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Is there a unique Android device ID?

...at Anthony's answer. Full disclosure: my app used the below approach originally but no longer uses this approach, and we now use the approach outlined in the Android Developer Blog entry that emmby's answer links to (namely, generating and saving a UUID#randomUUID()). There are many answers to this...
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If string is empty then return some default value

... ActiveSupport adds a presence method to all objects that returns its receiver if present? (the opposite of blank?), and nil otherwise. Example: host = config[:host].presence || 'localhost' ...
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No identities were available - administrator request

...one) In your project's build settings update your code signing identities (all of them) to the new one if there is one. (The old one was probably expired which is one of the biggest causes for the error message you saw) Verify that your bundle ID is correct (CaSe SeNsEtIvE) Back to XCode Organizer -...
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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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How to switch between hide and view password

... You can dynamically change the attributes of a TextView. If you would set the XML Atrribute android:password to true the view would show dots if you set it to false the text is shown. With the method setTransformationMethod you should be ...
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How to decompile an APK or DEX file on Android platform? [closed]

...r versions. for more how-to-use-dextojar. Hope this will help You and all! :) share | improve this answer | follow | ...
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Environment variables in Mac OS X

...:want launchctl setenv PATH $PATH Environment variables are not automatically updated in running applications. You will need to relaunch applications to get the updated environment variables (although you can just set variables in your shell, e.g. PATH=whatever:you:want; there's no need to relaunc...
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support FragmentPagerAdapter holds reference to old fragments

... fragments that have been added to the fragment manager are saved automatically. Even if your app is killed, this information is restored when you relaunch your app. Now consider that you have viewed a few pages, Fragments A, B and C. You know that these have been added to the fragment manager. Bec...
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How to make a copy of a file in android?

In my app I want to save a copy of a certain file with a different name (which I get from user) 10 Answers ...
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How to construct a REST API that takes an array of id's for the resources

... If you are passing all your parameters on the URL, then probably comma separated values would be the best choice. Then you would have an URL template like the following: api.com/users?id=id1,id2,id3,id4,id5 ...