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How to detect first time app launch on an iPhone
...ingWithOptions:(NSDictionary *)launchOptions
{
if (![[NSUserDefaults standardUserDefaults] boolForKey:@"HasLaunchedOnce"])
{
[[NSUserDefaults standardUserDefaults] setBool:YES forKey:@"HasLaunchedOnce"];
[[NSUserDefaults standardUserDefaults] synchronize];
}
return YE...
how to change uiviewcontroller title independent of tabbar item title
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in xcode 9 and ios 11 in swift 4 it show error that unambiguous use of title
– Sushobhit
Oct 4 '17 at 13:15
1
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How do I sort a Set to a List in Java?
In Java, I have a Set , and I want to turn it into a sorted List . Is there a method in the java.util.Collections package that will do this for me?
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How to tell if a tag failed to load
I'm dynamically adding <script> tags to a page's <head> , and I'd like to be able to tell whether the loading failed in some way -- a 404, a script error in the loaded script, whatever.
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Color in git-log
... default:
the HEAD in cyan
the remote branches in red
the tag in green
and can be changed through color.decorate config.
But the git log --format don't offer a way to display specifically the HEAD or remotes or branch: all three are displayed through %d, with one color possible.
Update May ...
CMake output/build directory
I'm pretty new to CMake, and read a few tutorials on how to use it, and wrote some complicated 50 lines of CMake script in order to make a program for 3 different compilers. This probably concludes all my knowledge in CMake.
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Perform debounce in React.js
...is some initial wiring but you are composing primitive blocks on your own, and you can make your own custom hook so that you only need to do this once.
// Generic reusable hook
const useDebouncedSearch = (searchFunction) => {
// Handle the input text state
const [inputText, setInputText] = ...
Is 1.0 a valid output from std::generate_canonical?
I always thought random numbers would lie between zero and one, without 1 , i.e. they are numbers from the half-open interval [0,1). The documention on cppreference.com of std::generate_canonical confirms this.
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Difference between . and : in Lua
I am confused about the difference between function calls via . and via :
3 Answers
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android image button
How can i create a button with no text and an image centered horizontally ?
I don't want to use an ImageButton because I want to define a different backgound image
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