selector

Good Day, I am trying to convert an Objective C snippet to Swift. I understand the selector can be translated directly by placing it in a string, but I cannot understand the Objective C signature.: The Objectice C selector (2nd parameter): UIImageWriteToSavedPhotosAlbum(image, self, @selector(image:didFinishSavingWithError:contextInfo:), nil); The target: - (void)image:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo{ My Questions are: 1.Can I simply pass the selector as : UIImageWriteToSavedPhotosAlbum(image, self, "image:didFinishSavingWithError

I'm making a button via code. I have the following line of code to trigger a method when the button is clicked: [imagesButton addTarget:self action:@selector(photoClicked:) forControlEvents:UIControlEventTouchDown ]; The problem is that I can't pass data to the method through the @selector; If the button had a background image name "background.png" how would I go about sending the name of the background image to the method when the button is clicked? This all HAS to be through code. Thanks! -Shredder there must be a way to comment on an answer, but I don't know what it is. Anyway, Gobot above

I have the following ListView, and have followed the answer from this SO Question w/ no luck: Android ListView Selector Color <ListView android:layout_width="fill_parent" android:layout_height="fill_parent" xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/ARListView" android:background="@drawable/transparent_background" android:cacheColorHint="#00000000" android:listSelector="@drawable/ar_selector" android:drawSelectorOnTop="true"> Here is my ar_selector.xml <?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android">

I'm trying to get a selector of the dataTask(with:completionHandler:) method defined in URLSession which uses URLRequest object like below, but getting error as there are two methods with slightly two different params names (overloaded methods - 1. one uses URLRequest object as param and another uses URL) : let dataTaskSelector = #selector(URLSession.dataTask(with: completionHandler:)) I have tried a different approach like below (mentioned in https://github.com/apple/swift-evolution/blob/master/proposals/0022-objc-selectors.md ) but it's also giving same error : let mySelector = #selector(

I have a GridView based calendar. I have the following XML layout with the selector set to null thus android:listSelector="@null" in accordance with advise I have got from this site. Now I am getting a few pixels wide strip to the right of the GridView. Why? I have tried everything I can but to avail. Here is my XML layout: <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="match_parent" android:orientation="vertical" > <GridView android:id="@+id/calendar" android:layout_width="fill_parent" android:layout_height=

I'm trying to change a TextView style based on its state. My styles.xml contains: <style name="text_normal_ops"> <item name="android:gravity">left</item> <item name="android:textColor">@color/text_usual_color</item> <item name="android:textStyle">bold</item> </style> <style name="text_normal_ops_pressed"> <item name="android:gravity">left</item> <item name="android:textColor">@color/text_pressed</item> <item name="android:textStyle">bold</item> </style> My selector ( text_ops.xml )is defined as: <selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:state_pressed=