iOS UI element delegates methods

Delegate methods : 

UITableView:

DataSource -

Configuring a Table View

– tableView:cellForRowAtIndexPath:  required method

– numberOfSectionsInTableView:

– tableView:numberOfRowsInSection:  required method

– sectionIndexTitlesForTableView:

– tableView:sectionForSectionIndexTitle:atIndex:

– tableView:titleForHeaderInSection:

– tableView:titleForFooterInSection:

Inserting or Deleting Table Rows

– tableView:commitEditingStyle:forRowAtIndexPath:

– tableView:canEditRowAtIndexPath:

Reordering Table Rows

– tableView:canMoveRowAtIndexPath:

– tableView:moveRowAtIndexPath:toIndexPath:

  Delegate -

Configuring Rows for the Table View

– tableView:heightForRowAtIndexPath:

– tableView:indentationLevelForRowAtIndexPath:

– tableView:willDisplayCell:forRowAtIndexPath:

Managing Accessory Views

– tableView:accessoryButtonTappedForRowWithIndexPath:

Managing Selections

– tableView:willSelectRowAtIndexPath:

– tableView:didSelectRowAtIndexPath:

– tableView:willDeselectRowAtIndexPath:

– tableView:didDeselectRowAtIndexPath:

Modifying the Header and Footer of Sections

– tableView:viewForHeaderInSection:

– tableView:viewForFooterInSection:

– tableView:heightForHeaderInSection:

– tableView:heightForFooterInSection:

Editing Table Rows

– tableView:willBeginEditingRowAtIndexPath:

– tableView:didEndEditingRowAtIndexPath:

– tableView:editingStyleForRowAtIndexPath:

– tableView:titleForDeleteConfirmationButtonForRowAtIndexPath:

– tableView:shouldIndentWhileEditingRowAtIndexPath:

Reordering Table Rows

– tableView:targetIndexPathForMoveFromRowAtIndexPath:toProposedIndexPath:

Copying and Pasting Row Content

– tableView:shouldShowMenuForRowAtIndexPath:

– tableView:canPerformAction:forRowAtIndexPath:withSender:

– tableView:performAction:forRowAtIndexPath:withSender:

 UIPickerView-

 DataSource -

Providing Counts for the Picker View

– numberOfComponentsInPickerView:

– pickerView:numberOfRowsInComponent:

  Delegate -

Setting the Dimensions of the Picker View

– pickerView:rowHeightForComponent:

– pickerView:widthForComponent:

Setting the Content of Component Rows

The methods in this group are marked @optional. However, to use a picker view, you must implement either thepickerView:titleForRow:forComponent: or thepickerView:viewForRow:forComponent:reusingView: method to provide the content of component rows.

– pickerView:titleForRow:forComponent:

– pickerView:viewForRow:forComponent:reusingView:

Responding to Row Selection

– pickerView:didSelectRow:inComponent:

UITextFeild-

Delegate -

Managing Editing

– textFieldShouldBeginEditing:

– textFieldDidBeginEditing:

– textFieldShouldEndEditing:

– textFieldDidEndEditing:

Editing the Text Field’s Text

– textField:shouldChangeCharactersInRange:replacementString:

– textFieldShouldClear:

– textFieldShouldReturn:

 UItextView-

 Delegate - Responding to Editing Notifications

– textViewShouldBeginEditing:

– textViewDidBeginEditing:

– textViewShouldEndEditing:

– textViewDidEndEditing:

Responding to Text Changes

– textView:shouldChangeTextInRange:replacementText:

– textViewDidChange:

Responding to Selection Changes

– textViewDidChangeSelection:

 MKMapView-

Delegate -

Responding to Map Position Changes

– mapView:regionWillChangeAnimated:

– mapView:regionDidChangeAnimated:

Loading the Map Data

– mapViewWillStartLoadingMap:

– mapViewDidFinishLoadingMap:

– mapViewDidFailLoadingMap:withError:

Tracking the User Location

– mapViewWillStartLocatingUser:

– mapViewDidStopLocatingUser:

– mapView:didUpdateUserLocation:

– mapView:didFailToLocateUserWithError:

– mapView:didChangeUserTrackingMode:animated:  required method

Managing Annotation Views

– mapView:viewForAnnotation:

– mapView:didAddAnnotationViews:

– mapView:annotationView:calloutAccessoryControlTapped:

Dragging an Annotation View

– mapView:annotationView:didChangeDragState:fromOldState:

Selecting Annotation Views

– mapView:didSelectAnnotationView:

– mapView:didDeselectAnnotationView:

Managing Overlay Views

– mapView:viewForOverlay:

– mapView:didAddOverlayViews:

NSURLConnection-

Delegate -

Connection Authentication

– connection:willSendRequestForAuthenticationChallenge:

– connection:canAuthenticateAgainstProtectionSpace:

– connection:didCancelAuthenticationChallenge:

– connection:didReceiveAuthenticationChallenge:

– connectionShouldUseCredentialStorage:

Connection Completion

– connection:didFailWithError:

NSURLConnectionDownloadDelegate

   – connection:didWriteData:totalBytesWritten:expectedTotalBytes:

– connectionDidResumeDownloading:totalBytesWritten:expectedTotalBytes:

– connectionDidFinishDownloading:destinationURL:

 NSURLConnection

Preflighting a Request

+ canHandleRequest:

Loading Data Synchronously

+ sendSynchronousRequest:returningResponse:error:

Loading Data Asynchronously

+ connectionWithRequest:delegate:

– initWithRequest:delegate:

– initWithRequest:delegate:startImmediately:

+ sendAsynchronousRequest:queue:completionHandler:

– start

Stopping a Connection

– cancel

Scheduling Delegate Messages

– scheduleInRunLoop:forMode:

– setDelegateQueue:

– unscheduleFromRunLoop:forMode:

 NSXMLParser-

Handling XML

– parserDidStartDocument:

– parserDidEndDocument:

– parser:didStartElement:namespaceURI:qualifiedName:attributes:

– parser:didEndElement:namespaceURI:qualifiedName:

– parser:didStartMappingPrefix:toURI:

– parser:didEndMappingPrefix:

– parser:resolveExternalEntityName:systemID:

– parser:parseErrorOccurred:

– parser:validationErrorOccurred:

– parser:foundCharacters:

– parser:foundIgnorableWhitespace:

– parser:foundProcessingInstructionWithTarget:data:

– parser:foundComment:

– parser:foundCDATA:

Handling the DTD

– parser:foundAttributeDeclarationWithName:forElement:type:defaultValue:

– parser:foundElementDeclarationWithName:model:

– parser:foundExternalEntityDeclarationWithName:publicID:systemID:

– parser:foundInternalEntityDeclarationWithName:value:

– parser:foundUnparsedEntityDeclarationWithName:publicID:systemID:notationName:

– parser:foundNotationDeclarationWithName:publicID:systemID:

7.NSURLConnection

Connection Authentication

• – connection:willSendRequestForAuthenticationChallenge:
• – connection:canAuthenticateAgainstProtectionSpace:
• – connection:didCancelAuthenticationChallenge:
• – connection:didReceiveAuthenticationChallenge:
• – connectionShouldUseCredentialStorage:

Connection Completion

• – connection:didFailWithError:

MethodGroup

• – connection:needNewBodyStream
• – connection:didSendBodyData:totalBytesWritten:totalBytesExpectedToWrite:  required method
• – connection:didReceiveData:  required method 
• – connection:didReceiveResponse:  required method 
• – connection:willCacheResponse:  required method
• – connection:willSendRequest:redirectResponse:  required method 
• – connectionDidFinishLoading:  required method