通过自定义列表视图，从活性的去活动B [英] Go from activity A to activity B via custom listview

问题描述

我已经成功地填充一个Activity（我们称之为活性A 的），带有自定义列表视图，工作正常。

I've managed to populate an Activity (which we'll call Activity A) with a custom listview which works fine.

当从在活动A的项目列表中的项目的用户点击，我想这个项目的细节传递到活动B.

When the user clicks on an item from the list of items in Activity A, I want to pass details of that item into Activity B.

这是我的一个活动是这样的：

This is what my activity A looks like:

public class ChannelList extends Activity implements OnItemClickListener {

    public static final String[] names = new String[] { "BBC One",    "BBC Two" };
    public static final String[] descs = new String[] { "London, SD", "England, SD"};
    ListView listView;
    List<ChannelItem> channelItems;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_channel_list);

        channelItems = new ArrayList<ChannelItem>();
        for (int i = 0; i < names.length; i++) {
            ChannelItem item = new ChannelItem(names[i], descs[i]);
            channelItems.add(item);
        }

        listView = (ListView) findViewById(R.id.listView1);
        ChannelListViewAdapter adapter = new ChannelListViewAdapter(this, R.layout.item_channel_list, channelItems);
        listView.setAdapter(adapter);
        listView.setOnItemClickListener(this);      

    }


    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position,long id) {
//      Toast toast = Toast.makeText(getApplicationContext(), "Item " + (position + 1) + ": " + channelItems.get(position), Toast.LENGTH_SHORT);            
//      toast.setGravity(Gravity.BOTTOM|Gravity.CENTER_HORIZONTAL, 0, 0);
//      toast.show();
        Intent intent = new Intent(this, ScheduleList.class);
        startActivity(intent);
    }


}

基于Android API文档我间pretation

，我应该数据传递到使用的活动B调用Intent.putExtra（）;

Based on my interpretation of the Android API documentation, I'm supposed to pass data into the Activity B call using Intent.putExtra();

的问题是，如何通过列表项的名称和描述元素的用户点击？

例如，当我打电话的活动B，它应该能够如果BBC一个是从列表视图点击下载电视节目表数据为BBC一。如何使活动B知道哪些列表项的点击触发活动B？

推荐答案

如何

intent.putExtra("name", names[position]);

在活动 A的 onItemClick 方法以及

String name = getIntent().getStringExtra("name");

在活动 B的的onCreate 方法？

这篇关于通过自定义列表视图，从活性的去活动B的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！