我有一个正常运行的 UISearchBar - 如果我点击“搜索”或“取消”,键盘就会消失。
但是,当我在我的导航堆栈上推送一个新的 View Controller 时,如果键盘打开,它不会关闭。它保留在旧 View Controller 中,如果我导航回它,键盘仍会显示。
我很困惑,因为我的 searchBarShouldEndEditing 方法按预期被调用,而我确实 [activeSearchBar resignFirstResponder]。这适用于“搜索”或“取消”,但不适用于由 View 消失触发的情况。
我的委托(delegate)代码:
#pragma mark Search bar delegate methods__________________________
- (BOOL)searchBarShouldBeginEditing:(UISearchBar *)activeSearchBar
{
NSLog(@"searchBarShouldBeginEditing");
[activeSearchBar setShowsCancelButton:TRUE animated:YES];
if (!showSearchType)
return TRUE;
if([UIView respondsToSelector:@selector(animateWithDuration:animations:)]) {
// iOS 4.0 and later
[UIView animateWithDuration:0.3 animations:^ {
searchTypeView.frame = CGRectMake(0, 44, 320, 69);
searchTypeView.bounds = CGRectMake(0, 0, 320, 69);
grayBg.alpha = 0.6;
}];
} else {
// Before iOS 4.0
searchTypeView.frame = CGRectMake(0, 44, 320, 69);
searchTypeView.bounds = CGRectMake(0, 0, 320, 69);
grayBg.alpha = 0.6;
}
self.frame = CGRectMake(0, 0, 320, 113);
[self bringSubviewToFront:searchTypeView];
[self bringSubviewToFront:activeSearchBar];
return TRUE;
}
- (BOOL)searchBarShouldEndEditing:(UISearchBar *)activeSearchBar
{
NSLog(@"searchBarShouldEndEditing");
if ([activeSearchBar isFirstResponder]) {
NSLog(@"activeSearchBar isFirstResponder");
}
[activeSearchBar resignFirstResponder];
[activeSearchBar setShowsCancelButton:FALSE animated:YES];
if (!showSearchType)
return TRUE;
if([UIView respondsToSelector:@selector(animateWithDuration:animations:)]) {
// iOS 4.0 and later
[UIView animateWithDuration:0.3 animations:^ {
searchTypeView.frame = CGRectMake(0, 9, 320, 69);
searchTypeView.bounds = CGRectMake(0, 0, 320, 0);
grayBg.alpha = 0;
}];
} else {
// Before iOS 4.0
searchTypeView.frame = CGRectMake(0, 9, 320, 69);
searchTypeView.bounds = CGRectMake(0, 0, 320, 0);
grayBg.alpha = 0;
}
self.frame = CGRectMake(0, 0, 320, 44);
return TRUE;
}
- (void)searchBarTextDidEndEditing:(UISearchBar *)activeSearchBar {
NSLog(@"searchBarTextDidEndEditing");
if ([activeSearchBar isFirstResponder]) {
NSLog(@"activeSearchBar isFirstResponder");
}
[activeSearchBar resignFirstResponder];
}
- (void)searchBarCancelButtonClicked:(UISearchBar *)activeSearchBar
{
NSLog(@"searchBarCancelButtonClicked");
[activeSearchBar resignFirstResponder];
}
- (void)searchBarSearchButtonClicked:(UISearchBar *)activeSearchBar
{
NSLog(@"searchBarSearchButtonClicked");
self.query = searchBar.text;
[activeSearchBar resignFirstResponder];
[searchView startSearch];
}
这个输出:
2011-12-07 20:00:33.061 MyApp[55725:307] searchBarShouldEndEditing
2011-12-07 20:00:33.063 MyApp[55725:307] activeSearchBar isFirstResponder
2011-12-07 20:00:33.066 MyApp[55725:307] searchBarTextDidEndEditing
感谢任何想法!
最佳答案
您还可以:在您的 .h 文件中声明 searchBar 变量,创建属性等...然后在您的按钮点击事件方法上,推送另一个 View ,写第一行:
[yourSearchBar resignFirstResponder];
关于iphone - 移动到另一个 View Controller 时,UISearchBar 不会在 resignFirstResponder 上隐藏键盘,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/8424848/