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Cleanest way to write retry logic?

...eption handling mechanism. Having said that, here's a lambda-based retry wrapper that you can use with any method. I chose to factor the number of retries and the retry timeout out as parameters for a bit more flexibility: public static class Retry { public static void Do( Action action...
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How to lazy load images in ListView in Android

... Here's what I created to hold the images that my app is currently displaying. Please note that the "Log" object in use here is my custom wrapper around the final Log class inside Android. package com.wilson.android.library; /* Licensed to the Apache Software Foundation (...
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How do I properly clean up Excel interop objects?

I'm using the Excel interop in C# ( ApplicationClass ) and have placed the following code in my finally clause: 41 Answers ...
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Ruby on Rails: Where to define global constants?

I'm just getting started with my first Ruby on Rails webapp. I've got a bunch of different models, views, controllers, and so on. ...
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Should I compile with /MD or /MT?

...aries that have been built with different runtime options, /MT in the main application tends to cause conflicts much more often than /MD (because you'll run into trouble if the C runtime is statically-linked multiple times, especially if they are different versions). ...
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What to use instead of “addPreferencesFromResource” in a PreferenceActivity?

...ative method is provided in the method's description because the preferred approach (as of API level 11) is to instantiate PreferenceFragment objects to load your preferences from a resource file. See the sample code here: PreferenceActivity ...
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How to check for an active Internet connection on iOS or macOS?

...nswers below are synchronous so be careful otherwise you'll freeze up your app. Swift 1) Install via CocoaPods or Carthage: https://github.com/ashleymills/Reachability.swift 2) Test reachability via closures let reachability = Reachability()! reachability.whenReachable = { reachability in ...
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How to change progress bar's progress color in Android

I'm using an horizontal progress bar in my Android application, and I want to change its progress color (which is Yellow by default). How can I do it using code (not XML)? ...
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Safe characters for friendly url [closed]

...aid, do not use it! Here is another weird case on IIS (don't know if this happens on other Web Servers): if it is at the end of your URL you'll most likely get 404 error (it'll try to search for [/pagename]. page) – nikib3ro Jun 1 '12 at 19:27 ...
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AsyncTask Android example

...class edited below with all suggestions to save confusion. import android.app.Activity; import android.os.AsyncTask; import android.os.Bundle; import android.provider.Settings.System; import android.view.View; import android.widget.Button; import android.widget.TextView; import android.view.View.On...