在ios8中做的屏幕旋转功能

浏览数：26 / 时间：2015年06月11日

http://www.cnblogs.com/smileEvday/archive/2013/04/24/Rotate2.html

思路出自这篇博主的文章。

直接上代码

-(void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration
{
    NSLog(@"你旋转了");
    if (toInterfaceOrientation ==UIInterfaceOrientationLandscapeLeft ) {
        [self addSegmentControl:UIInterfaceOrientationLandscapeLeft];
        [self.segementControl_base addTarget:self action:@selector(clickOnSegment:) forControlEvents:UIControlEventValueChanged];
        [self initData];
        [self initLrc];


    }
    else if(toInterfaceOrientation == UIInterfaceOrientationLandscapeRight)
    {
               [self addSegmentControl:UIInterfaceOrientationLandscapeRight];
        [self.segementControl_base addTarget:self action:@selector(clickOnSegment:) forControlEvents:UIControlEventValueChanged];
        [self initData];
        [self initLrc];

    }
    else
    {
        [self addSegmentControl:UIInterfaceOrientationPortrait];
        [self.segementControl_base addTarget:self action:@selector(clickOnSegment:) forControlEvents:UIControlEventValueChanged];
        [self initData];
        [self initLrc];

    }
}

通过给对应的segment传入当前的旋转状态来设置segment在旋转到不同的方向时加载的数据

-(void)addSegmentControl:(UIInterfaceOrientation)toInterfaceOrientation
{
    [self.segementControl_base removeFromSuperview];
    NSArray *segmentArray  = [NSArray arrayWithObjects:@"基本课文",@"应用课文" ,@"单词",nil];
   UISegmentedControl * segmentControl = [[UISegmentedControl alloc]initWithItems:segmentArray];
    self.segementControl_base = segmentControl;
#warning 判断旋转方式
    if(UIInterfaceOrientationLandscapeLeft == toInterfaceOrientation){
        segmentControl.frame = CGRectMake(0, self.navigationController.navigationBar.frame.size.height, self.view.frame.size.width, self.view.frame.size.height*0.1);
    }else if(toInterfaceOrientation == UIInterfaceOrientationPortrait){
        segmentControl.frame = CGRectMake(0, 67, self.view.frame.size.width, self.view.frame.size.height*0.07);
    }
    else if (toInterfaceOrientation == UIInterfaceOrientationLandscapeRight)
    {
        segmentControl.frame  = CGRectMake(0, self.navigationController.navigationBar.frame.size.height, self.view.frame.size.width, self.view.frame.size.height*0.1);
    }
        segmentControl.selectedSegmentIndex = tags;
//    [segmentControl addTarget:self action:@selector(onSegmentedControlChanged:) forControlEvents:UIControlEventValueChanged];
    [self.view addSubview:segmentControl];
}