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[IOS]非常不错的导航控制器的应用Demo-创新互联
我们在iPhone开发的过程中，估计UINavgationController是最最常用的控件之一吧，截下来我就用一个demo来举例导航控制器的应用。包含了tableview中增删查改的功能。
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实现步骤：
1.创建一个Empty项目，命名为Navdemo。
2.创建一个根视图控制器，继承自UINavgationController，命名为FirstViewController。
![[IOS]非常不错的导航控制器的应用Demo](http://img.blog.csdn.net/20130823143129625?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvZGluZ3hpYW93ZWkyMDEz/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center)
FirstViewController.h：
#import@interface FirstViewController : UITableViewController @property(nonatomic,retain) NSMutableArray *array; @end
FirstViewController.m:
#import "FirstViewController.h" #import "DXWDiscosureButtonViewController.h" #import "DXWCheckViewController.h" @interface FirstViewController () @end @implementation FirstViewController static NSString *CellIdentifier = @"Cell"; - (id)initWithStyle:(UITableViewStyle)style { self = [super initWithStyle:style]; if (self) { self.array = @[[[DXWDiscosureButtonViewController alloc] initWithStyle:UITableViewStylePlain],[[DXWCheckViewController alloc] initWithStyle:UITableViewStylePlain]]; self.title = @"First"; } return self; } - (void)viewDidLoad { [super viewDidLoad]; //注册 [self.tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:@"Cell"]; } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } #pragma mark - Table view data source - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { #warning Potentially incomplete method implementation. // Return the number of sections. return 1; } - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { #warning Incomplete method implementation. // Return the number of rows in the section. return [self.array count]; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { //[tableView registerClass:[SecondViewController class] forCellReuseIdentifier:@"aa"]; //这个多一个最后的一个参数，必须要有上面一行注册过的才能这样用，不然的话就去掉最后一个参数 //UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath]; //UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath]; //没有注册需要创建 // if (cell == nil) { // cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier]; // } int row = [indexPath row]; //当有多个view没有继承SecondVIewController的时候,可以这样写 //[((UITableViewController *)self.array[row] valueForKey:@"Title")]; cell.textLabel.text = ((DXWDiscosureButtonViewController *)self.array[row]).title; cell.imageView.image = ((DXWDiscosureButtonViewController *)self.array[row]).image; //有右边的>符号 cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator; return cell; } #pragma mark - Table view delegate - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { // DXWDiscosureButtonViewController *detailViewController = [[DXWDiscosureButtonViewController alloc] init]; //[detailViewController release]; int row = [indexPath row]; [self.navigationController pushViewController:self.array[row] animated:YES]; } @end3.修改Delegate，设置根视图控制器
#import "DXWAppDelegate.h" #import "FirstViewController.h" //导入根视图控制器头文件 @implementation DXWAppDelegate - (void)dealloc { [_window release]; [super dealloc]; } - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease]; //创建首页 FirstViewController *first = [[FirstViewController alloc] initWithStyle:UITableViewStylePlain]; //创建一个导航栏，其中的首页是FirstViewController UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:first]; //将导航栏作为根视图控制器 self.window.rootViewController = nav; self.window.backgroundColor = [UIColor whiteColor]; [self.window makeKeyAndVisible]; return YES; }4.创建所有子视图的一个基类控制器，命名为SecondViewController
SecondViewController.h:
#import@interface SecondViewController : UITableViewController @property(nonatomic,retain)UIImage *image; @end
SecondViewController.m:
#import "SecondViewController.h" @interface SecondViewController () @end @implementation SecondViewController static NSString *cellRequestIdentifier = @"CellReuseIdentifier"; - (id)initWithStyle:(UITableViewStyle)style { self = [super initWithStyle:style]; if (self) { //self.title = @"SecondView"; } return self; } - (void)viewDidLoad { [super viewDidLoad]; //注册 [self.tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:cellRequestIdentifier]; } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } #pragma mark - Table view data source - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { #warning Potentially incomplete method implementation. // Return the number of sections. return 1; } - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { #warning Incomplete method implementation. // Return the number of rows in the section. return 1; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath]; return cell; } #pragma mark - Table view delegate - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { } @end5.创建二级子视图控制器，也就是上图所示的水果选项卡的内容控制器，命名为DXWDiscosureButtonController,继承自SecondViewController。
![[IOS]非常不错的导航控制器的应用Demo](http://img.blog.csdn.net/20130822093105937?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvZGluZ3hpYW93ZWkyMDEz/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center)
DXWDiscosureButtonController.h:
#import "SecondViewController.h" @interface DXWDiscosureButtonViewController : SecondViewController @property(nonatomic,retain) NSMutableArray *array; @end
DXWDiscosureButtonController.m:
#import "DXWDiscosureButtonViewController.h" #import "ThirdViewController.h" @interface DXWDiscosureButtonViewController () @end @implementation DXWDiscosureButtonViewController - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; if (self) { self.image = [UIImage imageNamed:@"disclosureButtonControllerIcon"]; self.title = @"水果"; } return self; } - (void)viewDidLoad { [super viewDidLoad]; self.array = [[NSMutableArray alloc] initWithObjects:@"apple",@"orange",@"pitch",@"lenmon",@"balana", nil]; } -(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { return [self.array count]; } -(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier]; } int row = [indexPath row]; cell.textLabel.text = [self.array objectAtIndex:row]; // cell.imageView.image = ((DXWDiscosureButtonViewController *)self.array[row]).image; //有右边的>符号 cell.accessoryType = UITableViewCellAccessoryDetailDisclosureButton; return cell; } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } -(void)dealloc { [self.array release]; [super dealloc]; } -(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { int row = [indexPath row]; UIAlertView *a = [[UIAlertView alloc] initWithTitle:@"Title" message:[NSString stringWithFormat:@"你选择了%@",self.array[row]] delegate:self cancelButtonTitle:@"OK" otherButtonTitles: nil]; [a show]; } //右边的>符号响应事件 -(void)tableView:(UITableView *)tableView accessoryButtonTappedForRowWithIndexPath:(NSIndexPath *)indexPath { int row = [indexPath row]; // UIAlertView *a = [[UIAlertView alloc] initWithTitle:@"Title" message:[NSString stringWithFormat:@"你选择了%@",self.array[row]] delegate:self cancelButtonTitle:@"OK" otherButtonTitles: nil]; // [a show]; ThirdViewController *thirdViewController = [[ThirdViewController alloc] initWithNibName:@"ThirdViewController" bundle:nil]; thirdViewController.str = self.array[row]; [self.navigationController pushViewController:thirdViewController animated:YES]; [thirdViewController release]; } @end6.创建第三级子视图控制器，也就是点击了某个水果选项卡的最右边的那个绿色按钮，会跳转到第三个视图，并且显示你所点击的水果名字，命名为ThirdViewController,继承自普通的ViewController,并且带有xib文件
![[IOS]非常不错的导航控制器的应用Demo](http://img.blog.csdn.net/20130822093646937?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvZGluZ3hpYW93ZWkyMDEz/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center)
ThirdViewController.h:
#import@interface ThirdViewController : UIViewController @property (retain, nonatomic) IBOutlet UILabel *lblshow; @property (nonatomic,copy) NSString *str; @end
ThirdViewController.m:
#import "ThirdViewController.h" @interface ThirdViewController () @end @implementation ThirdViewController - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; if (self) { self.title = @"ThirdViewController"; } return self; } - (void)viewDidLoad { [super viewDidLoad]; self.lblshow.text = self.str; } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } - (void)dealloc { [_lblshow release]; [super dealloc]; } @end7.创建根视图控制器的第二个选项卡的二级视图控制器，也就是选择的省市选项卡，命名为DXWCheckViewController，继承自tableViewController，不带xib文件
![[IOS]非常不错的导航控制器的应用Demo](http://img.blog.csdn.net/20130822094012968?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvZGluZ3hpYW93ZWkyMDEz/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center)
实现的效果是点击某行，这行显示mark
DXWCheckViewController.h:
#import "SecondViewController.h" @interface DXWCheckViewController : SecondViewController @property(nonatomic,retain) NSMutableArray *array; @property(nonatomic,assign) int selectedValue; @end
DXWCheckViewController.m:
#import "DXWCheckViewController.h" @interface DXWCheckViewController () @end @implementation DXWCheckViewController - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; if (self) { self.image = [UIImage imageNamed:@"checkmarkControllerIcon.png"]; self.title = @"省市"; } return self; } - (void)viewDidLoad { [super viewDidLoad]; self.selectedValue = -1; self.array = [[NSMutableArray alloc] initWithObjects:@"北京",@"上海",@"重庆",@"天津",@"江苏",@"浙江",@"河北",@"湖南",@"河南",@"湖北", nil]; } -(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { return [self.array count]; } -(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier]; } int row = [indexPath row]; cell.textLabel.text = [self.array objectAtIndex:row]; // cell.imageView.image = ((DXWDiscosureButtonViewController *)self.array[row]).image; //有右边的>符号 //cell.accessoryType = UITableViewCellAccessoryDetailDisclosureButton; if (self.selectedValue == row) { cell.accessoryType = UITableViewCellAccessoryCheckmark; } else { cell.accessoryType = UITableViewCellAccessoryNone; } return cell; } -(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { int row = [indexPath row]; //方法一：简洁明了的方法 //self.selectedValue = row; //[tableView reloadData]; //方法二：现货的以前的选中的cell,将其accessoryType设为None NSIndexPath *path = [NSIndexPath indexPathForRow:self.selectedValue inSection:0]; //将轩中行的accessoryType设为Checkmark UITableViewCell *oldCell = [tableView cellForRowAtIndexPath:path]; oldCell.accessoryType = UITableViewCellAccessoryNone; //将selectedValue设为当前轩中行 self.selectedValue = row; UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath]; cell.accessoryType = UITableViewCellAccessoryCheckmark; } -(void)dealloc { [self.array release]; [super dealloc]; } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; } @end8.添加继承自SecondViewController的班级选项卡的二级视图控制器，命名为ButtonViewController
![[IOS]非常不错的导航控制器的应用Demo](http://img.blog.csdn.net/20130822104540359?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvZGluZ3hpYW93ZWkyMDEz/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center)
ButtonViewController.h:
#import "SecondViewController.h" @interface ButtonViewController : SecondViewController @property(retain,nonatomic) NSArray *array; @end
ButtonViewController.m:
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