UISearchBar - 触摸时不显示键盘
问题描述:
当我触摸我的iphone应用程序中的UISearchBar时,键盘未显示。我是否必须在touchesBegan中使用[searchBar becomeFirstResponder]之类的内容?UISearchBar - 触摸时不显示键盘
我有searchBarShouldBeginEditing返回YES。
我已经尝试使用[seachBar becomeFirstResponder],我的代理被调用,因为我期望。我看到有一个UISearchDisplayController,但我认为也许UISearchBar很容易实现。
我的自定义控制器类是UIViewController的一个子类。
UIImageView *topImage = [[UIImageView alloc] initWithImage:
[UIImage imageWithContentsOfFile:
[myBundle pathForResource:@"top_header"
ofType:@"png"inDirectory:@"Images/facebook_friend"]]];
CGRect viewRect = CGRectMake(0, 0, 320, 480);
UIView* myView = [[UIView alloc] initWithFrame:viewRect];
self.tableView = [[UITableView alloc] initWithFrame:CGRectMake(0, 100, 320, 310)
style:UITableViewStylePlain];
self.tableView.bounces = YES;
UIImageView *bottomImage = [[UIImageView alloc] initWithImage:
[UIImage imageWithContentsOfFile:
[myBundle pathForResource:@"bottom_background" ofType:@"png"
inDirectory:@"Images/facebook_friend"]]];
bottomImage.center = CGPointMake(bottomImage.center.x, 480-bottomImage.frame.size.height);
// so that we can push a button inside it
self.searchBar = [[UISearchBar alloc] initWithFrame:CGRectMake(0,70,320,0)];
[searchBar setPlaceholder:@"Search"];
[searchBar setDelegate:self];
tableView.autoresizingMask = UIViewAutoresizingFlexibleHeight|UIViewAutoresizingFlexibleWidth;
tableView.delegate = self;
tableView.dataSource = dataSource;
[tableView reloadData];
UIButton *backButton = [UIButton buttonWithType:UIButtonTypeCustom];
[backButton setFrame:CGRectMake(0, 0, 76, 43)];
backButton.center = CGPointMake(210, 40);
[backButton setBackgroundImage:[UIImage imageNamed:@"Images/facebook_friend/back-button.png"]
forState:UIControlStateNormal];
[backButton addTarget:self action:@selector(backClick:)
forControlEvents:UIControlEventTouchUpInside];
// spinner to show we're loading
self.spinner = [[UIActivityIndicatorView alloc]initWithFrame:CGRectMake(125,100,50,50)];
[spinner setActivityIndicatorViewStyle:UIActivityIndicatorViewStyleGray];
[tableView addSubview:spinner];
// top search section
[myView addSubview:topImage];
[topImage addSubview:searchBar];
// friend list
[myView addSubview:tableView];
// bottom button section
[bottomImage addSubview:backButton];
[bottomImage addSubview:postButton];
[myView addSubview:bottomImage];
[topImage setUserInteractionEnabled:YES];
[bottomImage setUserInteractionEnabled:YES];
[myView setUserInteractionEnabled:YES];
self.view = myView;
编辑:孙9:50 AM
如果我把所有的子视图出来,只是添加MyView的与搜索栏,我只看到了MyView的触摸事件。但是,如果我只是设置
self.view=searchBar
然后触摸搜索栏调出键盘。这是一个很小的例子:
CGRect viewRect = CGRectMake(0, 0, 320, 480);
UIView* myView = [[UIView alloc] initWithFrame:viewRect];
self.searchBar = [[UISearchBar alloc] initWithFrame:CGRectMake(0,70,320,0)];
[searchBar setPlaceholder:@"Search"];
[myView addSubview:searchBar];
self.view = myView;
答
我的UISearchBar的高度为0,这就是为什么当我点击时它没有显示键盘。
这真的很奇怪的错误,就好像你只是放置搜索栏,并没有定义委托或任何方法,然后它显示键盘上的搜索栏文本字段。你确定你没有做一些不寻常的事情吗?你能张贴一些猜测吗? XIB截图? – Deeps