如何实现splitview for iphone os 4.2？ [英] How implement splitview for iphone os 4.2?

问题描述

我在我的应用程序中使用了自定义splitview。

I have use the custom splitview in the my application.

自定义splitview .h文件

custom splitview .h file

@interface CustomUISplitViewController :UISplitViewController {

BOOL keepMasterInPortraitMode;
BOOL  keepMasterInPortraitMode1;
 }

和.m文件

-(void) viewWillAppear:(BOOL)animated {

    keepMasterInPortraitMode1=keepMasterInPortraitMode;
    if(keepMasterInPortraitMode1 == NO) {
        if (self.interfaceOrientation == UIInterfaceOrientationLandscapeLeft || self.interfaceOrientation == UIInterfaceOrientationLandscapeRight) {
            UIViewController* master = [self.viewControllers objectAtIndex:0];
            UIViewController* detail = [self.viewControllers objectAtIndex:1];
            [self setupPortraitMode:master detail:detail];      
        }
    }

    if (self.interfaceOrientation == UIInterfaceOrientationPortrait || self.interfaceOrientation == UIInterfaceOrientationPortraitUpsideDown) {
        UIViewController* master = [self.viewControllers objectAtIndex:0];
        UIViewController* detail = [self.viewControllers objectAtIndex:1];
        [self setupPortraitMode:master detail:detail];
      } 
     }
}

 - (void)setupPortraitMode:(UIViewController*)master detail:(UIViewController*)detail {
    //adjust master view
    CGRect f = master.view.frame;
    f.size.width = 220;
    f.size.height = 1024;
    f.origin.x = 0;
    f.origin.y =0;

    [master.view setFrame:f];

    //adjust detail view
    f = detail.view.frame;
    f.size.width = 548;
    f.size.height = 1024;
    f.origin.x = 221;
    f.origin.y = 0;

    [detail.view setFrame:f];
}

这在iOS4.0下正常工作但在4.2下我只看到一个视图该应用运行。 OS版本之间可能有什么变化？

This works correctly under iOS4.0 but under 4.2 I see only one view when the app runs. What could change between OS versions?

推荐答案

我的应用程序遇到了完全相同的问题。我使用了相同的Subclassing技术，在Portrait和Landscape模式下都可以看到Master和Detail。工作得很好，直到4.2，遗憾的是我没有测试Beta版本何时可用。

I have had the exact same problem with my applications. I had used the same Subclassing technique to have the Master and Detail visible in both Portrait and Landscape modes. Worked great until 4.2 which, unfortunately I didn't test for when the Beta releases were available.

我建议尝试优秀的MGSplitViewController（ http://mattgemmell.com/2010/07/31/mgsplitviewcontroller-for-ipad ）。它是UISplitViewController的开源实现。唯一的缺点是它在Interface Builder中使用起来并不那么容易，但它包含一个示例项目。在视觉上它与UISplitViewController相同，但增加了对几个附加功能的支持，例如在运行时拖动分割位置。

I recommend trying the excellent MGSplitViewController (http://mattgemmell.com/2010/07/31/mgsplitviewcontroller-for-ipad). It is an open-source implementation of the UISplitViewController. It's only drawback is that it isn't quite as easy to use in Interface Builder, but it includes a sample project. Visually it is identical to UISplitViewController, but adds support for several extras such as dragging the split position at runtime.

只需将其实现为UISplitViewController，但在某处添加以下行：

Just implement it exactly as your UISplitViewController but add the following line somewhere:

[splitViewController setShowsMasterInPortrait:YES];

这与Apple禁止在其版本中使用的私有API非常相似。

This is very similar to the Private API that Apple prohibits using with their version.

//[splitViewController setHidesMasterViewInPortrait:NO];  // Naughty, Naughty, Not allowed by the Apple police

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