使用ContentResolver读取通话记录与短信记录

所需要知道的内容包括：

（一）短信Uri：

content://sms 所有短信

content://sms/outbox 发送箱中的短信

content://sms/inbox 收件箱中短信

【数据库中主要字段：】

短信手机号码 ： address

短信标题： subject

短信内容：body

短信发送时间戳：date

短信类型：type 【0：待发信息； 1：接收到信息； 2：发出】

_id

（二）、通话记录Uri：

content://call_log/calls

所有通话记录 “_id”, “number”, “date”, “type”

（三） 过去Resolver对象

getContentResolver()

调用Resolver的方法：

insert()/delete/update/query 对应参数：2,3,4,5

insert()

public final @Nullable Uri insert(@NonNull Uri url, @Nullable ContentValues values)

delete()

int update(@NonNull Uri uri, @Nullable ContentValues values,

@Nullable String where, @Nullable String[] selectionArgs)

update()

int update(@NonNull Uri uri, @Nullable ContentValues values,

@Nullable String where, @Nullable String[] selectionArgs)

query()

public final @Nullable Cursor query(@NonNull Uri uri, @Nullable String[] projection,

@Nullable String selection, @Nullable String[] selectionArgs,

@Nullable String sortOrder)

参数说明：

Uri uri ： uri地址

String[] projection：查询的列的列名

String selection：带占位符（？）的查询条件

String[] selectionArgs：替换占位符？的字符串数组

String sortOrder ：排序方式

比如 按 _id 降序 >> _id desc

order by 关键字可以不用写

实例：

实现如下功能，读取系统通话记录与短信记录。

在界面上输出最后一次的通话记录 与短信记录

实现代码如下：

package com.oldeleven.day18_contentresolversmslogcalllogfirst;

import android.content.ContentResolver;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {
private Context mContext = this;
private TextView textView_main_sms;
private TextView textView_main_call;
private ContentResolver resolver = null;
private static final String URI_SMS_LOG = "content://sms";
private static final String URI_CALL_LOG = "content://call_log/calls";

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

initView();
readSmsLog();

readCallLog();
}

private void readCallLog() {
Cursor cursor_call = resolver.query(Uri.parse(URI_CALL_LOG), new String[]{"_id", "number", "date", "type"}, null, null, "_id desc limit 0,1");
if (cursor_call != null){
cursor_call.moveToFirst();
if (cursor_call.getCount() > 0){
String id = cursor_call.getString(cursor_call.getColumnIndex("_id"));
String number = cursor_call.getString(cursor_call.getColumnIndex("number"));
String date = cursor_call.getString(cursor_call.getColumnIndex("date"));
String type = cursor_call.getString(cursor_call.getColumnIndex("type"));
textView_main_call.append(id + ":" + number + ":" + date + ":" + type );
}
cursor_call.close();
}

}

private void readSmsLog() {
Cursor cursor_sms = resolver.query(Uri.parse(URI_SMS_LOG), new String[]{"_id", "address", "body", "date", "type"}, null, null, "_id desc limit 1");
if (cursor_sms != null){
cursor_sms.moveToFirst();
if (cursor_sms.getCount() > 0){
String id = cursor_sms.getString(cursor_sms.getColumnIndex("_id"));
String address = cursor_sms.getString(cursor_sms.getColumnIndex("address"));
String body = cursor_sms.getString(cursor_sms.getColumnIndex("body"));
String date = cursor_sms.getString(cursor_sms.getColumnIndex("date"));
String type = cursor_sms.getString(cursor_sms.getColumnIndex("type"));
String sms_type = "0".equals(type)?"待发信息":("1".equals(type)?"接收到的信息":"已发送的信息");

textView_main_sms.append(id + ":" + address + ":" + body + ":" + date + ":" + sms_type);

}
cursor_sms.close();
}

}

private void initView() {
textView_main_sms = (TextView) findViewById(R.id.textView_main_sms);
textView_main_call = (TextView) findViewById(R.id.textView_main_call);
resolver = getContentResolver();
}

}

布局页面如下：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width<
4000
/span>="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.oldeleven.day18_contentresolversmslogcalllogfirst.MainActivity">

<TextView
android:id="@+id/textView_main_sms"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="最后一条短信："/>

<TextView
android:id="@+id/textView_main_call"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="最后一条通话记录："
android:layout_below="@id/textView_main_sms"/>
</RelativeLayout>

最后，需要在清单文件中加上读取Sms，Call_Log的权限

<uses-permission android:name="android.permission.READ_SMS"/>
<uses-permission android:name="android.permission.READ_CALL_LOG"/>

二、以上代码再

加上动态授权，对于23以上的版本，当访问系统数据库时需要添加动态访问权限，否则程序会报错。

优化如下：

protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

initView();
grandReadSmsLog();

grandReadCallLog();
}

private void grandReadCallLog() {
int hasReadSmsPermisson = ContextCompat.checkSelfPermission(mContext, Manifest.permission.READ_SMS);
if (hasReadSmsPermisson != PackageManager.PERMISSION_GRANTED){
ActivityCompat.requestPermissions(this,new String[]{Manifest.permission.READ_SMS},READ_SMS_CODE);
}else {
readSmsLog();
}

}

private void grandReadSmsLog() {
int hasReadCallLogPermission = ContextCompat.checkSelfPermission(mContext,Manifest.permission.READ_CALL_LOG);
if (hasReadCallLogPermission != PackageManager.PERMISSION_GRANTED){
ActivityCompat.requestPermissions(this,new String[]{Manifest.permission.READ_CALL_LOG},READ_CALL_CODE);
}else {
readCallLog();
}

}

@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
switch (requestCode){
case READ_SMS_CODE:
if (grantResults[0] == PackageManager.PERMISSION_GRANTED){
readSmsLog();
}else{
Toast.makeText(mContext,"读取短信记录授权失败",Toast.LENGTH_LONG).show();
}
break;
case READ_CALL_CODE:
if (grantResults[0] == PackageManager.PERMISSION_GRANTED){
readCallLog();
}else {
Toast.makeText(mContext,"读取通话记录授权失败",Toast.LENGTH_LONG).show();
}

break;
}
}

这样在23版本以上的手机上，也可以读取系统通话记录与短信记录了