#import "HWNewfeatureViewController.h"

#import "HWTabBarViewController.h"

#define HWNewfeatureCount 4

@interface HWNewfeatureViewController () <UIScrollViewDelegate>

@property (nonatomic, weak) UIPageControl *pageControl;

@property (nonatomic, weak) UIScrollView *scrollView;

@end

@implementation HWNewfeatureViewController

- (void)viewDidLoad

{

    [super viewDidLoad];

    // 1.创建一个scrollView：显示所有的新特性图片

    UIScrollView *scrollView = [[UIScrollView alloc] init];

    scrollView.frame = self.view.bounds;

    [self.view addSubview:scrollView];

    self.scrollView = scrollView;

    // 2.添加图片到scrollView中

    CGFloat scrollW = scrollView.width;

    CGFloat scrollH = scrollView.height;

    for (int i = ; i<HWNewfeatureCount; i++) {

        UIImageView *imageView = [[UIImageView alloc] init];

        imageView.width = scrollW;

        imageView.height = scrollH;

        imageView.y = ;

        imageView.x = i * scrollW;

        // 显示图片

        NSString *name = [NSString stringWithFormat:@"new_feature_%d", i + ];

        imageView.image = [UIImage imageNamed:name];

        [scrollView addSubview:imageView];

        // 如果是最后一个imageView，就往里面添加其他内容

        if (i == HWNewfeatureCount - ) {

            [self setupLastImageView:imageView];

        }

    }

#warning 默认情况下，scrollView一创建出来，它里面可能就存在一些子控件了

#warning 就算不主动添加子控件到scrollView中，scrollView内部还是可能会有一些子控件

    // 3.设置scrollView的其他属性

    // 如果想要某个方向上不能滚动，那么这个方向对应的尺寸数值传0即可

    scrollView.contentSize = CGSizeMake(HWNewfeatureCount * scrollW, );

    scrollView.bounces = NO; // 去除弹簧效果

    scrollView.pagingEnabled = YES;

    scrollView.showsHorizontalScrollIndicator = NO;

    scrollView.delegate = self;

    // 4.添加pageControl：分页，展示目前看的是第几页

    UIPageControl *pageControl = [[UIPageControl alloc] init];

    pageControl.numberOfPages = HWNewfeatureCount;

    pageControl.backgroundColor = [UIColor redColor];

    pageControl.currentPageIndicatorTintColor = HWColor(, , );

    pageControl.pageIndicatorTintColor = HWColor(, , );

    pageControl.centerX = scrollW * 0.5;

    pageControl.centerY = scrollH - ;

    [self.view addSubview:pageControl];

    self.pageControl = pageControl;

    // UIPageControl就算没有设置尺寸，里面的内容还是照常显示的

    //    pageControl.width = 100;

    //    pageControl.height = 50;

    //    pageControl.userInteractionEnabled = NO;

//    UITextField *text = [[UITextField alloc] init];

//    text.frame = CGRectMake(10, 20, 100, 50);

//    text.borderStyle = UITextBorderStyleRoundedRect;

//    [self.view addSubview:text];

}

- (void)scrollViewDidScroll:(UIScrollView *)scrollView

{

    double page = scrollView.contentOffset.x / scrollView.width;

    // 四舍五入计算出页码

    self.pageControl.currentPage = (int)(page + 0.5);

    // 1.3四舍五入 1.3 + 0.5 = 1.8 强转为整数(int)1.8= 1

    // 1.5四舍五入 1.5 + 0.5 = 2.0 强转为整数(int)2.0= 2

    // 1.6四舍五入 1.6 + 0.5 = 2.1 强转为整数(int)2.1= 2

    // 0.7四舍五入 0.7 + 0.5 = 1.2 强转为整数(int)1.2= 1

}

/**

 *  初始化最后一个imageView

 *

 *  @param imageView 最后一个imageView

 */

- (void)setupLastImageView:(UIImageView *)imageView

{

    // 开启交互功能

    imageView.userInteractionEnabled = YES;

    // 1.分享给大家（checkbox）

    UIButton *shareBtn = [[UIButton alloc] init];

    [shareBtn setImage:[UIImage imageNamed:@"new_feature_share_false"] forState:UIControlStateNormal];

    [shareBtn setImage:[UIImage imageNamed:@"new_feature_share_true"] forState:UIControlStateSelected];

    [shareBtn setTitle:@"分享给大家" forState:UIControlStateNormal];

    [shareBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];

    shareBtn.titleLabel.font = [UIFont systemFontOfSize:];

    shareBtn.width = ;

    shareBtn.height = ;

    shareBtn.centerX = imageView.width * 0.5;

    shareBtn.centerY = imageView.height * 0.65;

    [shareBtn addTarget:self action:@selector(shareClick:) forControlEvents:UIControlEventTouchUpInside];

    [imageView addSubview:shareBtn];

//    shareBtn.backgroundColor = [UIColor redColor];

//    shareBtn.imageView.backgroundColor = [UIColor blueColor];

//    shareBtn.titleLabel.backgroundColor = [UIColor yellowColor];

    // top left bottom right

    // EdgeInsets: 自切

    // contentEdgeInsets:会影响按钮内部的所有内容（里面的imageView和titleLabel）

    //    shareBtn.contentEdgeInsets = UIEdgeInsetsMake(10, 100, 0, 0);

    // titleEdgeInsets:只影响按钮内部的titleLabel

    shareBtn.titleEdgeInsets = UIEdgeInsetsMake(, , , );

    // imageEdgeInsets:只影响按钮内部的imageView

//    shareBtn.imageEdgeInsets = UIEdgeInsetsMake(20, 0, 0, 50);

//    shareBtn.titleEdgeInsets

//    shareBtn.imageEdgeInsets

//    shareBtn.contentEdgeInsets

    // 2.开始微博

    UIButton *startBtn = [[UIButton alloc] init];

    [startBtn setBackgroundImage:[UIImage imageNamed:@"new_feature_finish_button"] forState:UIControlStateNormal];

    [startBtn setBackgroundImage:[UIImage imageNamed:@"new_feature_finish_button_highlighted"] forState:UIControlStateHighlighted];

    startBtn.size = startBtn.currentBackgroundImage.size;

    startBtn.centerX = shareBtn.centerX;

    startBtn.centerY = imageView.height * 0.75;

    [startBtn setTitle:@"开始微博" forState:UIControlStateNormal];

    [startBtn addTarget:self action:@selector(startClick) forControlEvents:UIControlEventTouchUpInside];

    [imageView addSubview:startBtn];

}

- (void)shareClick:(UIButton *)shareBtn

{

    // 状态取反

    shareBtn.selected = !shareBtn.isSelected;

}

- (void)startClick

{

    // 切换到HWTabBarController

    /*

     切换控制器的手段

     1.push：依赖于UINavigationController，控制器的切换是可逆的，比如A切换到B，B又可以回到A

     2.modal：控制器的切换是可逆的，比如A切换到B，B又可以回到A

     3.切换window的rootViewController

     */

    UIWindow *window = [UIApplication sharedApplication].keyWindow;

    window.rootViewController = [[HWTabBarViewController alloc] init];

    // modal方式，不建议采取：新特性控制器不会销毁

//    HWTabBarViewController *main = [[HWTabBarViewController alloc] init];

//    [self presentViewController:main animated:YES completion:nil];

}

- (void)dealloc

{

    HWLog(@"HWNewfeatureViewController-dealloc");

}

/*

 1.程序启动会自动加载叫做Default的图片

 1> 3.5inch 非retain屏幕：Default.png

 2> 3.5inch retina屏幕：Default@2x.png

 3> 4.0inch retain屏幕: Default-568h@2x.png

 2.只有程序启动时自动去加载的图片, 才会自动在4inch retina时查找-568h@2x.png

 */

/*

 一个控件用肉眼看不见，有哪些可能

 1.根本没有创建实例化这个控件

 2.没有设置尺寸

 3.控件的颜色跟父控件的背景色一样（实际上已经显示了，只不过用肉眼看不见）

 4.透明度alpha <= 0.01

 5.hidden = YES

 6.没有添加到父控件中

 7.被其他控件挡住了

 8.位置不对

 9.父控件发生了以上情况

 10.特殊情况

 * UIImageView没有设置image属性，或者设置的图片名不对

 * UILabel没有设置文字，或者文字颜色和跟父控件的背景色一样

 * UITextField没有设置文字，或者没有设置边框样式borderStyle

 * UIPageControl没有设置总页数，不会显示小圆点

 * UIButton内部imageView和titleLabel的frame被篡改了，或者imageView和titleLabel没有内容

 * .....

 添加一个控件的建议（调试技巧）：

 1.最好设置背景色和尺寸

 2.控件的颜色尽量不要跟父控件的背景色一样

 */

@end

#import <UIKit/UIKit.h>

@interface HWNewfeatureViewController : UIViewController

@end

#import "HWOAuthViewController.h"

#import "AFNetworking.h"

@interface HWOAuthViewController () <UIWebViewDelegate>

@end

@implementation HWOAuthViewController

- (void)viewDidLoad

{

    [super viewDidLoad];

    // 1.创建一个webView

    UIWebView *webView = [[UIWebView alloc] init];

    webView.frame = self.view.bounds;

    webView.delegate = self;

    [self.view addSubview:webView];

    // 2.用webView加载登录页面（新浪提供的）

    // 请求地址：https://api.weibo.com/oauth2/authorize

    /* 请求参数：

     client_id    true    string    申请应用时分配的AppKey。

     redirect_uri    true    string    授权回调地址，站外应用需与设置的回调地址一致，站内应用需填写canvas page的地址。

    */

    NSURL *url = [NSURL URLWithString:@"https://api.weibo.com/oauth2/authorize?client_id=3235932662&redirect_uri=http://"];

    NSURLRequest *request = [NSURLRequest requestWithURL:url];

    [webView loadRequest:request];

}

#pragma mark - webView代理方法

- (void)webViewDidFinishLoad:(UIWebView *)webView

{

//    HWLog(@"----webViewDidFinishLoad");

}

- (void)webViewDidStartLoad:(UIWebView *)webView

{

//    HWLog(@"----webViewDidStartLoad");

}

- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType

{

    // 1.获得url

    NSString *url = request.URL.absoluteString;

    // 2.判断是否为回调地址

    NSRange range = [url rangeOfString:@"code="];

    if (range.length != ) { // 是回调地址

        // 截取code=后面的参数值

        int fromIndex = range.location + range.length;

        NSString *code = [url substringFromIndex:fromIndex];

        // 利用code换取一个accessToken

        [self accessTokenWithCode:code];

    }

    return YES;

}

/**

 *  利用code（授权成功后的request token）换取一个accessToken

 *

 *  @param code 授权成功后的request token

 */

- (void)accessTokenWithCode:(NSString *)code

{

/*

 URL：https://api.weibo.com/oauth2/access_token

 请求参数：

 client_id：申请应用时分配的AppKey

 client_secret：申请应用时分配的AppSecret

 grant_type：使用authorization_code

 redirect_uri：授权成功后的回调地址

 code：授权成功后返回的code

 */

    // 1.请求管理者

    AFHTTPRequestOperationManager *mgr = [AFHTTPRequestOperationManager manager];

//    mgr.responseSerializer = [AFJSONResponseSerializer serializer];

    // AFN的AFJSONResponseSerializer默认不接受text/plain这种类型

    // 2.拼接请求参数

    NSMutableDictionary *params = [NSMutableDictionary dictionary];

    params[@"client_id"] = @"";

    params[@"client_secret"] = @"227141af66d895d0dd8baca62f73b700";

    params[@"grant_type"] = @"authorization_code";

    params[@"redirect_uri"] = @"http://";

    params[@"code"] = code;

    // 3.发送请求

    [mgr POST:@"https://api.weibo.com/oauth2/access_token" parameters:params success:^(AFHTTPRequestOperation *operation, id responseObject) {

        HWLog(@"请求成功-%@", responseObject);

    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {

        HWLog(@"请求失败-%@", error);

    }];

}

@end

#import <UIKit/UIKit.h>

@interface HWOAuthViewController : UIViewController

@end