[IOS]UITableView分區+索引顯示

效果：

步驟：

1.創建一個ViewController，New File->Cocoa Touch->Objective-C class->Class:ViewController,Subclass of:UIViewController

2.打開xib，在view中添加TableView，并將TableView的兩個屬性拖到File's Owner中，

可以設置tableview的分區樣式，選擇style

3.ViewController.h：

#import <UIKit/UIKit.h> @interface newViewController : UIViewController<UITableViewDataSource,UITableViewDelegate> @property (retain, nonatomic) IBOutlet UITableView *tableView; @property(retain,nonatomic)NSDictionary *dic; @property(retain,nonatomic)NSArray *keys; @end

#import "newViewController.h"  @interface newViewController ()  @end  @implementation newViewController  - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {     self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];     if (self) {         // Custom initialization     }     return self; }  - (void)viewDidLoad {     [super viewDidLoad];     NSString *path = [[NSBundle mainBundle] pathForResource:@"sortednames" ofType:@"plist"];     self.dic = [NSDictionary dictionaryWithContentsOfFile:path];          self.keys = [self.dic allKeys];     self.keys = [self.keys sortedArrayUsingSelector:@selector(compare:)]; }  //tableView有多少分區 -(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {     return [self.keys count]; }  //每個分區對應多少行 -(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {     NSString *key = self.keys[section];//通過第幾個分區拿到對應的key     NSArray *arr = [self.dic objectForKey:key];//通過這個key獲得對應的Array     return [arr count]; }  -(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {     static NSString *str = @"str";     UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:str];          if (cell == nil) {         cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:str];     }     int section = [indexPath section];     int row = [indexPath row];          NSString *key = self.keys[section];     NSArray *arr = [self.dic objectForKey:key];     cell.textLabel.text = arr[row];     return cell; } //在每個分區上顯示什么內容 -(NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {     return self.keys[section]; }  - (void)didReceiveMemoryWarning {     [super didReceiveMemoryWarning];     // Dispose of any resources that can be recreated. } //設置索引 -(NSArray *)sectionIndexTitlesForTableView:(UITableView *)tableView {     return self.keys; }  - (void)dealloc {     [_tableView release];     [self.keys release];     [self.dic release];     [super dealloc]; } @end