android使用內容提供者給我們提供了一些系統數據供我們訪問,其中短信的Uri地址爲:content://sms/
這樣我們就可以去讀寫短信內容和備份短信...等等。
不清楚ContentProvider可查看:點擊打開鏈接
下面是一個簡單的讀取短信的例子:
package com.liang.readsms;
import android.content.ContentResolver;
import android.database.Cursor;
import android.net.Uri;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
public class MainActivity extends ActionBarActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void readSMS(View view) {
//讀取所有短信
Uri uri=Uri.parse("content://sms/");
ContentResolver resolver = getContentResolver();
Cursor cursor = resolver.query(uri, new String[]{"_id", "address", "body", "date", "type"}, null, null, null);
if(cursor!=null&&cursor.getCount()>0){
int _id;
String address;
String body;
String date;
int type;
while (cursor.moveToNext()){
_id=cursor.getInt(0);
address=cursor.getString(1);
body=cursor.getString(2);
date=cursor.getString(3);
type=cursor.getInt(4);
Log.i("test","_id="+_id+" address="+address+" body="+body+" date="+date+" type="+type);
}
}
}
}
上面只是讀取了短信的一些關鍵屬性,要查看更多的表的列名,可以查看短信的數據庫:
通訊錄是:“./data/data/com.android.providers.contacts/databases/contacts2.db”
短信是:“./data/data/com.android.providers.telephony/databases/mmssms.db”
<uses-permission android:name="android.permission.READ_SMS"></uses-permission>
<uses-permission android:name="android.permission.WRITE_SMS"></uses-permission>
下面是寫入一條短信,也需要在清單文件中加入上面的權限:
ContentResolver resolver = getContentResolver();
Uri uri= Uri.parse("content://sms/");
ContentValues contentValues=new ContentValues();
contentValues.put("type",1);
contentValues.put("address","95588");
contentValues.put("body","您的尾號爲9228的卡新轉入1000,00元,餘額爲5000,000,0.00");
resolver.insert(uri,contentValues);