Question

我的UIScrollView没有响应触摸事件，也没有为我的UIViewController调用touchesBegain方法。（另外，我的按钮上的文字在一个上扭曲，而在另一个上没有显示）

在Storyboard中，我将ScrollView添加到UIViewController并将我的UITextFields和UIButtons添加到ScrollView

以下是代码：

#import <UIKit/UIKit.h>

@interface RefineSearchViewController : UIViewController <UITextFieldDelegate, UIScrollViewDelegate>
{
    IBOutlet UIScrollView *scroller;
}

@property (strong, nonatomic) IBOutlet UITextField *nameField;
@property (strong, nonatomic) IBOutlet UITextField *targetField;
@property (strong, nonatomic) IBOutlet UITextField *vendorField;
@property (strong, nonatomic) IBOutlet UITextField *CATField;
@property (strong, nonatomic) IBOutlet UITextField *clonalityField;
@property (strong, nonatomic) IBOutlet UITextField *sourceOrganismField;
-(IBAction) textFieldReturn: (id) sender;

#import "RefineSearchViewController.h"
#import "DBHandler.h"

@interface RefineSearchViewController ()

@end

@implementation RefineSearchViewController

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
    }
    return self;
}

- (void)viewDidLoad
{
    [scroller setScrollEnabled:YES];

    // set the content size to be the size our our whole frame
     //scroller.frame = CGRectMake(74, 261, 620, 354);
    [scroller setContentSize:CGSizeMake(2000, 2000)];
    [scroller setCanCancelContentTouches:NO];
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    self.targetField.delegate = self;
    self.nameField.delegate = self;
    self.vendorField.delegate = self;
    self.clonalityField.delegate = self;
    self.sourceOrganismField.delegate = self;
    self.CATField.delegate = self;
}

-(void) viewWillAppear:(BOOL)animated
{
    self.navigationController.navigationBarHidden = YES;
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
    // If you are going to conduct a refine search
    if ([[segue identifier] isEqualToString:@"Refine"])
    {
        DBHandler *handler = [[DBHandler alloc]init];

        //Run searches on each of the parameter that aren't empty

        NSString *nameParameter = _nameField.text;
        if (![nameParameter isEqualToString:@""])
        {
        [handler search:0 andInput:nameParameter];
        }

        NSString *targetParameter = _targetField.text;
        if(![targetParameter isEqualToString:@""])
        {
            [handler search:1 andInput:targetParameter];
        }

        NSString *vendorParameter = _vendorField.text;
        if (![vendorParameter isEqualToString:@""])
        {
            [handler search:2 andInput:vendorParameter];
        }

        NSString *catParameter = _CATField.text;
        if (![catParameter isEqualToString:@""])
        {
            [handler search:3 andInput:catParameter];
        }

        NSString *clonalityField = _clonalityField.text;
        if (![catParameter isEqualToString:@""])
        {
            [handler search:4 andInput:clonalityField];
        }

        NSString *sourceField = _sourceOrganismField.text;
        if (![sourceField isEqualToString:@""])
        {
            [handler search:5 andInput:sourceField];
        }

        //recursive implementation
        for (int i = 0; i < 6 ; i++)
        {

        }

        //We shouldn't clear the text fields here in my personal opinion because they apply to the search until you return to the homescreen and reset what is the
        //current "working database"
    }

    //if you are going to cancel the refine search, simply go back to the previous screen
    else if ([[segue identifier] isEqualToString:@"Cancel"])
    {
        //Do Nothing
        //but more importantly....
        //....clear Text Fields
        _nameField.text = @"";
        _targetField.text = @"";
        _vendorField.text = @"";
        _CATField.text = @"";
        _clonalityField.text = @"";
        _sourceOrganismField.text = @"";
    }
}

//make that stubborn keyboard go away whenever you touch the background
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    [_nameField resignFirstResponder];
    [_targetField resignFirstResponder];
    [_vendorField resignFirstResponder];
    [_CATField resignFirstResponder];
    [_clonalityField resignFirstResponder];
    [_sourceOrganismField resignFirstResponder];
}

-(IBAction)textFieldReturn:(id)sender
{
    [sender resignFirstResponder];
}

//following code was taken and tweaked from stack overflow
//- (void)textFieldDidBeginEditing:(UITextField *)textField
//{
//    [self animateTextField: textField up: YES];
//    NSLog(@"YO");
//}
//
//
//- (void)textFieldDidEndEditing:(UITextField *)textField
//{
//    [self animateTextField: textField up: NO];
//}
//
//- (void) animateTextField: (UITextField*) textField up: (BOOL) up
//{
//    const int movementDistance = 216; //height of the keyboard
//    const float movementDuration = 0.3f; // duration of the animation
//    
//    int movement = (up ? -movementDistance : movementDistance);
//    
//    [UIView beginAnimations: @"anim" context: nil];
//    [UIView setAnimationBeginsFromCurrentState: YES];
//    [UIView setAnimationDuration: movementDuration];
//    self.view.frame = CGRectOffset(self.view.frame, 0, movement);
//    [UIView commitAnimations];
//}

@end

Answer 1

确保在storyboard中正确设置了scrollView的委托，并设置了scrollView的userInteractionEnabled。

UIScrollView没有响应触摸

1 个答案: