UIViewController之iOS笔记摘录

目录

1. UIViewController

注意：

  上下拉手机的菜单，并不会走VC的apperar、disappear方法

UIViewController生命周期

见iOS调试篇

跳转

方式一（presentVC）

    // present下一页
    [self presentViewController:vc animated:true completion:^{
    }];

    // 返回上一页
    [self dismissViewControllerAnimated:true completion:^{
    }];

presentVC，前配置过渡类型（高度自定义 参见下一节）

    [vc setModalTransitionStyle:UIModalTransitionStyleCoverVertical];
    /*
     过渡style

     UIModalTransitionStyleCoverVertical  由下而上（默认）
     UIModalTransitionStyleCrossDissolve  淡入淡出
     UIModalTransitionStyleFlipHorizontal 右侧向上翻转
     UIModalTransitionStylePartialCurl    向上翻页
     */
    [vc setModalPresentationStyle:UIModalPresentationFullScreen];
    /*
     弹出style

     UIModalPresentationFullScreen         全屏(默认,原VC的View消失)
     UIModalPresentationOverFullScreen     占满全屏（原VC的View不消失）
     UIModalPresentationPageSheet
     UIModalPresentationFormSheet
     UIModalPresentationCurrentContext
     UIModalPresentationCustom
     UIModalPresentationOverCurrentContext
     UIModalPresentationPopover
     UIModalPresentationNone
     */

    // 弹出我的是谁
    id presentVC=self.presentingViewController;
    // 我弹出的是谁
    id presentedVC=self.presentedViewController;

方式二(具体参见iOS之UINavigationController篇)

    跳到新页(2种)
    // 方式一
    [self.navigationController pushViewController:[UIViewController new] animated:true];
    // 方式二
    [self.navigationController showViewController:[UIViewController new] sender:nil];

    返回到前页(3种)
    // 一：返回到上一页
    [self.navigationController popViewControllerAnimated:true];
    // 二：返回到根视图页
    [self.navigationController popToRootViewControllerAnimated:true];
    // 三：返回到指定页
    [self.navigationController popToViewController:self.navigationController.viewControllers[0] animated:true];

高度自定义控制器间过渡

TransitionManager.h

#import 
#import 

@interface TransitionManager : NSObject
/**
 true：正在present
 false：正在dismiss
 */
@property (nonatomic,assign) BOOL presenting;
@end

TransitionManager.m

#import "TransitionManager.h"
@interface TransitionManager()
@end

@implementation TransitionManager
// 动画结束时（不一定和过渡时间一致，只要动画停止）调用
-(void)animationEnded:(BOOL)transitionCompleted{
    if(!transitionCompleted){   //
    }else{
    }
}

#pragma mark UIViewControllerAnimatedTransitioning
// 过渡时调用（1.获取到2个VC的View（2个阶段VC代表的不一样）   2. 分为两个阶段做不同的变化）
-(void)animateTransition:(id)transitionContext{
    //
    UIViewController *fromVC = [transitionContext viewControllerForKey:UITransitionContextFromViewControllerKey];
    UIViewController *toVC = [transitionContext viewControllerForKey:UITransitionContextToViewControllerKey];
    UIView *toView = toVC.view;
    UIView *fromView = fromVC.view;

    // [toVC beginAppearanceTransition:YES animated:YES];  toVC 调用viewWillAppear  不加不会调用
    if(self.presenting){
        // 阶段1
        [self RunPresentAnimation:transitionContext fromVC:fromVC toVC:toVC fromView:fromView toView:toView];
    }else{
        // 阶段2
        [self RunDismissAnimation:transitionContext fromVC:fromVC toVC:toVC fromView:fromView toView:toView];
    }
    // [fromVC beginAppearanceTransition:NO animated:YES];  fromVC 调用viewDidDisappear
}
// 过渡时间（没什么影响,真正决定的还是以上方法中动画设置的时间）
-(NSTimeInterval)transitionDuration:(id)transitionContext{
    return 0.82;
}


#pragma mark UIViewControllerTransitioningDelegate
// 当present VC后调用，返回 过渡动画管理者(实现了UIViewControllerAnimatedTransitioning的类)，一般返回单独的遵守该协议的动画类
-(id)animationControllerForPresentedController:(UIViewController *)presented presentingController:(UIViewController *)presenting sourceController:(UIViewController *)source{
    self.presenting=true;
    return self;
}
// 当dismiss VC后调用，返回 过渡动画管理者
- (id )animationControllerForDismissedController:(UIViewController *)dismissed{
    self.presenting=false;
    return self;
}

// 返回
//- (id )interactionControllerForPresentation:(id )animator{
//
//}
// 返回
//- (id )interactionControllerForDismissal:(id )animator{
//
//}
//
//// 返回 ：UIPresentationController
//- (UIPresentationController *)presentationControllerForPresentedViewController:(UIViewController *)presented presentingViewController:(nullable UIViewController *)presenting sourceViewController:(UIViewController *)source{
//
//}





// 动画阶段1(presenting)-——自定义方法
-(void)RunPresentAnimation:(id)transitionContext fromVC:(UIViewController *)fromVC toVC:(UIViewController *)toVC fromView:(UIView *)fromView toView:(UIView *)toView {
    
    /*
     设置toVC的初始位置，并添加到总容器View上（此时fromView已经在上面）
     */
    // 获取总容器View
    UIView* containerView = [transitionContext containerView];
    // 获取fromVC的frame
    CGRect frame = [transitionContext initialFrameForViewController:fromVC];
    // 底部滑进 离屏滑入 即y坐标 从height --->0
    CGRect offScreenFrame = frame;
    offScreenFrame.origin.y = offScreenFrame.size.height;
    toView.frame = offScreenFrame;
    //
    [containerView insertSubview:toView aboveSubview:fromView];
    
    /*
     对formView 和 toView 进行动画
     */
    //三维变化
    CATransform3D t1 = CATransform3DIdentity;
    t1.m34 = 1.0/-1000;
    //x y方向各缩放比例为0.95
    t1 = CATransform3DScale(t1, 0.95, 0.95, 1);
    //x方向旋转15°
    t1 = CATransform3DRotate(t1, 15.0f * M_PI/180.0f, 1, 0, 0);
    
    CATransform3D t2 = CATransform3DIdentity;
    t2.m34 = 1.0/-1000;
    //沿Y方向向上移动
    t2 = CATransform3DTranslate(t2, 0, -fromView.frame.size.height*0.08, 0);
    //在x y方向各缩放比例为0.8
    t2 = CATransform3DScale(t2, 0.8, 0.8, 1);
    
    //UIView关键帧动画 总的持续时间：1.0
    [UIView animateKeyframesWithDuration:1.0 delay:0.0 options:UIViewKeyframeAnimationOptionCalculationModeCubic animations:^{
        
        //开始时间：1.0*0.0 持续时间：1.0*0.4
        [UIView addKeyframeWithRelativeStartTime:0.0f relativeDuration:0.4f animations:^{
            //执行t1动画 缩放并旋转角度
            fromView.layer.transform = t1;
            //fromView的透明度
            fromView.alpha = 0.6;
        }];
        //开始时间：1.0*0.1 持续时间：1.0*0.5
        [UIView addKeyframeWithRelativeStartTime:0.1f relativeDuration:0.5f animations:^{
            //执行t2动画 向上平移和缩放
            fromView.layer.transform = t2;
        }];
        //开始时间：1.0*0.0 持续时间：1.0*1.0
        [UIView addKeyframeWithRelativeStartTime:0.0f relativeDuration:1.0f animations:^{
            //toView向上滑入
            toView.frame = frame;
        }];
        
    } completion:^(BOOL finished) {
        
        // 过渡动画结束
        [transitionContext completeTransition:![transitionContext transitionWasCancelled]];
    }];
}
// 动画阶段2-——自定义方法
-(void)RunDismissAnimation:(id)transitionContext fromVC:(UIViewController *)fromVC toVC:(UIViewController *)toVC fromView:(UIView *)fromView toView:(UIView *)toView {
    
    /*
     隐藏vc2，还原vc1
     */
    CGRect frame = [transitionContext initialFrameForViewController:fromVC];
    toView.frame = frame;
    
    CGRect frameOffScreen = frame;
    frameOffScreen.origin.y = frame.size.height;
    
    CATransform3D t1 = CATransform3DIdentity;
    t1.m34 = 1.0/-1000;
    t1 = CATransform3DScale(t1, 0.95, 0.95, 1);
    t1 = CATransform3DRotate(t1, 15.0f * M_PI/180.0f, 1, 0, 0);
    
    // 关键帧过渡动画
    [UIView animateKeyframesWithDuration:1.0 delay:0 options:UIViewKeyframeAnimationOptionCalculationModeCubic animations:^{
        
        [UIView addKeyframeWithRelativeStartTime:0.0f relativeDuration:1.0f animations:^{
            fromView.frame = frameOffScreen;
        }];
        
        [UIView addKeyframeWithRelativeStartTime:0.35f relativeDuration:0.35f animations:^{
            toView.layer.transform = t1;
            //透明度为1.0
            toView.alpha = 1.0;
        }];
        [UIView addKeyframeWithRelativeStartTime:0.75f relativeDuration:0.25f animations:^{
            //还原3D状态
            toView.layer.transform = CATransform3DIdentity;
        }];
    } completion:^(BOOL finished) {
        
        [transitionContext completeTransition:![transitionContext transitionWasCancelled]];
    }];
}

@end

ViewController 间传值

方式一 (通过属性传值)

/**
 id
 */
@property (nonatomic,copy) NSString *expertId;

方式二 (通过block传值)

/**
 attentionBlock
 */
@property (nonatomic,copy) void (^attentionBlock)(NSString *expertId);

方式三（dele）

@protocol ExpertViewControllerDele 
-(void)attentionExpert:(NSString *)expertId;
@end

@property (nonatomic,weak) id *dele;

方式四 (通知)

    [[NSNotificationCenter defaultCenter]addObserver:self selector:@selector(handleAttention:) name:@"AttentionExpert" object:nil];
    [[NSNotificationCenter defaultCenter]postNotificationName:@"AttentionExpert" object:@{@"expertId":@"110",@"isAttention":@(1)}];

方式五（target+action）

容器视图控制器

系统自带的容器视图控制器：UINavigationController, UITabBarController和UISplitViewController

普通子控制器

点击按钮进入页面B（根据接口获取的不同的状态，进入不同的页面）

一般把判断的逻辑放在页面B，而不是按钮所在的页面A。这时需要根据不同的条件添加不同的控制器以显示不同的页面。

    // 添加
    [self addChildViewController:vc];
    [self.view addSubview:vc.view];    // 注意：这里会调用viewDidLoad等方法

    // 移除
    [vc removeFromParentViewController];     // 将vc从总VC中移除，此时视图还在屏幕上
    [vc.view removeFromSuperview];           // 将vc的view移除

UIViewController之iOS笔记摘录

1. UIViewController

你可能感兴趣的:(UIViewController之iOS笔记摘录)