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UIPageViewController实现的左右滑动界面

2019年07月24日  | 移动技术网IT编程  | 我要评论

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本文实例为大家分享了uipageviewcontroller实现左右滑动界面展示的具体代码，供大家参考，具体内容如下


.h

#import <uikit/uikit.h>
@interface viewcontroller : uiviewcontroller

@end

.m

#import "viewcontroller.h"
#import "subpage1viewcontroller.h"
#import "subpage2viewcontroller.h"
@interface viewcontroller ()<uipageviewcontrollerdatasource,uipageviewcontrollerdelegate>
@property nsarray *contentviewcontrollers; //viewcontrollers
@property (nonatomic, strong) uipageviewcontroller *pageviewcontroller;
@end

@implementation viewcontroller

- (void)viewdidload {
  [super viewdidload];
  [self pageviewcontroller];
}

- (void)didreceivememorywarning {
  [super didreceivememorywarning];
  // dispose of any resources that can be recreated.
}
#pragma mark
#pragma mark ----- uipageviewcontrollerdatasource -----
- (uiviewcontroller *)pageviewcontroller:(uipageviewcontroller *)pageviewcontroller viewcontrollerbeforeviewcontroller:(uiviewcontroller *)viewcontroller
{
  nsuinteger index = [self indexforviewcontroller:viewcontroller];
  if (index == 0) {
    index = [self.contentviewcontrollers count] - 1;
  } else {
    index--;
  }
  return [self viewcontrolleratindex:index];
}
- (uiviewcontroller *)pageviewcontroller:(uipageviewcontroller *)pageviewcontroller viewcontrollerafterviewcontroller:(uiviewcontroller *)viewcontroller
{
  nsuinteger index = [self indexforviewcontroller:viewcontroller];
  index++;
  if (index == [self.contentviewcontrollers count]) {
    index = 0;
  }
  return [self viewcontrolleratindex:index];
}
- (nsuinteger)indexforviewcontroller:(uiviewcontroller *)viewcontroller
{
  return [self.contentviewcontrollers indexofobject:viewcontroller];
}

- (uiviewcontroller *)viewcontrolleratindex:(nsuinteger)index
{
  if (index > [self.contentviewcontrollers count]) {
    return nil;
  }
  uiviewcontroller *vc = [self.contentviewcontrollers objectatindex:index];
  return vc;
}
#pragma mark
#pragma mark ----- uipageviewcontrollerdelegate -----
- (void)pageviewcontroller:(uipageviewcontroller *)pageviewcontroller willtransitiontoviewcontrollers:(nsarray *)pendingviewcontrollers
{


}
- (void)pageviewcontroller:(uipageviewcontroller *)pageviewcontroller didfinishanimating:(bool)finished previousviewcontrollers:(nsarray *)previousviewcontrollers transitioncompleted:(bool)completed
{
}
#pragma mark
#pragma mark init
- (uipageviewcontroller *)pageviewcontroller
{
  if(!_pageviewcontroller)
  {
    nsdictionary *options =[nsdictionary dictionarywithobject:[nsnumber numberwithinteger:uipageviewcontrollerspinelocationmin]
                              forkey: uipageviewcontrolleroptionspinelocationkey];
    _pageviewcontroller = [[uipageviewcontroller alloc] initwithtransitionstyle:uipageviewcontrollertransitionstylescroll
                               navigationorientation:uipageviewcontrollernavigationorientationhorizontal
                                      options:options];
    [[_pageviewcontroller view] setframe:[[self view] bounds]];
    _contentviewcontrollers = [nsmutablearray arraywithobjects:[subpage1viewcontroller new],[subpage2viewcontroller new],nil];
    // 设置uipageviewcontroller的配置项
    [_pageviewcontroller setviewcontrollers:[nsarray arraywithobjects:_contentviewcontrollers[0], nil]
                   direction:uipageviewcontrollernavigationdirectionforward
                    animated:no
                   completion:nil];
    _pageviewcontroller.delegate = self;
    _pageviewcontroller.datasource = self;
    [self addchildviewcontroller:self.pageviewcontroller];
    [self.view addsubview:self.pageviewcontroller.view];

  }
  return _pageviewcontroller;

}

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