Remove SeparatorInset on iOS 8 UITableView for Xcode 6 iPhone Simulator

Question

I found a weird white space on UITableView for iPhone 6 Simulator (iOS 8) on Xcode 6 GM. I have tried to set the SeparatorInset fr

Answer 1

IOS8 introduce a new concept named Configuring Content Margins , a new property named layoutMargins is also introduced , for the details of the property , please refer to the Apple Doc . The type of layoutMargins is UIEdgeInsets , by default the value is {8,8,8,8} . To remove the seperator line of TableView in IOS8 , in addition to set tableView.seperatorInset = UIEdgeInsetsZero , you must also do as :

First define the macro

#define isIOS8SystemVersion (NSFoundationVersionNumber > NSFoundationVersionNumber_iOS_7_1)

In the UITableViewDelegate method add :

    - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
    {
         static NSString *reuseId = @"cellReuseID" ;
         UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:reuseId];
         if(!cell){
             cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:reuseId];     
         if(isIOS8SystemVersion){   
             cell.layoutMargins = UIEdgeInsetsZero;
             cell.preservesSuperviewLayoutMargins =NO ;
         }

    }

Doing these will remove the seperator line . You can also do as follow :

    UITableView *tableView = [[UITableView alloc] init];
    if(isIOS8SystemVersion){
         tableView.layoutMargins = UIEdgeInsetsZero ;
    }

and in the UITableViewDelegate method add :

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
     static NSString *reuseId = @"cellReuseID" ;
     UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:reuseId];
     if(!cell){
         cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:reuseId];     
     if(isIOS8SystemVersion){   
         cell.layoutMargins = UIEdgeInsetsZero;
     }
}