iOS Development-uinavigationcontroller Simple implementation

Navigation bar or navigation section is now basically standard in the app, similar to the parent-child level of taste in the inside, Uinavigationcontroller is responsible for simplifying this implementation function, is a more commonly used in iOS development of a container view controller, Many people use, it is relatively easy to achieve, you can first look at a picture to understand Navigationcontroller:

Interface Layout

It looked very tall on the top, below to see a personal, drag from the control library into a navigation Controller, and then create a new two viewcontroller:

A navigationcontroller can be used directly, it needs to be demonstrated, and a view is added later:

Demo Implementation

The data is initialized in the Viewcontroller of the home page:

-(void) viewdidload {    [super viewdidload];    Additional setup after loading the view, typically from a nib.    Data=[[nsarray Alloc] initwithobjects:@ "front", @ "back end", nil];    [Self.tableview setdelegate:self];    [Self.tableview setdatasource:self];}

Set number of groups, number of rows and content:

Number of}//groupings-(Nsinteger) Numberofsectionsintableview: (UITableView *) tableview{    return 1;} Number of rows grouped-(Nsinteger) TableView: (UITableView *) TableView numberofrowsinsection: (nsinteger) section{    return [data Count];} Return content in TableCell-(UITableViewCell *) TableView: (UITableView *) TableView Cellforrowatindexpath: (Nsindexpath *) indexpath{        UITableViewCell *cell=[[uitableviewcell alloc] Initwithstyle:uitableviewcellstyledefault Reuseidentifier:nil];        [Cell.textlabel Settext:data[indexpath.row]];    return cell;}

Set line height:

-(CGFloat) TableView: (UITableView *) TableView Heightforrowatindexpath: (Nsindexpath *) indexpath{    return 40;}

To set jump events:

-(void) TableView: (UITableView *) TableView Didselectrowatindexpath: (Nsindexpath *) indexpath{    Nsarray * Notificationdata=[[nsarray Alloc]init];    Nsinteger Index=[self.tableview Indexpathforselectedrow].row;    if (index==0) {        notificationdata=[[nsarray alloc]initwithobjects:@ "Android", @ "IOS", @ "JS", nil];    } else{        notificationdata=[[nsarray alloc]initwithobjects:@ "Java", @ "C #", @ "Python", nil];    }        Secondviewcontroller *controller = [Self.storyboard instantiateviewcontrollerwithidentifier:@ "SecondStoryID"];    Controller.data=notificationdata;    [Self.navigationcontroller Pushviewcontroller:controller animated:yes];    }

Details of the Viewcontroller and the first similar, has written a lot of tableview implementation, direct code, do not explain:

-(void) viewdidload {    [super viewdidload];    Do any additional setup after loading the view, typically from a nib.    } -(void) Notificationhandler: (nsnotification *) notification{    self.data=[notification object];} Number of groupings-(Nsinteger) Numberofsectionsintableview: (UITableView *) tableview{    return 1;} Number of rows grouped-(Nsinteger) TableView: (UITableView *) TableView numberofrowsinsection: (nsinteger) section{    return [ Self.data count];} Return content in TableCell-(UITableViewCell *) TableView: (UITableView *) TableView Cellforrowatindexpath: (Nsindexpath *) indexpath{    UITableViewCell *cell=[[uitableviewcell alloc] Initwithstyle:uitableviewcellstyledefault Reuseidentifier:nil];    [Cell.textlabel Settext:self.data[indexpath.row]];    NSLog (@ "%@", Self.data[indexpath.row]);    return cell;} -(CGFloat) TableView: (UITableView *) TableView Heightforrowatindexpath: (Nsindexpath *) indexpath{    return 40;}

But in the details of the header file to set up:

@interface Secondviewcontroller:uiviewcontroller@property (Nonatomic,strong) Nsarray *data; @end

The effect of the final implementation is as follows:

The green background navigation bar requires personal settings:

iOS Development-uinavigationcontroller Simple implementation