zoukankan      html  css  js  c++  java
  • iOS两个强制旋转屏幕的方法

    第一个:

        // 状态栏动画持续时间
        CGFloat duration = [UIApplication sharedApplication].statusBarOrientationAnimationDuration;
        [UIView animateWithDuration:duration animations:^{
            // 修改状态栏的方向及view的方向进而强制旋转屏幕
            [[UIApplication sharedApplication] setStatusBarOrientation:_bottomView.landscapeModel ? UIInterfaceOrientationLandscapeRight : UIInterfaceOrientationPortrait];
            self.navigationController.view.transform = _bottomView.landscapeModel ? CGAffineTransformMakeRotation(M_PI_2) : CGAffineTransformIdentity;
            self.navigationController.view.bounds = CGRectMake(self.navigationController.view.bounds.origin.x, self.navigationController.view.bounds.origin.y, self.view.frame.size.height, self.view.frame.size.width);
        }];


    第二个:

    非arc:

    if ([[UIDevice currentDevice] respondsToSelector:@selector(setOrientation:)]) {
      [[UIDevice currentDevice] performSelector:@selector(setOrientation:)
      withObject:(id)UIInterfaceOrientationLandscapeRight];
      }


    arc下:

    if ([[UIDevice currentDevice] respondsToSelector:@selector(setOrientation:)]) {
                SEL selector = NSSelectorFromString(@"setOrientation:");
                NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:[UIDevice instanceMethodSignatureForSelector:selector]];
                [invocation setSelector:selector];
                [invocation setTarget:[UIDevice currentDevice]];
                int val = UIInterfaceOrientationLandscapeRight;
                [invocation setArgument:&val atIndex:2];
                [invocation invoke];
            }


  • 相关阅读:
    js面向对象的程序设计 --- 上篇(理解对象)
    js基础 之 引用类型
    js基础之--变量 作用域和内存问题
    js基础心得
    一些转载的知识点
    linux打印指定的行的内容
    R画柱形图和箱线图
    Meerkat软件
    bam文件格式说明
    STAR软件的学习
  • 原文地址:https://www.cnblogs.com/keanuyaoo/p/3315278.html
Copyright © 2011-2022 走看看