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How to implement onBackPressed() in Fragments?

...agmentActivity (or a subclass, such as AppCompatActivity) this will happen by default. See FragmentActivity#onBackPressed – Xiao Sep 24 '15 at 1:00 4 ...
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How can I efficiently select a Standard Library container in C++11?

... recognizable. Question 1: Associative ? If you need to easily search by one key, then you need an associative container If you need to have the elements sorted, then you need an ordered associative container Otherwise, jump to the question 2. Question 1.1: Ordered ? If you do not need a sp...
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json_encode is returning NULL?

...mysql_query('SELECT `id`, `name`, `description`, `icon` FROM `staff` ORDER BY `id` DESC LIMIT 20') or die(mysql_error()); $rows = array(); while($row = mysql_fetch_assoc($result)){ $rows[] = $row; } echo json_encode($rows); ?> When iterating over mysql_num_rows you should use < not &lt...
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event Action vs event EventHandler

... know and love : ) You can customize the code for the add/remove handlers by changing the scope of the FireNiceEvent delegate to protected. This now allows developers to add custom hooks to the hooks, such as logging or security hooks. This really makes for some very powerful features that now allo...
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Data access object (DAO) in Java

...yeeDAO { List<Employee> findAll(); List<Employee> findById(); List<Employee> findByName(); boolean insertEmployee(Employee employee); boolean updateEmployee(Employee employee); boolean deleteEmployee(Employee employee); } Next we have to provide a concre...
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What is the second parameter of NSLocalizedString()?

... The comment string is ignored by the application. It is used for a translator's benefit, to add meaning to the contextual usage of the key where it is found in your application. For example, the Hello_World_Key key may take different values in a given l...
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How to save an image to localStorage and display it on the next page?

...r also needs this problem solved: Firstly, I grab my image with getElementByID, and save the image as a Base64. Then I save the Base64 string as my localStorage value. bannerImage = document.getElementById('bannerImg'); imgData = getBase64Image(bannerImage); localStorage.setItem("imgData", imgData...
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Creating an Android trial application that expires after a fixed time period

...ing through the trouble of the third technique. Users can circumvent this by manually changing the date on their phone, but most users won't go through the trouble to do such a thing. The third technique is the only way that I have heard about to truly be able to accomplish what you want to do. Y...
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What do Clustered and Non clustered index actually mean?

... You should clarify what you mean by "physically". – Spencer Ruport Aug 9 '09 at 17:26 146 ...
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Socket.IO Authentication

...te channels. A unique socket id is generated and sent to the browser by Pusher. This is sent to your application (1) via an AJAX request which authorizes the user to access the channel against your existing authentication system. If successful your application returns an authorizat...