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();
}
}