使用RNSwipeViewController類(lèi)庫(kù)進(jìn)行視圖切換

       如今很多應(yīng)用已經(jīng)不再局限于點(diǎn)擊按鈕觸發(fā)事件來(lái)進(jìn)行視圖之間切換，為迎合給予用戶(hù)更好體驗(yàn)，體現(xiàn)iOS系統(tǒng)極佳用戶(hù)體驗(yàn)，使用手勢(shì)來(lái)進(jìn)行各個(gè)視圖之間切換，用戶(hù)至于一個(gè)大拇指在屏幕中央就可瀏覽到很多信息；

關(guān)于 RNSwipeViewController: https://github.com/rnystrom/RNSwipeViewController

RNSwipeViewController是別人已經(jīng)寫(xiě)好的一個(gè)ViewController容器，剩下我們要做的就是把自己的視圖容器放到這個(gè)容器中進(jìn)行管理。

首先學(xué)習(xí) RNSwipeViewController里面的Demo

1.創(chuàng)建一個(gè)Single View Application工程，next,勾選 Use Storyboards,Use Automatic  Reference Counting

2.將RNSwipeViewController拖入新建到工程，添加QuartzCore.framework

3.新建四個(gè)類(lèi)CenterViewController、LeftViewController、RightViewController、BottomViewController,繼承UIViewController類(lèi)

4.打開(kāi)StoryBoard,從庫(kù)里拖入四個(gè)ViewController視圖控制器到StoryBoard里面，選中一個(gè)視圖控制器設(shè)置類(lèi)名和Storyboard ID，其他三個(gè)類(lèi)似

，

5.在ViewController.h將加入#import "RNSwipeViewController.h"并將繼承類(lèi)改為RNSwipeViewController，在ViewDidLoad方法中

- (void)viewDidLoad
{
    [super viewDidLoad];
    CenterViewController *centerView = [self.storyboard instantiateViewControllerWithIdentifier:@"CenterViewController"];
    UINavigationController *centerNav = [[UINavigationController alloc] initWithRootViewController:centerView];
    centerView.title  =@"Center";
    self.centerViewController = centerNav;
    self.leftViewController = [self.storyboard instantiateViewControllerWithIdentifier:@"LeftViewController"];
                                                                                                         
    self.rightViewController = [self.storyboard instantiateViewControllerWithIdentifier:@"RightViewController"];
                                                                                                           
    self.bottomViewController = [self.storyboard instantiateViewControllerWithIdentifier:@"BottomViewController"];
                                                                                                            
}

如此我們就完成三個(gè)視圖之間手勢(shì)交互，首先出現(xiàn)的視圖作為主視圖，其他試圖再是在它上面進(jìn)行運(yùn)動(dòng)，手指向左滑右側(cè)視圖出現(xiàn)，向右滑動(dòng)出現(xiàn)左視圖，向上滑動(dòng)出現(xiàn)底部視圖出現(xiàn)

..

平常我們?cè)跇?gòu)建一個(gè)帶有XIB視圖控制類(lèi)的時(shí)候，初始化一般這樣

CenterViewController *centerVC = [[CenterViewController alloc] initWithNibName:@"CenterViewController" bundle:nil];

但是在StoryBoard中，視圖的Storyboard ID  成了這是視圖的唯一標(biāo)示，再給一個(gè)視圖所屬類(lèi)時(shí)，設(shè)定好該視圖的Storyboard ID，進(jìn)行初始化時(shí)CenterViewController *centerView = [self.storyboard instantiateViewControllerWithIdentifier:@"CenterViewController"];

這個(gè)類(lèi)庫(kù)中也提供按鈕點(diǎn)擊進(jìn)行視圖交互方法，同時(shí)也設(shè)置視圖顯示寬度的屬性，在類(lèi)庫(kù)實(shí)現(xiàn)的里面視圖寬度有默認(rèn)值

_leftVisibleWidth = 200.f;
_rightVisibleWidth = 200.f;
_bottomVisibleHeight = 300.0f;

再此我們可以在自己類(lèi)里修改這個(gè)屬性，根據(jù)自己需求，作圖下設(shè)置

ViewController.m

- (void)viewDidLoad
{
    [super viewDidLoad];
                                                                                                
                                                                                                
    CenterViewController *centerView = [self.storyboard instantiateViewControllerWithIdentifier:@"CenterViewController"];
    UINavigationController *centerNav = [[UINavigationController alloc] initWithRootViewController:centerView];
    centerView.title  =@"Center";
    self.centerViewController = centerNav;
    self.leftViewController = [self.storyboard instantiateViewControllerWithIdentifier:@"LeftViewController"];
    self.leftVisibleWidth = 100;
    self.rightViewController = [self.storyboard instantiateViewControllerWithIdentifier:@"RightViewController"];
    self.rightVisibleWidth  = self.view.frame.size.width;
    self.bottomViewController = [self.storyboard instantiateViewControllerWithIdentifier:@"BottomViewController"];
                                                                                                
}

我們?cè)俳o導(dǎo)航欄上添加兩個(gè)按鈕，在CenterViewController類(lèi)中，包含#import "UIViewController+RNSwipeViewController.h"

- (void)viewDidLoad
{
    [super viewDidLoad];
                                                                                        
    UIButton *leftBtn = [UIButton buttonWithType:UIButtonTypeCustom];
    leftBtn.frame = CGRectMake(0, 0, 44, 44);
    [leftBtn setImage:[UIImage p_w_picpathNamed:@"left.png"] forState:UIControlStateNormal];
    [leftBtn addTarget:self action:@selector(toggleLeft) forControlEvents:UIControlEventTouchUpInside];
    UIBarButtonItem *leftBar = [[UIBarButtonItem alloc] initWithCustomView:leftBtn];
    self.navigationItem.leftBarButtonItem = leftBar
    ;
                                                                                        
                                                                                        
    UIButton *rightBtn = [UIButton buttonWithType:UIButtonTypeCustom];
    rightBtn.frame = CGRectMake(self.view.frame.size.width-44, 0,44 , 44);
    [rightBtn setImage:[UIImage p_w_picpathNamed:@"right.png"] forState:UIControlStateNormal];
    [rightBtn addTarget:self action:@selector(toggleRight) forControlEvents:UIControlEventTouchUpInside];
    UIBarButtonItem *rightBar = [[UIBarButtonItem alloc] initWithCustomView:rightBtn];
    self.navigationItem.rightBarButtonItem = rightBar;
    ;
                                                                                         
}

接著連個(gè)按鈕事件，為了顯示明顯我們可以設(shè)置一下三個(gè)視圖背景顏色

-(void)toggleLeft
{
    [self.swipeController showLeft];
}
-(void)toggleRight
{
    [self.swipeController showRight];
}

RNSwipeViewController有一個(gè)協(xié)議方法，可以監(jiān)聽(tīng)當(dāng)前視圖顯示百分比（0~100）

RNSwipeViewController have a protocol method, can monitor the current view shows percentage (0 ~ 100)

#import <UIKit/UIKit.h>
#import "RNRevealViewControllerProtocol.h"
@interface LeftViewController : UIViewController<RNRevealViewControllerProtocol>
@end

協(xié)議方法,當(dāng)左側(cè)視圖完全顯示時(shí)彈出一個(gè)alertView

-(void)changedPercentReveal:(NSInteger)percent
{
    if (percent == 100) {
        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"提示" message:@"這是一個(gè)測(cè)試" delegate:self cancelButtonTitle:@"OK" otherButtonTitles: nil];
        [alert show ];
                                                                
                                                               
    }
}

×××地址:https://github.com/XFZLDXF/XFSwipeView.git