On iOS transition animation

In general, we use two transition push and present

Present

/* * 1. Set proxy-(instancetype) init {self = [super init], if (self) {self.transitioningdelegate = self; self.modalpresenta Tionstyle = Uimodalpresentationcustom; } return self; } 2. Add protocol <UIViewControllerTransitioningDelegate> 3. Override protocol Method-Initialize in Protocol method-(id< uiviewcontrolleranimatedtransitioning>) Animationcontrollerforpresentedcontroller: (UIViewController *) Presented Presentingcontroller: (Uiviewcontroller *) presenting Sourcecontroller: (Uiviewcontroller *) source{  }  -(id<uiviewcontrolleranimatedtransitioning>) Animationcontrollerfordismissedcontroller: ( Uiviewcontroller *) dismissed{  } **/

2.push

When the first controller pushes a second controller,

ViewController2 *VC = [[ViewController2 alloc]init];    Self.navigationcontroller. Delegate // must write this sentence    [Self.navigationcontroller PUSHVIEWCONTROLLER:VC Animated:yes];

A second controller

@interface viewcontroller2:uiviewcontroller<uinavigationcontrollerdelegate>@end

Proxy method

-(ID<UIViewControllerAnimatedTransitioning>) Navigationcontroller: (Uinavigationcontroller *) Navigationcontroller animationcontrollerforoperation: (uinavigationcontrolleroperation) operation Fromviewcontroller: (Uiviewcontroller *) Fromvc Toviewcontroller: (Uiviewcontroller *) ToVC {}

The above is where push and present occur, and all need to return a uiviewcontrolleranimatedtransitioning

So we write a class

@interface wjtransiation_mobile:nsobject<uiviewcontrolleranimatedtransitioning>

@end

Then modify the protocol method inside

Animation time

-(Nstimeinterval) Transitionduration: (Nullable ID <UIViewControllerContextTransitioning>) Transitioncontext;

Custom transition Animations

-(void) Animatetransition: (id <UIViewControllerContextTransitioning>) Transitioncontext;

Performing transition animations

1. Get front and rear controller

Uiviewcontroller *TOVC = [Transitioncontext viewcontrollerforkey:uitransitioncontexttoviewcontrollerkey];     *FROMVC = [Transitioncontext Viewcontrollerforkey:uitransitioncontextfromviewcontrollerkey];

2. Get the Transition animation view

UIView *containerview = [Transitioncontext Containerview];

3. Add a view to the Containerview that the front and rear controller needs to animate

[Containerview Addsubview:tempview];    [Containerview AddSubview:toVC.view];

4. Perform your own animations

Demo Link: http://pan.baidu.com/s/1kTPPUMb

：

Tween

// adding Transiationview Properties Dynamically @interface  *Transiationview; @end

#import <objc/runtime.h>@implementation  uiviewcontroller (transiationview)  Staticchar  transiationviewkey; -(void) Settransiationview: (UIView *) transiationview {    return objc_ Setassociatedobject (self, &Transiationviewkey, Transiationview, objc_association_retain_nonatomic);} -(UIView *) transiationview {     return objc_getassociatedobject (self, &  Transiationviewkey);} @end

On iOS transition animation