Ios 将一系列按钮制作成一个数组
我在scrollview中添加了大约10-12个按钮。如何将这些按钮组合成一组按钮,以便简化代码?到目前为止,我的代码(仅显示前三个按钮)如下所示:Ios 将一系列按钮制作成一个数组,ios,arrays,uibutton,Ios,Arrays,Uibutton,我在scrollview中添加了大约10-12个按钮。如何将这些按钮组合成一组按钮,以便简化代码?到目前为止,我的代码(仅显示前三个按钮)如下所示: UIButton *redButton =[UIButton buttonWithType:UIButtonTypeRoundedRect]; redButton.frame = CGRectMake(0, 0, 50, 30); redButton.tag = 2; [redButton setTitle:@"re
UIButton *redButton =[UIButton buttonWithType:UIButtonTypeRoundedRect];
redButton.frame = CGRectMake(0, 0, 50, 30);
redButton.tag = 2;
[redButton setTitle:@"red" forState:UIControlStateNormal];
redButton.backgroundColor = [UIColor redColor];
[redButton setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[redButton addTarget:self action:@selector(buttonAction:) forControlEvents:UIControlEventTouchUpInside];
[self.scollView addSubview:redButton];
UIButton *blueButton =[UIButton buttonWithType:UIButtonTypeRoundedRect];
blueButton.frame = CGRectMake(70, 0, 50, 30);
blueButton.tag = 3;
[blueButton setTitle:@"blue" forState:UIControlStateNormal];
blueButton.backgroundColor = [UIColor blueColor];
[blueButton setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[blueButton addTarget:self action:@selector(buttonAction:) forControlEvents:UIControlEventTouchUpInside];
[self.scollView addSubview:blueButton];
UIButton *greenButton =[UIButton buttonWithType:UIButtonTypeRoundedRect];
greenButton.frame = CGRectMake(140, 0, 50, 30);
greenButton.tag = 5 ;
[greenButton setTitle:@"green" forState:UIControlStateNormal];
greenButton.backgroundColor = [UIColor greenColor];
[greenButton setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[greenButton addTarget:self action:@selector(buttonAction:) forControlEvents:UIControlEventTouchUpInside];
[self.scollView addSubview:greenButton];
您可以使用:
[NSArray arrayWithObjects:redButton,greenButton,blueButton,nil];
但最好还是用一本字典
[NSDictionary dictionaryWithObjectsAndKeys:
redButton, @"red",
blueButton, @"blue",
greenButton, @"green",
nil];
这样,您可以使用键来查找它们,而不是索引。好的,我们有了解决方案,请尝试此代码
-(void) createButtons{
NSDictionary *buttonColors = @{@"Red":[UIColor redColor],@"Green":[UIColor greenColor],@"Black":[UIColor blackColor],@"Yellow":[UIColor yellowColor],@"Blue":[UIColor blueColor]};
int tag = 1;
for(NSString *key in buttonColors.allKeys){
UIColor *color = [buttonColors objectForKey:key];
UIButton *button =[UIButton buttonWithType:UIButtonTypeRoundedRect];
CGRect frame = CGRectMake(((tag -1)*70), 0, 50, 30);
[button setFrame:frame];
button.tag = tag;
button.backgroundColor = color;
[button setTitleColor:color forState:UIControlStateNormal];
[button addTarget:self action:@selector(buttonAction:) forControlEvents:UIControlEventTouchUpInside];
[button setTitle:key forState:UIControlStateNormal];
[self.scrollView addSubview:button];
tag++;
}
}
你能看看这是否可行吗
- (void)addButtonsToScrollView
{
NSArray *buttons = @[@{@"Tag":@2,@"Title":@"red",@"Color":[UIColor redColor]},
@{@"Tag":@3,@"Title":@"blue",@"Color":[UIColor blueColor]},
@{@"Tag":@5,@"Title":@"green",@"Color":[UIColor greenColor]}];
CGRect frame = CGRectMake(0.0f, 0.0f, 50.0f, 30.0f);
for (NSDictionary *dict in buttons)
{
UIButton *button =[UIButton buttonWithType:UIButtonTypeRoundedRect];
button.frame = frame;
button.tag = [dict[@"Tag"] integerValue];
[button setTitle:dict[@"Title"]
forState:UIControlStateNormal];
button.backgroundColor = dict[@"Color"];
[button setTitleColor:[UIColor blackColor]
forState:UIControlStateNormal];
[button addTarget:self action:@selector(buttonAction:)
forControlEvents:UIControlEventTouchUpInside];
[self.scrollView addSubview:button];
frame.origin.x+=frame.size.width+20.0f;
}
CGSize contentSize = self.scrollView.frame.size;
contentSize.width = frame.origin.x;
self.scrollView.contentSize = contentSize;
}
你的意思是存储按钮(这样你就简化了使用它们),还是配置按钮(那么你真的是指如何编写循环来配置按钮)?对不起,是的,我的意思是配置一个循环。