需要帮助将用户文本添加到NSArray [英] Need Help Adding User's Text To NSArray
本文介绍了需要帮助将用户文本添加到NSArray的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
当用户单击表的+时，我会提示用户输入文本.向他们显示一个带有textField提示的UIAlert，然后将文本另存为字符串在字典中.
I am prompting users for text when they click the + for my table. They are shown a UIAlert with textField prompt and the text is then saved as a string in a dictionary.
到目前为止，我有以下代码:
I have the following code so far:
- (void)viewDidLoad
{
NSArray *myData = [NSMutableArray arrayWithContentsOfFile:@"mydata"];
if (myData == nil)
{
myData = [NSMutableArray array];
}
[super viewDidLoad];
UIBarButtonItem * addButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:@selector(showPrompt)];
[self.navigationItem setLeftBarButtonItem:addButton];
[addButton release];
self.navigationItem.rightBarButtonItem = self.editButtonItem;
}
-(void)showPrompt
{
AlertPrompt *prompt = [AlertPrompt alloc];
prompt = [prompt initWithTitle:@"Add Workout Day" message:@"\n \n Please enter title for workout day" delegate:self cancelButtonTitle:@"Cancel" okButtonTitle:@"Add"];
[prompt show];
[prompt release];
}
- (void)alertView:(UIAlertView *)alertView willDismissWithButtonIndex:(NSInteger)buttonIndex
{
if (buttonIndex != [alertView cancelButtonIndex])
{
NSString *entered = [(AlertPrompt *)alertView enteredText];
NSLog([NSString stringWithFormat:@"%@", entered]);
}
}
NSlog显示输入的文本，但是如何将其保存在阵列中?
The NSlog shows the entered text but how do I get it to save in my Array?
我还应该将文本保存为字符串，包含字符串的字典还是包含字符串的数组本身?因为每个其他字典中都会有一个字典或数组，其中包含用户可以选择的对象(他们可以选择的对象存储在单独的plist中).
Also, should I save the text as a string, a dictionary with a string in it, or an array itself with a string in it? Because there is going to be a dictionary or array within each of these other dictionaries with objects that the user can choose from (the objects they can choose from are stored in a separate plist).
例如，用户输入"Arms Day"作为提示，然后将其保存到数组中，他可以从我存储在data.plist中的手臂的所有练习中进行选择.
For example, User types in "Arms Day" for the prompt, then it saves to the array and he can choose from all the exercises for the arm that I have stored in a data.plist
使用新代码更新:
#import "RoutineTableViewController.h"
#import "AlertPrompt.h"
@implementation RoutineTableViewController
@synthesize routineArray;
- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self) {
}
return self;
}
- (void)dealloc
{
[super dealloc];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
}
#pragma mark - View lifecycle
- (void)viewDidLoad
{
/*
NSArray *myData = [NSMutableArray arrayWithContentsOfFile:@"mydata"];
if (myData == nil)
{
myData = [NSMutableArray array];
}
*/
[super viewDidLoad];
UIBarButtonItem * addButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:@selector(showPrompt)];
[self.navigationItem setLeftBarButtonItem:addButton];
[addButton release];
self.navigationItem.rightBarButtonItem = self.editButtonItem;
}
-(void)showPrompt
{
AlertPrompt *prompt = [AlertPrompt alloc];
prompt = [prompt initWithTitle:@"Add Workout Day" message:@"\n \n Please enter title for workout day" delegate:self cancelButtonTitle:@"Cancel" okButtonTitle:@"Add"];
[prompt show];
[prompt release];
}
- (void)alertView:(UIAlertView *)alertView willDismissWithButtonIndex:(NSInteger)buttonIndex
{
if (buttonIndex != [alertView cancelButtonIndex])
{
NSString *entered = [(AlertPrompt *)alertView enteredText];
NSLog([NSString stringWithFormat:@"%@", entered]);
[self.routineArray addObject:entered]; }
}
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
if (editingStyle == UITableViewCellEditingStyleDelete)
{
// do delete
// get count of rows in UITableView and hide table if it's empty
}
}
- (void)viewDidUnload
{
[super viewDidUnload];
}
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
}
- (void)viewDidAppear:(BOOL)animated
{
[super viewDidAppear:animated];
}
- (void)viewWillDisappear:(BOOL)animated
{
[super viewWillDisappear:animated];
}
- (void)viewDidDisappear:(BOOL)animated
{
[super viewDidDisappear:animated];
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return [routineArray count];
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return 0;
}
- (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.textLabel.text = [self.routineArray objectAtIndex:indexPath.row];
return cell;
}
更新3:
@implementation RoutineTableViewController
@synthesize myArray;
- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self) {
}
return self;
}
- (void)dealloc
{
[super dealloc];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
}
#pragma mark - View lifecycle
- (void)viewDidLoad
{
myArray = [[NSMutableArray alloc] init];
myData = [[NSMutableArray arrayWithContentsOfFile:@"mydata"] retain];
if (myData == nil)
{
myData = [NSMutableArray array];
}
[super viewDidLoad];
UIBarButtonItem * addButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:@selector(showPrompt)];
[self.navigationItem setLeftBarButtonItem:addButton];
[addButton release];
self.navigationItem.rightBarButtonItem = self.editButtonItem;
}
-(void)showPrompt
{
AlertPrompt *prompt = [AlertPrompt alloc];
prompt = [prompt initWithTitle:@"Add Workout Day" message:@"\n \n Please enter title for workout day" delegate:self cancelButtonTitle:@"Cancel" okButtonTitle:@"Add"];
[prompt show];
[prompt release];
}
- (void)alertView:(UIAlertView *)alertView willDismissWithButtonIndex:(NSInteger)buttonIndex
{
if (buttonIndex != [alertView cancelButtonIndex])
{
NSString *entered = [(AlertPrompt *)alertView enteredText];
NSLog([NSString stringWithFormat:@"%@", entered]);
//if(myData && entered)
{
[myArray addObject:entered];
}
}
NSLog(@"%@",[myArray objectAtIndex:0]);
[tableView reloadData];
}
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
if (editingStyle == UITableViewCellEditingStyleDelete)
{
// do delete
// get count of rows in UITableView and hide table if it's empty
}
}
- (void)viewDidUnload
{
[super viewDidUnload];
}
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
}
- (void)viewDidAppear:(BOOL)animated
{
[super viewDidAppear:animated];
}
- (void)viewWillDisappear:(BOOL)animated
{
[super viewWillDisappear:animated];
}
- (void)viewDidDisappear:(BOOL)animated
{
[super viewDidDisappear:animated];
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return [myArray count];
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return 0;
}
- (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.textLabel.text = [self.myArray objectAtIndex:indexPath.row];
return cell;
}
推荐答案
建议您将用户文本保存在 NSMutableArray 中.
Suggest you to save the user text in NSMutableArray.
在.h文件中声明NSMutableArray变量，
NSMutableArray *myData;
在源文件.m中:
myData = [[NSMutableArray arrayWithContentsOfFile:@"mydata"] retain];
if (myData == nil)
{
myData = [NSMutableArray array];
}
在数组中添加文本.
if (buttonIndex != [alertView cancelButtonIndex])
{
NSString *entered = [(AlertPrompt *)alertView enteredText];
NSLog([NSString stringWithFormat:@"%@", entered]);
if(myData && entered)
{
[myArray addObject:entered];
}
}
这篇关于需要帮助将用户文本添加到NSArray的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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