Android Studio Logcat regex expressions for efficient debugging
Logcat provides several default filter options (Verbose, Info, Debug etc) and a simple pattern ma...
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Android Flavor wrapper object
When using multiple flavors in a single Android project, a wrapper such as below is a useful util...
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Bash script to convert Android bundle .aab to .apk, .apks, .zip and ADB device install
In Android Studio, we prepare an App for public release by creating a signed .aab bundle file. Th...
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View Listener to activate feature after N clicks within time limit
The following subclass of View.OnClickListener can be set as a listener to any View. When the use...
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Toast (with custom XML Layout) with variable display time
The native Android Toast has only two options for message duration (SHORT or LONG). Here we defin...
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Extend "Any" object for convenient log method e.g. this.log()
It is convenient to use a logging function that automatically prints the object from which the lo...
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Get observed public holidays list from Google API
There is a useful Google API available to developers who register with the Google Console and obt...
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Logging function with automatic call path/function with CustomDebugStringConvertible
It is convenient to use a static logging function which automatically prints both the values of t...
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Create launch/splash screen with fixed sized image and stretched background color on any device
We demonstrate here how to add a splash screen to your android application. The splash screen con...
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iOS Avoid duplicate view controllers with custom NavigationController
It is possible that duplicate view controllers may be accidently instantiated by the user. This i...
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Cyclic property animator in Native View subclass (e.g. Flashing ImageView)
We show a method by which native View behavior can be overridden and a property changed in a cycl...
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iOS Read and write typed data arrays to/from bundle/local accessible storage (Swift 4.0+)
Read from bundle or local storage Get url of Bundle let url = Bundle.main.url(forResource: filena...
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Android Custom Info Window for GoogleMaps Marker responsive to touch events
When the user clicks on a marker, an info window is expected. Here, we demonstrate how to add a c...
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MapKit Custom callout for annotation with touch response
When the user clicks on a map annotation, a callout window is expected to appear. Here, we demons...
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String extension to show a time period e.g. "16.45 ~ 18.38 (1hr 53 mins)
Convert any time period to a formatted string, which is useful for e.g. journey time displays Suf...
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Add a fitted notification badge to a UIImage
It is common to use a notification badge to alert the user to unread or new features, accessible ...
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UIFont extension for the optimal fitting of text in a fixed size rectangle
Instead of fitting a layout object to contain a text label of fixed size, it is sometimes require...
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A content-wrapping, scrollable multiline UITextView with maximum size in Swift
Conditions Assume the following, common requirements: A UITextView with text appears at center of...
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Measure multiple Fragment/View sizes with Kotlin coroutines
In a complex layout in Android, we need the size of multiple fragments/views. However, in a dynam...
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A auto-fitting custom iOS toolbar with labelled buttons
In iOS 11+, it is possible to provide custom UIBarButtonItems to the Toolbar. The custom CustomTo...
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