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How to implement Rate It feature in Android App

...he reference to the activity until it compleats and right after that it is calling dismiss. Dismiss will try to destroy the fragment, but it can't because the activity is held/used by the shared preference apply process.(I wore this because AndroidStudio will prompt the user to change commit to appl...
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Facebook database design?

...end table that holds the UserID and then the UserID of the friend (we will call it FriendID). Both columns would be foreign keys back to the Users table. Somewhat useful example: Table Name: User Columns: UserID PK EmailAddress Password Gender DOB Location TableName: Frien...
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How to implement LIMIT with SQL Server?

...ht now... However, in my case I'm hosed... It's even more criminal when so called 'expert' dba's decide that an unique key in unnecessary in a table... ANY table... Don't even bring up the subject of foreign keys and constraints! – Andrew Rollings Mar 2 '09 at ...
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Is Redis just a cache?

...cts like Locks and Semaphores. There is a Redis based in memory data grid called Redisson which allows to easily build distributed application on Java. Thanks to distributed Lock, Semaphore, ReadWriteLock, CountDownLatch, ConcurrentMap objects and many others. Perfectly works in cloud and supports...
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How to Reverse Fragment Animations on BackStack?

... @TarikW i'm bit late, but order is important in this, you need to call setCostomAnimations before replace, addToBackStack methods – MD Husnain Tahir Oct 7 '16 at 4:30 ...
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Populating a razor dropdownlist from a List in MVC

... Your call to DropDownListFor needs a few more parameters to flesh it out. You need a SelectList as in the following SO question: MVC3 DropDownListFor - a simple example? With what you have there, you've only told it where to s...
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AngularJS access parent scope from child controller

...troller your child controller will inherit all scope variables. So theoritically you don't have to call $parent. The above example can also be written as follows: function ParentCtrl($scope) { $scope.cities = ["NY","Amsterdam","Barcelona"]; } function ChildCtrl($scope) { $scope.parentCitie...
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How can I find the data structure that represents mine layout of Minesweeper in memory?

...First you should think about where minefield initialization routine can be called. I thought of following: When you launch the game When you click happy face When you click Game->New or press F2 When you change level difficulty I decided to check out F2 accelerator command. To find accelera...
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Best practice for nested fragments in Android 4.0, 4.1 (

.../ @Override public void onPause() { super.onPause(); handler.removeCallbacks(runPager); } I wouldn't consider it 'best practice', but I have live apps using this hack and I am yet to have any issues with it. I also use this method for embedding view pagers - https://gist.github.com/chrisj...
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How to close activity and go back to previous activity in android

... I think you are calling finish() method in MainActivity before starting SettingsActivity. The scenario which you have described will occur in following two ways: EITHER You have set android:noHistory = "true" for MainActivity inside Andro...