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;@Overridepublic 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;@Overrideprotected 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() {@Overridepublic 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();}@Overridepublic void showNext() {Intent intent = new Intent(this, SecGuide3Activity.class);startActivity(intent);finish();}@Overridepublic void showPre() {Intent intent = new Intent(this, SecGuide1Activity.class);startActivity(intent);finish();}}
切忌贪婪，恨不得一次玩遍所有传说中的好景点，
