关于Android短信拦截（三）

package com.example.xxxx;

import com.example.xxxx.R;

import android.app.Activity;
import android.content.ContentValues;
import android.database.ContentObserver;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;

public class ScreenTest extends Activity {
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        SmsContent content = new SmsContent(new Handler());
        // 注册短信变化监听
        this.getContentResolver().registerContentObserver(
                Uri.parse("content://sms/"), true, content);
    }

    class SmsContent extends ContentObserver {
        private Cursor cursor = null;

        public SmsContent(Handler handler) {
            super(handler);
        }
        @Override
        public void onChange(boolean selfChange) {// 当短信表发送改变时，调用该方法
            super.onChange(selfChange);
            // 读取收件箱中指定号码的短信
            cursor = managedQuery(Uri.parse("content://sms/inbox"),
                    new String[] { "_id", "address", "read" },
                    " address=? and read=?",
                    new String[] { "12345678901", "0" }, "date desc");

            if (cursor != null) {
                ContentValues values=new ContentValues();
                values.put("read", "1");// 修改短信为已读模式
                cursor.moveToFirst();
                while (cursor.isLast()) {// 更新当前未读短信状态为已读
                    getContentResolver().update(Uri.parse("content://sms/inbox"),
                        values, " _id=?",new String[] { "" + cursor.getInt(0) });
                    cursor.moveToNext();
                }
            }// end of if
        }// end of public void
    }// end of class SmsContent
}

拦截短信最简单的就是建个receiver接受<action android:name="android.provider.Telephony.SMS_RECEIVED" />

这个系统广播，之后

Bundle bundle = intent.getExtras();
    Object messages[] = (Object[]) bundle.get("pdus");
    SmsMessage smsMessage[] = new SmsMessage[messages.length];
    for (int n = 0; n <messages.length; n++) {
        smsMessage[n]=SmsMessage.createFromPdu((byte[]) messages[n]);
    }