AQGridview不调用数据源方法
我正在尝试基于 /examples 文件夹中的 ImageDemo 实现 AQGridView 。我有一个具有以下声明的视图控制器：
@interface ImageDemoViewController : UIViewController <AQGridViewDelegate, AQGridViewDataSource, ImageDemoCellChooserDelegate>
{
...
我的视图控制器中没有任何数据源方法
- (NSUInteger) numberOfItemsInGridView: (AQGridView *) aGridView
{
return ( [images count] );
}
被调用。这是我设置 gridview 的地方，使我的视图控制器成为 gridview 的委托。
- (void)viewDidLoad
{
[super viewDidLoad];
self.gridView.autoresizingMask = UIViewAutoresizingFlexibleWidth|UIViewAutoresizingFlexibleHeight;
self.gridView.autoresizesSubviews = YES;
self.gridView.delegate = self;
self.gridView.dataSource = self;
images=[[NSMutableArray alloc]init];
[images addObject:@"http://t3.gstatic.com/images?q=tbn:ANd9GcTOXAzFMoK441mcn9V0OemVe_dtAuCpGjBkLrv4rffyOjYIo45BEw"];
[self.gridView reloadData];
}
如果我设置断点，
[self.gridView reloadData];
就会执行该行，但不会调用 AQGridView 中的 reloadData 方法。与 ImageDemo 的唯一区别是我没有视图控制器的 .xib 文件。我是否忘记连接某些东西，导致数据源方法未被调用？
I am trying to implement AQGridView based upon the ImageDemo in the /examples folder. I have a view controller with the following declaration:
@interface ImageDemoViewController : UIViewController <AQGridViewDelegate, AQGridViewDataSource, ImageDemoCellChooserDelegate>
{
...
None of the datasource methods in my view controller such as
- (NSUInteger) numberOfItemsInGridView: (AQGridView *) aGridView
{
return ( [images count] );
}
are being called. Here is where I setup the gridview making my view controller the delegate for the gridview.
- (void)viewDidLoad
{
[super viewDidLoad];
self.gridView.autoresizingMask = UIViewAutoresizingFlexibleWidth|UIViewAutoresizingFlexibleHeight;
self.gridView.autoresizesSubviews = YES;
self.gridView.delegate = self;
self.gridView.dataSource = self;
images=[[NSMutableArray alloc]init];
[images addObject:@"http://t3.gstatic.com/images?q=tbn:ANd9GcTOXAzFMoK441mcn9V0OemVe_dtAuCpGjBkLrv4rffyOjYIo45BEw"];
[self.gridView reloadData];
}
If I set a breakpoint on
[self.gridView reloadData];
the line is executed but reloadData method in AQGridView is not called. The only difference from the ImageDemo is I do not have a .xib file for the view controller. Have I forgotten to hook up something, resulting in the datasource methods not being called?
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评论（3）
如果没有 XIB，那么谁来创建 gridView？如果它从未被创建，那么它将是 NIL，并且您将具有您所描述的行为。 （如果是这样，那么只需添加：
self.gridview = [AQGridView alloc] initWithFrame: ...];应该足够了。If there's no XIB, then who's creating the gridView? If it's never created, then it would be NIL, and you'd have the behavior you describe. (If that's it, then just adding:
self.gridview = [AQGridView alloc] initWithFrame: ...];should suffice.有同样的问题。通过用 AQGridView替换视图来解决。
[self.view addSubview:self.gridView]完整方法：
Had the same problem. Solved by replacing the view with the AQGridView.
[self.view addSubview:self.gridView]Full method:
也许你可以尝试实现这个：
Maybe you could try implementing this: