下面网站有详细介绍
http://www.markj.net/iphone-uiimage-pixel-color/ 另外一个人的博客也有sample code，有空研究看看。
http://johnnytrops.com/blog/wp/?p=306
Continue reading 颜色选取器代码 iPhone .
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- (void)viewDidLoad {
[super viewDidLoad];
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Enter Name Here" message:@"this gets covered!" delegate:self cancelButtonTitle:@"Dismiss" otherButtonTitles:@"OK!", nil];
UITextField *myTextField = [[UITextField alloc] initWithFrame:CGRectMake(12, 45, 260, 25)];
CGAffineTransform myTransform = CGAffineTransformMakeTranslation(0, 60);
[alert setTransform:myTransform];
myTextField.tag= 100;
[myTextField setBackgroundColor:[UIColor whiteColor]];
[alert addSubview:myTextField];
[alert show];
[alert release];
}
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
UITextField *field = (UITextField *)[alertView viewWithTag:100];
NSLog(@"%@",field.text);
//[self ShowLoginController];
}
## dot h file
@interface TextFieldInAlertViewController : UIViewController <UIAlertViewDelegate>{
}
@end
Continue reading UIAlertView视图中添加UITextField .
