ios - 方向更改时以编程方式更改 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。搜索栏的宽度是 (200) 不是全屏。我像 MSWord 一样搜索并在搜索栏的表格 View 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。

以下是用于创建搜索栏的代码:

-(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);
    }
}

我能够创建运行良好的功能。但唯一的问题是当用户更改方向时，它没有正确设置搜索栏的宽度。
我的申请需要在本周五交付。请尽快回复我。

Answer 1

回答我的问题以关闭此线程以及帮助他人。

(1) 在 willRotateToInterfaceOrientation 中可以设置 UISearchBar 的原点。宽度为 768(纵向 iPad 的全屏宽度)，但似乎在此处设置了原点。

(2) 方向改变完成后，我们可以设置搜索栏的宽度。使用小动画，它将平滑调整大小。

(3) 我在前后方向 API 中都调用了 resetFrame，以避免 searchBar 出现一些突然的 JURK 类型。

以下是我用于我的应用程序的解决方案..

- (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);
    }
}