1 #import <UIKit/UIKit.h>
2
3 @interface AppDelegate : UIResponder <UIApplicationDelegate>
4
5 @property (strong, nonatomic) UIWindow *window;
6
7
8 @end
1 #import "AppDelegate.h"
2 #import "RootViewController.h"
3 @interface AppDelegate ()
4
5 @end
6
7 @implementation AppDelegate
8
9
10 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
11 self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
12 // Override point for customization after application launch.
13 self.window.backgroundColor = [UIColor whiteColor];
14
15 self.window.rootViewController = [[RootViewController alloc] init];
16
17 [self.window makeKeyAndVisible];
18 return YES;
19 }
20
21 @end
1 #import <UIKit/UIKit.h>
2
3 @interface RootViewController : UIViewController
4
5 @end
1 #import "RootViewController.h"
2 #import "YXPresident.h"
3 #define Width [UIScreen mainScreen].bounds.size.width
4 #define Height [UIScreen mainScreen].bounds.size.height
5 #define gapHeight 20
6 #define Sheight 50
7
8 @interface RootViewController ()<UITableViewDataSource,UITableViewDelegate,UISearchDisplayDelegate,UISearchBarDelegate>
9
10 @property (nonatomic, strong) UISearchBar *searchBar;
11 @property (nonatomic, strong) UITableView *mTableView;
12 @property (nonatomic, strong) NSArray *presidents;
13 @property (nonatomic, strong) NSArray *filteredPresident;
14
15 @end
16
17 @implementation RootViewController
18
19 - (void)loadView
20 {
21 [super loadView];
22 // 初始化searchBar
23 self.searchBar = [[UISearchBar alloc] initWithFrame:CGRectMake(0, gapHeight, Width, Sheight)];
24 self.searchBar.delegate = self;
25
26 [self.view addSubview:self.searchBar];
27 // 初始化mTableView
28 self.mTableView = [[UITableView alloc] initWithFrame:CGRectMake(0, gapHeight+Sheight, Width, Height - Sheight - gapHeight) style:UITableViewStylePlain];
29 self.mTableView.dataSource = self;
30 self.mTableView.delegate = self;
31 [self.view addSubview:self.mTableView];
32 }
33 /**
34 * 初始化数组
35 */
36 - (void)viewDidLoad {
37 [super viewDidLoad];
38 self.presidents = [[NSArray alloc] initWithObjects:
39 [YXPresident presidentWithFirstName:@"George" lastName:@"Washington"],
40 [YXPresident presidentWithFirstName:@"John" lastName:@"Adams"],
41 [YXPresident presidentWithFirstName:@"Thomas" lastName:@"Jeffeson"],
42 [YXPresident presidentWithFirstName:@"James" lastName:@"Madison"],
43 [YXPresident presidentWithFirstName:@"James" lastName:@"Monroe"],
44 [YXPresident presidentWithFirstName:@"John Quincy" lastName:@"Adams"],
45 [YXPresident presidentWithFirstName:@"Andrew" lastName:@"Jackson"],
46 [YXPresident presidentWithFirstName:@"Martin" lastName:@"van Buren"],
47 [YXPresident presidentWithFirstName:@"William Henry" lastName:@"Harrison"],
48 [YXPresident presidentWithFirstName:@"John" lastName:@"Tyler"],
49 [YXPresident presidentWithFirstName:@"James K" lastName:@"Polk"],
50 [YXPresident presidentWithFirstName:@"Zachary" lastName:@"Taylor"],
51 [YXPresident presidentWithFirstName:@"Millard" lastName:@"Fillmore"],
52 [YXPresident presidentWithFirstName:@"Franklin" lastName:@"Pierce"],
53 [YXPresident presidentWithFirstName:@"James" lastName:@"Buchanan"],
54 [YXPresident presidentWithFirstName:@"Abraham" lastName:@"Lincoln"],
55 [YXPresident presidentWithFirstName:@"Andrew" lastName:@"Johnson"],
56 [YXPresident presidentWithFirstName:@"Ulysses S" lastName:@"Grant"],
57 [YXPresident presidentWithFirstName:@"Rutherford B" lastName:@"Hayes"],
58 [YXPresident presidentWithFirstName:@"James A" lastName:@"Garfield"],
59 [YXPresident presidentWithFirstName:@"Chester A" lastName:@"Arthur"],
60 [YXPresident presidentWithFirstName:@"Grover" lastName:@"Cleveland"],
61 [YXPresident presidentWithFirstName:@"Bejamin" lastName:@"Harrison"],
62 [YXPresident presidentWithFirstName:@"Grover" lastName:@"Cleveland"],
63 [YXPresident presidentWithFirstName:@"William" lastName:@"McKinley"],
64 [YXPresident presidentWithFirstName:@"Theodore" lastName:@"Roosevelt"],
65 [YXPresident presidentWithFirstName:@"William Howard" lastName:@"Taft"],
66 [YXPresident presidentWithFirstName:@"Woodrow" lastName:@"Wilson"],
67 [YXPresident presidentWithFirstName:@"Warren G" lastName:@"Harding"],
68 [YXPresident presidentWithFirstName:@"Calvin" lastName:@"Coolidge"],
69 [YXPresident presidentWithFirstName:@"Herbert" lastName:@"Hoover"],
70 [YXPresident presidentWithFirstName:@"Franklin D" lastName:@"Roosevelt"],
71 [YXPresident presidentWithFirstName:@"Harry S" lastName:@"Truman"],
72 [YXPresident presidentWithFirstName:@"Dwight D" lastName:@"Eisenhower"],
73 [YXPresident presidentWithFirstName:@"John F" lastName:@"Kennedy"],
74 [YXPresident presidentWithFirstName:@"Lyndon B" lastName:@"Johnson"],
75 [YXPresident presidentWithFirstName:@"Richard" lastName:@"Nixon"],
76 [YXPresident presidentWithFirstName:@"Gerald" lastName:@"Ford"],
77 [YXPresident presidentWithFirstName:@"Jimmy" lastName:@"Carter"],
78 [YXPresident presidentWithFirstName:@"Ronald" lastName:@"Reagan"],
79 [YXPresident presidentWithFirstName:@"George H W" lastName:@"Bush"],
80 [YXPresident presidentWithFirstName:@"Bill" lastName:@"Clinton"],
81 [YXPresident presidentWithFirstName:@"George W" lastName:@"Bush"],
82 [YXPresident presidentWithFirstName:@"Barack" lastName:@"Obama"],
83 nil];
84
85 }
86
87 #pragma mark - UITableViewDelegate -
88 - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
89 {
90 if (self.filteredPresident != nil) {
91 return [self.filteredPresident count];
92 }
93 else{
94 return [self.presidents count];
95 }
96 }
97
98 - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
99 {
100 static NSString *Identify = @"cell";
101 UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:Identify];
102 if (cell == nil) {
103 cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:Identify];
104 }
105 YXPresident *president = [[YXPresident alloc] init];
106 if (self.filteredPresident != nil) {
107 president = [self.filteredPresident objectAtIndex:indexPath.row];
108 }else{
109 president = [self.presidents objectAtIndex:indexPath.row];
110 }
111 if (president) {
112 cell.textLabel.text = [NSString stringWithFormat:@"%@ %@",president.firstName, president.lastName];
113 }
114 return cell;
115 }
116
117 #pragma mark - Content Filtering
118 - (void)filterContentForSearchText:(NSString *)searchText
119 {
120 // 设置搜索条件
121 NSPredicate *predicate = [NSPredicate predicateWithFormat:@"firstName CONTAINS[cd] %@ OR lastName CONTAINS[cd] %@",searchText,searchText];
122 // 返回搜索结果
123 self.filteredPresident = [self.presidents filteredArrayUsingPredicate:predicate];
124 }
125 #pragma mark - UISearchBarDelegate -
126 - (void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText
127 {
128 [self filterContentForSearchText:searchText ];
129 if (self.filteredPresident.count == 0 && [searchBar.text isEqual: @""]) {
130 self.filteredPresident = nil;
131 }
132 [self.mTableView reloadData];
133 }
134
135 @end
1 #import <Foundation/Foundation.h>
2
3 @interface YXPresident : NSObject
4
5 @property (nonatomic, copy) NSString *firstName;
6 @property (nonatomic, copy) NSString *lastName;
7
8 + (YXPresident *)presidentWithFirstName:(NSString *)firstName lastName:(NSString *)lastName;
9
10 @end
1 #import "YXPresident.h"
2
3 @implementation YXPresident
4 @synthesize firstName, lastName;
5
6 + (YXPresident *)presidentWithFirstName:(NSString *)firstName lastName:(NSString *)lastName
7 {
8 YXPresident *president = [[YXPresident alloc] init];
9 president.firstName = firstName;
10 president.lastName = lastName;
11 return president;
12 }
13
14 @end
