无涯教程-OC - View Transition函数

View Transition是在适当的过渡动画效果下将一个视图添加到另一视图的有效方法。

更新ViewController.xib如下-

为在xib中创建的按钮创建操作。

更新ViewController.h

在ViewController类中声明两个视图。创建动作后， ViewController.h 文件将如下所示-

#import <UIKit/UIKit.h>
@interface ViewController : UIViewController {
UIView view1;
UIView view2;
}
-(IBAction)flipFromLeft:(id)sender;
-(IBAction)flipFromRight:(id)sender;
-(IBAction)flipFromTop:(id)sender;
-(IBAction)flipFromBottom:(id)sender;
-(IBAction)curlUp:(id)sender;
-(IBAction)curlDown:(id)sender;
-(IBAction)dissolve:(id)sender;
-(IBAction)noTransition:(id)sender;
@end

更新ViewController.m

无涯教程将添加一个自定义方法 setUpView 来初始化视图。无涯教程还创建了另一个方法 doTransitionWithType:，该方法创建从 view1 到 view2 的转换，反之亦然。然后，无涯教程将实现之前创建的操作方法，该方法将使用过渡类型调用doTransitionWithType:方法。更新后的 ViewController.m 如下-

#import "ViewController.h"
@interface ViewController ()
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
[self setUpView];
//在加载视图后进行任何额外的设置，通常是从一个 nib 开始。
}
-(void)setUpView {
view1 = [[UIView alloc]initWithFrame:self.view.frame];
view1.backgroundColor = [UIColor lightTextColor];
view2 = [[UIView alloc]initWithFrame:self.view.frame];
view2.backgroundColor = [UIColor orangeColor];
[self.view addSubview:view1];
[self.view sendSubviewToBack:view1];
}
-(void)doTransitionWithType:(UIViewAnimationTransition)animationTransitionType {
if ([[self.view subviews] containsObject:view2 ]) {
[UIView transitionFromView:view2
toView:view1
duration:2
options:animationTransitionType
completion:^(BOOL finished) {
[view2 removeFromSuperview];
}];
[self.view addSubview:view1];
[self.view sendSubviewToBack:view1];
} else {
[UIView transitionFromView:view1
toView:view2
duration:2
options:animationTransitionType
completion:^(BOOL finished) {
[view1 removeFromSuperview];
}];
[self.view addSubview:view2];
[self.view sendSubviewToBack:view2];
}
}
-(IBAction)flipFromLeft:(id)sender {
[self doTransitionWithType:UIViewAnimationOptionTransitionFlipFromLeft];
}
-(IBAction)flipFromRight:(id)sender {
[self doTransitionWithType:UIViewAnimationOptionTransitionFlipFromRight];
}
-(IBAction)flipFromTop:(id)sender {
[self doTransitionWithType:UIViewAnimationOptionTransitionFlipFromTop];
}
-(IBAction)flipFromBottom:(id)sender {
[self doTransitionWithType:UIViewAnimationOptionTransitionFlipFromBottom];
}
-(IBAction)curlUp:(id)sender {
[self doTransitionWithType:UIViewAnimationOptionTransitionCurlUp];
}
-(IBAction)curlDown:(id)sender {
[self doTransitionWithType:UIViewAnimationOptionTransitionCurlDown];
}
-(IBAction)dissolve:(id)sender {
[self doTransitionWithType:UIViewAnimationOptionTransitionCrossDissolve];
}
-(IBAction)noTransition:(id)sender{
[self doTransitionWithType:UIViewAnimationOptionTransitionNone];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
//Dispose of any resources that can be recreated.
}
@end

运行应用程序时，将获得以下输出-

您可以选择不同的按钮来查看过渡的工作方式。选择卷曲时，过渡将如下所示:

参考链接

www.learnfk.com/ios/ios-ui-…