16读取通话记录-白红宇

16读取通话记录

阅读量：5364 次

发布时间：2019-06-15

本文共 2464 字，大约阅读时间需要 8 分钟。

所需权限
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layout 布局文件
mainActivity
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list填充文件

逻辑代码 mainActivity.java

package com.qf.day16_contentresolver_call_demo2;import java.text.SimpleDateFormat;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;import java.util.logging.SimpleFormatter;import android.net.Uri;import android.os.Bundle;import android.provider.CallLog;import android.app.Activity;import android.content.ContentResolver;import android.database.Cursor;import android.view.Menu;import android.widget.ListView;import android.widget.SimpleAdapter;import android.widget.TextView;/** *  * 通话记录的数据 *  * 1,获取ContentResolver对象 2,ContentResolver对象 通过Uri地址 获取数据 3,展示数据 *  */public class MainActivity extends Activity {
           private ListView lv;    private TextView tv;    private ContentResolver contentResolver;    //content://call_log/calls    private Uri callUri = CallLog.Calls.CONTENT_URI;    private String [] coumns = new String[]{CallLog.Calls._ID,CallLog.Calls.NUMBER,CallLog.Calls.DATE};    //存数据源的集合    private List
        
         > list = new ArrayList
         
          
           >();    SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        lv = (ListView) findViewById(R.id.lv);        tv = (TextView) findViewById(R.id.tv);        contentResolver = getContentResolver();        //解析器 通过Uri地址获取指定的字段项        Cursor cursor = contentResolver.query(callUri,                 coumns,                 null,                 null,                null);        while(cursor.moveToNext()){            Map
           
             map = new HashMap
            
             (); long id = cursor.getLong(cursor.getColumnIndex(CallLog.Calls._ID)); String number = cursor.getString(cursor.getColumnIndex(CallLog.Calls.NUMBER)); long date = cursor.getLong(cursor.getColumnIndex(CallLog.Calls.DATE)); map.put("id", id); map.put("number", number); map.put("date", format.format(date)); list.add(map); } SimpleAdapter adapter = new SimpleAdapter(MainActivity.this, list, R.layout.item, new String[]{ "number","date"}, new int[]{R.id.tv_number,R.id.tv_date}); lv.setAdapter(adapter); //如果没有数据 展示VIew lv.setEmptyView(tv); }}