Creating and Configuring a Table View – iPhone
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Table View:
Table views are versatile, user interface objects frequently found in iOS apps. A table view presents data in a scrollable list of multiple rows that may be divided into sections.
Table views have many purposes:
- To let users navigate through hierarchically structured data.
- To present an indexed list of items.
- To display detail information and controls in visually distinct groupings.
- To present a selectable list of options.
.h file:-
@ interface TableviewController: UIviewController
<UITableviewDelegate, UITableviewDataSource>
{
IBoutlet UITableview * table view;
NSMutableArray * Names;
NSMutableArray * Contacts;
Int count;
}
@ end
.m file:-
-(void) viewDidLoad
{
Tableview. backgroundColor = [ UIColor ClearColor];
Names= [ NSMutableArray arraywithObjects:
@ “divya”,@ “vamshi”, @ “sony” @ “santhu”, @ “nani”, nil];
Contacts = [NSMutableArray arraywithObjects:
@ “123”, @ “456”, @ “789”, @ “101112”, @ “131415”, nil];
[Super viewDidLoad];
}
(NSInteger) numberofSectionInTableview:(UITableview * table view{
return 2;
}
-(NSInteger) table view:(UITable view *) table view
NumberofRowsInSection : (NSInteger)Section
{
If (Section = = 0)
return [ Names Count];
else
return [ Contacts Count];
}
( CGFloat) table view: (UITable view *) tableview
titleForHeaderInSection: (NSInteger) Section
{
If ( Section = = 0)
return @ “NAMES”;
else
return @ “Contact No”;
}
-(CGFloat) table view : (UITableView *) table view
HeightForRowAtIndexpath : ( NSIndex path *)
IndexPath
{
return 60;
}
-( UITableviewCell *) table view 
UITableview *)
table view cellForRowAtIndexPath (NSIndex path *) index path
{
Static NSString * cell ident = @ “cell”;
UITable view cell * cell = [table view Reusable cell with Indentifier: Celident ];
If (cell = = nil)
{
Cell = [[[ UITableviewcell alloc] initWithFrame:
CGRectZero reuseIdentifier: cellident] autorelease];
Cell. SelectionStyle = UITableviewcellSelectionStyleBlue;
}
else
{
For (UIView * view in cell. Subviews)
{
If([ view is kindOfClass: [ UILabel Class]]
[ view is kindOfClass: [ UIImageview class]])
{
[ view removeFromSuperview];
}
}
}
If (indexpath .Section = = 0)
{
Cell. textLabel. text = [ Names objectAtIndex: indexpath row]
}
else
{
Cell .textLabel .text =[ contacts ObjectAtIndex: indexpathrow)
}
return cell;
}
Table view custom view:-
.h file:-
# import <UIKIT/UIKIT .h>
@ interface div table view controller : UIViewController
{
NSMutableArray *a Array;
IBoutlet UITableview * tables;
}
@ end
.m file:-
@ implementation divtableviewController
-(void) viewDidLoad
{
Self . view .backgroundColor = [UIColor blackColor];
Table . backgroundColor = [UIColor ClearColor];
array = [[ NSMutableArray alloc] initwithObjects:
@ “red”, @ “orange”, @ “blue”, , nil];
[Super view DidLoad];
}
# Program Mark Table View Data Source Methods
-(NSInteger) numberofSectionInTableview: (UITable view *) table view
{
Return 1 ;
}
-(NSInteger) table view: (UITableview *) tableview
NumberofRowsInSection : (nsInteger)Section
{
return [aArray Count];
}
-(CGFloat) table view: ( UITable view *) tableview
HeightForRowAtIndexpath: (NSIndex path *) index path
{
return 150;
}
-(NSString *) table view : (UITable view *) table view
titleforHeaderInSection : (NSInteger) Section
{
return nil;
}
-(UITable view cell *) tableview : (UITable view *) table view
CellForRowAtIndexpath: (NSIndexpath *) indexpath
{
Static NSString * cellIdentifier = @ “Custom cell;
UI Tableviewcell * cell = [table view
DesuetudeReusablecellwithIdentifier : cellIdentifier
If( cell = = nil)
{
Cell = [[ UITableviewCell alloc] initWithStyle:
UITableviewCellStyleSubtitle reuseIdentifier:
CellIdentifier] autorelease];
}
else
{
For( UIview * view in cell. Subviews)
{
If ([ view is kindOf class: [ UILabel class]) //
[ view is kindOf class : [UIButton class]] //
[ view is kindofClass: [UIImageview class]])
{
[ view removeFromSuperview];
}
}
}
UIImageview * imgview = [[ UIImageview alloc]
InitwithFrame : CGRectMake (120,50,100,80)];
[ imgview setImage : [ UIImage imageNamed :@ “2. Jpg”];
[ imgview setTag : indexpath . row];
[ cell addsub view : img view];
[ img view release ];
UIButton * btn = [[ UIButton alloc] initWithFrame:
CGRectMake( 250,100,60,400)];
[ btn addTarget: self action : @ Selector ( button Clicked)
ForControlEvents: UIControlEventTouchupInside];
[ btn set tag : indexPath row];
[ btn set BackgroundImage : [UI image
ImageNamed: @ “ 1. Png”] for state: UI Control state Normal];
[ btn SetTitle: @ “Btn” for State : UIcontrol stateNormal];
[cell addsub view : btn];
[ btn release];
return cell;
}
-(void) buttonClicked : (id) sender
{
UIButton * SelectedBtn = (UIButton *) Sender;
int tag = selectedBtn.tag;
NSLog( @ “ the Selected button index is %d”, tag);
}
# Program Mark Table View Delegate Method:-
-(void) table view: (UITableview *) tableview
Did selectRowAtIndexPath: (NSIndex path *)
IndexPath
{
NSLog ( @ “did selectRowAtIndexpath is called and index is %d”, index .row);
}
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