Scroll The Content Of View

Code To Scroll The Content of View


//First of all make scroll view and connect it
//in .h file



@property(nonatomic,retain)IBOutlet UIScrollView *srlView;



//in .m file


[self scrollViewToCenterOfScreen:self.view];


//Scroll the view
- (void)scrollViewToCenterOfScreen:(UIView *)theView 
{
    CGFloat viewCenterY = theView.center.y;
    CGRect applicationFrame = [[UIScreen mainScreen] applicationFrame];
    CGFloat availableHeight = applicationFrame.size.height - 250; // Remove area covered by keyboard
    CGFloat y = viewCenterY - availableHeight / 2.0;
    if (y < 0) {
        y = 0;
    }
    [srlView setContentOffset:CGPointMake(0, y) animated:YES];
}




Comments

Post a Comment

Popular posts from this blog

Hacker Rank problem solution

1. Sort Item based on the  column  : - ( void ) viewDidLoad {     [ super viewDidLoad ];     // Do any additional setup after loading the view, typically from a nib.     NSArray *ary = [ self fetchItemsToDisplay : @[ @"Item4,10,15" , @"Item2,3,4" , @"Item3,17,8" ] sortParameter : @(1) sortOrder : @(0) itemPerPage : @(2) pageNumber : @(1) ];     NSLog ( @"%@" ,ary);      } - ( NSArray *) fetchItemsToDisplay :( NSArray *)items sortParameter :( NSNumber *)sortParameter sortOrder :( NSNumber *)sortOrder itemPerPage :( NSNumber *)itemPerPage pageNumber :( NSNumber *)pageNumber {          NSMutableArray *itemArray = [ NSMutableArray new ];          for ( int i = 0 ; i<items. count ; i++) {         NSString *item = items[i];         NSArray *itemDetails = [item componentsSeparatedByString : @"," ];                  ItemModel *itemModel = [[ ItemModel alloc ] init ];  
Read more

How to Make REST api call in Objective-C.

We can call using this. NSString * twitterUrl = @ "YourUrlString" ; NSString * resp = [ self makeRestAPICall : twitterUrl ]; and method is -( NSString *) makeRestAPICall : ( NSString *) reqURLStr { NSURLRequest * Request = [ NSURLRequest requestWithURL :[ NSURL URLWithString : reqURLStr ]]; NSURLResponse * resp = nil ; NSError * error = nil ; NSData * response = [ NSURLConnection sendSynchronousRequest : Request returningResponse : & resp error : & error ]; NSString * responseString = [[ NSString alloc ] initWithData : response encoding : NSUTF8StringEncoding ]; NSLog (@ "%@" , responseString ); return responseString ; } 1 2 3 4 @ interface ViewController : UIViewController < NSURLConnectionDelegate > {      NSMutableData * _responseData ; }
Read more

Building and Running Python Scripts with Xcode

Hi, If you want to run python file from xcode, you can follow this link which I have followed.  https://medium.com/sourleangchhean/using-xcode-to-execute-pythons-code-98be65c1ea8a Here is few steps which I have done.   Download and install python (If not already downloaded)(I have downloaded 3.9 version) Check if it available in at /usr/local/bin/python3 Right Click on Python3 then select Show Original Get in to that location in terminal. (Open terminal type cd and drag drop that location file) in my case path is " cd /Library/Frameworks/Python.framework/Versions/3.9/bin/"  Type "ln python3.9 python39" This is for terminal part. Now create new xcode project  File > New > Project > Cross-platform > External Build System > Next Enter Name and  Enter a name (e.g. PythonLearning), and enter the path from  above Step(i.e  /usr/local/bin/python3 ) into the “Build Tool” line. Click Next.  Create a Python file Choose File > New, select macOS > Other &g
Read more