5

ボタンを作成し、ユーザーがクリックしたときにその色を変更したいと思います。「setimagebackground...forstate ...」というオプションが表示されましたが、背景色を変更するための他のオプションはありません。viewdidloadのyボタンの値を変更しましたが、「settint color：[uicolorredcolor]」を使用しても何も起こりません。どうすれば修正できますか？これが私のコードです：

    button1.layer.borderColor = [[UIColor purpleColor]CGColor];
    button1.layer.cornerRadius = 8.0f;
    button1.layer.masksToBounds = YES;
    button1.layer.borderWidth = 1.0f; 
    [button1.tintColor = [UIColor redColor]CGColor];
    [button1 setTintColor:[UIColor blueColor]];
    [button1 setTitleColor:[UIColor cyanColor] forState:UIControlStateNormal];
    [button1 setTitleColor:[UIColor redColor] forState:UIControlStateHighlighted];
    [button1 setTintColor:[UIColor redColor]];

ありがとう！

4

1 に答える 1

4

画像あり:

[button1 setBackgroundImage:[UIImage imageNamed:@"redButton.png"]];

画像なし:

[button1 setBackgroundColor:[UIColor redColor] ];

これにより、丸い境界線を取得できます。

     CALayer * layer = [button1 layer];     
     [layer setCornerRadius:8.0f];
     [layer setMasksToBounds:YES];
     [layer setBorderWidth:1.0f];
     [layer setBorderColor:[[UIColor whiteColor] CGColor]];
     button1.backgroundColor = [UIColor redColor];

選択された状態のサブクラス UIButton に対して、次のようにします。

.h ファイル内:

@interface MyButton : UIButton 
{
@private
    NSMutableDictionary *backgroundStates;
@public

}

- (void) setBackgroundColor:(UIColor *) _backgroundColor forState:(UIControlState) _state;
- (UIColor*) backgroundColorForState:(UIControlState) _state;

@end

.m ファイル内:

#import "MyButton.h"


@implementation MyButton

- (void) setBackgroundColor:(UIColor *) _backgroundColor forState:(UIControlState) _state {
    if (backgroundStates == nil) 
        backgroundStates = [[NSMutableDictionary alloc] init];

    [backgroundStates setObject:_backgroundColor forKey:[NSNumber numberWithInt:_state]];

    if (self.backgroundColor == nil)
        [self setBackgroundColor:_backgroundColor];
}

- (UIColor*) backgroundColorForState:(UIControlState) _state {
    return [backgroundStates objectForKey:[NSNumber numberWithInt:_state]];
}

#pragma mark -
#pragma mark Touches

- (void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
    [super touchesBegan:touches withEvent:event];

    UIColor *selectedColor = [backgroundStates objectForKey:[NSNumber numberWithInt:UIControlStateHighlighted]];
    if (selectedColor) {
        CATransition *animation = [CATransition animation];
        [animation setType:kCATransitionFade];
        [animation setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]];
        [self.layer addAnimation:animation forKey:@"EaseOut"];
        self.backgroundColor = selectedColor;
    }
}

- (void) touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event {
    [super touchesCancelled:touches withEvent:event];

    UIColor *normalColor = [backgroundStates objectForKey:[NSNumber numberWithInt:UIControlStateNormal]];
    if (normalColor) {
        CATransition *animation = [CATransition animation];
        [animation setType:kCATransitionFade];
        [animation setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]];
        [self.layer addAnimation:animation forKey:@"EaseOut"];
        self.backgroundColor = normalColor;
    }
}

- (void) touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
    [super touchesEnded:touches withEvent:event];

    UIColor *normalColor = [backgroundStates objectForKey:[NSNumber numberWithInt:UIControlStateNormal]];
    if (normalColor) {
        CATransition *animation = [CATransition animation];
        [animation setType:kCATransitionFade];
        [animation setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]];
        [self.layer addAnimation:animation forKey:@"EaseOut"];
        self.backgroundColor = normalColor;
    }
}

- (void) dealloc {
    [backgroundStates release];
    [super dealloc];
}

@end

次に、ViewController (カスタム クラスを含めることを忘れないでください) で、次の方法で色を設定できます。

[button1 setBackgroundColor:[UIColor colorWithRed:0.8 green:0.7 blue:0.6 alpha:1.0] forState:UIControlStateHighlighted];
于 2012-06-23T14:54:12.303 に答える