iOS視圖淡入淡出效果

jopen 9年前發布 | 964 次閱讀 Objective-C IntelliJ IDEA 

- (void) fadeOut: (id) sender {
    CGContextRef context = UIGraphicsGetCurrentContext(); 
    [UIView beginAnimations:nil context:context];
    [UIView setAnimationCurve:UIViewAnimationCurveEaseInOut]; 
    [UIView setAnimationDuration:1.0];
    [[self.view viewWithTag:999] setAlpha:0.0f]; 
    [UIView commitAnimations]; 
    self.navigationItem.rightBarButtonItem = BARBUTTON(@”Fade In”,@selector(fadeIn:));
}


    

  • (void) fadeIn: (id) sender {
  CGContextRef context = UIGraphicsGetCurrentContext(); 
  [UIView beginAnimations:nil context:context];
  [UIView setAnimationCurve:UIViewAnimationCurveEaseInOut]; 
  [UIView setAnimationDuration:1.0];
  [[self.view viewWithTag:999] setAlpha:1.0f]; 
  [UIView commitAnimations]; 
  self.navigationItem.rightBarButtonItem = BARBUTTON(@”Fade Out”,@selector(fadeOut:));
}
    

    • 

  • (void) viewDidLoad {
  self.navigationItem.rightBarButtonItem = BARBUTTON(@”Fade Out”,@selector(fadeOut:));
}
    

    • 



@end</pre>
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