在 UIViewController 中重新加载数据


调整

大小后如何刷新UIViewController视图?我需要一种类似于UITableViewController reloadData的方法。

是否有其他可能性可以在不重新加载的情况下调整UIViewController视图的大小?

我的代码是:

-(void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration
{
    orientation = toInterfaceOrientation;
    if(orientation==3 || orientation==4)
    {
        heightBoxDimension1 = [GlobalData sharedGlobalData].heightLandscape;
        widthBoxDimension1 = [GlobalData sharedGlobalData].widthLandscapeBig;
        widthBoxDimension2 = [GlobalData sharedGlobalData].widthLandscapeSmall;
    }
    else 
    {
        heightBoxDimension1 = [GlobalData sharedGlobalData].heightPortrait;
        widthBoxDimension1 = [GlobalData sharedGlobalData].widthPortraitBig;
        widthBoxDimension2 = [GlobalData sharedGlobalData].widthPortraitSmall;
    }
    for(UIView* view in self.view.subviews)
    {
        NSLog(@"%.0f %.0f %.0f %.0f ", view.frame.origin.x, view.frame.origin.y, view.frame.size.width, view.frame.size.height);
        if(view.frame.size.width >400)
        {
            [view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, widthBoxDimension1, heightBoxDimension1)];
            NSLog(@"%.0f %.0f %.0f %.0f ", view.frame.origin.x, view.frame.origin.y, view.frame.size.width, view.frame.size.height);
        }
        else
        {
            [view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, widthBoxDimension2, heightBoxDimension1)]; 
            NSLog(@"%.0f %.0f %.0f %.0f ", view.frame.origin.x, view.frame.origin.y, view.frame.size.width, view.frame.size.height);
        }
    }
    [self.view setNeedsDisplay];
}

有一类全局变量,我在其中放置视图的静态尺寸,我有两种类型的视图,高度相同但宽度不同。 当转动模拟器时,输入此方法,但在更改视图框架后,不要重新加载这些视图...

控制台的输出为:

2012-06-05 10:53:09.309 TemplateiPad2[12561:207] 8 8 752 318 
2012-06-05 10:53:09.309 TemplateiPad2[12561:207] 8 8 752 446 
2012-06-05 10:53:09.309 TemplateiPad2[12561:207] 8 334 372 318 
2012-06-05 10:53:09.309 TemplateiPad2[12561:207] 8 334 372 446 

做好重新构图,但不要重新加载。

尝试

[self.view setNeedsDisplay];

这将为您解决问题!

[self.view setNeedsDisplay]; 

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