android-Android如何獲取listview裡面的選取的數據

Android如何獲取listview裡面的選取的數據

需要在lv1.setOnItemLongClickListener方法中加入一個長按獲取電話號碼，聯系人的代碼，我寫的代碼總感覺有錯誤，但是不知道錯在哪，我嘗試用system輸出我獲取的數值，數值是對的，但是傳不到打電話和發短信的地方

這是效果圖

package com.example.lianxi;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.zip.Inflater;

import android.R.string;
import android.app.Activity;
import android.app.ActionBar;
import android.app.Fragment;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.ContextMenu;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.view.ContextMenu.ContextMenuInfo;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemLongClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.Toast;
import android.os.Build;

public class M1 extends Activity {
private ListView lv1;
private int[] pic = new int[] { R.drawable.img01, R.drawable.img02,
R.drawable.img03, R.drawable.img04, };
private String[] xm = new String[] { "張三", "李四", "王五", "趙六" };
private String[] dh = new String[] { "626746", "624882", "620874",
"130533", };
String s = "";

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.m1);
    lv1 = (ListView) findViewById(R.id.lv1);
    final List<Map<String, Object>> list = new ArrayList<Map<String, Object>>();
    for (int i = 0; i < pic.length; i++) {
        Map<String, Object> m1 = new HashMap<String, Object>();
        m1.put("pic", pic[i]);
        m1.put("xm", xm[i]);
        m1.put("dh", dh[i]);
        list.add(m1);
    }
    SimpleAdapter sa = new SimpleAdapter(M1.this, list, R.layout.moban,
            new String[] { "pic", "xm", "dh" }, new int[] { R.id.iv1,
                    R.id.tv1, R.id.tv2 });
    lv1.setAdapter(sa);

    lv1.setOnItemLongClickListener(new OnItemLongClickListener() {

        @Override
        public boolean onItemLongClick(AdapterView<?> arg0, View arg1,
                int arg2, long arg3) {
            HashMap<String, Object> map = (HashMap<String, Object>) lv1
                    .getItemAtPosition(arg2);
            String xm = String.valueOf(map.get("xm").toString());
            String dh = String.valueOf(map.get("dh").toString());

            System.out.println(xm);
            System.out.println(dh);
            return false;
        }
    });
    registerForContextMenu(lv1);
}

@Override
public void onCreateContextMenu(ContextMenu menu, View v,
        ContextMenuInfo menuInfo) {
    // TODO Auto-generated method stub
    MenuInflater m1 = new MenuInflater(M1.this);
    m1.inflate(R.menu.m1, menu);
    menu.setHeaderIcon(R.drawable.i);
    menu.setHeaderTitle("請選擇");
    super.onCreateContextMenu(menu, v, menuInfo);
}

@Override
public boolean onContextItemSelected(MenuItem item) {
    // TODO Auto-generated method stub
    switch (item.getItemId()) {
    case R.id.dh:
        Intent intent = new Intent();
        intent.setAction(intent.ACTION_CALL);
        intent.setData(Uri.parse("tel:" + dh));
        startActivity(intent);
        break;
    case R.id.dx:
        Intent intent1 = new Intent();
        intent1.setAction(intent1.ACTION_SENDTO);
        intent1.setData(Uri.parse("smsto:" + dh));
        intent1.putExtra("sms_body", "");
        startActivity(intent1);
        break;
    }
    return super.onContextItemSelected(item);
}

}

最佳回答：

因為你在setData時候用的dh引用的是一個String數組啊，不是你要的選取的電話號碼，你應該在長按事件裡面把那個dh改一下名然後定義成全局變量，然後再在setData裡面使用這個電話號就行了~