重複safari標籤視圖切換功能與iphone sdk

Question

我想複製移動safari的標籤功能中發現的視圖切換功能。我已經實現了包含視圖截圖的滾動視圖，但是，當選擇視圖時，我將如何複製縮放動畫以及出現的標題和工具欄，反之亦然？

Answer 1

我找到了答案，所以我會分享。

- (void)clickHandler{ 

// create an image that looks exactly like 
// the preview image in your scroll view (can leave off the toolbar/statusbar if you like) 
UIImage *img = [UIImage imageNamed:@"something.png"]; 

// create an imageview to hold the image 
UIImageView *iv = [[UIImageView alloc] initWithImage:img]; 

// ensure that the frame is set so that it's directly over the image in your scrollview 
iv.frame = CGRectMake(60, 150, 200, 200); 

// push the image into the superview over top this controller's view 
[[self.view superview] insertSubview:iv aboveSubview:self.view]; 

// refresh superview NOW 
[[self.view superview] performSelectorOnMainThread:@selector(setNeedsDisplay) withObject:nil waitUntilDone:YES]; 

//----------- 
//animate the image to bring it from it's "scrollview size" to the size it will be after the transition. 

[UIImageView beginAnimations:nil context:nil]; 
[UIImageView setAnimationDuration:0.3]; 

iv.frame = CGRectMake(0, 65, 320, 371); 

[UIImageView commitAnimations]; 

//----------- 

// transition to the new view using the CrossDissolve transition (or just don't animate it.) 
NewViewController *controller = [[NewViewController alloc] initWithNibName:@"NewView" bundle:nil]; 
controller.modalTransitionStyle = UIModalTransitionStyleCrossDissolve; 
[self presentModalViewController:controller animated:YES]; 
[controller release]; 

// set the animated imageview to remove itself after a delay 
// (after the new view is transitioned into place below it.) 
[iv performSelector:@selector(removeFromSuperview) withObject:nil afterDelay:0.3]; 

// be sure to release where needed and all that, I may have cut too much from the code for this snippet. 
// this may not be the best example, but it does work. 
// please post any improvements back so that we can all benefit 

}