为什么我不能设置我的按钮的阴影颜色？

Question

我想在UIButton上设置阴影颜色，但我似乎能够得到的是中灰色。

UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect]; 
button.frame = CGRectMake(20, 20, 200, 100); 

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

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

[button setTitleColor:[UIColor blackColor] forState:UIControlStateNormal]; 
[button.titleLabel setFont:[UIFont fontWithName:@"Helvetica" size:96]]; 

// set up the button colours 
button.titleLabel.shadowColor = [UIColor blueColor]; 
[button.titleLabel setShadowOffset:CGSizeMake(5.0f, 5.0f)]; 

[self.view addSubview:button]; 

alt text http://img.skitch.com/20090825-xur3112ni5q2wrwwiix4jbcwc5.png

上午我设置了错误的性质，或者是我设置shadowColor这是错误的方式？

谢谢。

Answer 1

你试过：

[button setTitleShadowColor:[UIColor blueColor] forState:UIControlStateNormal];