浅析Android手机卫士sim卡绑定

读取sim卡的序列号，保存起来，一旦sim发生变更了，认为是小偷的sim卡，发出警告

读取sim卡序列号

获取telephonymanager对象，通过getsystemservice(telephony_service)

调用telephonymanager对象的getsimserialnumber()方法，得到string类型的序列号

把序列号保存在sharedpreences里面

需要加权限 android.permission.read_phone_state

检测sim卡是否变更

使用广播接收者，监听手机的开机广播

新建一个包 xxx.receiver，新建一个类bootcompletereceiver.java

清单文件注册一下，添加<receiver>节点，设置名称android:name=”xxx”

添加意图过滤器<intent-filter>节点

添加动作<action/>节点，设置监听动作名称android.intent.action.boot_completed

在bootcompletereceiver类里面的onreceive()方法里，接收到广播，读取当前的sim卡序列号，比较之前保存的sim卡序列号，如果不一样就发送短信给安全号码

监听开机启动需要权限 android:perission.receive_boot_completed

bootcompletereceiver.java

package com.qingguow.mobilesafe.receiver;
import android.content.broadcastreceiver;
import android.content.context;
import android.content.intent;
import android.content.sharedpreferences;
import android.telephony.telephonymanager;
import android.widget.toast;
public class bootcompletereceiver extends broadcastreceiver {
private telephonymanager tm;
private sharedpreferences sp;
@override
public void onreceive(context cotext, intent arg1) {
sp=cotext.getsharedpreferences("config", context.mode_private);
//读取当前的sim卡序列号
tm=(telephonymanager) cotext.getsystemservice(context.telephony_service);
string relsim=tm.getsimserialnumber();
//读取之前保存的
string savesim=sp.getstring("sim", "");
//判断后发短信
if(savesim.equals(relsim)){
}else{
//发送报警短息给安全号码
system.out.println("sim卡变更了");
toast.maketext(cotext, "sim卡变更了", 1).show();
}
}
} 

secguide2activity.java

package com.qingguow.mobilesafe;
import android.content.intent;
import android.content.sharedpreferences;
import android.content.sharedpreferences.editor;
import android.os.bundle;
import android.telephony.telephonymanager;
import android.text.textutils;
import android.view.view;
import android.view.view.onclicklistener;
import com.qingguow.mobilesafe.ui.settingitemview;
public class secguide2activity extends basesecguideactivity {
private settingitemview siv_sim;
private sharedpreferences sp;
private telephonymanager telephonymanager;
@override
protected void oncreate(bundle savedinstancestate) {
super.oncreate(savedinstancestate);
setcontentview(r.layout.activity_lost_find2);
siv_sim = (settingitemview) findviewbyid(r.id.siv_sim);
sp = getsharedpreferences("config", mode_private);
telephonymanager = (telephonymanager) getsystemservice(telephony_service);
// 根据保存的数据设置状态
string sim = sp.getstring("sim", "");
if (textutils.isempty(sim)) {
siv_sim.setchecked(false);
} else {
siv_sim.setchecked(true);
}
// 绑定sim卡
siv_sim.setonclicklistener(new onclicklistener() {
@override
public void onclick(view arg0) {
string sim = telephonymanager.getsimserialnumber();
editor editor = sp.edit();
string simsp = sp.getstring("sim", "");
if (textutils.isempty(simsp)) {
siv_sim.setchecked(true);
editor.putstring("sim", sim);
} else {
siv_sim.setchecked(false);
editor.putstring("sim", "");
}
editor.commit();
}
});
}
public void nextstep(view v) {
shownext();
}
public void prestep(view v) {
showpre();
}
@override
public void shownext() {
intent intent = new intent(this, secguide3activity.class);
startactivity(intent);
finish();
}
@override
public void showpre() {
intent intent = new intent(this, secguide1activity.class);
startactivity(intent);
finish();
}
}