嗨朋友我正在使用以下代码来检测 SIM 卡更改但无法获得结果。请建议我在哪里犯了错误。
我正在使用 MainActivity.java 类来存储 SIM msisdn。像这样
public class MainActivity extends Activity {
String FILENAME = "old_file.txt";
int simstatus;
String msisdn;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
TelephonyManager tManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
simstatus = tManager.getSimState();
if (simstatus != TelephonyManager.SIM_STATE_ABSENT) {
System.out.println("--------SIM Present:" + simstatus);
msisdn = tManager.getLine1Number();
FileOutputStream fos;
try {
fos = openFileOutput(FILENAME, Context.MODE_PRIVATE);
fos.write(msisdn.getBytes());
System.out.println("---------Data written to files is:"
+ msisdn);
fos.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
为了接收 Reboot 事件，我正在使用这样的 SIMTestReceiver 类。
public class SIMTestReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
if ("android.intent.action.BOOT_COMPLETED".equals(intent.getAction())) {
Intent CompareSimServiceIntent = new Intent(context,TestDATAScreen.class);
context.startService(CompareSimServiceIntent);
}
}
为了比较旧 SIM 和新 SIM，我正在使用这样的 TestDATAScreen 服务类。
public class TestDATAScreen extends Service {
String FILENAME = "old_file.txt";
@Override
public IBinder onBind(Intent intent) {
// TODO Auto-generated method stub
return null;
}
@Override
public int onStartCommand(Intent intent, int flags, final int startId) {
Toast.makeText(this, "Service Started", Toast.LENGTH_LONG).show();
TelephonyManager tManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
try {
FileInputStream fis = openFileInput(FILENAME);
InputStreamReader in = new InputStreamReader(fis);
BufferedReader br = new BufferedReader(in);
String data = br.readLine();
System.out.println("---Data Read From File is:" + data);
String newsiminfo = tManager.getLine1Number();
System.out.println("---New SIM no is:" + newsiminfo);
if (data.equals(tManager.getLine1Number())) {
System.out.println("------Old sim Present:");
Toast.makeText(this, "Old SIM", Toast.LENGTH_LONG).show();
} else {
Toast.makeText(this, "New SIM", Toast.LENGTH_LONG).show();
SmsManager smsMngr = SmsManager.getDefault();
String destinationaddress = "8689908070";
String scAddress = null;
String text = "New Sim Is Inserted In Your Device";
PendingIntent sentIntent = null;
PendingIntent deliveryIntent = null;
smsMngr.sendTextMessage(destinationaddress, scAddress, text,
sentIntent, deliveryIntent);
System.out.println("-----SMS Send");
}
} catch (Exception e) {
}
return startId;
}