连接UISlider到fontSize的实现方法
不知道应该怎么实现连接UISlider到fontSize （IBAction)font1和(IBAction)font2。
.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]
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我理解的你是要从两种字体中选择，这样可以把字体放在一个NSString中实现，然后
.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]; }2019-07-17 19:15:35赞同 展开评论
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