如何在按下按钮时更改按钮的颜色，并在按下其他按钮时重置为原始颜色？

debugcn 发表于 Dev

用户名

我已经根据数组数量动态创建了按钮，如果按此按钮，它将移动到下一页。如果要按按钮，我想更改按钮的背景颜色。按第一个按钮，其背景颜色应该更改；如果按，则拒绝任何其他按钮，第一个按下的按钮应变为该按钮的默认颜色，而新按下的按钮的背景色应更改，请帮助我执行此操作，在我尝试按此按钮的方法上，

 - (IBAction)btn1Tapped:(id)sender {

UIButton *btn = (UIButton *) sender;


selected = YES;

if (selected) {
    [btn setBackgroundColor:[UIColor redColor]];

}

}

这是我的按钮创建代码，

int buttonheight = 30;
int horizontalPadding = 20;
int verticalPadding = 20;

int totalwidth = self.view.frame.size.width;

int x = 10;
int y = 150;

for (int i=0; i<array.count; i++)
{

    NSString* titre = [array objectAtIndex:i];


    CGSize contstrainedSize = CGSizeMake(200, 40);//The maximum width and height

    NSDictionary *attributesDictionary = [NSDictionary dictionaryWithObjectsAndKeys:
                                          [UIFont systemFontOfSize:20.0], NSFontAttributeName,
                                          nil];
    CGRect frame = [titre boundingRectWithSize:contstrainedSize options:NSStringDrawingUsesLineFragmentOrigin attributes:attributesDictionary context:nil];

    int xpos = x + CGRectGetWidth(frame);




    if (xpos > totalwidth) {

        y =y +buttonheight+ verticalPadding;
        x = 10;


    }

    UIButton *word= [UIButton buttonWithType:UIButtonTypeRoundedRect];

    self.word  = word;


    NSLog(@"%@", NSStringFromCGRect(frame));
    word = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    word.frame = CGRectMake(x, y, CGRectGetWidth(frame)+5, CGRectGetHeight(frame));
    [word setTitle:titre forState:UIControlStateNormal];
    [word setTitle:titre  forState:UIControlStateSelected];

    word.backgroundColor = [UIColor colorWithRed:30.0/255.0 green:134.0/255.0 blue:255.0/255.0 alpha:1.0];

    [word setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];


    [word setTag:i];
    [word addTarget:self action:@selector(btn1Tapped:) forControlEvents:UIControlEventTouchUpInside];
    word.layer.borderColor = [UIColor blackColor].CGColor;
    word.layer.borderWidth = 1.0f;
    word.layer.cornerRadius = 5;

    [self.view addSubview:word];

    x =x+horizontalPadding+CGRectGetWidth(frame);



}

阿杰·加巴尼（Ajay Gabani）

- (IBAction)allBtnSharedTappedevent:(id)sender {

     UIButton *btn = (UIButton *) sender;

     [btn setBackgroundColor:[UIColor redColor]];

    //loop through all your buttons

    for(UIView *view in [self.view subviews]){
        if([view isKindOfClass:[UIButton class]]){
            if(view != btn){
                UIButton* btn1 = (UIButton*) view;
                [btn1 setBackgroundColor:[UIColor grayColor]];
            }
        }
    }
}

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