iPhone UITableView 部分 [英] iPhone UITableView Sections

问题描述

我一直在编写一个 UITableView 并且每个单元格推一个新视图，我想要做的就是添加两个新部分，一个男性和一个女性，第一个和第二个声音需要在男性部分，第三个声音需要在女性部分.

I have been programming a UITableView and each cells pushes a new view, All I Want to do is add two new sections one male and one female, first and second voice need to be in the male section and the third voice needs to be in the female section.

#import "FirstLevelViewController.h"
#import "SecondLevelViewController.h"
#import "DisclosureDetailController.h"
#import "SecondVoiceController.h"
#import "ThirdVoiceController.h"



@implementation FirstLevelViewController
@synthesize controllers;

-(void)viewDidLoad {
    self.title = @"Voices";

    NSMutableArray *male = [[NSMutableArray alloc] init];


    DisclosureDetailController *th = [DisclosureDetailController alloc];
    th.title = @"First Voice";
    [male addObject:th];
    [th release];

    SecondVoiceController *array2 = [SecondVoiceController alloc];
    array2.title = @"Second Voice";
    [male addObject:array2];
    [array2 release];

    ThirdVoiceController *array3 = [ThirdVoiceController alloc];
    array3.title = @"Third Voice";
    [male addObject:array3];
    [array3 release];




    self.controllers = male;
    [male release];
    [super viewDidLoad];
}

-(void)viewDidUnload {

    self.controllers = nil;
    [super viewDidUnload];
}

-(void)dealloc {

    [controllers release];
    [super dealloc];
}

-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    return [self.controllers count];
}

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

    static NSString *FirstLevelCell= @"FirstLevelCell";

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:FirstLevelCell];
    if (cell == nil) {
        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:FirstLevelCell] autorelease];
    }
    NSUInteger row = [indexPath row];
    SecondLevelViewController *controller = [controllers objectAtIndex:row];
    cell.textLabel.text = controller.title;
    cell.imageView.image = controller.rowImage;
    cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
    return cell;
}

-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {

    NSUInteger row = [indexPath row];

    SecondLevelViewController *nextViewController = [self.controllers
                                                     objectAtIndex:row];

    [self.navigationController pushViewController:nextViewController animated:YES];
}

我想要做的就是添加两个新部分，一个男性和一个女性，第一和第二个声音需要在男性部分，第三个声音需要在女性部分.请帮助被困在这个问题上一段时间！

All I Want to do is add two new sections one male and one female, first and second voice need to be in the male section and the third voice needs to be in the female section. Please help been stuck on this for a while!

推荐答案

tableView 委托有一个方法叫做 numberOfSectionsInTableView.返回您要创建的部分的数量.

The tableView delegate has a method called numberOfSectionsInTableView. Return the number of sections that you want to create.

然后，在 cellForRowAtIndexPath 中，使用 indexPath 的其他属性 [indexPath section] 来根据节分隔行.

Then, in the cellForRowAtIndexPath use indexPath's other property [indexPath section] to segregate rows based on sections.

一个例子

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
    return 2; //one male and other female
}

-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section 
{
    switch(section){
       case 0:
       return [male count];
       break;
       case 1:
       return [female count];
       break;
    }
}


-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
 {

    static NSString *FirstLevelCell= @"FirstLevelCell";

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:FirstLevelCell];
    if (cell == nil) {
        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:FirstLevelCell] autorelease];
    }
     SecondLevelViewController *controller;
    switch([indexPath section]){
       case 0:
       controller = [male objectAtIndex: [indexPath row] ];
       break;
       case 1:
       controller = [female objectAtIndex: [indexPath row] ];
       break;
    }
    cell.textLabel.text = controller.title;
    cell.imageView.image = controller.rowImage;
    cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
    return cell;
}

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