手机开机或启动广播接收者

public class BootCompleteReceiver extends BroadcastReceiver {
private static final String TAG = "BootCompleteReceiver";

@Override
public void onReceive(Context context, Intent intent) {
Log.i(TAG, "手机启动完毕了");
SharedPreferences sp = context.getSharedPreferences("config",Context.MODE_PRIVATE);
// 检查是否开启手机防盗
boolean protecting = sp.getBoolean("protecting", false);
if (protecting) {
// 1.获取当前手机的sim卡
TelephonyManager tm = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);

String realSim = tm.getSimSerialNumber();

String bindSim = sp.getString("sim", "");
if(!realSim.equals(bindSim)){//sim卡变化了 . 手机可能被盗了.发送短信到安全号码
SmsManager smsManager = SmsManager.getDefault();
String safenumber = sp.getString("safenumber", "");
smsManager.sendTextMessage(safenumber, null, "sim changed!", null, null);
}

}
}

}

 //发送短信到安全号码需要权限

<uses-permission android:name="android.permission.SEND_SMS" />
<uses-permission android:name="android.permission.RECEIVE_SMS" />

 <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />

<receiver android:name="com.itheima.mobilesafe.receiver.BootCompleteReceiver" >
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>