OnTimeSet还呼吁解雇TimePickerDialog时 [英] OnTimeSet called also when dismissing TimePickerDialog

问题描述

今天，我试图使用 TimePickerDialog ，但我发现了几个漏洞。

Today I was trying to use the TimePickerDialog but I noticed a couple of flaws.

1. OnTimeSet被调用时也被驳回的对话框（通过点击之外，例如）
2. OnTimeSet调用两次当用户点击完成按钮

我正在使用的API为18。

The API I'm using is 18.

任何人都经历了这些问题呢？你是如何解决这些问题？

Anyone else has experienced these problems? How did you solve them?

推荐答案

今天面对完全一样的问题。难道不明白，为什么这是怎么回事，却发现了一个简单的解决方案：

Faced the exact same issue today. Could not figure out why this was happening, but found a simple solution:

方法onTimeSet（）被调用一次时被关闭对话框，被称为点击完成按钮时的两倍。无论哪种方式，还有就是onTimeSet 1骚扰呼叫（）。所以，我决定总是忽略第一个电话。

Method onTimeSet() is called once when dialog is dismissed and is called twice when Done button is clicked. Either way, there is one unwanted call to onTimeSet(). So I decided to always ignore the first call.

这里的code：

Calendar mcurrentTime = Calendar.getInstance();
int hour = mcurrentTime.get(Calendar.HOUR_OF_DAY);
int minute = mcurrentTime.get(Calendar.MINUTE);

TimePickerDialog mTimePicker;
mTimePicker = new TimePickerDialog(MainActivity.this, new TimePickerDialog.OnTimeSetListener() 
    {
        int callCount = 0;   //To track number of calls to onTimeSet()

        @Override
        public void onTimeSet(TimePicker timePicker, int selectedHour, int selectedMinute) 
        {
             if(callCount == 1)    // On second call
             {
                 timeString = selectedHour + ":" + selectedMinute + ":00";
                 Log.d("TEST", "Chosen time : "+ timeString);           
             }

             callCount++;    // Incrementing call count.

        }
    }, hour, minute, true);

    mTimePicker.setTitle("Pick Time");
    mTimePicker.show();

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