertView
                    .findViewById(R.id.textView3);
            holder.mAd_btn_one = (ImageView) convertView
                    .findViewById(R.id.complete_view);
            holder.mAd_btn_two= (ImageView) convertView
                    .findViewById(R.id.read_view);

            convertView.setTag(holder);
        } else {
            holder = (ViewHolder) convertView.getTag();
        }

        holder.mAd_tv_show.setText(list.get(position));

        final View view = convertView;
        final int p = position;
        final int one = holder.mAd_btn_one.getId();
    holder.mAd_btn_one.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            callback.onClick(view, parent, p, one);
        }
    });
        final int two = holder.mAd_btn_two.getId();
        holder.mAd_btn_two.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                callback.onClick(view, parent, p, two);
            }
        });

    return convertView;
}

    public static class ViewHolder {
        TextView mAd_tv_show;
        ImageView mAd_btn_one;
        ImageView mAd_btn_two;
    }

}

2,接口 ListItemClickHelp

//這是個很神奇的接口，參數position 就是listview裏面對應每一項的position.  //至今不明白爲何？？

package com.example.yx.pumkin;

import android.view.View;

/**
 * Created by hp on 2016/2/20.
 */
public interface ListItemClickHelp {
    void onClick(View item, View widget, int position, int which);
}

主函數繼承這個接口後重寫onclick方法，就能相應不一樣按鈕的點擊事件了

3,適配器佈局

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:app="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/white"

    app:layout_behavior="@string/appbar_scrolling_view_behavior"
    tools:context=".MainActivity">


    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="New Text"
        android:textSize="20dp"
        android:id="@+id/textView3"
        android:layout_marginTop="67dp"
        android:layout_alignParentTop="true"
        android:layout_toRightOf="@+id/complete_view"
        android:layout_toEndOf="@+id/complete_view"
        android:layout_marginLeft="88dp"
        android:layout_marginStart="88dp" />

    <ImageView
        android:layout_width="40dp"
        android:layout_height="40dp"
        android:id="@+id/complete_view"
        android:background="@drawable/quan1"
        android:layout_alignTop="@+id/textView3"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true" />

    <ImageView
        android:layout_width="30dp"
        android:layout_height="30dp"
        android:id="@+id/read_view"
        android:background="@color/red"
        android:layout_alignTop="@+id/textView3"
        android:layout_alignParentRight="true"
        android:layout_alignParentEnd="true" />


</RelativeLayout>

4，主函數

//列表顯示
        listString=getTaskList();
        madapter = new ListItemClickAdapter(MainActivity.this,listString,(ListItemClickHelp) this);
        lv1.setAdapter(madapter);

//響應不一樣listItem上面不一樣按鈕的完成、查看
    @Override
    public void onClick(View item, View widget, int position, int which) {
        switch (which) {

            case R.id.complete_view:
                Toast.makeText(MainActivity.this,"完成了",Toast.LENGTH_LONG).show();
                break;
            case  R.id.read_view:
                listItem=getALLlist();
                HashMap one = listItem.get(position);
                Intent intent = new Intent(MainActivity.this, task_read.class);

                Bundle data = new Bundle();
                data.putInt("_id", Integer.parseInt(String.valueOf(one.get("_id"))));
                data.putString("task", String.valueOf(one.get("task")));
                data.putString("date", String.valueOf(one.get("date")));
                data.putString("task_type", String.valueOf(one.get("task_type")));

                intent.putExtras(data);

                startActivityForResult(intent, position);  //標識修改項的位置
                finish();

                break;
            default:
                break;
        }
    }