当方向发生变化时，以编程方式更改UISearchBar的框架

Question

我有一个搜索按钮，当用户单击它时，我以编程方式显示UISearchBar。搜索栏的宽度（200）不是全屏。我像MSWord一样搜索并在搜索栏'tableview中显示内容。但是，当用户处于搜索中间并改变方向时，我应该如何控制搜索栏宽度，即self.searchDisplayController.searchBar.frame和self.searchDisplayController.searchResultsTableView.frame。

下面是用于创建搜索栏的代码段：

-(IBAction)searchBar:(id)sender 
{ 
    if(!searching) 
    { 
     searching = YES; 
     sBar.frame = CGRectMake(500, 50,250, 44); 
     [self.view addSubview:sBar]; 
     [searchController setActive:YES animated:YES]; 
     [sBar becomeFirstResponder]; 

     if((currentOrientation == UIInterfaceOrientationLandscapeLeft) || 
      (currentOrientation == UIInterfaceOrientationLandscapeRight)) 
     { 
      self.searchDisplayController.searchBar.frame = CGRectMake(755, 50, 250, 44); 
     } 
     else 
     { 
      self.searchDisplayController.searchBar.frame = CGRectMake(500, 50, 250, 44); 
     } 
    } 
} 


- (BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString{ 
    [self filterContentForSearchText:searchString scope: 
    [[self.searchDisplayController.searchBar scopeButtonTitles] objectAtIndex:[self.searchDisplayController.searchBar selectedScopeButtonIndex]]]; 

    // Return YES to cause the search result table view to be reloaded. 
    return YES; 
} 

- (BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchScope:(NSInteger)searchOption 
{ 
    [self filterContentForSearchText:[self.searchDisplayController.searchBar text] scope: 
    [[self.searchDisplayController.searchBar scopeButtonTitles] objectAtIndex:searchOption]]; 

    // Return YES to cause the search result table view to be reloaded. 
    return YES; 
} 

- (void)searchDisplayControllerDidBeginSearch:(UISearchDisplayController *)controller{ 
    /* 
    Bob: Because the searchResultsTableView will be released and allocated automatically, so each time we start to begin search, we set its delegate here. 
    */ 
    [self.searchDisplayController.searchResultsTableView setDelegate:self]; 
    [self.searchDisplayController.searchResultsTableView setBackgroundColor:[UIColor colorWithRed:1 green:1 blue:204/255.0 alpha:1.0]]; 
} 

- (void)searchDisplayControllerDidEndSearch:(UISearchDisplayController *)controller{ 
    /* 
    Hide the search bar 
    */ 

    float animateTime = 0.3; 
    CGRect viewFrame = sBar.frame; 
    viewFrame.origin.y -= (viewFrame.size.height); 

    [UIView beginAnimations:nil context:NULL]; 
    [UIView setAnimationDuration:animateTime]; 

    sBar.frame = viewFrame; 

    [UIView commitAnimations]; 
    [self performSelector:@selector(animationDone) withObject:nil afterDelay:0.3]; 

} 

-(void)animationDone 
{ 
    [sBar removeFromSuperview]; 
    searching = NO; 
} 


-(void)searchDisplayController:(UISearchDisplayController *)controller didShowSearchResultsTableView:(UITableView *)tableView 
{ 
    if((currentOrientation == UIInterfaceOrientationLandscapeLeft) || 
     (currentOrientation == UIInterfaceOrientationLandscapeRight)) 
    { 
     tableView.frame = CGRectMake(755, 100, 250, 400); 
    } 
    else 
    { 
     tableView.frame = CGRectMake(500, 100, 250, 400); 
    } 
} 



- (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation 
           duration:(NSTimeInterval)duration 
{ 
    [super willRotateToInterfaceOrientation:toInterfaceOrientation duration:duration]; 
    currentOrientation = toInterfaceOrientation; 



    if((currentOrientation == UIInterfaceOrientationLandscapeLeft) || 
     (currentOrientation == UIInterfaceOrientationLandscapeRight)) 
    { 

     //Search 
     btnSearch.frame = CGRectMake(920, 5, 40, 40); 

     self.searchDisplayController.searchBar.frame = CGRectMake(755, 50, 250, 44); 
     self.searchDisplayController.searchResultsTableView.frame = CGRectMake(755, 100, 250, 400); 
    } 
    else 
    { 

     //Search 
     btnSearch.frame = CGRectMake(666, 5, 40, 40); 

     self.searchDisplayController.searchBar.frame = CGRectMake(500, 50, 250, 44); 
     self.searchDisplayController.searchResultsTableView.frame = CGRectMake(500, 100, 250, 400); 
    } 
} 

我能够创建和工作正常功能。但唯一的问题是，当用户更改标志不正确设置搜索栏的宽度。 我的申请需要在星期五递交。请尽快回复我。

Answer 1

回答我的问题以关闭此主题以及帮助他人。

（1）在willRotateToInterfaceOrientation中它能够设置UISearchBar的原点。宽度是768（纵向iPad的全屏宽度），但起源似乎在这里设置。 （2）方向更改完成后，我们可以设置搜索栏宽度。随着小动画，它将平稳调整大小。

（3）我在前&后定位API调用resetFrame，以避免一些突发的JURK类型的searchBar。

下面是我用我的应用程序解决方案..

- (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation 
           duration:(NSTimeInterval)duration 
{ 
    [super willRotateToInterfaceOrientation:toInterfaceOrientation duration:duration]; 
    currentOrientation = toInterfaceOrientation; 



    [self resetSearchResourcesFrames]; // Set the origin of UISearchBar 
} 

- (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation 
{ 
    [super didRotateFromInterfaceOrientation:fromInterfaceOrientation]; 
    [UIView beginAnimations:@"" context:nil]; //Animation for smooth resizing of search tableview only 
    [UIView setAnimationDuration:0.2]; 
    [self resetSearchResourcesFrames]; // Width rotation only possible after rotation 
    [UIView commitAnimations]; 
} 

-(void)resetSearchResourcesFrames 
{ 
    if(([buttonGridViewController sharedInstance].currentOrientation == UIInterfaceOrientationLandscapeLeft) || 
     ([buttonGridViewController sharedInstance].currentOrientation == UIInterfaceOrientationLandscapeRight)) 
    { 
     //Search 
     btnSearch.frame = CGRectMake(920, 5, 40, 40); 

     self.searchDisplayController.searchBar.frame = CGRectMake(755, 50, 250, 44); 
     self.searchController.searchResultsTableView.frame = CGRectMake(755, 100, 250, 400); 
    } 
    else 
    { 
     //Search 
     btnSearch.frame = CGRectMake(666, 5, 40, 40); 

     self.searchDisplayController.searchBar.frame = CGRectMake(500, 50, 250, 44); 
     self.searchController.searchResultsTableView.frame = CGRectMake(500, 100, 250, 400); 
    } 
}