要褪色的隨機文本

Question

如何獲得隨機文本從text1到text2？

我的代碼如下：

-(IBAction)generateNumbers; { 
    int randomNumber = arc4random() % 1; 
    switch (randomNumber) { 
     case 0: 
      label.text = @"text1"; 
      break; 
     case 1: 
      label.text = @"text2"; 
      break; 
     default: 
      break; 
    } 
} 

Answer 1

-(IBAction)generateNumbers; { 
int randomNumber = arc4random() % 2; 
switch (randomNumber) { 
case 0: 
    label.text = @"text1"; 
    break; 
case 1: 
    label.text = @"text2"; 
    break; 
default: 
    break; 
} 
} 

對於淡入/停止使用此方法

- (void) setTextWithFade { 
    [label setAlpha:1]; 
    [UIView beginAnimations:nil context:nil]; 
    [UIView setAnimationDuration:1]; 
    [UIView setAnimationDelegate:self]; 
    [UIView setAnimationDidStopSelector:@selector(fadeDidStop)]; 
    [lbl setAlpha:0]; 
    [UIView commitAnimations]; 
} 

- (void)fadeDidStop { 
    label.text = @"new text"; 
    [UIView beginAnimations:nil context:NULL]; 
    [UIView setAnimationDuration:1]; 
    [lbl setAlpha:1]; 
    [UIView commitAnimations]; 
} 

電話時，你點擊這樣的按鈕，第一種方法：

[self setTextWithFade];