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What's the difference between commit() and apply() in SharedPreferences

I am using SharedPreferences in my android app. I am using both commit() and apply() method from shared preference. When I use AVD 2.3 it shows no error, but when I run the code in AVD 2.1, apply() method shows error. ...
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How to configure Ruby on Rails with no database?

... 4: Use -O(Capital 'O') or --skip-activerecord option to generate an application without a database. rails new myApp -O or rails new myApp --skip-activerecord This Answer is reshared from here For Rails 5: Use --skip-active-record option to generate an application without a databas...
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Does a favicon have to be 32x32 or 16x16?

...recommends 16x16, 32x32 and 48x48 packed in the favicon.ico file. For iOS, Apple recommends specific file names and resolutions, at most 180x180 for latest devices running iOS 8. Android Chrome primarily uses a manifest and also relies on the Apple touch icon. IE 10 on Windows 8.0 requires PNG pictu...
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How do I detect “shift+enter” and generate a new line in Textarea?

...d recommend against changing it. However, if you must do this, the easiest approach would be to find the script that is making Enter submit the form and change it. The code will have something like if (evt.keyCode == 13) { form.submit(); } ... and you could just change it to if (evt.keyCode == ...
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Git stash pop- needs merge, unable to refresh index

I can't pop my stash because I merged a branch which apparently conflicts with my stash and now my stash is seemingly unable to be popped. ...
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The Role Manager feature has not been enabled

... how can I do this from code instead of web.config? I tried putting it in Application_Start and it says This method can only be called during the application's pre-start initialization phase. – Maslow May 8 '13 at 15:17 ...
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How to change the status bar color in Android?

... This is supported on device pre-lollipop thanks to the library support-v7-appcompat starting from version 21. Blogpost about support appcompat v21 from Chris Banes Read more about the Material Theme on the official Android Developers website ...
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Android - Set max length of logcat messages

...t will truncate any log message that it considers to be "too long". This happens both inside of Eclipse and when running logcat on the command line using adb -d logcat , and is truncating some important debugging messages. ...
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Vagrant error: NFS is reporting that your exports file is invalid

... versions of VirtualBox and Vagrant noted in Discourse as Your First Rails App: Vagrant 1.1.2 VirtualBox 4.2.10 I was having the same issue on Mac (OS X 10.9 (Mavericks)), but rolling back to these versions seemed to fix it for me. ...
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How can one display images side by side in a GitHub README.md?

...d color schemes side by side instead of top and bottom. Help would be much appreciated, thanks! 7 Answers ...