我正在开发一个 android 短信应用程序。我必须向多个联系人发送短信。有一种方法可以向多个联系人发送短信,所以我使用了循环。以下是我的代码。
for (int i = 0; i < to_nums.size();i++) {
sendSms(to_nums.get(i), snd_txt.getText().toString() );
}
public void sendSms(final String phoneNumber, final String message){
String SENT = "SMS_SENT";
String DELIVERED = "SMS_DELIVERED";
PendingIntent sentPI = PendingIntent.getBroadcast(this, 0,
new Intent(SENT), 0);
PendingIntent deliveredPI = PendingIntent.getBroadcast(this, 0,
new Intent(DELIVERED),0);
//--- When the SMS has been sent --
sendBroadcastReceiver=new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
switch (getResultCode()) {
case Activity.RESULT_OK:
Toast.makeText(getBaseContext(), "SMS sent",
Toast.LENGTH_SHORT).show();
break;
case SmsManager.RESULT_ERROR_GENERIC_FAILURE:
Toast.makeText(getBaseContext(), "Generic failure",
Toast.LENGTH_SHORT).show();
break;
case SmsManager.RESULT_ERROR_NO_SERVICE:
Toast.makeText(getBaseContext(), "No service",
Toast.LENGTH_SHORT).show();
break;
case SmsManager.RESULT_ERROR_NULL_PDU:
Toast.makeText(getBaseContext(), "Null PDU",
Toast.LENGTH_SHORT).show();
break;
case SmsManager.RESULT_ERROR_RADIO_OFF:
Toast.makeText(getBaseContext(), "Radio off",
Toast.LENGTH_SHORT).show();
break;
default:
break;
}
context.unregisterReceiver(this);
}
};
registerReceiver(sendBroadcastReceiver , new IntentFilter(SENT));
SmsManager sms = SmsManager.getDefault();
sms.sendTextMessage(phoneNumber, null, message, sentPI, deliveredPI);
}
但是当我运行我的代码时,我遇到了一个异常,上面写着“接收器未注册”。对于单个收件人,它可以正常工作。.如何按顺序注册和注销?请朋友们帮帮我。