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Is it possible to determine whether ViewController is presented as Modal?
...
Since modalViewController has been deprecated in iOS 6, here's a version that works for iOS 5+ and that compiles without warnings.
Objective-C:
- (BOOL)isModal {
return self.presentingViewController.presentedViewController == self
|| (self.navigationController !...
What is the difference between gravity and layout_gravity in Android?
... of all child views of a container; use android:layout_gravity or setLayoutParams() to control gravity of an individual view in a container.
Long story: to control gravity in a linear layout container such as LinearLayout or RadioGroup, there are two approaches:
1) To control the gravity of ALL ch...
Generate a Hash from string in Javascript
.../vaiorabbit/5657561
* Ref.: http://isthe.com/chongo/tech/comp/fnv/
*
* @param {string} str the input value
* @param {boolean} [asString=false] set to true to return the hash value as
* 8-digit hex string instead of an integer
* @param {integer} [seed] optionally pass the hash of the previ...
Resolve promises one after another (i.e. in sequence)?
...f the order matters, you can use Promise.each instead and omit concurrency param
readAll.then(function(allFileContents){
// do stuff to read files.
});
Although there is really no reason not to use async await today.
...
How to take a screenshot programmatically on iOS
...pondsToSelector:@selector(scale)]) {
UIGraphicsBeginImageContextWithOptions(self.window.bounds.size, NO, [UIScreen mainScreen].scale);
} else {
UIGraphicsBeginImageContext(self.window.bounds.size);
}
[self.window.layer renderInContext:UIGraphicsGetCurrentContext()];
UIImage *image = UIGraph...
Detect rotation of Android phone in the browser with JavaScript
I know that in Safari on an iPhone you can detect the screen's orientation and change of orientation by listening for the onorientationchange event and querying window.orientation for the angle.
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How to access a mobile's camera from a web app?
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In iPhone iOS6 and from Android ICS onwards, HTML5 has the following tag which allows you to take pictures from your device:
<input type="file" accept="image/*" capture="camera">
Capture can take values like camera, camcorder...
Removing path and extension from filename in powershell
...aths to files. I'd like to save just the filename, without the file extension and the leading path. So from this:
12 Answ...
How can I scan barcodes on iOS?
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We produced the 'Barcodes' application for the iPhone. It can decode QR Codes. The source code is available from the zxing project; specifically, you want to take a look at the iPhone client and the partial C++ port of the core library. The port is a little ol...
How to check if an app is installed from a web-page on an iPhone?
...edirect an iPhone to the app-store if the iPhone does not have the application installed, but if the iPhone has the app installed I want it to open the application.
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