ios開發強制橫豎屏轉換

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第一種：手動的設定介面元素的旋轉，包括狀態列、導覽列和視圖。以下代碼為從豎屏設定為橫屏，座標系是以豎屏的為基準，所以會出現負數的座標值。

 

    //設定狀態列旋轉

    [[UIApplication sharedApplication] setStatusBarOrientation:UIDeviceOrientationLandscapeRightanimated:YES];

    CGFloat duration = [UIApplication sharedApplication].statusBarOrientationAnimationDuration;

    //設定旋轉動畫

    [UIView beginAnimations:nil context:nil];

    [UIView setAnimationDuration:duration];    

    //設定導覽列旋轉

    self.navigationController.navigationBar.frame = CGRectMake(-204, 224, 480, 32);

    self.navigationController.navigationBar.transform = CGAffineTransformMakeRotation(M_PI*1.5);

    //設定視圖旋轉

    self.view.bounds = CGRectMake(0, -54, self.view.frame.size.width, self.view.frame.size.height);

    self.view.transform = CGAffineTransformMakeRotation(M_PI*1.5);

    [UIView commitAnimations]

 

第二種切換到下一個頁面強制轉橫屏

        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];

        }

 

ios開發強制橫豎屏轉換