selector

Custom class to create an Alert with Buttons. How to add a completition handler?

由 好久不见. 提交于 2019-12-12 03:38:16
问题 I was trying to create a custom alert and I am getting mad trying to implement a completition handler on the buttons. I have tried a few things, the last, create func array to pass in the selector addTarget function of the UIButton, but not working. (where the ****** are) The issue: "Argument of #selector does no refer to @obc method, property or initializer" The difficult coding part I can't do is to configure the selector with some code I receive from my view controller where I create an

Including protocol function in tapGesture action selector - iOS Swift

由 故事扮演 提交于 2019-12-12 02:53:51
问题 I have a class (FilterBar.swift) and a viewcontroller. the viewcontroller calls the class to populate a scrollView object with list of images and each image has a tapGestureRecognizer added to it as follows: let tapGesture = UITapGestureRecognizer( target: imgView, action: Selector("filterClicked:")); tapGesture.numberOfTapsRequired = 1; tapGesture.numberOfTouchesRequired = 1; imgView.addGestureRecognizer(tapGesture); and i have a function also in FilterBar as follows: @objc func

Select a Tag with a Selector from a Text Variable using jQuery

由 好久不见. 提交于 2019-12-12 02:31:12
问题 I have a string which contains text and some <a> tags in it; I want to know how I can select a tag from the variable and loop it. I tried the following but it didn't work: var text = `some string here with <a href="#link">http:something.com</a> more string and more links also`; $('a', text).each(function() { var string = $(this).html(); $(this).html(string.substring(0, length-1)+(string.length > length ? end : '')); }); 回答1: You need to wrap the text in a div (or other element) then find() it

populating checkboxes based on dropdown value selection

由 倖福魔咒の 提交于 2019-12-12 02:28:23
问题 I was wondering if there is possibility to change the status of a checkbox to checked, based on a dropdown value selector. I already managed to populate checkboxes based on radio button selection, but how would one do it for a dropdown list? Dropdown is here: <select class="form-dropdown" style="width:150px" id="input_12" name="q12_broj_sati_dropdown"> <option value=""> Odaberite broj sati </option> <option calcValue="240" value="4h" id="4h"> 4h </option> <option calcValue="300" value="5h" id

ListFragment: highlight selected row

由 心已入冬 提交于 2019-12-12 02:22:24
问题 I am using ListFrament and I want to highlight selected rows. My selector: <?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:state_pressed="true" android:drawable="@color/gold" /> <item android:state_selected="true" android:drawable="@color/plum" /> <item android:drawable="@color/medium_green" /> </selector> The code in my ListFragment: in onCreateActivity: this.getListView().setChoiceMode(ListView.CHOICE_MODE_SINGLE);

jQuery Tools: Tooltip, jQuery reference to “this” attribute

由 依然范特西╮ 提交于 2019-12-12 01:13:48
问题 I'm implementing a Tooltip for cells within table and I need to be able to grab the target's data-message attribute. $("#pricing_plans_table .sku_tooltip").tooltip({ // each trashcan image works as a trigger tip: '#' + $(this).attr('data-message'), // move tooltip a little bit to the right offset: [0, 15], // there is no delay when the mouse is moved away from the trigger delay: 0 }); That doesn't work. I get "Cannot find tooltip for [object Object]" ... I'm not quite sure how to reference

How to call an object's method from a selector (from a string) and get the returning value of that method (no matter what type is)?

由 别说谁变了你拦得住时间么 提交于 2019-12-11 22:02:32
问题 Ok, here's what I have: SEL propertySelector = NSSelectorFromString(keyPath); if ([obj respondsToSelector:propertySelector]){ id propertyValue = [obj performSelector:propertySelector]; } So, the keyPath is a NSString and it's used to pass the string name of a method. After that, I create a @selector from that string using NSSelectorFromString() and I check if the object ( obj ) responds to that selector. But now here's the problem, I want to get the returning value of the method that I want

nth-child selector in css

由 两盒软妹~` 提交于 2019-12-11 19:59:00
问题 i am curious to know how the nth-child css selector works. I was expecting the following code to change the background color for the 3rd element, that is "The third paragraph". However, when I run this code, the 2nd element is getting selected and "The second paragraph" has a changed background color. <html> <head> <style> p:nth-child(3) { background: #ff0000; } </style> </head> <body> <h1>This is a heading</h1> <p>The first paragraph.</p> <p>The second paragraph.</p> <p>The third paragraph.<

How to pass a block as selector with param to performSelector:withObject:?

由 做~自己de王妃 提交于 2019-12-11 18:43:50
问题 Is it possible to create a block variable as selector accepting parameters, and to pass it to performSelector:withObject:? Currently, writing some tests and want to write a self contained method with all related checking. Need to pass a block, receive the param in it and do some checking in that block. I'm looking for something like: ... SEL blockAsSelector = ^{(NSString *param){NSLog(@"Passed param = %@", param);}} [self performSelector:blockAsSelector withObject

several controls in one with drawable background (gradient)

由 别来无恙 提交于 2019-12-11 18:31:48
问题 Hi I am trying to accomplish the following: I have a control that supposed to render 3 android standard controls: imageview and a textview. I am trying to wrap them up in one control with gradient background , so it looks like one button. Here is what I tried: in the layout file for the control I added a button <Button android:id="@+id/btnCustomButton" android:layout_width="214dp" android:drawable="@drawable/custom_button" android:background="@drawable/custom_button_background" android
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