iOS项目开发之仿网易彩票推荐应用

#import "MainViewController.h"
#import "ProjectModel.h"
#import "ViewController.h"

#define iOS7 ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7.0)

@interface MainViewController ()
{
    NSArray *_projectData;
}
@end

@implementation MainViewController

+ (void)initialize
{
    // 1.取出设置主题的对象
    UINavigationBar *navBar = [UINavigationBar appearance];
    UIBarButtonItem *barItem = [UIBarButtonItem appearance];
    
    // 2.设置导航栏的背景图片
    NSString *navBarBg = nil;
    if (iOS7) { // iOS7
        navBarBg = @"NavBar64";
        
        // 设置导航栏的渐变色为白色（iOS7中返回箭头的颜色变为这个颜色：白色）
        navBar.tintColor = [UIColor whiteColor];
        [[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleLightContent];
    } else { // 非iOS7
        navBarBg = @"NavBar";
        [UIApplication sharedApplication].statusBarStyle = UIStatusBarStyleBlackOpaque;
        
        // 设置导航栏按钮的背景图片
        [barItem setBackgroundImage:[UIImage imageNamed:@"NavButton"] forState:UIControlStateNormal barMetrics:UIBarMetricsDefault];
        [barItem setBackgroundImage:[UIImage imageNamed:@"NavButtonPressed"] forState:UIControlStateHighlighted barMetrics:UIBarMetricsDefault];
        
        // 设置导航栏返回按钮的背景图片
        [barItem setBackButtonBackgroundImage:[UIImage imageNamed:@"NavBackButton"] forState:UIControlStateNormal barMetrics:UIBarMetricsDefault];
        [barItem setBackButtonBackgroundImage:[UIImage imageNamed:@"NavBackButtonPressed"] forState:UIControlStateHighlighted barMetrics:UIBarMetricsDefault];
    }
    
    [navBar setBackgroundImage:[UIImage imageNamed:navBarBg] forBarMetrics:UIBarMetricsDefault];
    
    // 3.设置导航栏标题颜色为白色
    [navBar setTitleTextAttributes:@{
                                     UITextAttributeTextColor : [UIColor whiteColor]
                                     }];
    
    // 4.设置导航栏按钮文字颜色为白色
    [barItem setTitleTextAttributes:@{
                                      UITextAttributeTextColor : [UIColor whiteColor],
                                      UITextAttributeFont : [UIFont systemFontOfSize:13]
                                      } forState:UIControlStateNormal];
    
}

- (void)viewDidLoad {
    [super viewDidLoad];
    
    self.title = @"主页";
    [self addRecommendBtn];
}

- (void)addRecommendBtn
{
    UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom];
    btn.frame = CGRectMake(100, 100, 120, 50);
    [btn setTitle:@"网易推荐应用" forState:UIControlStateNormal];
    [btn setTitleColor:[UIColor redColor] forState:UIControlStateNormal];
    btn.titleLabel.font = [UIFont systemFontOfSize:14.0];
    [btn addTarget:self action:@selector(recommendClick) forControlEvents:UIControlEventTouchUpInside];
    
    [self.view addSubview:btn];
}

- (void)recommendClick
{
    ViewController *viewController = [[ViewController alloc] init];
    viewController.jsonString = @"more_project.json";
    
    [self.navigationController pushViewController:viewController animated:YES];
}

#import "ViewController.h"
#import "ProjectCell.h"
#import "ProjectModel.h"

@interface ViewController ()
{
    NSArray *_projectData;
}
@end

@implementation ViewController

- (void)setJsonString:(NSString *)jsonString
{
    NSString *path = [[NSBundle mainBundle] pathForResource:jsonString ofType:nil];
    NSData *data = [NSData dataWithContentsOfFile:path];
    NSError *error;
    NSArray *array = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:&error];
    
    NSMutableArray *tempArray = [NSMutableArray array];
    for (NSDictionary *dict in array) {
        ProjectModel *p = [ProjectModel ProjectWithDict:dict];
        p.everDownload = [[UIApplication sharedApplication] canOpenURL:[self getUrl:p.customUrl]];
        [tempArray addObject:p];
    }
    _projectData = tempArray;
}

- (NSURL *)getUrl:(NSString *)url
{
    NSString *urlStr = [NSString stringWithFormat:@"%@://", url];
    return [NSURL URLWithString:urlStr];
}

- (void)viewDidLoad {
    [super viewDidLoad];
    
    self.navigationController.navigationBar.translucent = NO;
    
    self.title = @"推荐应用";
    self.tableView.separatorStyle = UITableViewCellSeparatorStyleNone;
    self.tableView.showsVerticalScrollIndicator = NO;
    self.tableView.allowsSelection = NO;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return _projectData.count;
}

- (ProjectCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *cellIdentifier = @"cell";
    ProjectCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
    
    if (cell == nil) {
        cell = [[ProjectCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:cellIdentifier];
    }
    
    cell.project = _projectData[indexPath.row];
    return cell;
}

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
    return 64;
}

@end

#import "ProjectCell.h"

#define kIconW 54
#define kIconH 54

#define kPadding 10

#define kBtnW 40
#define kBtnH 40

@interface ProjectCell()
{
    UIButton *_controlBtn;
    
    BOOL _canOpen;
}
@end

@implementation ProjectCell

- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
{
    if (self = [super initWithStyle:style reuseIdentifier:reuseIdentifier]) {
        UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom];
        btn.center = CGPointMake(self.frame.size.width - kBtnW * 0.5 - kPadding, self.frame.size.height * 0.5 + kPadding);
        btn.bounds = CGRectMake(0, 0, kBtnW, kBtnH);
        [btn addTarget:self action:@selector(btnClick) forControlEvents:UIControlEventTouchUpInside];
        _controlBtn = btn;
        [self.contentView addSubview:btn];
    }
    
    return self;
}

- (void)btnClick
{
    if (_canOpen) {
        [[UIApplication sharedApplication] openURL:[self getUrl:_project.customUrl]];
    } else {
        [[UIApplication sharedApplication] openURL:[self getUrl:_project.url]];
    }
}

- (void)setProject:(ProjectModel *)project
{
    _project = project;
    _canOpen = project.isEverDownload;
    
    self.imageView.image = [UIImage imageNamed:project.icon];
    self.textLabel.text = project.title;
    self.detailTextLabel.text = project.stitle;
    
    if (project.isEverDownload) {
        [_controlBtn setImage:[UIImage imageNamed:@"appadcell_openbutton"] forState:UIControlStateNormal];
    } else {
        [_controlBtn setImage:[UIImage imageNamed:@"appadcell_downloadbutton"] forState:UIControlStateNormal];
    }
}

- (NSURL *)getUrl:(NSString *)url
{
    NSString *urlStr = [NSString stringWithFormat:@"%@://", url];
    return [NSURL URLWithString:urlStr];
}

- (void)layoutSubviews
{
    [super layoutSubviews];
    
    CGFloat cellH = self.frame.size.height;
    self.imageView.frame = CGRectMake(cellH - kIconW, (cellH - kIconH) * 0.5, kIconW, kIconH);
    self.imageView.contentMode = UIViewContentModeScaleAspectFit;
    
    CGRect oldLabelFrame = self.textLabel.frame;
    oldLabelFrame.origin.x = CGRectGetMaxX(self.imageView.frame) + kPadding;
    self.textLabel.frame = oldLabelFrame;
    
    CGRect oldDetailLabelFrame = self.detailTextLabel.frame;
    oldDetailLabelFrame.origin.x = oldLabelFrame.origin.x;
    self.detailTextLabel.frame = oldDetailLabelFrame;
}

@end