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POhow to change a UIButton's background using a alert
 

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  1. POhow to change a UIButton's background using a alert
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    <p>i am currently developing an app that uses an <code>UIAlertview</code> to change buttons images. i have tried this but it does not seem to be working! please help in this matter! Rafee </p> <pre><code>- (IBAction)changebackground:(id)sender { UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"The Title" message:@"The Message" delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:@"normal",@"for girly girls",@"for boys!", nil]; [alert show]; } -(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex { if (buttonIndex == 1) { UIImage *img = [UIImage imageNamed:@"img1.jpg"]; [background setImage:img]; UIImage *buttonImage = [UIImage imageNamed:@"black sharp.png"]; [asharp setImage:buttonImage forState:UIControlStateNormal]; [self.view addSubview:asharp]; UIImage *buttonImage2 = [UIImage imageNamed:@"black sharp.png"]; [csharp setImage:buttonImage2 forState:UIControlStateNormal]; [self.view addSubview:csharp]; UIImage *buttonImage3 = [UIImage imageNamed:@"black sharp.png"]; [dsharp setImage:buttonImage3 forState:UIControlStateNormal]; [self.view addSubview:dsharp]; UIImage *buttonImage4 = [UIImage imageNamed:@"black sharp.png"]; [fsharp setImage:buttonImage4 forState:UIControlStateNormal]; [self.view addSubview:fsharp]; UIImage *buttonImage5 = [UIImage imageNamed:@"black sharp.png"]; [gsharp setImage:buttonImage5 forState:UIControlStateNormal]; [self.view addSubview:gsharp]; UIImage *buttonImage6 = [UIImage imageNamed:@"white key.png"]; [middlec setImage:buttonImage6 forState:UIControlStateNormal]; [self.view addSubview:middlec]; UIImage *buttonImage7 = [UIImage imageNamed:@"white key.png"]; [d setImage:buttonImage7 forState:UIControlStateNormal]; [self.view addSubview:d]; UIImage *buttonImage8 = [UIImage imageNamed:@"white key.png"]; [en setImage:buttonImage8 forState:UIControlStateNormal]; [self.view addSubview:en]; UIImage *buttonImage9 = [UIImage imageNamed:@"white key.png"]; [f setImage:buttonImage9 forState:UIControlStateNormal]; [self.view addSubview:f]; UIImage *buttonImage10 = [UIImage imageNamed:@"white key.png"]; [g setImage:buttonImage10 forState:UIControlStateNormal]; [self.view addSubview:g]; UIImage *buttonImage11 = [UIImage imageNamed:@"white key.png"]; [a setImage:buttonImage11 forState:UIControlStateNormal]; [self.view addSubview:a]; UIImage *buttonImage12 = [UIImage imageNamed:@"white key.png"]; [b setImage:buttonImage12 forState:UIControlStateNormal]; [self.view addSubview:b]; } if (buttonIndex == 2) { UIImage *img = [UIImage imageNamed:@"img2.jpg"]; [background setImage:img]; UIImage *buttonImage = [UIImage imageNamed:@"green sharp.png"]; [asharp setImage:buttonImage forState:UIControlStateNormal]; [self.view addSubview:asharp]; UIImage *buttonImage2 = [UIImage imageNamed:@"green sharp.png"]; [csharp setImage:buttonImage2 forState:UIControlStateNormal]; [self.view addSubview:csharp]; UIImage *buttonImage3 = [UIImage imageNamed:@"green sharp.png"]; [dsharp setImage:buttonImage3 forState:UIControlStateNormal]; [self.view addSubview:dsharp]; UIImage *buttonImage4 = [UIImage imageNamed:@"green sharp.png"]; [fsharp setImage:buttonImage4 forState:UIControlStateNormal]; [self.view addSubview:fsharp]; UIImage *buttonImage5 = [UIImage imageNamed:@"green sharp.png"]; [gsharp setImage:buttonImage5 forState:UIControlStateNormal]; [self.view addSubview:gsharp]; UIImage *buttonImage6 = [UIImage imageNamed:@"pink key.png"]; [middlec setImage:buttonImage6 forState:UIControlStateNormal]; [self.view addSubview:middlec]; UIImage *buttonImage7 = [UIImage imageNamed:@"pink key.png"]; [d setImage:buttonImage7 forState:UIControlStateNormal]; [self.view addSubview:d]; UIImage *buttonImage8 = [UIImage imageNamed:@"pink key.png"]; [en setImage:buttonImage8 forState:UIControlStateNormal]; [self.view addSubview:en]; UIImage *buttonImage9 = [UIImage imageNamed:@"pink key.png"]; [f setImage:buttonImage9 forState:UIControlStateNormal]; [self.view addSubview:f]; UIImage *buttonImage10 = [UIImage imageNamed:@"pink key.png"]; [g setImage:buttonImage10 forState:UIControlStateNormal]; [self.view addSubview:g]; UIImage *buttonImage11 = [UIImage imageNamed:@"pink key.png"]; [a setImage:buttonImage11 forState:UIControlStateNormal]; [self.view addSubview:a]; UIImage *buttonImage12 = [UIImage imageNamed:@"pink key.png"]; [b setImage:buttonImage12 forState:UIControlStateNormal]; [self.view addSubview:b]; } if (buttonIndex == 3) { UIImage *img = [UIImage imageNamed:@"img3.jpg"]; [background setImage:img]; UIImage *buttonImage = [UIImage imageNamed:@"orange sharp.png"]; [asharp setImage:buttonImage forState:UIControlStateNormal]; [self.view addSubview:asharp]; UIImage *buttonImage2 = [UIImage imageNamed:@"orange sharp.png"]; [csharp setImage:buttonImage2 forState:UIControlStateNormal]; [self.view addSubview:csharp]; UIImage *buttonImage3 = [UIImage imageNamed:@"orange sharp.png"]; [dsharp setImage:buttonImage3 forState:UIControlStateNormal]; [self.view addSubview:dsharp]; UIImage *buttonImage4 = [UIImage imageNamed:@"orange sharp.png"]; [fsharp setImage:buttonImage4 forState:UIControlStateNormal]; [self.view addSubview:fsharp]; UIImage *buttonImage5 = [UIImage imageNamed:@"orange sharp.png"]; [gsharp setImage:buttonImage5 forState:UIControlStateNormal]; [self.view addSubview:gsharp]; UIImage *buttonImage6 = [UIImage imageNamed:@"silver key.png"]; [middlec setImage:buttonImage6 forState:UIControlStateNormal]; [self.view addSubview:middlec]; UIImage *buttonImage7 = [UIImage imageNamed:@"silver key.png"]; [d setImage:buttonImage7 forState:UIControlStateNormal]; [self.view addSubview:d]; UIImage *buttonImage8 = [UIImage imageNamed:@"silver key.png"]; [en setImage:buttonImage8 forState:UIControlStateNormal]; [self.view addSubview:en]; UIImage *buttonImage9 = [UIImage imageNamed:@"silver key.png"]; [f setImage:buttonImage9 forState:UIControlStateNormal]; [self.view addSubview:f]; UIImage *buttonImage10 = [UIImage imageNamed:@"silver key.png"]; [g setImage:buttonImage10 forState:UIControlStateNormal]; [self.view addSubview:g]; UIImage *buttonImage11 = [UIImage imageNamed:@"silver key.png"]; [a setImage:buttonImage11 forState:UIControlStateNormal]; [self.view addSubview:a]; UIImage *buttonImage12 = [UIImage imageNamed:@"silver key.png"]; [b setImage:buttonImage12 forState:UIControlStateNormal]; [self.view addSubview:b]; } } </code></pre>
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    1. COHow are you setting up the UIButton? I don't believe you can change backgrounds unless you set it up as Custom
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