CODEWITHSUNDEEP
iosobjective-cuibuttonuipickerviewibaction
Daljeet
Daljeet

Reputation: 1595

Change image of UIButton on select or unselect

I want in my iOS app user can select some field on clicking the UIButton.

I want when user selects the field on click of UIButton,image of button should change and open my MMPickerView and when user clicks again the UIButton should get unselected and display previous image in UIButton and do not open MMPickerview at this time.

This is my code:

 - (IBAction)showPickerViewButtonPressed:(id)sender {
      if( (_button.selected = !_button.selected))
      {
           UIImage *bimage=[UIImage imageNamed: @"play.jpg"];
           [_button setImage:bimage forState:UIControlStateNormal];
      } 
      else
      {
           [MMPickerView showPickerViewInView:self.view
                       withStrings:_stringsArray
                       withOptions:@{MMbackgroundColor: [UIColor blackColor],
                                     MMtextColor: [UIColor whiteColor],
                                     MMtoolbarColor: [UIColor blackColor],
                                     MMbuttonColor: [UIColor whiteColor],
                                     MMfont: [UIFont systemFontOfSize:18],
                                     MMvalueY: @3,
                                     MMselectedObject:_selectedString}
                        completion:^(NSString *selectedString) {

                            _label.text = selectedString;
                            _selectedString = selectedString;
             }];
         }
   }

Upvotes: 2

Views: 2954

Answers (5)

Quiet Islet
Quiet Islet

Reputation: 536

Swift 4

add this where button is declared

let bimage = UIImage(named: "play_select.jpg") button.setImage(bimage, for: .selected) button.setImage(bimage, for: .highlighted)

Upvotes: 0

Ramesh Muthe
Ramesh Muthe

Reputation: 811

For setting image to the button use the setbackground image instead of setimage

[<buttoninstane> setBackgroundImage:<#(UIImage *)#> forState:UIControlStateNormal];
[<buttoninstane> setBackgroundImage:<#(UIImage *)#> forState:UIControlStateSelected];

Write the above code where the button is declared

And in the button action use the below edited code

    - (IBAction)showPickerViewButtonPressed:(id)sender {
        if(_button.selected ){
[_button setSelected:NO];
          }
      else{
[_button setSelected:YES];
           [MMPickerView showPickerViewInView:self.view
                   withStrings:_stringsArray
                   withOptions:@{MMbackgroundColor: [UIColor blackColor],
                                 MMtextColor: [UIColor whiteColor],
                                 MMtoolbarColor: [UIColor blackColor],
                                 MMbuttonColor: [UIColor whiteColor],
                                 MMfont: [UIFont systemFontOfSize:18],
                                 MMvalueY: @3,
                                 MMselectedObject:_selectedString}
                    completion:^(NSString *selectedString) {

                        _label.text = selectedString;
                        _selectedString = selectedString;
                    }];
                }
             }

Upvotes: 1

Mayank Jain
Mayank Jain

Reputation: 5754

I guess you are not changing button's state. Try this...

- (IBAction)showPickerViewButtonPressed:(id)sender 
{
   if ([_button isSelected])
   {
      _button.selected=NO;
   } 
   else
   {
      _button.selected=YES; // change button's state
           [MMPickerView showPickerViewInView:self.view
                   withStrings:_stringsArray
                   withOptions:@{MMbackgroundColor: [UIColor blackColor],
                                 MMtextColor: [UIColor whiteColor],
                                 MMtoolbarColor: [UIColor blackColor],
                                 MMbuttonColor: [UIColor whiteColor],
                                 MMfont: [UIFont systemFontOfSize:18],
                                 MMvalueY: @3,
                                 MMselectedObject:_selectedString}
                    completion:^(NSString *selectedString) {

                        _label.text = selectedString;
                        _selectedString = selectedString;
                     //    _button.selected=YES;  change button's state here If you want to change state after completion.
                    }];
   }
}

And write this code where you declared your button.

  UIImage *bSelectedimage=[UIImage imageNamed: @"your image name for selected state"]; 
  UIImage *bimage=[UIImage imageNamed: @"your image name for default state"]; 
 [_button setImage:bSelectedimage forState:UIControlStateSelected];
 [_button setImage:bimage forState:UIControlStateNormal];

Upvotes: 2

wtlucky
wtlucky

Reputation: 11

To set different image in different button status use - (void)setImage:(UIImage *)image forState:(UIControlState)state;

In your code the if statement (_button.selected = !_button.selected) will always be true， so the else part will never run.

Upvotes: 1

Mini
Mini

Reputation: 213

UIImage *bimage=[UIImage imageNamed: @"play_select.jpg"]; [_button setImage:bimage forState:UIControlStateSelected]; [_button setImage:bimage forState:UIControlStateHighlighted];

where button is declared

Upvotes: 3

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