132设置被选中单元格的背景颜色（扩展知识：设置被选中单元格的背景图片）

效果如下：

ViewController.h

1 #import <UIKit/UIKit.h>

2 

3 @interface ViewController : UITableViewController

4 @property (strong, nonatomic) NSArray *arrDataSource;

5 @property (strong, nonatomic) NSArray *arrSelectionStyle;

6 

7 @end

ViewController.m

 1 #import "ViewController.h"

 2 

 3 @interface ViewController ()

 4 - (void)layoutUI;

 5 @end

 6 

 7 @implementation ViewController

 8 

 9 - (void)viewDidLoad {

10     [super viewDidLoad];

11     

12     [self layoutUI];

13 }

14 

15 - (void)didReceiveMemoryWarning {

16     [super didReceiveMemoryWarning];

17     // Dispose of any resources that can be recreated.

18 }

19 

20 - (void)layoutUI {

21     _arrDataSource = @[@"UITableViewCellSelectionStyleNone",

22                        @"UITableViewCellSelectionStyleBlue（失效得用cell.selectedBackgroundView自定义）",

23                        @"UITableViewCellSelectionStyleGray",

24                        @"UITableViewCellSelectionStyleDefault（默认值；iOS7有效，本身定义就是灰色）",

25                        @"自定义被选中的单元格的背景颜色",

26                        @"自定义被选中的单元格的背景图片"];

27     

28     _arrSelectionStyle = @[[NSNumber numberWithInteger:UITableViewCellSelectionStyleNone],

29                            [NSNumber numberWithInteger:UITableViewCellSelectionStyleBlue],

30                            [NSNumber numberWithInteger:UITableViewCellSelectionStyleGray],

31                            [NSNumber numberWithInteger:UITableViewCellSelectionStyleDefault],

32                            [NSNumber numberWithInteger:4],

33                            [NSNumber numberWithInteger:5]];

34     

35     self.navigationItem.title = @"设置被选中单元格的背景颜色";

36 }

37 

38 #pragma mark - TableView

39 - (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {

40     return @"selectionStyle列表";

41 }

42 

43 - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {

44     return 1;

45 }

46 

47 - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {

48     return _arrDataSource.count;

49 }

50 

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

52     static NSString *cellIdentifier = @"cellIdentifier";

53     UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];

54     if (!cell) {

55         cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier];

56     }

57     

58     NSInteger row = indexPath.row;

59     cell.textLabel.text = _arrDataSource[row];

60     cell.textLabel.numberOfLines = 2;

61     

62     UIImage *img = nil;

63     //设置被选中单元格的背景颜色或背景图片

64     switch (row) {

65         case 0:

66         case 2:

67         case 3:

68             cell.selectionStyle = [_arrSelectionStyle[row] integerValue];

69             break;

70         case 1:

71         case 4:

72             cell.selectedBackgroundView = [[UIView alloc] init];

73             cell.selectedBackgroundView.backgroundColor = [UIColor blueColor]; //对应的有cell.backgroundColor

74             break;

75         case 5:

76             img = [UIImage imageNamed:@"Frame"];

77             img = [img stretchableImageWithLeftCapWidth:20 topCapHeight:20];

78             cell.selectedBackgroundView = [[UIImageView alloc] initWithImage:img]; //对应的有cell.backgroundView

79             break;

80     }

81     return cell;

82     

83     /*

84      typedef NS_ENUM(NSInteger, UITableViewCellSelectionStyle) {

85      UITableViewCellSelectionStyleNone,

86      UITableViewCellSelectionStyleBlue,

87      UITableViewCellSelectionStyleGray,

88      UITableViewCellSelectionStyleDefault NS_ENUM_AVAILABLE_IOS(7_0)

89      };

90      */

91 }

92 

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

94     

95 }

96 

97 @end

AppDelegate.h

1 #import <UIKit/UIKit.h>

2 

3 @interface AppDelegate : UIResponder <UIApplicationDelegate>

4 @property (strong, nonatomic) UIWindow *window;

5 @property (strong, nonatomic) UINavigationController *navigationController;

6 

7 @end

AppDelegate.m

 1 #import "AppDelegate.h"

 2 #import "ViewController.h"

 3 

 4 @interface AppDelegate ()

 5 @end

 6 

 7 @implementation AppDelegate

 8 

 9 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

10     _window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

11     ViewController *viewController = [[ViewController alloc] init];

12     _navigationController = [[UINavigationController alloc] initWithRootViewController:viewController];

13     _window.rootViewController = _navigationController;

14     //[_window addSubview:_navigationController.view]; //当_window.rootViewController关联时，这一句可有可无

15     [_window makeKeyAndVisible];

16     return YES;

17 }

18 

19 - (void)applicationWillResignActive:(UIApplication *)application {

20 }

21 

22 - (void)applicationDidEnterBackground:(UIApplication *)application {

23 }

24 

25 - (void)applicationWillEnterForeground:(UIApplication *)application {

26 }

27 

28 - (void)applicationDidBecomeActive:(UIApplication *)application {

29 }

30 

31 - (void)applicationWillTerminate:(UIApplication *)application {

32 }

33 

34 @end