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Detect permission of camera in iOS
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Check the AVAuthorizationStatus and handle the cases properly.
NSString *mediaType = AVMediaTypeVideo;
AVAuthorizationStatus authStatus = [AVCaptureDevice authorizationStatusForMediaType:mediaType];
if(authStatus == AVAuthorizationStatusAuthorize...
Creating a ZIP Archive in Memory Using System.IO.Compression
...hStodola ZipArchive add checksum at the end of archive to determine corruption or changing (security reasons ) . So until closing archive or disposing it , checksum does not included in stream . I hope explain it clear !
– Amir
May 14 '16 at 10:01
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What is the difference between a thread and a fiber?
...ite loop, no other fiber can run, since you're not yielding.
You can also mix threads and fibers, which gives rise to the problems faced by both. Not recommended, but it can sometimes be the right thing to do if done carefully.
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'Missing recommended icon file - The bundle does not contain an app icon for iPhone / iPod Touch of
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If you get an icon error when submitting an application from Xcode9, or if you cannot see app icon on your simulator as well as a device, just update your cocoapods to the latest version in your project. That issue is a bug in Xcode9 with cocoapods.
There's a new guideline ...
iPhone UITextField - Change placeholder text color
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Since the introduction of attributed strings in UIViews in iOS 6, it's possible to assign a color to the placeholder text like this:
if ([textField respondsToSelector:@selector(setAttributedPlaceholder:)]) {
UIColor *color = [UIColor blackCo...
UITextfield leftView/rightView padding on iOS7
The leftView and rightView views of an UITextField on iOS7 are really close to the textfield border.
27 Answers
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Getting the location from an IP address [duplicate]
I want to retrieve information like the city, state, and country of a visitor from their IP address, so that I can customize my web page according to their location. Is there a good and reliable way to do this in PHP? I am using JavaScript for client-side scripting, PHP for server-side scripting, an...
Are PHP short tags acceptable to use?
...flicts with XML documents are ludicrous, because you probably shouldn't be mixing PHP and XML anyway; and if you are, you should be using PHP to output strings of text. Security should never be an issue, because if you're putting sensitive information like database access credentials inside of templ...
Is there any haskell function to concatenate list with separator?
...m using Strings anyway. I'm still getting used to how Haskell deals with mixed infix and prefix functions/operators, and I prefer bracketing when mixing in case I end up wanting to use $
– Zoey Hewll
Feb 4 '17 at 10:27
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Reading a simple text file
I am trying to read a simple text file in my sample Android Application. I am using the below written code for reading the simple text file.
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