确定之前是否设置过 Android 首选项

发布于 2024-11-16 06:40:57 字数 516 浏览 6 评论 0原文

我有一个应用程序，其中包含不同语言的用户界面文本。我不想将其保存在 strings.xml 中，因为我希望用户能够更改它们（而不依赖于手机的区域设置）。

我已经设置了阅读此内容的偏好。默认情况下，我希望 UI 采用区域设置值，但如果用户更改了 UI 语言首选项，我希望它使用该值。

有什么方法可以确定之前是否已设置首选项？问题是， getInt 让我设置默认值，因此我无法检查（例如） uiLang==null 来确定之前是否设置了首选项。

SharedPreferences settings = getPreferences(MODE_PRIVATE);
//If uiLang has not been set before, then lets use the locale.
uiLang = settings.getInt("uiLang", 1);  //English (=1) es default
myUI = new UIText(uiLang);
myTextView.setText(myUI.title);

原文

I have an app which will have the UI text in different languages. I do not want to save this in the strings.xml, because I want the user to be able to change them (and not be dependant on the phone's locale).

I've setup a preference to read this. By default, I want the UI to take the locale value, but if the user has changed the UI lang preference, I want it to use that.

Is there any way to determine if a preference has been set previously? The thing is, the getInt makes me set a default, so I can't check (for example) that uiLang==null to determine if a preference was set before or not.

SharedPreferences settings = getPreferences(MODE_PRIVATE);
//If uiLang has not been set before, then lets use the locale.
uiLang = settings.getInt("uiLang", 1);  //English (=1) es default
myUI = new UIText(uiLang);
myTextView.setText(myUI.title);

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