How to animate the view Left to Right in iPhone?

问题:

How to animate the view transition left to right(Similar push view). When i click the button, the view should be transited from left to right. So please guide me and give some sample links.

Thanks.

回答1:

Suppose that you want to push view2 from the right to replace view1.

// Set up view2
view2.frame = view1.frame;
view2.center = CGPointMake(view1.center.x + CGRectGetWidth(view1.frame), view1.center.y);
[view1.superview addSubview: view2];
// Animate the push
[UIView beginAnimations: nil context: NULL];
[UIView setAnimationDelegate: self];
[UIView setAnimationDidStopSelector: @selector(pushAnimationDidStop:finished:context:)];
view2.center = view1.center;
view1.center = CGPointMake(view1.center.x - CGRectGetWidth(view1.frame), view1.center.y);
[UIView commitAnimations];

Then (optionally) implement this method to remove view1 from the view hierarchy:

- (void) pushAnimationDidStop: (NSString *) animationID finished: (NSNumber *) finished context: (void *) context {
    [view1 removeFromSuperview];
}

In that animation delegate method you may also want to release view1 and set its reference to nil, depending on whether you need to keep it around after the transition.

回答2:

To animate from left to right you can use the below block of code

    CATransition *transition = [CATransition animation];
    transition.duration = 0.4;
    transition.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
    transition.type = kCATransitionPush;
    transition.subtype = kCATransitionFromLeft;
    [self.view.window.layer addAnimation:transition forKey:nil];
    [self presentViewController:YOUR_VIEWCONTROLLER animated:YES completion:nil];

回答3:

Another option is to use blocks for animation with less line of codes and for simplicity:

Here is the sample

CGRect viewLeftRect;//final frames for left view
CGRect viewRightRect;//final frames for right view

[UIView animateWithDuration:0.3f animations:^{
    [viewLeft setFrame:viewLeftRect];
    [viewRight setFrame:viewRightRect];
} completion:^(BOOL finished) {
    //do what ever after completing animation
}];

回答4:

You can also add animation from right to left like this:

    scrAnimation.frame=CGRectMake(248, 175, 500, 414);  //your view start position

    [UIView animateWithDuration:0.5f
                          delay:0.0f
                        options:UIViewAnimationOptionBeginFromCurrentState
                     animations:^{
                         [scrAnimation setFrame:CGRectMake(0, 175, 500, 414)];   // last position
                     }
                     completion:nil];