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Load local JSON file into variable

...sted your object into content.json directly, it is invalid JSON. JSON keys and values must be wrapped in double quotes (" not ') unless the value is numeric, boolean, null, or composite (array or object). JSON cannot contain functions or undefined values. Below is your object as valid JSON. { "id...
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Why does viewWillAppear not get called when an app comes back from the background?

... In other words, if someone looks at another application or takes a phone call, then switches back to your app which was earlier on backgrounded, your UIViewController which was already visible when you left your app 'doesn't care' so to speak -- as far as it is concerned, it's never disappeared and...
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使用模拟器构建应用程序 · App Inventor 2 中文网

...Inventor includes an emulator for the phone. The emulator lets you develop and test apps using a virtual phone instead of a real phone. Instead of connecting a phone to the USB port, just start the emulator program. When you click Connect to Phone in the Blocks Editor, your app will appear in the em...
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How do I update pip itself from inside my virtual environment?

...ate pip itself? According to pip --version , I currently have pip 1.1 installed in my virtualenv and I want to update to the latest version. ...
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What's onCreate(Bundle savedInstanceState)

... If you save the state of the application in a bundle (typically non-persistent, dynamic data in onSaveInstanceState), it can be passed back to onCreate if the activity needs to be recreated (e.g., orientation change) so that you don't lose this prior information. If no data was suppl...
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java.lang.OutOfMemoryError: bitmap size exceeds VM budget - Android

...problem isn't handling many images, it's that your images aren't getting deallocated when your activity is destroyed. It's difficult to say why this is without looking at your code. However, this article has some tips that might help: http://android-developers.blogspot.de/2009/01/avoiding-memory-l...
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ALTER TABLE to add a composite primary key

I have a table called provider . I have three columns called person , place , thing . There can be duplicate persons, duplicate places, and duplicate things, but there can never be a dupicate person-place-thing combination. ...
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JavaScript for…in vs for

...sOwnProperty(member)" which checks if a member returned by iterator is actually member of the object. See: javascript.crockford.com/code.html – Damir Zekić Oct 29 '08 at 23:09 57 ...
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Setting DIV width and height in JavaScript

I have a div with id="div_register" . I want to set its width dynamically in JavaScript. 6 Answers ...
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django-debug-toolbar not showing up

... to settings.py: def show_toolbar(request): return True SHOW_TOOLBAR_CALLBACK = show_toolbar That will effectively remove all checks by debug toolbar to determine if it should or should not load itself; it will always just load. Only leave that in for testing purposes, if you forget and launc...