安卓：安卓4.1模拟器调用onDateSet两次DatePicker的对话 [英] Android: Android 4.1 Emulator Invoking onDateSet Twice from DatePicker Dialog

问题描述

我的应用程序在我的Andr​​oid 2.2的模拟器可以正常使用。然后，我决定测试在Android 4.1模拟器。该 DatePickerDialog 看起来有点不同的，由于某种原因，当我在完成，preSS中的 onDateSet（）监听器被调用两次，导致我的应用程序的问题。

My application was working perfectly on my Android 2.2 emulator. I then decided to test on an Android 4.1 emulator. The DatePickerDialog looks a little different and for some reason when I press on "Done", the onDateSet() listener gets called twice and causes problems in my application.

我知道这是因为如下图所示，在code中的日志打印两次，每当我点击完成

I know this because the log shown below in the code is printed twice whenever I click on "Done"

mDateSetListener = new DatePickerDialog.OnDateSetListener() {
    @Override
    public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
            Log.v("onDateSet", "ENTERED");
            //rest of code...
    }};

的Andr​​oid 2.2的DatePicker

Android 2.2 DatePicker

安卓4.1的DatePicker

Android 4.1 DatePicker

推荐答案

尝试设置一个布尔检查同一对话框中的双火。类似的东西来：

Try setting a boolean to check for a double fire within the same dialog. Something similar to:

Calendar c = Calendar.getInstance();
c.add(Calendar.DAY_OF_YEAR, 1);
final DatePickerDialog dateDialog = new DatePickerDialog(this, new DatePickerDialog.OnDateSetListener() {
    boolean fired = false;
    public void onDateSet(final DatePicker view, final int year, final int monthOfYear, final int dayOfMonth) {
        Log.i("PEW PEW", "Double fire check");
        if (fired == true) {
            Log.i("PEW PEW", "Double fire occured. Silently-ish returning");
            return;
        } else {
            //first time fired
            fired = true;
        }
        //Normal date picking logic goes here
    }
}, c.get(Calendar.YEAR), c.get(Calendar.MONTH), c.get(Calendar.DAY_OF_MONTH));
dateDialog.show();

这双火的问题也发生在一个TimePickerDialog的onTimeSet这种检查也适用于那些。

This double fire issue also happens with onTimeSet of a TimePickerDialog and this check also works for those.

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