iphone - 将UISlider连接到fontSize

将UISlider连接到fontSize [（IBAction）font1和（IBAction）font2]的可能方法。这是代码

。H

@interface ViewController : UIViewController
{
    IBOutlet UISlider* fontSizeSlider;
    IBOutlet UITextView* textView;
}
-(IBAction)sliderValueChanged:(UISlider*)sender;
-(IBAction)font1;
-(IBAction)font2;
@end

.m

-(IBAction)sliderValueChanged:(UISlider*)sender
{
   textView.font = [UIFont fontWithName:@"??????" size:sender.value];
}

-(IBAction)font1{
   textView.font = [UIFont fontWithName:@"Heiti TC" size:18];
}

-(IBAction)font2{
    textView.font = [UIFont fontWithName:@"Marker Felt" size:18];
}

-(IBAction)font1; //[UIButton]

-(IBAction)font1; //[UIButton]

-(IBAction)sliderValueChanged; //[UISlider]

最佳答案

如果我理解正确，则希望能够从两种字体中进行选择。因此，您必须将字体名称存储在NSString中。像这样：

。H

@interface ViewController : UIViewController
{
    IBOutlet UISlider* fontSizeSlider;
    IBOutlet UITextView* textView;
    NSString *currentFont;
}
-(IBAction)sliderValueChanged:(UISlider*)sender;
-(IBAction)font1;
-(IBAction)font2;
@end

.m

-(void)viewDidLoad {
    [super viewDidLoad];
    currentFont = @"Heiti TC"; //Or whatever your default font is
    textView.font = [UIFont fontWithName:currentFont size:sender.value];
}
-(IBAction)sliderValueChanged:(UISlider*)sender
{
   textView.font = [UIFont fontWithName:currentFont size:sender.value];
}

-(IBAction)font1{
   currentFont = @"Heiti TC";
   textView.font = [UIFont fontWithName:currentFont size:fontSizeSlider.value];
}

-(IBAction)font2{
   currentFont = @"Marker Felt";
   textView.font = [UIFont fontWithName:currentFont size:fontSizeSlider.value];
}

关于iphone - 将UISlider连接到fontSize，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/14026512/