[IOS]包含增删改查移动的tableView展示+plist文件保存+程序意外退出保存Demo

时间:2023-12-11 16:20:38

做一个tableView,包含增删改移动功能,并且修改值的时候,在按home键的时候会自动保存。如果可以的话使者保存自定义的类数组保存到plist中。

实现步骤:

1.创建一个SingleViewApplication的项目,首页命名为FirstViewController

[IOS]包含增删改查移动的tableView展示+plist文件保存+程序意外退出保存Demo

FirstViewController.h:

#import <UIKit/UIKit.h>

@interface FirstViewController : UITableViewController
@property(nonatomic,retain) NSMutableArray *array;
@end

FirstViewController.m:

#import "FirstViewController.h"
#import "DXWViewController.h"
@interface FirstViewController () @end
NSString *CellIdentifier = @"Cell"; @implementation FirstViewController - (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self) {
self.array = @[
[[DXWViewController alloc] initWithStyle:UITableViewStylePlain]];
self.title = @"目录列表";
}
return self;
} - (void)viewDidLoad
{
[super viewDidLoad]; [self.tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:CellIdentifier];
} - (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
} #pragma mark - Table view data source - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
} - (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 forIndexPath:indexPath]; int row = [indexPath row];
cell.textLabel.text = ((DXWViewController *)self.array[row]).title;
//有右边的>符号
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
return cell;
} - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
int row = [indexPath row];
[self.navigationController pushViewController:self.array[row] animated:YES];
} @end

2.创建二级子视图控制器,不带xib文件,命名DXWViewController

[IOS]包含增删改查移动的tableView展示+plist文件保存+程序意外退出保存Demo[IOS]包含增删改查移动的tableView展示+plist文件保存+程序意外退出保存Demo

DXWViewController.h:

#import <UIKit/UIKit.h>

@protocol change <NSObject>

-(void)changeData:(int)row Name:(NSString *)name;

@end

@interface DXWViewController : UITableViewController<UIAlertViewDelegate>
@property(nonatomic,retain)NSMutableArray *array;
@property(retain,nonatomic)NSIndexPath *indexPath;
@end

DXWViewController.m:

#import "DXWViewController.h"
#import "EditViewController.h"
BOOL RIGHTBUTTON;
@interface DXWViewController () @end @implementation DXWViewController //获取沙盒文件路径 -(NSString *)getPath { //用来获得Document地址 NSArray *arr = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);//注意:这里是NSDocument不是NSDocumentation,特别注意 NSLog(@"%@",arr); //在地址上增加文件 NSString *path = [arr[0] stringByAppendingPathComponent:@"abc.plist"]; NSLog(@"%@",path); return path; } -(BOOL)writeDataToFile:(NSString *)path DataSource:(NSMutableArray *)array
{
return [array writeToFile:path atomically:YES];
} -(NSMutableArray *)getDataFromFile:(NSString *)path
{
//判断是否有文件 if([[NSFileManager defaultManager] fileExistsAtPath:[self getPath]]) { NSMutableArray *arr = [NSArray arrayWithContentsOfFile:[self getPath]]; return arr; }
} - (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self)
{
self.title = @"子视图";
// NSArray *arr = @[@"返回上一级",@"小花",@"小李",@"小王",@"小丁",@"小张",@"小康",@"小刘",@"小墩",@"大墩"];
// self.array = [arr mutableCopy];
// if ([self writeDataToFile:[self getPath] DataSource:self.array]) {
// NSLog(@"success");
// }
//获取数据
self.array = [self getDataFromFile:[self getPath]];
}
return self;
} - (void)viewDidLoad
{
[super viewDidLoad];
//首先要添加右上角的一个edit按钮,按钮按下去可以设置可以编辑
UIBarButtonItem *button = [[UIBarButtonItem alloc] initWithTitle:@"添加" style:UIBarButtonItemStyleBordered target:self action:@selector(itemLeftButtonClick:)];
self.navigationItem.leftBarButtonItem = button; UIBarButtonItem *button1 = [[UIBarButtonItem alloc] initWithTitle:@"删除" style:UIBarButtonItemStyleBordered target:self action:@selector(itemRightButtonClick:)];
self.navigationItem.rightBarButtonItem = button1;
} - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
} - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [self.array count];
} - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *identifier = @"Identifier";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:identifier];
if (cell == nil)
{
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:identifier];
}
int row = [indexPath row];
cell.textLabel.text = self.array[row];
return cell;
} -(void)itemLeftButtonClick:(id)sender
{ //设置可以编辑
RIGHTBUTTON = false;
[self.tableView setEditing:!self.tableView.editing];//设置成和当前状态相反的状态
if (self.tableView.editing)
{
[self.navigationItem.leftBarButtonItem setTitle:@"完成"];
}
else
{
[self.navigationItem.leftBarButtonItem setTitle:@"添加"];
}
} -(void)itemRightButtonClick:(id)sender
{
RIGHTBUTTON = true;
//设置可以编辑
[self.tableView setEditing:!self.tableView.editing];//设置成和当前状态相反的状态
if (self.tableView.editing)
{
[self.navigationItem.rightBarButtonItem setTitle:@"完成"];
}
else
{
[self.navigationItem.rightBarButtonItem setTitle:@"删除"];
}
} //设置编译图标
-(UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath
{
//删除
if (RIGHTBUTTON)
{
return UITableViewCellEditingStyleDelete;
}
else
{
return UITableViewCellEditingStyleInsert;
//return UITableViewCellEditingStyleNone;
}
}
//设置是否可以移动
-(BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath
{
if (RIGHTBUTTON)
{
return NO;
}
else
{
if (indexPath != 0) {
return YES;
}
}
} -(BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
{
if ([indexPath row] == 0) {
return NO;
}
else
{
return YES;
}
} //实现UIAlertView代理协议
-(void)alertView:(UIAlertView *)alertView didDismissWithButtonIndex:(NSInteger)buttonIndex
{
//获取AlertView中的数据
NSString *str = [alertView textFieldAtIndex:0].text;
//将数据插入到array数组中(位置是点击的位置的下一行)
[self.array insertObject:str atIndex:[self.indexPath row]+1];
//用点击位置的下一行创建一个新的NSIndexPath
int newrow = [self.indexPath row]+1;
NSIndexPath *index = [NSIndexPath indexPathForRow:newrow inSection:0];
//在tableView的这个NSIndexPath中插入数据
[self.tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:index] withRowAnimation: UITableViewRowAnimationFade];
[self writeDataToFile:[self getPath] DataSource:self.array];
} -(void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
//删除按钮
if (RIGHTBUTTON) {
if ([indexPath row] != 0)
{
int row = [indexPath row];
[self.array removeObjectAtIndex:row];
[self.tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationMiddle];
[self writeDataToFile:[self getPath] DataSource:self.array];
}
}
//添加按钮
else
{
//获得点击的indexPath
self.indexPath = indexPath;
//创建一个UIAlertView,用来获得数据
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"enterstring" message:nil delegate:self cancelButtonTitle:@"ok" otherButtonTitles: nil];
//带有输入框的UIAlertView
alert.alertViewStyle = UIAlertViewStylePlainTextInput;
[alert show];
}
} //可以根据行来设置delete按钮位置上button的标题
-(NSString *)tableView:(UITableView *)tableView titleForDeleteConfirmationButtonForRowAtIndexPath:(NSIndexPath *)indexPath
{
return @"你删我一个试试";
} -(void)dealloc
{
[self.array release];
[self.indexPath release];
[super dealloc];
} - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
if ([indexPath row] == 0)
{
[self.navigationController popToRootViewControllerAnimated:YES];
}
else
{
EditViewController *edit = [[EditViewController alloc] init];
edit.sname = self.array[[indexPath row]];
edit.row = indexPath.row;
edit.delegate = self;
[self.navigationController pushViewController:edit animated:YES];
}
//蓝色背景消失
[tableView deselectRowAtIndexPath:indexPath animated:YES];
} -(void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)sourceIndexPath toIndexPath:(NSIndexPath *)destinationIndexPath
{
if (!RIGHTBUTTON) {
if ([destinationIndexPath row]!=0) {
id object= self.array[[sourceIndexPath row]];
[self.array removeObject:self.array[[sourceIndexPath row]]];
[self.array insertObject:object atIndex:[destinationIndexPath row]];
NSLog(@"%d",[self.array count]);
NSLog(@"当前位置%d,目标位置%d",[sourceIndexPath row],[destinationIndexPath row]);
[self writeDataToFile:[self getPath] DataSource:self.array];
}
//如果是跟第一行移动,则不允许这样操作,重新加载数据
[self.tableView reloadData];
}
} //实现遵循协议的方法
-(void)changeData:(int)row Name:(NSString *)name
{
[self.array replaceObjectAtIndex:row withObject:name];
[self writeDataToFile:[self getPath] DataSource:self.array];
[self.tableView reloadData];
}
@end

3.创建一个可以修改的viewController With xib,命名为:EditViewController

[IOS]包含增删改查移动的tableView展示+plist文件保存+程序意外退出保存Demo

EditViewController.h:

#import <UIKit/UIKit.h>
#import "DXWViewController.h"
@interface EditViewController : UIViewController
@property (retain, nonatomic) IBOutlet UITextField *name;
@property(retain,nonatomic)NSString *sname;
@property(assign,nonatomic) int row;
- (IBAction)assignBoardClick:(id)sender;
@property(nonatomic,retain)id<change>delegate;
@end

EditViewController.m:

#import "EditViewController.h"
#import "DXWViewController.h"
@interface EditViewController () @end @implementation EditViewController
//获取沙盒文件路径 -(NSString *)getPath { //用来获得Document地址 NSArray *arr = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);//注意:这里是NSDocument不是NSDocumentation,特别注意 NSLog(@"%@",arr); //在地址上增加文件 NSString *path = [arr[0] stringByAppendingPathComponent:@"abc.plist"]; NSLog(@"%@",path); return path; } - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
self.title = @"信息修改";
}
return self;
} -(void)viewWillAppear:(BOOL)animated
{
self.name.text = self.sname;
} - (void)viewDidLoad
{
[super viewDidLoad];
//首先要添加右上角的一个edit按钮,按钮按下去可以设置可以编辑
UIBarButtonItem *button = [[UIBarButtonItem alloc] initWithTitle:@"返回" style:UIBarButtonItemStyleBordered target:self action:@selector(itemLeftButtonClick:)];
//左按钮返回
self.navigationItem.leftBarButtonItem = button;
//右按钮编辑保存并返回
UIBarButtonItem *button1 = [[UIBarButtonItem alloc] initWithTitle:@"保存" style:UIBarButtonItemStyleBordered target:self action:@selector(itemRightButtonClick:)];
self.navigationItem.rightBarButtonItem = button1; //实现不按保存按钮也能够保存到文件的功能,获取应用
UIApplication *app = [UIApplication sharedApplication];
//在通知中心添加一个观察者,当符合UIApplicationWillResignActiveNotification条件时,调用方法
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(save:) name:UIApplicationWillResignActiveNotification object:app];
} -(void)save:(id)sender
{
self.sname = self.name.text;
if ([self.delegate respondsToSelector:@selector(changeData:Name:)]) {
[self.delegate changeData:self.row Name:self.sname];
}
} //返回
-(void)itemLeftButtonClick:(id)sender
{
[self.navigationController popViewControllerAnimated:YES];
}
//保存
-(void)itemRightButtonClick:(id)sender
{
[self changedata];
[self.navigationController popViewControllerAnimated:YES];
} - (void)changedata
{
self.sname = self.name.text;
if ([self.delegate respondsToSelector:@selector(changeData:Name:)]) {
[self.delegate changeData:self.row Name:self.sname];
}
} - (IBAction)assignBoardClick:(id)sender
{
[sender resignFirstResponder];
} - (void)dealloc {
[_name release];
[super dealloc];
}
@end

demo源文件:

http://download.csdn.net/detail/s10141303/6008305