大约有 13,340 项符合查询结果(耗时:0.0298秒) [XML]

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Handling applicationDidBecomeActive - “How can a view controller respond to the app becoming Active?

...tion: lazy var didBecomeActive: (Notification) -> Void = { [weak self] _ in // Do stuff } If you require the actual notification be included, just replace the _ with notification. Next, we set up the notification to observe for the app becoming active. func setupObserver() { _ = Not...
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Android emulator and virtualbox cannot run at same time

... Removing the kvm kernel modules (using 'sudo rmmod kvm_intel kvm') makes it possible to run the Virtualbox and the Android emulator at the same time but the performance of the Android emulator in such a setup is extremely bad. If possible it is better to shutdown the Virtualbox ...
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How to enumerate an enum with String type?

... at your own risk. Here is the code: func iterateEnum<T: Hashable>(_: T.Type) -> GeneratorOf<T> { var cast: (Int -> T)! switch sizeof(T) { case 0: return GeneratorOf(GeneratorOfOne(unsafeBitCast((), T.self))) case 1: cast = { unsafeBitCast(UInt8(truncating...
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Is there a way to auto expand objects in Chrome Dev Tools?

...creatively (ab)using console.group: expandedLog = (function(){ var MAX_DEPTH = 100; return function(item, depth){ depth = depth || 0; if (depth > MAX_DEPTH ) { console.log(item); return; } if (_.isObject(item)) { _.e...
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Should switch statements always contain a default clause?

...an return within the enum case rather than break. enum SomeEnum { ENUM_1, ENUM_2, // More ENUM values may be added in future }; int foo(SomeEnum value) { switch (value) { case ENUM_1: return 1; case ENUM_2: return 2; } // handle invalid values he...
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jQuery event handlers always execute in order they were bound - any way around this? [duplicate]

...st parameter, and a key ("events" for us) as the second parameter. jQuery._data(<DOM element>, "events"); So here's the modified code for jQuery 1.8. // [name] is the name of the event "click", "mouseover", .. // same as you'd pass it to bind() // [fn] is the handler function $.fn.bindFir...
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What is the difference between user and kernel modes in operating systems?

...e the state and returns to user mode. http://en.wikibooks.org/wiki/Windows_Programming/User_Mode_vs_Kernel_Mode http://tldp.org/HOWTO/KernelAnalysis-HOWTO-3.html http://en.wikipedia.org/wiki/Direct_memory_access http://en.wikipedia.org/wiki/Interrupt_request ...
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Why can't I see the “Report Data” window when creating reports?

...wered Dec 6 '11 at 19:31 matthew_360matthew_360 5,46366 gold badges2626 silver badges3939 bronze badges ...
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How to intercept touches events on a MKMapView or UIWebView objects?

...izer(target: nil, action: nil) tapInterceptor.touchesBeganCallback = { _, _ in self.lockedOnUserLocation = false } mapView.addGestureRecognizer(tapInterceptor) WildCardGestureRecognizer.swift import UIKit.UIGestureRecognizerSubclass class WildCardGestureRecognizer: UIGestureRecognizer { ...
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iOS - Dismiss keyboard when touching outside of UITextField

...TapGestureRecognizer(target: self, action: #selector(self.dismissKeyboard (_:))) self.view.addGestureRecognizer(tapGesture) For dismissKeyboard @objc func dismissKeyboard (_ sender: UITapGestureRecognizer) { aTextField.resignFirstResponder() } ...