大家好有一个应用程序，节省了音频的SD卡。我创建了一个列表视图以检索filesnames从SD卡。我试图设置一个侦听器，这样当文件名被点击，我可以启动另一个意图播放该文件。当我尝试设置监听器，并通过在新OnItemClickListener（）月食是红色的强调它。我明白我必须实现onItemclick（），这是我认为的意图应该去。任何想法？

感谢

code：

 包com.tecmark;

进口的java.io.File;
进口的java.util.ArrayList;

进口android.app.Activity;
进口android.os.Bundle;
进口android.os.Environment;
进口android.util.Log;
进口android.widget.AdapterView;
进口android.widget.ArrayAdapter;
进口android.widget.ListView;
进口android.widget.AdapterView.OnItemClickListener;
进口android.widget.AdapterView.OnItemSelectedListener;

公共类SdGetList延伸活动{
    私人的ListView LV1;
    私有String [] lv_arr;
    私人的ArrayList＆LT;字符串＆GT; ARR;

    @覆盖
    公共无效的onCreate（包冰柱）{
        super.onCreate（冰柱）;
        的setContentView（R.layout.listlayout）;
        ARR =新的ArrayList＆LT;字符串＆GT;（）;

        文件sdCardRoot = Environment.getExternalStorageDirectory（）;
        Log.i（根在SD =，+ sdCardRoot.getPath（））;

        对于（文件F：sdCardRoot.listFiles（））{
            如果（f.isFile（））{
                字符串名称= f.getName（）;
                arr.add（名称）;
                Log.i（改编为空******？，+ arr.isEmpty（））;
            }
            其他 {
                Log.i（文件，没有文件）;
            }
            Log.i（改编******，+ arr.size（））;
        }
        lv_arr =新的String [arr.size（）];

        的for（int i = 0; I＆LT; arr.size（）;我++）{
            lv_arr [I] = arr.get（ⅰ）;
        }

        LV1 =（ListView控件）findViewById（R.id.ListView01）;
        //通过使用列表视图setAdpater的方法，我们的加载字符串数组列表。
        lv1.setAdapter（新ArrayAdapter＆LT;字符串＆GT;（这一点，android.R.layout.simple_list_item_1，lv_arr））;
        lv1.setOnItemClickListener（新OnItemClickListener（）{
            公共无效onItemClick（适配器视图＆LT;＆GT;母公司视图中查看，INT位置，长的id）{
            }
        }）;
    }
}
 

解决方案

  list.setOnItemClickListener（新OnItemClickListener（）{
    公共无效onItemClick（适配器视图＆LT;＆GT;为arg0，查看ARG1，INT ARG2，长ARG3）{
        意图I =新的意图（ClassName.this，CourtDetailActivity.class）;
        startActivity（ⅰ）;
    }）;
}
 

这是在code为正常工作，我认为你不进口一击包装

 进口android.widget.AdapterView.OnItemClickListener;
 

把这行导入的应用程序的部分 我希望这是帮助;

Hi all got an app that saves audio on sd card. i've created a listview which retrieves the filesnames from the sdcard. i'm trying to set a listener so when the file name is clicked i can launch another intent that plays that file. when i try to set the listener and pass in a new OnItemClickListener() eclipse is red underlining it. i understand that i have to implement the onItemclick(), this is where i think the intent ought to go. any ideas?

thanks

Code:

package com.tecmark;

import java.io.File;
import java.util.ArrayList;

import android.app.Activity;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.AdapterView.OnItemSelectedListener;

public class SdGetList extends Activity {
    private ListView lv1;
    private String[] lv_arr;
    private ArrayList<String> arr;

    @Override
    public void onCreate(Bundle icicle) {
        super.onCreate(icicle);
        setContentView(R.layout.listlayout);
        arr = new ArrayList<String>();

        File sdCardRoot = Environment.getExternalStorageDirectory();
        Log.i("root on sd =", ""+ sdCardRoot.getPath());

        for (File f : sdCardRoot.listFiles()) {
            if (f.isFile()){
                String name = f.getName();
                arr.add(name);
                Log.i("arr is empty?******", ""+arr.isEmpty());
            }
            else {
                Log.i("file", " no file");
            }
            Log.i("arr******", ""+arr.size());
        }
        lv_arr = new String[arr.size()];

        for(int i=0 ; i<arr.size();i++) {
            lv_arr[i] = arr.get(i);
        }

        lv1=(ListView)findViewById(R.id.ListView01);
        // By using setAdpater method in listview we an add string array in list.
        lv1.setAdapter(new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1 , lv_arr));
        lv1.setOnItemClickListener(new OnItemClickListener() {
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
            }
        } );
    }
}

list.setOnItemClickListener( new OnItemClickListener() {
    public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
        Intent i = new Intent(ClassName.this,CourtDetailActivity.class);
        startActivity(i);
    });
}

this is the code is properly working i think you do not import blow Package

import android.widget.AdapterView.OnItemClickListener;

put this line to import section of the application I hope this is help;