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NSInvocation for Dummies?

... According to Apple's NSInvocation class reference: An NSInvocation is an Objective-C message rendered static, that is, it is an action turned into an object. And, in a little more detail: The concept of messages is central to the o...
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Best way to organize jQuery/JavaScript code (2013) [closed]

...f awesome frameworks around that implement MVC (Model - View - Controller) approaches. My favourite is Backbone/Spine, however, there's also Angular, Yii, ... The list goes on. A Model represents your data. A View represents your mark-up and all the events associated to it A Controller represents...
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Key hash for Android-Facebook app

I'm working on an Android app, in which I want to integrate a Facebook posting feature. I downloaded the Facebook-Android SDK, and I got the readme.md (text file) in there, in which it is mentioned to generate the key hash for Android. How do I generate it? ...
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Sequelize.js: how to use migrations and sync

...k agnostic migration tool for Node.JS to perform pending migrations before app starts. You can get a list of pending/not yet executed migrations like this: umzug.pending().then(function (migrations) { // "migrations" will be an Array with the names of // pending migrations. }); Then execute...
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How to Create a circular progressbar in Android which rotates on it?

...mProgressBarActivity.java: public class CustomProgressBarActivity extends AppCompatActivity { private TextView txtProgress; private ProgressBar progressBar; private int pStatus = 0; private Handler handler = new Handler(); @Override protected void onCreate(Bundle savedInst...
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Modify Address Bar URL in AJAX App to Match Current State

I'm writing an AJAX app, but as the user moves through the app, I'd like the URL in the address bar to update despite the lack of page reloads. Basically, I'd like for them to be able to bookmark at any point and thereby return to the current state. ...
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Dialog to pick image from gallery or from camera

...g a photo. Just show a dialog with two options and upon selection, use the appropriate code. To take picture from camera: Intent takePicture = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); startActivityForResult(takePicture, 0);//zero can be replaced with any action code (called requestCode) To p...
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ERROR ITMS-9000: “Redundant Binary Upload. There already exists a binary upload with build version '

...nect via Xcode 5.1.1 but it is continuously showing that it is loading and app is not getting uploaded. So I have tried uploading with Application Loader but its showing the below error: ...
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Set icon for Android application

How can I set an icon for my Android application? 17 Answers 17 ...
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AngularJS: Service vs provider vs factory

...emo " Hello world " example with factory / service / provider: var myApp = angular.module('myApp', []); //service style, probably the simplest one myApp.service('helloWorldFromService', function() { this.sayHello = function() { return "Hello, World!"; }; }); //factor...