I have a very basic UITableController within a very basic UINavigationBar using a very basic UISearchController ( but hidesNavigationBarDuringPresentation = YES
).
The issue I have is that if the search is active the UITableView scroll is visible in the statusbar. Note that this behavior is new since IOS13 , before due to the opaque search bar this didn't happen. It looks more like an IOS bug to me than the expected behavior.
Any suggestions how to fix this ? Ideally I'd like to have the same appearance like in IOS12 and before.
IOS 13, scrolling visible in statusbar
IOS 12, search bar half way opaque: no problem
(source: generomobile.de)
#import <UIKit/UIKit.h>
@interface MyAppDelegate : UIResponder <UIApplicationDelegate,UITableViewDelegate,UITableViewDataSource,UISearchResultsUpdating>
{
UIWindow* _win;
UINavigationController* _nav;
UITableViewController* _tc;
NSMutableArray* _model;
NSArray* _filteredModel;
UISearchController* _search;
UILabel* _label;
}
@end
@implementation MyAppDelegate
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
_win=[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
UIViewController* c=[[UIViewController alloc] init];
UIView* v=c.view;
v.backgroundColor=UIColor.whiteColor;
_label=[[UILabel alloc] initWithFrame:CGRectMake(10, 100, 200, 20)];
_model=[NSMutableArray array];
_label.text=@"Tap on 'Show Table'";
[v addSubview:_label];
for (int i=0;i<200;i++) {
_model[i]=[NSString stringWithFormat:@"Item %d",i];
}
_nav=[[UINavigationController alloc] initWithRootViewController:c];
c.navigationItem.title=@"A title";
UIBarButtonItem* b=[[UIBarButtonItem alloc] initWithTitle:@"Show Table" style:UIBarButtonItemStylePlain target:self action:@selector(showTable:)];
c.navigationItem.rightBarButtonItem=b;
_tc=[[UITableViewController alloc] initWithStyle:UITableViewStylePlain];
_tc.definesPresentationContext=YES; //have to do it for other reasons
_search=[[UISearchController alloc] initWithSearchResultsController:nil];
_search.obscuresBackgroundDuringPresentation=NO; //needed to be able to tap in results
_search.hidesNavigationBarDuringPresentation=YES; //have to do it for other reasons
_search.searchResultsUpdater=self;
UITableView* tv=_tc.tableView;
tv.delegate=self;
tv.dataSource=self;
tv.tableHeaderView=_search.searchBar;
_win.rootViewController=_nav;
[_win makeKeyAndVisible];
return YES;
}
-(void)showTable:(UIBarButtonItem*)b {
[_nav pushViewController:_tc animated:YES];
}
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
_label.text=[NSString stringWithFormat:@"You selected row:%ld",(long)indexPath.row];
[_nav popViewControllerAnimated:TRUE];
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return _search.active?_filteredModel.count:_model.count;
}
-(UITableViewCell*)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString* reuse=@"whatever";
UITableViewCell* cell=[tableView dequeueReusableCellWithIdentifier:reuse];
if (cell==nil) {
cell=[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:reuse];
}
NSInteger row=indexPath.row;
cell.textLabel.text=_search.active?_filteredModel[row]:_model[row];
return cell;
}
-(void)updateSearchResultsForSearchController:(UISearchController *)searchController {
NSString* searchText=searchController.searchBar.text;
if (searchText.length==0) {
_filteredModel=_model;
} else {
NSPredicate *predicate = [NSPredicate predicateWithFormat:
@"SELF contains[c] %@",searchText];
_filteredModel=[_model filteredArrayUsingPredicate:predicate];
}
[_tc.tableView reloadData];
}
@end
int main(int argc, char * argv[]) {
@autoreleasepool {
return UIApplicationMain(argc, argv, nil, NSStringFromClass([MyAppDelegate class]));
}
}