CODEWITHSUNDEEP
ios
user3162198
user3162198

Reputation: 1

Can't Change Background of UIButton ios

When a user clicks on UIButton that has background image that i put from storyboard , it will display a UIActionSheet letting the user to choose from the options:

1) Take a picture from camera

2) Picture from gallery photos.

If for example, he chooses to pick a picture from gallery photos, when he selects an image and returns to the view and display the image , i want to change the background image of the UIButton to another one that i want to put it programatically.

Here is the code of the ViewController.h

#import <UIKit/UIKit.h>

@interface ViewController : UIViewController<UIImagePickerControllerDelegate,UINavigationControllerDelegate> {
UIImageView * imageView;
UIToolbar *toolbar ;

}

@property (weak, nonatomic) IBOutlet UIBarButtonItem *ButtonPicture;@property (weak,  nonatomic) IBOutlet UIToolbar *toolbar;

@property (nonatomic, retain) IBOutlet UIImageView * imageView;

- (IBAction)PictureButton:(UIButton *)sender;


@end

Here is the code of ViewController.m

- (IBAction)PictureButton:(UIButton *)sender {   
NSLog(@"Click button take picture in toolbar view 1");

UIActionSheet *actionSheet = [[UIActionSheet alloc] initWithTitle:@"Photo" 
                                                         delegate:self
                                                cancelButtonTitle:@"Cancel"
                                           destructiveButtonTitle:nil
                                                otherButtonTitles:@"Picture From Camera", @"Picture From Gallery", nil];
[actionSheet setTag:1001];
[actionSheet showInView:self.view];
}

-(void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex {
switch (buttonIndex)
{
    case 0: {
        // Take a picture from camera
        UIImagePickerController * picker = [[UIImagePickerController alloc] init];
        picker.delegate = self;
        picker.sourceType = UIImagePickerControllerSourceTypeCamera;
        [self presentModalViewController:picker animated:YES];
    }
    break;
    case 1: {
        // take a picture from gallery photos

        UIImagePickerController * picker = [[UIImagePickerController alloc] init];
        picker.delegate = self;
        picker.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;
        [self.view addSubview:toolbar];
        [self presentModalViewController:picker animated:YES];
    }
    break;
    }

    -(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
    [self dismissViewControllerAnimated:YES completion:nil];
    UIImage *gotImage =
    [info objectForKey:UIImagePickerControllerOriginalImage];
[PictureButton setBackgroundImage:gotImage forState:UIControlStateNormal];

}

When i select an image from Library , i return to the view , i display the image that i selected but the UIBUtton Background won't change to another background. Thanks

Upvotes: 0

Views: 144

Answers (3)

Lakshay21
Lakshay21

Reputation: 1

on tapping which button does your action sheet get called?is it the UIBarButtonItem *ButtonPicture? if yes then set the background image as [ButtonPicture setBackgroundImage:gotImage forState:UIControlStateNormal];

Upvotes: 0

Mani
Mani

Reputation: 17595

This is (IBAction)PictureButton:(UIButton *)sender; method, you have wired up with your storyboard. As same as, you have to wired with UIBarbuttonItam property as. ButtonPicture(not PictureButton). So you can try this.

-(void)changeImage:(UIImage*)newImage
{
      UIImage *configImage = newImage;
      UIButton *btn = [[UIButton alloc] initWithFrame:CGRectMake(0,0, self.ButtonPicture.width, 32)];
      [btn setBackgroundImage:configImage forState:UIControlStateNormal];
      [btn addTarget:self.ButtonPicture.target action:self.ButtonPicture.action       forControlEvents:UIControlEventTouchUpInside];    
      self.ButtonPicture.customView = btn;
}

call this method instead of [PictureButton setBackgroundImage:gotImage forState:UIControlStateNormal];.

Upvotes: 0

Bilal Saifudeen
Bilal Saifudeen

Reputation: 1677

Try this,

[ButtonPicture setBackgroundImage:gotImage forState:UIControlStateNormal barMetrics:UIBarMetricsDefault];

Upvotes: 1

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