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How to hide the keyboard when I press return key in a UITextField?
Clicking in a textfield makes the keyboard appear.
How do I hide it when the user presses the return key?
12 Answers
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How do I remove blank elements from an array?
...if no rejections are made. That can be a gotcha if you're not careful (thanks to ninja08 for pointing this out in the comments).
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shortcut in Android Studio to locate the current editing src file
Do you know how to check the location of current editing file in the project tree panel (the very left panel of the Android Studio), except manually. (The worst case is that all the folders there are collapsed)
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What is the purpose of Looper and how to use it?
I am new to Android. I want to know what the Looper class does and also how to use it. I have read the Android Looper class documentation but I am unable to completely understand it.
I have seen it in a lot of places but unable to understand its purpose. Can anyone help me by defining the purpos...
Adding two Java 8 streams, or an extra element to a stream
I can add streams or extra elements, like this:
8 Answers
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What is the difference between Left, Right, Outer and Inner Joins?
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Simple Example: Lets say you have a Students table, and a Lockers table. In SQL, the first table you specify in a join, Students, is the LEFT table, and the second one, Lockers, is the RIGHT table.
Each student can be assigned to a locker, so there is a LockerNumber column in the Stud...
(SC) DeleteService FAILED 1072
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make sure the service is stopped, the services control panel is closed, and no open file handles are open by the service.
Also make sure ProcessExplorer is not running.
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Inconsistent Accessibility: Parameter type is less accessible than method
...at is private (it is nested in a class?). You can't do that. You need to make ACTInterface at least as accessible as clients.
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What's the optimum way of storing an NSDate in NSUserDefaults?
...erval to a different primitive)? Just [sharedDefaults setObject:theDate forKey:@"theDateKey"] and be done with it. NSDate is one of the "main types" supported by the PLIST format (dates, numbers, strings, data, dictionaries, and arrays), so you can just store it directly.
See the documentation for ...
Does MySQL foreign_key_checks affect the entire database?
...doc/refman/5.7/en/server-system-variables.html
According to this, FOREIGN_KEY_CHECKS is "Both" for scope. This means it can be set for session:
SET FOREIGN_KEY_CHECKS=0;
or globally:
SET GLOBAL FOREIGN_KEY_CHECKS=0;
sh...