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LoaderManager does not accept 'this'

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Okay, I surrender. I cannot figure it out. I'm following a Udacity course on Android Basics and need to figure out how to load data using a Loader. However, when I use the following line, the 'this' is highlighted in red and showing the following error: Wrong 3rd argument type. Found 'com.example.carl.latestnews.MainActivity', required: 'android.app.LoaderManager.LoaderCallbacks<java.lang.Object> I've googled, stacked and tried suggestion I've found. I've tried creating an inner class which implements the call backs. I've hit a brickwall and I'm sat here scratching my head trying to figure out

get parentNode of clicked element in plain JS

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I need to get the parentNode of a clicked element in plain JS (no jQuery or other frameworks) I am currently using document.getElementById("item_click") but I want to change id="item_click" to class="item_click" so I can use multiple boxes. I just don't know how to integrate this in the script Here's a Fiddle <<< play with it HTML <div class="item"> <div class="item-tester" > <div class="item-icon"></div> <div class="item-title">Item Title</div> </div> <div id="item_click" onmousedown="new_class(event)" onmouseup="revert_class(event)" onmouseout="revert_class(event)"></div> </div> JS function

how to get to the value of manipulated dom element using _this_ Jeditable?

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This is a Continuation of Jeditable: how to set parameters based on dom element attributes Please respond here.. this is my 'real' account.. I'm trying to assign different parameter values to different divs on which I have enabled the jQuery plugin 'Jeditable'. I can't get it to work, I'm sure its something simple.. but I can't figure it out.. How do I acheive it? Given the following DOM element: <div class="editme" id="theone" rel="test"></div> These various snippets produce the following dafault placeholder texts for the above empty div: $('.editme').editable('savedata.php',{ placeholder :

javascript object literal - nested functions and the “this” keyword

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问题 In the example below, when functionA() is invoked, the this keyword refers to the containing object, so I can access its properties (e.g. theValue ) My question: How do I refer to properties of myObj from within the nested functionB() ? var myObj = { theValue: "The rain in Spain", functionA: function() { alert(this.theValue); }, moreFunctions: { functionB: function() { alert(????.theValue); } } } myObj.functionA(); myObj.moreFunctions.functionB(); Thanks in advance. 回答1: Immediate invocation

What is the context of an anonymous function?

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I have code like this: function demo() { this.val=5; function() { this.val=7; }(); } Now when I give execute this code in the firefox or chrome console it gives a syntax error. I don't understand why this is an error because I have read that javascript functions are objects so when I call the anonymous function, inside it this points to function demo and should change the val to 7 , so if I do var x=new demo(); x.val; //should give 7 but when I do this function demo() { this.val=5; var f=function() { this.val=7; }(); } window.val; // gives 7 I don't understand if functions are objects then why

Why this is not this?

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I just wrote this piece of code to represent this error that is killing me (Grrr!) I wonder why when I get error: method undefined I have checked in Safari and this variable inside parserDidStart() method is not of type EpisodeController it is of type EpisodeFeedParser why is this? <html> <head> <script type="text/javascript"> var EpisodeFeedParser = function(url){ this.url = url; this.didStartCallback = null; }; EpisodeFeedParser.prototype.parse = function(doc){ this.didStartCallback(this); }; var EpisodeController = function(){ this.episodes = new Array(); this.parser = null; //lazy };

Way to execute jQuery member functions inside setTimeout without closure?

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I was trying to do something along these lines: setTimeout($('#element').hide,3000); which seems simple enough, but it is crippled by the "this" problem . I want to find a way to just pass the actual function as a parameter, without wrapping it in another function , e.g. I do not want to do this: setTimeout(function(){$('#element').hide();},3000); What I've tried: setTimeout($('#element').hide,3000); setTimeout($('#element').hide.apply(document),3000); /* jQuery docs say that document is the default context */ setTimeout($('#element',document).hide,3000); setTimeout($(document).find('#element'

JavaScript losing “this” object reference with private/public properties

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问题 I have the following error when running the page below: "this.testpublic is not a function" test = function() { var testprivate = function() { this.testpublic(); } this.testpublic = function() { console.log('test'); } testprivate(); } new test(); Apparently when testprivate is called, "this" starts pointing to "window" instead of the object. Shouldn't JavaScript preserve "this" context when within the same object? 回答1: You need to manipulate the context when calling testprivate. You can use

Explanation asked about the value of 'this' in Javascript [duplicate]

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问题 This question already has answers here : How does the “this” keyword work? (22 answers) Closed 5 years ago . I have this class in Javascript: return function (settings) { var items = [], formHelper = new FormHelper(items), that = this; this.currentItem; this.initialize = function () { settings.listFn().then(function (response) { angular.copy(response, items); if (response.length > 0) { that.setCurrentItem(response[0]); } }); } } In the initialize method, I use a promise. When this promised is

How to get List<List<String>> with this keyword?

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问题 I have fragment where I get the string in List and send it as Bundle to the activity. For Example I get a string and and send it to an activity by following way: public class ViewPagerAdapter extends FragmentStatePagerAdapter { private CharSequence contentTitle[]; public ViewPagerAdapter(Response<album> response) { List<String> listcontentTitle = new ArrayList<>(); List<List<String>> latest_list = new ArrayList<>(); List<String> latestdate = new ArrayList<>(); List<String> latestcomment = new