带有新活动的 ListView OnItemClickListener答案

【问题标题】：ListView OnItemClickListener with a new activity带有新活动的 ListView OnItemClickListener
【发布时间】：2012-02-16 08:45:47
【问题描述】：

我有一个带有 OnItemClickListener 的 listView。当我点击一个项目时，我想在一个新的 Activity 中打开一个新视图，如下所示：

final ListView lv1 = (ListView) findViewById(R.id.ListView02);
    lv1.setAdapter(new SubmissionsListAdapter(this,searchResults));

    lv1.setOnItemClickListener(new OnItemClickListener() {
        public void onItemClick(AdapterView<?> parent, View v,
            int position, long id) {
            Intent myIntent = new Intent(v.getContext(), UserSubmissionLog.class);
            startActivityForResult(myIntent, 0);
            UserSubmissionLog userSubmissionLogs= new UserSubmissionLog(position);
            System.out.println("Position "+position);
            }
        }
    );

问题是我必须将点击的位置编号转移到新的活动中，并且不知道该怎么做。

谢谢。

【问题讨论】：

标签： android android-listview android-activity

【解决方案1】：

您应该将其添加到意图中：

Intent myIntent = new Intent(v.getContext(), UserSubmissionLog.class);
myIntent.putExtra("position", position);
startActivityForResult(myIntent, 0);

并在新的 Activity 中调用：

int prePosition = getIntent().getIntExtra("position", someDefaultIntValue);

【讨论】：

@PareshMayani - 他在哪里打电话给putExtra？

【解决方案2】：

试试这个，

public class yourClassName
{
     private static listIndex = 0;
     ......
     ......
     final ListView lv1 = (ListView) findViewById(R.id.ListView02);
    lv1.setAdapter(new SubmissionsListAdapter(this,searchResults));

    lv1.setOnItemClickListener(new OnItemClickListener() {
        public void onItemClick(AdapterView<?> parent, View v,
            int position, long id) {
            listIndex = position;
            Intent myIntent = new Intent(v.getContext(), UserSubmissionLog.class);
            startActivityForResult(myIntent, 0);
            UserSubmissionLog userSubmissionLogs= new UserSubmissionLog(position);
            System.out.println("Position "+position);
            }
        }
    );

   // make new static method to access listIdex from another class
   private static int getListIndex()
   {
        return position;
   }
}

【讨论】：

【解决方案3】：

Intent myIntent = new Intent(v.getContext(), UserSubmissionLog.class);
myIntent.putExtra("your_key_name_for_this_extra", position);
startActivityForResult(myIntent, 0);

对于接收活动，通过获取int值

int receivedValue = getIntent().getIntExtra("your_key_name_for_this_extra", default_value);

【讨论】：