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POHow to pass a UIscrollview to be used by delegate class
 

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  1. POHow to pass a UIscrollview to be used by delegate class
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    <p>I am not new to delegates but I AM new to the syntax to create a delegate in its own class.</p> <p>Essentially I have a PickerView delegate that I have created in its own class. I want to be able to put the selection text into a textbox in a UIScrollView that has been declared in my ViewController. However I don't know the syntax to show the delegate the view. Here are the .h and .m files of the delegate. If there are any other missing components I need to have my ViewController see my delegate that I do not have, please let me know as well. The error is in the didSelectRow method.</p> <p>RadioPickerDelegate.h</p> <pre><code> #import &lt;Foundation/Foundation.h&gt; @class MissionInputViewController; @interface RadioPickerDelegate : NSObject&lt;UITextFieldDelegate&gt;{ NSArray *radioOptions; } @property (nonatomic, retain) NSArray *radioOptions; @end </code></pre> <p>RadioPickerDelegate.M</p> <pre><code>#import "RadioPickerDelegate.h" #import "MissionInputViewController.h" @implementation RadioPickerDelegate @synthesize radioOptions; - (void)pickerView:(UIPickerView *)pickerView didSelectRow: (NSInteger)row inComponent:(NSInteger)component { // Handle the selection UITextField *textField = (UITextField *)[inputsView viewWithTag:pickerView.tag]; textField.text = [radioOptions objectAtIndex:row]; //The error is at the inputsView value. That is my UIScrollView from the view controller } // tell the picker how many rows are available for a given component - (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component { return 2; } // tell the picker how many components it will have - (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView { return 1; } // tell the picker the title for a given component - (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component { radioOptions = [[NSArray alloc] initWithObjects: @"Yes", @"No"]; return [radioOptions objectAtIndex:row]; } // tell the picker the width of each row for a given component - (CGFloat)pickerView:(UIPickerView *)pickerView widthForComponent:(NSInteger)component { int sectionWidth = 200; return sectionWidth; } @end </code></pre> <p>Basically I want to create a PickerView in my ViewController and have it use this delegate. Then this delegate must update a textfield in a UIScrollView in my ViewController. I need to somehow have this delegate see/use that UIScrollView(inputsView). </p> <p>Thanks</p>
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    1. USJesse Durham
    1. USJesse Durham
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    1. COwhere you have defined `inputsView`???
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      1. POHow to pass a UIscrollview to be used by delegate class
      1. USInder Kumar Rathore
    2. COI haven't. Which is obviously the issue. I don't know how. If I just create a UIScrollView varible with the name inputsView.. that won't be the same view that I want to use.
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      1. POHow to pass a UIscrollview to be used by delegate class
      1. USJesse Durham
    3. COwhere is you `UIScrollView` defined and where have you created the object of the `RadioPickerDelegate` class
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      1. POHow to pass a UIscrollview to be used by delegate class
      1. USInder Kumar Rathore
 

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