以編程方式將按鈕添加到UIToolBar

Question

我添加了一個工具欄，然後以編程方式向其添加3個按鈕。然而，3個按鈕都混亂到一個角落。我想要做的是在3個按鈕之間留出空間，以便UI看起來很體面。

我該怎麼做？

UIButton *button = [UIButton buttonWithType:100]; 

[button addTarget:self action:@selector(hideGender:) forControlEvents:UIControlEventTouchUpInside]; 

[button setImage:[UIImage imageNamed:@"img"] forState:UIControlStateNormal]; 

[button setTitle:@"Images" forState:UIControlStateNormal]; 

button.imageEdgeInsets= UIEdgeInsetsMake(0.0, 0.0, 0, 50); 

button.tag=0; 





UIButton *button2 = [UIButton buttonWithType:100]; 

[button2 addTarget:self action:@selector(hideSchool:) forControlEvents:UIControlEventTouchUpInside]; 

button2.tag=2; 

button2.imageEdgeInsets= UIEdgeInsetsMake(0.0, 0.0, 0, 50); 

[button2 setImage:[UIImage imageNamed:@"img22"] forState:UIControlStateNormal]; 



UIButton *button3 = [UIButton buttonWithType:100]; 

[button3 addTarget:self action:@selector(hideCar:) forControlEvents:UIControlEventTouchUpInside]; 

button.tag=3; 

button3.imageEdgeInsets= UIEdgeInsetsMake(0.0, 0.0, 0,50); 

[button3 setImage:[UIImage imageNamed:@"img3"] forState:UIControlStateNormal]; 



UIBarButtonItem *barButtonItem0 = [[UIBarButtonItem alloc] initWithCustomView:button] ; 

UIBarButtonItem *barButtonItem2 = [[UIBarButtonItem alloc] initWithCustomView:button2] ; 

UIBarButtonItem *barButtonItem3 = [[UIBarButtonItem alloc] initWithCustomView:button3] ; 

更新：我希望只使用UIButton的

Answer 1

UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom]; 
[btn setBackgroundImage:[UIImage imageNamed:@"image.png"] forState:UIControlStateNormal]; 
[btn addTarget:self action:@selector(action:) forControlEvents:UIControlEventTouchUpInside]; 
UIBarButtonItem *barBackButton = [[UIBarButtonItem alloc] initWithCustomView:btn]; 
[toolBar setItems:[NSArray arrayWithObject:barBackButton]]; 

現在setItems設定按鈕的陣列。假設你想放三個按鈕，那麼每個按鈕的寬度將是screenWidth/3，文本將居中對齊。這樣，沒有按鍵的超越。