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App Inventor 2 计时器(Clock)详细用法示例 · App Inventor 2 中文网

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App Inventor 2 UrsPahoMqttClient 拓展 - 物联网轻量级MQTT协议 · App Inventor 2 中文网

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App Inventor 2 NotificationStyle 拓展:个性化通知栏样式 · App Inventor 2 中文网

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App Inventor 2 任意组件代码块 · App Inventor 2 中文网

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How to decide between MonoTouch and Objective-C? [closed]

...hone development. Being very comfortable in C# and .Net, it seems like an appealing option, despite some of the quirkiness of the Mono stack. However, since MonoTouch costs $400, I'm somewhat torn on if this is the way to go for iPhone development. ...
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How to handle code when app is killed by swiping in android?

If my app is running and i press home button, the app goes in background. Now if a long press the home button and kill the app by swiping it from the recent app list, none of the events like onPause() , onStop() or onDestroy() gets called rather the process is terminated. So if i want my servic...
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Installing Bootstrap 3 on Rails App

I'm trying to install Bootstrap 3.0 on my Rails app. I recently finished Michael Hartl's tutorial and am now trying to build my own system using this new version of Bootstrap, but I have a few questions that I'm not sure about. ...
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How do I print a list of “Build Settings” in Xcode project?

... username ALWAYS_SEARCH_USER_PATHS YES APPLE_INTERNAL_DEVELOPER_DIR /AppleInternal/Developer APPLE_INTERNAL_DIR /AppleInternal APPLE_INTERNAL_DOCUMENTATION_DIR /AppleInternal/Documentation APPLE_INTERNAL_LIBRARY_DIR ...
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Design for Facebook authentication in an iOS app that also accesses a secured web service

Goal: Allow a user to authentication with Facebook into an iOS application which requires access to a protected web service that I'm running. ...
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What is an Android PendingIntent?

... A PendingIntent is a token that you give to a foreign application (e.g. NotificationManager, AlarmManager, Home Screen AppWidgetManager, or other 3rd party applications), which allows the foreign application to use your application's permissions to execute a predefined piece of ...