Question

我现在已经工作了大约一个小时，并没有取得任何成功。我想要做的是为我的两个ListView对象应用不同的操作，但两者只响应一个，即外部链接。我怎样让他们各自有自己的行动？我可以根据要求提供更多代码

这是我的代码：

package net.androidbootcamp.gamesandcoffee;

import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;



public class MainActivity extends Activity {
    ListView listView;
    int[] list_image_resource = {R.drawable.games, R.drawable.coffee};
    String[] list_titles;
    String[] list_descriptions;
    ListAdapter adapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        listView = (ListView) findViewById(R.id.list_view);
        list_descriptions = getResources().getStringArray(R.array.description);
        list_titles = getResources().getStringArray(R.array.titles);
        int i=0;
        adapter = new ListAdapter(getApplicationContext(),R.layout.row_layout);
        listView.setAdapter(adapter);
        for(String titles: list_titles)
        {
            GameDataProvider dataProvider = new GameDataProvider(list_image_resource[i],
                    titles, list_descriptions[i]);
            adapter.add(dataProvider);
            i++;
        }
        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
                startActivity(new Intent(MainActivity.this, games.class));
            }
        });
        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
                startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("https://en.wikipedia.org/wiki/Coffee")));
            }
        });
    }


}

这是我的主要XML：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity"
    android:background="#BBBBBB"
    >

    <ListView
        android:id="@+id/list_view"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"></ListView>

</RelativeLayout>

我的ListView适配器的XML：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent" android:layout_height="match_parent"
    android:background="#BBBBBB">
    <ImageView
        android:id="@+id/layout_image"
        android:layout_width="72dp"
        android:layout_height="72dp"
        android:layout_alignParentLeft="true"
        android:src="@drawable/coffee"
        />

    <TextView
        android:id="@+id/item_title"
        android:layout_width="match_parent"
        android:layout_height="72dp"
        android:layout_toRightOf="@+id/layout_image"
        android:text="This is the title"
        android:paddingTop="15dp"
        android:paddingLeft="10dp"
        android:textSize="20sp"
        />
    <TextView
        android:id="@+id/list_description"
        android:layout_width="match_parent"
        android:layout_height="72dp"
        android:layout_toRightOf="@id/layout_image"
        android:paddingTop="35dp"
        android:paddingLeft="40dp"
        android:text="This is the description"
        />
    <View
        android:layout_width="match_parent"
        android:layout_height="2dp"
        android:background="#000000"
        android:layout_below="@+id/item_title">

    </View>
</RelativeLayout>

提前致谢。

Answer 1

替换

listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
            startActivity(new Intent(MainActivity.this, games.class));
        }
    });
    listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
            startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("https://en.wikipedia.org/wiki/Coffee")));
        }
    });

与

listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View v, int position, long id) {

           if(position == 0){

            startActivity(new Intent(MainActivity.this, games.class));

           }else
           {
              startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("https://en.wikipedia.org/wiki/Coffee")));
           }

        }
    });

您正在设置两个侦听器，因此始终考虑您设置的最后一个侦听器。因此，您总是最终导航到外部链接。

干杯，
SREE

Answer 2

只使用一个

listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
                //Do If else statement here to cross check which item you clicked by using position 
            }
        });

Android - 自定义ListView的单独链接？

2 个答案: