大约有 3,668 项符合查询结果(耗时:0.0183秒) [XML]

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What is the relationship between Looper, Handler and MessageQueue in Android?

I have checked the official Android documentation/guide for Looper , Handler and MessageQueue . But I couldn't get it. I am new to android, and got very confused with these concepts. ...
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How do android screen coordinates work?

I am working with Android Animation and I have found the Android coordinate system to be quite confusing so I am here to ask this question about how coordinates work in Android. I am following this image for moving one view to another but it seems it's not working: ...
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How to rotate portrait/landscape Android emulator? [duplicate]

I am new to Android development. I know if you change a android phone from portrait to landscape sometimes the app relays its self out on the screen.. so how do I simulate rotating a phone with the emulator? On the Blackberry emulators there's a button in the menu to turn the phone, but I can't f...
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How to calculate dp from pixels in android programmatically [duplicate]

...Resources().getDisplayMetrics().densityDpi / 160f) – android developer Aug 29 '16 at 20:05 2 Use ...
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How to prevent the activity from loading twice on pressing the button

... Add this to your Activity definition in AndroidManifest.xml... android:launchMode = "singleTop" For example: <activity android:name=".MainActivity" android:theme="@style/AppTheme.NoActionBar" android:launchMode = "singleTo...
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How do I apply a style to all buttons of an Android application

... For Android styles, you reference the preset attributes that Android has laid out in R.attr. In this case, it looks like you want to to reference android:buttonStyle. I think this would work: <style name="ApplicationStyle" p...
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Error: Configuration with name 'default' not found in Android Studio

I am using the volley library to perform network operation in android. So I am trying to add this library in my project which is created in Android Studio and gradle system. ...
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How to import existing Android project into Eclipse?

I'm trying to import and existing Android project into my current Eclipse workspace. I select File->New->Android Project, which brings up the Android project dialog, I then select, "Create project from existing source", Location, Build Target and Finish. ...
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How to change a TextView's style at runtime

I have an android app on which, when the user taps a TextView , I would like to apply a defined style. 8 Answers ...
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Question mark (?) in XML attributes for Android

Can anyone explain the question mark means in Android XML attributes? 2 Answers 2 ...