Question

在我的设计中，有一个用于更改xib文件的按钮。谷歌一千次后，我找到了解决方案如下所示：

- (IBAction)changeButtonDidPress:(id)sender
{
    dispatch_async(dispatch_get_main_queue(), ^{
        if (self.xibChanged) {
            NSArray *nibObjs = [[NSBundle mainBundle] loadNibNamed:@"MyViewController" owner:self options:nil];
            UIView *aView = [nibObjs objectAtIndex:0];
            self.view = aView;
            self.xibChanged = NO;
        } else {
            NSArray *nibObjs = [[NSBundle mainBundle] loadNibNamed:@"CustomViewController" owner:self options:nil];
            UIView *aView = [nibObjs objectAtIndex:0];
            self.view = aView;
            self.xibChanged = YES;
        }
   });
}

但是，有一个问题：更改xib文件后视图的方向是错误的（总是肖像，无论我如何设置xib文件）！
ps：我也尝试过：
1）Change view in one XIB，运作良好，但这意味着我需要创建一个新的控制器，这是我从未想过的！
2）Single UIViewcontroller, how to switch among multiple xibs?，根本没用，有些按钮在新视图中丢失了！
所以，我发布这个问题，有人遇到过类似的问题吗？有什么好主意吗？谢谢！

Answer 1

嗯，经过一千次重试后，我找到了一个解决方法：rotate your new view that has wrong orientation。
在第一次开始时，请确保使用自动调整的xibs ，否则你应该做更多的努力！
然后将此方法添加到viewcontroller：

- (void)rotateUIView:(UIView *)aView toInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    // Get data of rotating view
    CGRect bounds = [[UIScreen mainScreen] bounds];
    CGFloat angle = 0.0f, width = 0.0f, height = 0.0f;
    switch (interfaceOrientation) {
        case UIInterfaceOrientationPortraitUpsideDown:
            angle = M_PI;
            width = bounds.size.width;
            height = bounds.size.height;
            break;
        case UIInterfaceOrientationLandscapeLeft:
            angle = -M_PI_2;
            height = bounds.size.width;
            width = bounds.size.height;
            break;
        case UIInterfaceOrientationLandscapeRight:
            angle = M_PI_2;
            height = bounds.size.width;
            width = bounds.size.height;
            break;
        case UIInterfaceOrientationPortrait:
        default:
            return;
    }

    // Rotate the view
    [aView setBounds:CGRectMake(0, 0, width, height)];
    [aView setTransform:CGAffineTransformConcat(aView.transform, CGAffineTransformMakeRotation(angle))];
}

更改xib文件后调用此方法，如下所示：

[self rotateUIView:self.view toInterfaceOrientation:[[UIApplication sharedApplication] statusBarOrientation]];

那么视图的方向是可以的！希望这也能解决你的问题！

xib文件更改后视图的方向错误

1 个答案: