IOS7相关问题记录

如果使用nav 则很容易与内容值重叠，因此，需要增加这几行代码。关键是这句

self.edgesForExtendedLayout = UIRectEdgeNone;

表示将IOS边框扩展设置为none

 

- (void)viewDidLoad

{

    [super viewDidLoad];

    if ([CommonUtil systemVersion] >= 7) {

        CGRect frame=self.view.frame;

        if (frame.size.height==[[NSUserDefaults standardUserDefaults] floatForKey:@"windowHeight"])

        {

            frame.size.height-=20;

        }

        self.view.frame=frame;

        self.edgesForExtendedLayout = UIRectEdgeNone;

        self.automaticallyAdjustsScrollViewInsets = YES;

        self.navigationController.navigationBar.translucent = NO;

        self.tabBarController.tabBar.translucent = NO;

    }

}

------------------

通过cell去找indexPath的方法，原来是这样

 

SDGroupCell *cell = (SDGroupCell *)[(UIView *)[sender superview] 

 

NSIndexPath *indexPath = [self.baseTableView indexPathForCell:cell];

但实际上，IOS貌似不支持这样查询，要查的话用以下方式

UIView *view = sender;

    while (![view isKindOfClass:[UITableViewCell class]]) {

        view = [view superview];

}

 

    NSIndexPath *indexPath = [self.baseTableView indexPathForCell:(UITableViewCell *)view];

-----------------

 

http://stackoverflow.com/questions/19355182/sdnestedtable-expand-does-not-work-on-ios-7/19355366#19355366

原来的SDNestedTable的工具类，由于在初次进去的时候无法很好地进行展开cell里的隐藏位置，升到IOS7无法使用，因此要进行修改（红色字）：

//The issue is that expanded index paths are stored in NSDictionary, where NSIndexPath is key. In iOS 7 method -(CGFloat)tableView:heightForRowAtIndexPath: receivesUIMutableIndexPath object instead of NSIndexPath object. So value from dictionary can't be retrieved. Here is this method in SDNestedTableViewController.m:

 

- (CGFloat) tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath

{

    //IOS7 的处理是先获取NSIndexPath 的key 因为在字典里找不到，因此要这样做

 

     NSIndexPath *indexPathKey = [NSIndexPath indexPathForRow:indexPath.row inSection:indexPath.section];

   BOOL isExpanded = [[expandedIndexes objectForKey: indexPath] boolValue];

    if(isExpanded)

    {

        //第一次进入时，先看cell的大小是否合适

        if(itemCellButtonFisrtDrop == 0){

            [self getCellButtonHeight:indexPathKey];

            itemCellButtonFisrtDrop ++;

        }

        return [self geTotleCelltHeight] + 1+30+itemCellButtonViewHeight;

    }

    return [self geCelltHeight];

    

} 

-----------------

原来不用加红色这段，都能有导航出来，现在可能要加了

 UINavigationController *nav = [[UINavigationControlleralloc]initWithRootViewController:userBillRequestVC];

    if ([[UIDevicecurrentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone)

    {

        [selfpresentModalViewController:nav animated:YES];

 

    }

------------------

uisearchbar 中的层次结构变化了，原来IOS7之前是UISearchBar的subviews是UISearchBarBackground、UISearchBarTextField。而现在IOS7却只有一个uiview，仔细再观察这个uiView，发现苹果将UISearchBarBackground、UISearchBarTextField都封装在一个UIView里，因此，如果要改变其背景图片，可以用以下方法：

if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7.0) {

                

                subviews = [[billSearchBar.subviews objectAtIndex:0] subviews];

                

            }else{

                

                subviews = billSearchBar.subviews;

                

            }

            for (UIView *subview in subviews)

            {  

                if ([subview isKindOfClass:NSClassFromString(@"UISearchBarBackground")])

                {  

                    [subview removeFromSuperview];  

                    break;  

                }  

            }

            

            [searchToolBar addSubview:billSearchBar];

            //为UISearchBarTextField设置背景图片

            UIView *segment = [subviews count]>0 ? [subviews objectAtIndex:1]: [subviews objectAtIndex:0];

            

            UIImageView *bgImage = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"search_bar_text_bg"]];

 

            [segment addSubview:bgImage];