Android：setOnDismissListern API低于17 [英] Android: setOnDismissListern for API lower than 17

问题描述

我创建了一个AlertDialog：

I created an AlertDialog:

private CharSequence[] _items = { "item1", "item2", "item3", "item4",
"item5", "item6", "item7" };

AlertDialog.Builder daysBuilder = new AlertDialog.Builder(this);
    daysBuilder.setTitle("SomeCaption");

    daysBuilder.setMultiChoiceItems(_items,new Boolean[] { false, true, false, 
false false false, true }, SetListener);
    daysBuilder.setPositiveButton("OK", OKListener);
    daysBuilder.setNegativeButton("Cancel", CancelListener);

    AlertDialog alert = daysBuilder.create();
    alert.show();`

通过语句 new Boolean [] {false，true，false false false false，true} 默认情况下，对话框中的项目
将被选中/取消选中。

Through the statement "new Boolean[] { false, true, false false false false, true }" the items in the dialog get checked/unchecked by default.

当我打开对话框时，更改项目的选择，然后关闭（通过按取消或设备的后退按钮）对话框被关闭。

When I open the dialog, change the selection of the items but then dismiss (by pressing cancel or the back-button of the device) the dialog gets dismissed. So far so good.

但是，当我重新打开对话框时，这些项目将从上一次打开对话框以前的更改中选中/取消选中状态。

But when I reopen the dialog, the items have the checked/unchecked state of the previous changes from the last opening of the dialog.

但是当第一次打开时对话框被拒绝时，我想让项目被选中/取消选中状态，就像我创建对话框一样（ new Boolean [] {false，true，false false false false，true} ）。

But when the dialog was dissmissed at the first opening, I want to have the items checked/unchecked state like when I created the dialog (new Boolean[] { false, true, false false false false, true }).

所以基本上我需要一个机会，当对话被拒绝时，所以我可以重新设置项目的状态。

So basically I need an opportunity to get notfied when the dialog gets dissmissed so I can then reset the state of the items.

我尝试使用setOnDismissListener对话框对象。不幸的是，这只是在API 17中可用。

I tried it with the setOnDismissListener for the dialog object. Unfortunately this is just available in API 17.

setOnDismissListener在模拟器（API 17）中为我（在我需要的情况下，我需要什么），而不是在我的设备上（Android 4.1 => API 16）

setOnDismissListener worked perfekt for me (excactelly what I need) in the emulator (API 17) but not on my device (Android 4.1 => API 16)

API 16中是否有类似的东西？

Is there something similar in API 16?

推荐答案

问题是您正在使用 setOnDismissListener AlertDialog.Builder 。这是在api级别1中的Api级别17中引入的 setOnDismissListener AlertDialog b
$ b

The problem is you are using setOnDismissListener of AlertDialog.Builder. This was introduced in Api level 17, setOnDismissListener of AlertDialog itself has been since api level 1.

AlertDialog alert = daysBuilder.create();
alert.setOndismissListener(yourdismisslistener);
alert.show();`

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