大约有 40,101 项符合查询结果(耗时:0.0421秒) [XML]

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Auto select file in Solution Explorer from its open tab

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Sort objects in an array alphabetically on one property of the array

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Set Locale programmatically

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Difference between Activity and FragmentActivity

I was working on fragments and came across two things Activity and FragmentActivity which are used several times. I want to know that is there any difference between these two, because when I changed Activity with FragmentActivity , it had no effect on the app. ...
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Using Application context everywhere?

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Dialog throwing "Unable to add window — token null is not for an application” with getApplication()

My Activity is trying to create an AlertDialog which requires a Context as a parameter. This works as expected if I use: 28...
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How do I get the SharedPreferences from a PreferenceActivity in Android?

I am using a PreferenceActivity to show some settings for my application. I am inflating the settings via a xml file so that my onCreate (and complete class methods) looks like this: ...
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How to fix 'android.os.NetworkOnMainThreadException'?

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How can I access getSupportFragmentManager() in a fragment?

I have a FragmentActivity and I want to use a map fragment within it. I'm having a problem getting the support fragment manager to access it. ...
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Further understanding setRetainInstance(true)

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