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What is the difference between max-device-width and max-width for mobile web?

I need to develop some html pages for iphone/android phones, but what is the difference between max-device-width and max-width ? I need to use different css for different screen size. ...
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How to check if activity is in foreground or in visible background?

... static boolean activityVisible; } Register your application class in AndroidManifest.xml: <application android:name="your.app.package.MyApplication" android:icon="@drawable/icon" android:label="@string/app_name" > Add onPause and onResume to every Activity in the proje...
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Android set height and width of Custom view programmatically

... You can find an example on how to override onMeasure() by looking at the android docs and the LabelView sample in your SDK directory. share | improve this answer | follow ...
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How to exit from the application and show the home screen?

... Android's design does not favor exiting an application by choice, but rather manages it by the OS. You can bring up the Home application by its corresponding Intent: Intent intent = new Intent(Intent.ACTION_MAIN); intent.add...
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Android:What is difference between setFlags and addFlags for intent

....new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f6664189%2fandroidwhat-is-difference-between-setflags-and-addflags-for-intent%23new-answer', 'question_page'); } ); Post as a guest ...
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Deleting Row in SQLite in Android

This might be a dumb question, but I'm new to SQLite and I can't seem to figure this out. I have 1 table that has columns KEY_ROWID , KEY_NAME , KAY_LATITUDE , and KEY_LONGITUDE . I want the user to be able to select one and delete it; Can anyone give me a direction to start in? My question i...
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App Inventor 2 解决一个编译报错DX failed - App Inventor 2 中文网 - 清...

...nterrupted      [java]     at com.android.dx.command.dexer.Main.processAllFiles(Main.java:615)      [java]     at com.android.dx.command.dexer.Main.runMultiDex(Main.java:368)      [java]  &nbs...
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android ndk: 代码可以在C++,c上实现。java可以直接做调用。 - 微思想区 ...

android ndk: 代码可以在C++,c上实现。java可以直接做调用。
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Android下的DCIM文件夹是否特殊?通过FileTools拓展只能写入图片,不能写文...

Android下的DCIM文件夹是否特殊?通过FileTools拓展只能写入图片,不能写文本?
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将Genymotion模拟器与App Inventor一起使用 · App Inventor 2 中文网

...Inventor一起使用 与 App Inventor 一起发布的 Google Android 模拟器运行速度很慢。有些人更喜欢使用其他模拟器,例如 Genymotion 生产的模拟器。 MIT 的 App Inventor 安装包不包含 Genymotion 模拟器,因为 MIT 没有分发它的权限。但...