7.1 導航控制器

7.2 創建第一級控制器

7.3 第一個二級控制器

7.4 第一個三級控制器

7.5 第二個二級表控制器

7.6 第三個二級表控制器

7.7 第四個二級表控制器

7.8 第五個二級表視圖控制器

7.8 第六個二級表視圖控制器

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7.1 導航控制器

關于導航控制器和表視圖

導航控制器和表視圖密不可分。嚴格的說，要完成導航控制器的功能并不需要表視圖。然而，在實際的應用程序中使用導航控制器時，幾乎總是要實現至少一個表，并且通常多個表，因為導航控制器的強大之處在于它能夠處理復雜的分層數據，在iPhone的小屏幕上，連續的使用表示分層數據最理想的方式。

7.2 創建第一級控制器

一級控制器RootViewController還是一個UITableViewController,它并不是我們說的導航控制器，我們在委托Delegate中定義了導航控制器UINavigationController，事實上UINavigationController才真正意義的根控制器。

RootViewController.h

#import <UIKit/UIKit.h>@interface RootViewController : UITableViewController {NSArray *controllers; }@property (nonatomic, retain) NSArray *controllers;@end

RootViewController.m

@implementation RootViewController@synthesize controllers;- (void)viewDidLoad {self.title = @"First Level";NSMutableArray *array = [[NSMutableArray alloc] init];//增加控制器// self.controllers = array;[array release];[super viewDidLoad]; }- (void)didReceiveMemoryWarning {[super didReceiveMemoryWarning]; }- (void)viewDidUnload { }- (void)dealloc {[super dealloc]; }

實現TableView數據源方法

#pragma mark Table view data source// Customize the number of sections in the table view. - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {return 1; }// Customize the number of rows in the table view. - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {return [controllers count]; }// Customize the appearance of table view cells. - (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] autorelease];}NSInteger row = [indexPath row];SecondLevelViewController *controller = [controllers objectAtIndex:row];cell.textLabel.text = controller.title;cell.imageView.image = controller.rowImage;cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;return cell; }

cell.accessoryType屬性設定表視圖單元格擴展圖標類型。單元格擴展圖標類型：

UITableViewCellAccessoryNone，沒有擴展圖標；

UITableViewCellAccessoryDisclosureIndicator，擴展指示器，觸摸該圖標將切換到下一級表視圖，圖標為

UITableViewCellAccessoryDetailDisclosureButton，細節展示按鈕，觸摸該行將顯示當前行的更多詳細信息視圖，圖標為

UITableViewCellAccessoryCheckmark，選中標志，當選中某一行時候標志該行，圖標為

實現TableView委托方法

#pragma mark - #pragma mark Table view delegate- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {NSInteger row = [indexPath row];SecondLevelViewController *nextController = [self.controllers objectAtIndex:row];[self.navigationController pushViewController:nextController animated:YES]; }

二級表視圖控制器

由于二級控制器也是表視圖控制器，而且我們需要在為每個頁面指定一個圖片，所以我們定義了一個父類SecondLevelViewController

SecondLevelViewController

@interface SecondLevelViewController : UITableViewController {UIImage *rowImage; } @property (nonatomic, retain) UIImage *rowImage;@end #import "SecondLevelViewController.h"@implementation SecondLevelViewController@synthesize rowImage;@end

7.3 第一個二級控制器

DisclosureButtonController.h

#import <Foundation/Foundation.h> #import "SecondLevelViewController.h" #import "DisclosureDetailController.h"@interface DisclosureButtonController : SecondLevelViewController {NSArray *listData;DisclosureDetailController *childController; } @property (nonatomic,retain) NSArray *listData; @property (nonatomic, retain) DisclosureDetailController *childController;@end

DisclosureButtonController.m

#import "DisclosureButtonController.h" #import "SecondLevelViewController.h"@implementation DisclosureButtonController@synthesize listData; @synthesize childController;- (void)viewDidLoad {NSArray *array = [[NSArray alloc] initWithObjects:@"Toy Story",@"A Bug's Life", @"Toy Story 2", @"Monsters, Inc.", @"Finding Nemo", @"The Incredibles", @"Cars", @"Ratatouille", @"WALL-E", @"Up", @"Toy Story 3",@"Cars 2", @"The Bear and the Bow", @"Newt", nil];self.listData = array;[array release];[super viewDidLoad]; }- (void)viewDidUnload {self.listData = nil;self.rowImage = nil; }- (void)dealloc {[listData release];[rowImage release];[super dealloc]; }

實現TableView數據源方法

#pragma mark - #pragma mark Table view data source// Customize the number of sections in the table view. - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {return 1; }// Customize the number of rows in the table view. - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {return [listData count]; } // Customize the appearance of table view cells. - (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] autorelease];}NSInteger row = [indexPath row];NSString *title = [listData objectAtIndex:row];cell.textLabel.text = title;//cell.imageView.image = controller.rowImage;cell.accessoryType = UITableViewCellAccessoryDetailDisclosureButton;return cell; }

實現TableView委托方法

#pragma mark - #pragma mark Table view delegate- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {if (childController == nil) {childController = [[DisclosureDetailController alloc] initWithNibName:@"DisclosureDetailController" bundle:nil];}//childController.title = @"DisclosureDetail Button Pressed";NSInteger row = [indexPath row];NSString *selectedMessage = [listData objectAtIndex:row];NSString *message = [[NSString alloc] initWithFormat:@"你選擇了 %@ 按鈕。", selectedMessage];childController.message = message;childController.title = selectedMessage;[message release];[self.navigationController pushViewController:childController animated:YES]; }

上面的委托方法，是用戶選中單元格后觸發的方法。

[self.navigationController pushViewController:childController animated:YES];

是將詳細視圖控制器放置到導航控制器棧中，并以動畫效果顯示詳細視圖。

RootViewController中 viewDidLoad方法

//增加細節擴展按鈕控制器DisclosureButtonController *disclosureButtonController = [[DisclosureButtonController alloc] initWithStyle:UITableViewStylePlain];disclosureButtonController.title = @"Disclosure Buttons";disclosureButtonController.rowImage = [UIImage imageNamed:@"disclosureButtonControllerIcon.png"];[array addObject:disclosureButtonController];[disclosureButtonController release];

7.4 第一個三級控制器

DisclosureDetailController.h

@interface DisclosureDetailController : UIViewController {UILabel *label;NSString *message; } @property (nonatomic, retain) IBOutlet UILabel *label; @property (nonatomic, retain) NSString *message;@end

message從上一個屏幕傳遞過來的消息 label顯示消息的控件。

m文件中的初始化方法

@implementation DisclosureDetailController@synthesize message; @synthesize label;// Implement viewDidLoad to do additional setup after loading the view, typically from a nib. - (void)viewWillAppear:(BOOL)animated {label.text = message;[super viewWillAppear:animated]; }

不要使用viewDidLoad 方法，而是使用viewWillAppear:animated:方法，該方法是在屏幕出現時候調用。

m文件中釋放方法

- (void)viewDidUnload {[super viewDidUnload];self.message = nil;self.label = nil; }- (void)dealloc {[message release];[label release];[super dealloc]; }

7.5 第二個二級表控制器

CheckListController.h

#import <UIKit/UIKit.h> #import "SecondLevelViewController.h"@interface CheckListController : SecondLevelViewController {NSArray *listData;NSIndexPath *lastIndexPath; }@property (nonatomic, retain) NSArray *listData; @property (nonatomic, retain) NSIndexPath *lastIndexPath;@end

CheckListController.m

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- (void)viewDidLoad {NSArray *array = [[NSArray alloc] initWithObjects:@"Who Hash",@"Bubba Gump Shrimp étouffée", @"Who Pudding", @"Scooby Snacks",@"Everlasting Gobstopper", @"Green Eggs and Ham", @"Soylent Green",@"Hard Tack", @"Lembas Bread", @"Roast Beast", @"Blancmange", nil];self.listData = array;[array release]; }- (void)didReceiveMemoryWarning {[super didReceiveMemoryWarning]; }- (void)viewDidUnload {self.listData = nil;self.lastIndexPath = nil; }- (void)dealloc {[listData release];[lastIndexPath release];[super dealloc]; }

實現TableView數據源方法

#pragma mark Table view methods- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {return 1; }// Customize the number of rows in the table view. - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {return [listData count]; }

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// Customize the appearance of table view cells. - (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] autorelease];}NSInteger row = [indexPath row]; // NSInteger oldRow = [lastIndexPath row]; cell.textLabel.text = [listData objectAtIndex:row]; // cell.accessoryType = (row == oldRow && lastIndexPath != nil) ? // UITableViewCellAccessoryCheckmark : UITableViewCellAccessoryNone;return cell; }

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實現TableView委托方法

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {int newRow = [indexPath row];int oldRow = (lastIndexPath != nil) ? [lastIndexPath row] : -1;if (newRow != oldRow) {UITableViewCell *newCell = [tableView cellForRowAtIndexPath:indexPath];newCell.accessoryType = UITableViewCellAccessoryCheckmark;UITableViewCell *oldCell = [tableView cellForRowAtIndexPath:lastIndexPath];oldCell.accessoryType = UITableViewCellAccessoryNone;lastIndexPath = indexPath;}}

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int oldRow = (lastIndexPath != nil) ? [lastIndexPath row] : -1;

獲得上次選擇的單元格行，如果lastIndexPath為nil這設置為-1

newCell.accessoryType = UITableViewCellAccessoryCheckmark;

設置新單元格為UITableViewCellAccessoryCheckmark oldCell.accessoryType = UITableViewCellAccessoryNone;

設置舊單元格為UITableViewCellAccessoryNone

RootViewController中 viewDidLoad方法

//增加check控制器CheckListController *checkListController = [[CheckListController alloc] initWithStyle:UITableViewStylePlain];checkListController.title = @"Check One";checkListController.rowImage = [UIImage imageNamed:@"checkmarkControllerIcon.png"];[array addObject:checkListController];[checkListController release];

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7.6 第三個二級表控制器

RowControlsController.h

#import <UIKit/UIKit.h> #import "SecondLevelViewController.h"@interface RowControlsController : SecondLevelViewController {NSArray *listData; }@property (nonatomic, retain) NSArray *listData; -(IBAction)buttonTapped:(id)sender;@end

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RowControlsController.m

@implementation RowControlsController@synthesize listData;-(IBAction)buttonTapped:(id)sender {UIButton *senderButton = (UIButton *)sender;UITableViewCell *buttonCell = (UITableViewCell *)[senderButton superview];NSInteger buttonRow = [[self.tableView indexPathForCell:buttonCell] row];NSString *rowTitle = [listData objectAtIndex:buttonRow];UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"點擊Button" message:[NSString stringWithFormat:@"你點擊的Button是 %@",rowTitle]delegate:self cancelButtonTitle:@"Ok" otherButtonTitles:nil];[alert show];[alert release]; }- (void)viewDidLoad {NSArray *array = [[NSArray alloc] initWithObjects:@"R2-D2",@"C3PO", @"Tik-Tok", @"Robby", @"Rosie", @"Uniblab",@"Bender", @"Marvin", @"Lt. Commander Data", @"Evil Brother Lore", @"Optimus Prime", @"Tobor", @"HAL", @"Orgasmatron", nil];self.listData = array;[array release]; }- (void)viewDidUnload {self.listData = nil; }- (void)dealloc {[listData release];[super dealloc]; }

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實現TableView數據源方法

#pragma mark Table view methods- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {return 1; }// Customize the number of rows in the table view. - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {return [listData count]; }

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// Customize the appearance of table view cells. - (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] autorelease];UIImage *buttonUpImage = [UIImage imageNamed:@"button_up.png"];UIImage *buttonDownImage = [UIImage imageNamed:@"button_down.png"];UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];button.frame = CGRectMake(0.0f, 0.0f, buttonUpImage.size.width, buttonUpImage.size.height);[button setBackgroundImage:buttonUpImage forState:UIControlStateNormal];[button setBackgroundImage:buttonDownImage forState:UIControlStateHighlighted];[button setTitle:@"Tap" forState:UIControlStateNormal];[button addTarget:self action:@selector(buttonTapped:) forControlEvents:UIControlEventTouchUpInside];cell.accessoryView = button;}NSInteger row = [indexPath row];NSString *rowTitle = [listData objectAtIndex:row];cell.textLabel.text = rowTitle;return cell; }

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由于我們沒有nib文件，所以按鈕要通過代碼自己寫按鈕， 如下：

UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];

指定按鈕的邊框大小：

button.frame = CGRectMake(0.0f, 0.0f, buttonUpImage.size.width, buttonUpImage.size.height);

設定按鈕正常狀態時候背景圖片

[button setBackgroundImage:buttonUpImage forState:UIControlStateNormal];

設定按鈕高亮狀態時候背景圖片

[button setBackgroundImage:buttonDownImage forState:UIControlStateHighlighted];

button setTitle:@"Tap" forState:UIControlStateNormal 設置按鈕正常狀態時候的title內容。

[button addTarget:self action:@selector(buttonTapped:)?? forControlEvents:UIControlEventTouchUpInside];

由于沒有nib文件按鈕事件不能通過IB設計工具添加，要通過代碼實現與按鈕事件的處理。

cell.accessoryView = button;

把按鈕對象賦給單元格的accessoryView（擴展視圖）。

實現TableView委托方法

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {NSInteger buttonRow = [indexPath row];NSString *rowTitle = [listData objectAtIndex:buttonRow];UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"點擊Row" message:[NSString stringWithFormat:@"你點擊的Row是 %@",rowTitle]delegate:self cancelButtonTitle:@"Ok" otherButtonTitles:nil];[alert show];[alert release];}

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RowControlsController.m

-(IBAction)buttonTapped:(id)sender {UIButton *senderButton = (UIButton *)sender;UITableViewCell *buttonCell = (UITableViewCell *)[senderButton superview];NSInteger buttonRow = [[self.tableView indexPathForCell:buttonCell] row];NSString *rowTitle = [listData objectAtIndex:buttonRow];UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"點擊Button" message:[NSString stringWithFormat:@"你點擊的Button是 %@",rowTitle]delegate:self cancelButtonTitle:@"Ok" otherButtonTitles:nil];[alert show];[alert release]; }- (void)viewDidLoad {NSArray *array = [[NSArray alloc] initWithObjects:@"R2-D2",@"C3PO", @"Tik-Tok", @"Robby", @"Rosie", @"Uniblab",@"Bender", @"Marvin", @"Lt. Commander Data", @"Evil Brother Lore", @"Optimus Prime", @"Tobor", @"HAL", @"Orgasmatron", nil];self.listData = array;[array release]; }

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buttonTapped:方法，是點擊單元格中的按鈕觸發事件。

UITableViewCell *buttonCell = (UITableViewCell *)[senderButton superview];

其中superview獲得父控件，即表視圖單元格。

NSInteger buttonRow = [[self.tableView indexPathForCell:buttonCell] row];

其中獲得選擇的單元格中的按鈕所在的單元格行數。

RootViewController中 viewDidLoad方法

//增加Row控制器RowControlsController *rowControlsController = [[RowControlsController alloc] initWithStyle:UITableViewStylePlain];rowControlsController.title = @"Row Controls";rowControlsController.rowImage = [UIImage imageNamed:@"rowControlsIcon.png"];[array addObject:rowControlsController];[rowControlsController release];

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7.7 第四個二級表控制器

MoveMeController.h

#import <UIKit/UIKit.h> #import "SecondLevelViewController.h"@interface MoveMeController : SecondLevelViewController {NSMutableArray *listData; } @property (nonatomic, retain) NSMutableArray *listData; -(IBAction)toggleMove;@end

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MoveMeController.m

@implementation MoveMeController@synthesize listData;-(IBAction)toggleMove {[self.tableView setEditing:!self.tableView.editing animated:YES];if (self.tableView.editing) {[self.navigationItem.rightBarButtonItem setTitle:@"Done"];} else {[self.navigationItem.rightBarButtonItem setTitle:@"Move"];}} #pragma mark - #pragma mark Memory management- (void)didReceiveMemoryWarning {[super didReceiveMemoryWarning]; }- (void)viewDidUnload {self.listData = nil; }- (void)dealloc {[listData release];[super dealloc]; }

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toggleMove方法，是點擊導航控制器右邊按鈕時候觸發事件，如果表單元格處于編輯狀態時候，設為不可編輯，反之可以編輯單元格。

MoveMeController.m

#pragma mark - #pragma mark View lifecycle- (void)viewDidLoad {if (listData == nil) {NSMutableArray *array = [[NSMutableArray alloc] initWithObjects:@"Eeny", @"Meeny", @"Miney", @"Moe", @"Catch", @"A", @"Tiger", @"By", @"The", @"Toe", nil];self.listData = array;[array release]; }UIBarButtonItem *moveButton = [[UIBarButtonItem alloc] initWithTitle:@"Move" style:UIBarButtonItemStyleBordered target:self action:@selector(toggleMove)];self.navigationItem.rightBarButtonItem = moveButton;[moveButton release];[super viewDidLoad]; }

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實現TableView數據源方法

#pragma mark - #pragma mark Table view data source- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {// Return the number of sections.return 1; }- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {// Return the number of rows in the section.return [listData count]; }

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// Customize the appearance of table view cells. - (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] autorelease];//cell.showsReorderControl = YES; }NSInteger row = [indexPath row];cell.textLabel.text = [listData objectAtIndex:row];return cell; }

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// Override to support rearranging the table view. - (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath {NSInteger fromRow = [fromIndexPath row];NSInteger toRow = [toIndexPath row];id object = [listData objectAtIndex:fromRow];//[[listData objectAtIndex:fromRow] retain]; [listData removeObjectAtIndex:fromRow];[listData insertObject:object atIndex:toRow];//[object release]; }

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// Override to support conditional rearranging of the table view. - (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath {// Return NO if you do not want the item to be re-orderable.return YES; }

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控制單元格行是否可以移動，本例中我們是可以移動所有行。

實現TableView委托方法

#pragma mark - #pragma mark Table view delegate- (UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath {return UITableViewCellEditingStyleNone; }

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我們希望能夠對行重新排序，不過不希望用戶能夠刪除或插入行，因此，我們實現了上面的委托方法，通過這個方法，表視圖可以詢問指定的行是否可以被刪除，或是否可以將新行插入到指定的位置。通過為每一行返回

UITableViewCellEditingStyleNone，表示我們不支持插入或刪除任何行。

RootViewController中 viewDidLoad方法

//增加Move控制器MoveMeController *moveMeController = [[MoveMeController alloc] initWithStyle:UITableViewStylePlain];moveMeController.title = @"Move Me";moveMeController.rowImage = [UIImage imageNamed:@"moveMeIcon.png"];[array addObject:moveMeController];[moveMeController release];

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7.8 第五個二級表視圖控制器

DeleteMeController.h

#import <UIKit/UIKit.h> #import "SecondLevelViewController.h"@interface DeleteMeController : SecondLevelViewController {NSMutableArray *listData; }@property (nonatomic, retain) NSMutableArray *listData; -(IBAction)toggleMove;@end

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DeleteMeController.m

@implementation DeleteMeController@synthesize listData;-(IBAction)toggleMove {[self.tableView setEditing:!self.tableView.editing animated:YES];if (self.tableView.editing) {[self.navigationItem.rightBarButtonItem setTitle:@"Done"];} else {[self.navigationItem.rightBarButtonItem setTitle:@"Move"];}}- (void)dealloc {[listData release];[super dealloc]; }

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toggleMove方法，是點擊導航控制器右邊按鈕時候觸發事件，如果表單元格處于編輯狀態時候，設為不可編輯，反之可以編輯單元格。

DeleteMeController.m

- (void)viewDidLoad {if (listData == nil) {NSString *path = [[NSBundle mainBundle] pathForResource:@"computers" ofType:@"plist"];NSMutableArray *array = [[NSMutableArray alloc] initWithContentsOfFile:path];self.listData = array;[array release];}UIBarButtonItem *editButton = [[UIBarButtonItem alloc] initWithTitle:@"Delete" style:UIBarButtonItemStyleBordered target:self action:@selector(toggleMove)];self.navigationItem.rightBarButtonItem = editButton;[editButton release]; }

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實現TableView數據源方法

#pragma mark - #pragma mark Table view data source- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {// Return the number of sections.return 1; }- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {// Return the number of rows in the section.return [listData count]; }

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// Customize the appearance of table view cells. - (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] autorelease];}NSInteger row = [indexPath row];cell.textLabel.text = [listData objectAtIndex:row];return cell; }

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// Override to support editing the table view. - (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {if (editingStyle == UITableViewCellEditingStyleDelete) {NSInteger row = [indexPath row];[self.listData removeObjectAtIndex:row];// Delete the row from the data source [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:YES];}}

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-(void)tableView:(UITableView *)tableView commitEditingStyle:

(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath?

該委托方法是實現刪除和插入功能。

RootViewController中 viewDidLoad方法

//增加Delete控制器DeleteMeController *deleteMeController = [[DeleteMeController alloc] initWithStyle:UITableViewStylePlain];deleteMeController.title = @"Delete Me";deleteMeController.rowImage = [UIImage imageNamed:@"deleteMeIcon.png"];[array addObject:deleteMeController];[deleteMeController release];

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7.9 第六個二級表視圖控制器

TeamsViewController.h

#import <UIKit/UIKit.h> #import "SecondLevelViewController.h"@interface TeamsViewController : SecondLevelViewController {NSArray *listData; }@property (nonatomic, retain) NSArray *listData;@end

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TeamsViewController.m

#import "TeamsViewController.h" #import "TeamsViewController.h" #import "TeamsDetailController.h"@implementation TeamsViewController @synthesize listData; - (void)viewDidLoad {NSString *path = [[NSBundle mainBundle] pathForResource:@"teamdictionary" ofType:@"plist"];NSDictionary *dict = [[NSDictionary alloc] initWithContentsOfFile:path];self.listData = [dict allKeys];[dict release]; } - (void)didReceiveMemoryWarning {[super didReceiveMemoryWarning]; } - (void)viewDidUnload {self.listData = nil; } - (void)dealloc {[listData release];[super dealloc]; }

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實現TableView數據源方法

#pragma mark Table view methods- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {return 1; }// Customize the number of rows in the table view. - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {return [listData count]; }

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實現TableView數據源方法

// Customize the appearance of table view cells. - (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] autorelease];}NSInteger row = [indexPath row];NSString *title = [listData objectAtIndex:row];cell.textLabel.text = title;return cell; } - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {NSInteger row = [indexPath row];NSString *groupName = [listData objectAtIndex:row];NSString *path = [[NSBundle mainBundle] pathForResource:@"teamdictionary" ofType:@"plist"];NSDictionary *dict = [[NSDictionary alloc] initWithContentsOfFile:path];TeamsDetailController *detailController = [[TeamsDetailController alloc]initWithStyle:UITableViewStyleGrouped];detailController.listData = [dict objectForKey:groupName]; [dict release];//[array release];// Navigation logic may go here. Create and push another view controller. [self.navigationController pushViewController:detailController animated:YES];[detailController release]; }

可編輯表視圖控制器

TeamsDetailController.h

#import <UIKit/UIKit.h> #define TEAM1 1 #define TEAM2 2 #define TEAM3 3 #define TEAM4 4 #define LABLE_TAG 45678@interface TeamsDetailController : UITableViewController <UITextFieldDelegate> {NSArray *listData;NSMutableArray *teamsData;NSArray *fieldLables; }@property (nonatomic, retain) NSArray *listData; @property (nonatomic, retain) NSArray *fieldLables; @property (nonatomic, retain) NSMutableArray *teamsData;-(IBAction)cancel:(id)sender; -(IBAction)save:(id)sender; -(IBAction)textFieldDone:(id)sender;@end

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TeamsDetailController.m

#import "TeamsDetailController.h"@implementation TeamsDetailController@synthesize listData; @synthesize fieldLables; @synthesize teamsData;-(IBAction)cancel:(id)sender {[self.navigationController popViewControllerAnimated:YES]; }-(IBAction)save:(id)sender {for (UIView *oneView in self.tableView.subviews) {if ([oneView isMemberOfClass:[UITableViewCell class]]) {UITableViewCell *cell = (UITableViewCell *)oneView;for (UIView *twoView in cell.contentView.subviews) {if ([twoView isMemberOfClass:[UITextField class]]) {UITextField *textField = (UITextField *)twoView;NSLog(@"行 %i -- value %@", textField.tag ,textField.text);}}}}[self.navigationController popViewControllerAnimated:YES];}

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-(IBAction)textFieldDone:(id)sender {[sender resignFirstResponder]; }- (void)viewDidUnload {self.listData = nil;self.teamsData = nil;self.fieldLables = nil;self.listData = nil; }- (void)dealloc {[listData release];[teamsData release];[fieldLables release];[super dealloc]; }

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- (void)viewDidLoad {teamsData = [[NSMutableArray alloc] init];for (id name in listData) {[teamsData addObject:name];}NSArray *array = [[NSArray alloc] initWithObjects:@"第一隊：",@"第二隊：",@"第三隊：",@"第四隊：", nil];self.fieldLables = array;[array release];UIBarButtonItem *cancelButton = [[UIBarButtonItem alloc] initWithTitle:@"Cancel" style:UIBarButtonItemStyleBordered target:self action:@selector(cancel:)];self.navigationItem.leftBarButtonItem = cancelButton;[cancelButton release];UIBarButtonItem *saveButton = [[UIBarButtonItem alloc] initWithTitle:@"Save" style:UIBarButtonItemStyleBordered target:self action:@selector(save:)];self.navigationItem.rightBarButtonItem = saveButton;[saveButton release]; }- (void)didReceiveMemoryWarning {// Releases the view if it doesn't have a superview. [super didReceiveMemoryWarning];// Release any cached data, images, etc that aren't in use. }

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實現TableView數據源方法

#pragma mark Table view methods- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {return 1; }// Customize the number of rows in the table view. - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {return [teamsData count]; }

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// Customize the appearance of table view cells. - (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] autorelease];UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(10, 10, 75, 25)];label.textAlignment = UITextAlignmentRight;label.tag = LABLE_TAG;label.font = [UIFont boldSystemFontOfSize:14];[cell.contentView addSubview:label];[label release];UITextField *textField = [[UITextField alloc] initWithFrame:CGRectMake(90, 12, 200, 25)];textField.clearsOnBeginEditing = NO;[textField setDelegate:self];textField.returnKeyType = UIReturnKeyDone;[textField addTarget:self action:@selector(textFieldDone:) forControlEvents:UIControlEventEditingDidEndOnExit];[cell.contentView addSubview:textField];[textField release];}NSInteger row = [indexPath row];UILabel *label = (UILabel *)[cell viewWithTag:LABLE_TAG];UITextField *textField = nil;for (UIView *oneView in cell.contentView.subviews) {if ([oneView isMemberOfClass:[UITextField class]]) {textField = (UITextField *)oneView;}}label.text = [fieldLables objectAtIndex:row];textField.text = [listData objectAtIndex:row];textField.tag = row;return cell; }

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實現TableView委托方法

#pragma mark 文本字段控件的委托方法 - (void)textFieldDidEndEditing:(UITextField *)textField {NSLog(@"修改 行 %i -- value %@", textField.tag ,textField.text); }

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RootViewController中 viewDidLoad方法

//增加可編輯詳細窗格控制器TeamsViewController *teamsViewController = [[TeamsViewController alloc] initWithStyle:UITableViewStylePlain];teamsViewController.title = @"Detail Edit";teamsViewController.rowImage = [UIImage imageNamed:@"detailEditIcon.png"];[array addObject:teamsViewController];[teamsViewController release];

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注：
1 本教程是基于關東升老師的教程
2 基于黑蘋果10.6.8和xcode4.2
3 本人初學，有什么不對的望指教
4 教程會隨著本人學習，持續更新
5 教程是本人從word筆記中拷貝出來了，所以格式請見諒

轉載于:https://www.cnblogs.com/syxchina/archive/2012/09/12/2681101.html

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