廣東話變更按鈕圖象

Question

我有3個按鈕：

* .H：（全部是具有實心圓，這意味着它們是分配）

@property (strong, nonatomic) IBOutlet UIButton *AllButton; 
@property (strong, nonatomic) IBOutlet UIButton *FavouritesButton; 

*的.m：

@synthesize FavouritesButton; 
@synthesize AllButton; 

和代碼：

AllButton.imageView.image =[UIImage imageNamed:@"list_top_icon_active-1.png"]; //image exists 

它不改變圖像！在其他觀點我做了同樣的事情，他們工作 - 到底是什麼？

我甚至試圖設置不存在圖像：

AllButton.imageView.image =[UIImage imageNamed:@"oisagiowgiow.png"]; //image doesn't exist - but no errors or crashes 

誰能幫助我解決這個問題？

Answer 1

試着這麼做

[AllButton setImage:[UIImage imageNamed:@"list_top_icon_active-1.png"] forState:UIControlStateNormal]; 

，並確保您的按鈕類型是定製

Answer 2

試試這個，

UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom]; 
button.frame = CGRectMake(40, 140, 240, 30); 
[button setTitle:@"title" forState:UIControlStateNormal]; 
[button setImage:[UIImage imageNamed:@"image.png"] forState:UIControlStateNormal]; 

Answer 3

您應該指定圖像的UIButton方式如下：

[allButton setImage:[UIImage imageNamed:@"oisagiowgiow.png"] forState:UIControlStateNormal];