iOS开发之WMPageController的使用

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这一篇记录的是iOS开发中第三方库WMPageController控件的使用方法，WMPageController类似于Android平台上的ViewPager控件，主要是用来分页显示内容的，可以通过手势滑动来切换页面，也可以通过点击标题部分来切换页面，如下图所示：

WMPageController的git地址为：https://github.com/wangmchn/WMPageController

下面就记录WMPageController控件的使用方法：

（1）新建工程WMPageControllerTest，然后通过cocoapods引入WMPageController到项目中，Podfile文件的内容如下：

platform:ios, '7.0'
pod 'WMPageController', '~> 1.4.1'

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(50, 50, 100, 50)];
    label.text = @"体育新闻";
    [self.view addSubview:label];
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end

（3）再创建一个ViewController2继承自UIViewController，并且在ViewController2.m文件中加入以下代码：

#import "ViewController2.h"

@interface ViewController2 ()

@end

@implementation ViewController2

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(50, 50, 100, 50)];
    label.text = @"娱乐新闻";
    [self.view addSubview:label];
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end

#pragma mark 返回一个WMPageController对象
- (WMPageController *) getPages {
    //WMPageController中包含的页面数组
    NSArray *controllers = [NSArray arrayWithObjects:[ViewController class], [ViewController2 class], nil];
    //WMPageController控件的标题数组
    NSArray *titles = [NSArray arrayWithObjects:@"体育新闻", @"娱乐新闻", nil];
    //用上面两个数组初始化WMPageController对象
    WMPageController *pageController = [[WMPageController alloc] initWithViewControllerClasses:controllers andTheirTitles:titles];
    //设置WMPageController每个标题的宽度
    pageController.menuItemWidth = 100;
    //设置WMPageController标题栏的高度
    pageController.menuHeight = 35;
    //设置WMPageController选中的标题的颜色
    pageController.titleColorSelected = [UIColor colorWithRed:200 green:0 blue:0 alpha:1];
    return pageController;
}

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    // Override point for customization after application launch.
    WMPageController *pageController = [self getPages];
    UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:pageController];
    self.window.rootViewController = navController;
    return YES;
}

上面是在代码中使用WMPageController，根据github上提供的demo，WMPageController还可以在Storyboard中使用，下面说明如何在storyboard中使用WMPageController控件：

（1）新建一个项目WMPageControllerTest2

（2）打开Main.storyboard，然后选中ViewController视图，给它添加一个导航栏，如下图所示：

（3）下面创建一个新的ViewController，取名为NewsViewController，并且在Main.storyboard中也拖入一个ViewController视图，将该视图设置为NewsViewController，然后将StoryboardID设置为“viewController”，如下图所示：

在新创建的ViewController视图中加入一个UILabel标签，如上图所示。

（4）打开ViewController.h文件，让ViewController继承自WMPageController，代码如下所示：

#import <UIKit/UIKit.h>
#import "WMPageController.h"

@interface ViewController : WMPageController

#pragma mark 标题数组
@property (strong, nonatomic) NSArray *titles;

@end

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

#pragma mark 初始化代码
- (instancetype)initWithCoder:(NSCoder *)aDecoder {
    self = [super initWithCoder:aDecoder];
    if(self) {
        self.menuHeight = 35;
        self.menuItemWidth = 100;
        self.menuViewStyle = WMMenuViewStyleLine;
        self.titles = [NSArray arrayWithObjects:@"娱乐新闻", @"体育新闻", nil];
    }
    return self;
}

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
}

#pragma mark 返回index对应的标题
- (NSString *)pageController:(WMPageController *)pageController titleAtIndex:(NSInteger)index {
    return [self.titles objectAtIndex:index];
}

#pragma mark 返回子页面的个数
- (NSInteger)numbersOfChildControllersInPageController:(WMPageController *)pageController {
    return [self.titles count];
}

#pragma mark 返回某个index对应的页面，该页面从Storyboard中获取
- (UIViewController *)pageController:(WMPageController *)pageController viewControllerAtIndex:(NSInteger)index {
    UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
    UIViewController *controller = [storyboard instantiateViewControllerWithIdentifier:@"viewController"]; //这里的identifer是我们之前设置的StoryboardID
    return controller;
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end

需要注意的是，WMPageController的标题部分有几个样式可以选择，样式的枚举值如下：

typedef NS_ENUM(NSUInteger, WMMenuViewStyle) {
    WMMenuViewStyleDefault,     // 默认
    WMMenuViewStyleLine,        // 带下划线 (若要选中字体大小不变，设置选中和非选中大小一样即可)
    WMMenuViewStyleFoold,       // 涌入效果 (填充)
    WMMenuViewStyleFooldHollow, // 涌入效果 (空心的)
};

iOS开发之WMPageController的使用

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原文地址：http://blog.csdn.net/yubo_725/article/details/51159633