我有一个程序,只需按一下按钮就可以向一组人发送预定义的文本消息。我的工作正常,但是我的问题是,当它发送消息时,每条消息都会弹出2个吐司。码:

package com.mfd.alerter;

//imports

public class homeScreen extends Activity {

//buttons

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    //vars

    // Grab the time
    final Date anotherCurDate = new Date();
    SimpleDateFormat formatter = new SimpleDateFormat("km");
    final String formattedTime = formatter.format(anotherCurDate);

    // Contacts
    final String[] numbers = getResources().getStringArray(R.array.numbers);

    // Start messages. Only 1 is given to shorten post
    callStructureFire.setOnClickListener(new View.OnClickListener() {
        public void onClick(View v) {
            String msgText = "MFD PAGE OUT:\nStructure Fire\nTimeout:"+formattedTime;
            for (int i = 0; i < numbers.length; i++) {
                sendSMS(numbers[i], msgText);
            }
        }
    });

    //more call types. not important.
}

//---sends a SMS message to another device---
private void sendSMS(String numbers, String message)
{
    String SENT = "SMS_SENT";

    PendingIntent sentPI = PendingIntent.getBroadcast(this, 0,
        new Intent(SENT), 0);


    //---when the SMS has been sent---
    registerReceiver(new BroadcastReceiver(){
        @Override
        public void onReceive(Context arg0, Intent arg1) {
            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;
            }
        }
    }, new IntentFilter(SENT));

    SmsManager sms = SmsManager.getDefault();
    sms.sendTextMessage(numbers, null, message, sentPI, null);
}

//action bar stuff. not important.

}


更详细:假设我将文本发送给3个人,将弹出6条吐司消息,提示“ SMS Sent”。我如何做到只有3个出现?

另外,是否有办法添加发送邮件的计数器?例如:“已发送消息1/10”,“已发送消息2/10”等?

最佳答案

您不应该只注册一次接收者,而不是每次调用sendSMS时都注册一次。
因为您有3个BroadCastReceivers,所以您收到6条带有3条短信的Toast。因此,在第一次运行中,您将获得1吐司。在第二轮中,您将获得2个Toasts(在第一轮中注册的接收器被调用,在第二轮中注册的接收器被调用)。在第三轮中,所有三个接收器都被调用,因此您又得到了三个吐司。总计-6敬酒...

所以我想,您只需在调用sendSMS的for循环之前注册一个接收者,或者如果您想在sendSMS中进行注册,则必须在方法末尾取消注册。

我希望这有帮助,
干杯!

08-15 16:40