IOS应用开发中UITableView的应用十分广泛，但是IOS7神一样的把UITableView拍扁了，这样一来IOS6的UITableView不干了，就吵着也要被拍扁，那好吧我今天就成全了你。。。
继上回书说道初步实现了一个QQ音乐的框架，但这远远不够，我是一个追求细节的人（就像锤子科技的老罗一样），怎么可能就这就结束了呢，下一步实现以下登陆的ModalView，比较简单没啥可说的直接上代码：
1 UIColor *normalColor = [UIColor colorWithRed:28/255.0 green:191/255.0 blue:97/255.0 alpha:1]; //按钮默认状态的绿色 2 UIColor *selectedColor = [UIColor colorWithRed:185/255.0 green:227/255.0 blue:214/255.0 alpha:1]; //按钮点击状态的淡绿色 3 CGFloat navigationY = 0; 4 if (IOS_7) { 5 navigationY = 20; 6 } 7 8 9 UINavigationBar *loginNavigationBar = [[UINavigationBar alloc] initWithFrame:CGRectMake(0, navigationY, 320, 44)]; //UINavigationBar的位置 10 UIButton *cancelButton = [UIButton buttonWithType:UIButtonTypeSystem]; 11 [cancelButton setFrame:CGRectMake(0, 0, 40, 40)]; 12 [cancelButton setTitle:@"取消" forState:UIControlStateNormal]; 13 [cancelButton setTitleColor:normalColor forState:UIControlStateNormal]; 14 [[cancelButton titleLabel] setFont:[UIFont systemFontOfSize:18]]; 15 [cancelButton setTitleColor:selectedColor forState:UIControlStateHighlighted]; 16 [cancelButton addTarget:self action:@selector(dismissView) forControlEvents:UIControlEventTouchUpInside]; 17 UIBarButtonItem *cancelItem = [[UIBarButtonItem alloc] initWithCustomView:cancelButton]; //初始化取消按钮 18 19 20 UIButton *loginButton = [UIButton buttonWithType:UIButtonTypeSystem]; 21 [loginButton setFrame:CGRectMake(0, 0, 40, 40)]; 22 [loginButton setTitle:@"登陆" forState:UIControlStateNormal]; 23 [loginButton setTitleColor:normalColor forState:UIControlStateNormal]; 24 [[loginButton titleLabel] setFont:[UIFont systemFontOfSize:18]]; 25 [loginButton setTitleColor:selectedColor forState:UIControlStateHighlighted]; 26 [loginButton addTarget:self action:@selector(loginAction) forControlEvents:UIControlEventTouchUpInside]; 27 UIBarButtonItem *loginItem = [[UIBarButtonItem alloc] initWithCustomView:loginButton]; //初始化登陆按钮 28 29 UIImage *image = [UIImage imageNamed:@"input_login_line"]; 30 31 UIImageView *userLineView = [[UIImageView alloc] initWithImage:image]; 32 UIImageView *passwordLineView = [[UIImageView alloc] initWithImage:image]; //输入框下面的绿线 33 34 UITextField *userTextField = [[UITextField alloc] initWithFrame:CGRectMake(30, 100+navigationY, 260, 30)]; 35 [userTextField setPlaceholder:@"QQ号/手机/邮箱"]; 36 [userTextField setClearButtonMode:UITextFieldViewModeWhileEditing]; 37 [userTextField setKeyboardType:UIKeyboardTypeNumbersAndPunctuation]; 38 [userTextField setReturnKeyType:UIReturnKeyNext]; 39 [userLineView setFrame:CGRectMake(30, 131+navigationY, 260, 1)]; 40 41 UITextField *passwordTextField = [[UITextField alloc] initWithFrame:CGRectMake(30, 140+navigationY, 260, 30)]; 42 [passwordTextField setPlaceholder:@"密码"]; 43 [passwordTextField setClearButtonMode:UITextFieldViewModeWhileEditing]; 44 [passwordTextField setKeyboardType:UIKeyboardTypeASCIICapable]; 45 [passwordTextField setReturnKeyType:UIReturnKeyDone]; 46 [passwordLineView setFrame:CGRectMake(30, 171+navigationY, 260, 1)]; 47 48 UILabel *regStr = [[UILabel alloc] initWithFrame:CGRectMake(75, 180+navigationY, 110, 30)]; 49 [regStr setText:@"没有账号？点击这里"]; 50 [regStr setFont:[UIFont systemFontOfSize:12]]; 51 [regStr setTextColor:[UIColor darkGrayColor]]; 52 UILabel *greenStr = [[UILabel alloc] initWithFrame:CGRectMake(184, 180+navigationY, 60, 30)]; 53 [greenStr setText:@"快速注册"]; 54 [greenStr setFont:[UIFont systemFontOfSize:12]]; 55 [greenStr setTextColor:normalColor]; 56 57 UINavigationItem *navigationItem = [[UINavigationItem alloc] initWithTitle:@"登陆"]; 58 [navigationItem setLeftBarButtonItem:cancelItem]; 59 [navigationItem setRightBarButtonItem:loginItem]; 60 [loginNavigationBar pushNavigationItem:navigationItem animated:YES]; 61 62 63 64 [self.view addSubview:loginNavigationBar]; 65 [self.view addSubview:userTextField]; 66 [self.view addSubview:userLineView]; 67 [self.view addSubview:passwordTextField]; 68 [self.view addSubview:passwordLineView]; 69 [self.view addSubview:regStr]; 70 [self.view addSubview:greenStr];
总结起来就是一个UINavigationBar，UINavigationBar上面有两个按钮，两个UITextField。只得说的事这个按钮，IOS7中把按钮的衣服扒掉了，这就直接导致我也要让IOS6的按钮也裸奔：
1 [[UINavigationBar appearance] setBackgroundImage:[UIImage imageWithColor:[UIColor whiteColor] size:CGSizeMake(1, 44)] forBarMetrics:UIBarMetricsDefault];
好了然后就没什么特别的了改改UITextField关联的键盘字体大小颜色什么的，效果图如下：
下面就是硬菜了，QQ音乐的界面UITableView采用的是UITableViewStyleGrouped类型的，但是在IOS6下UITableView有一个讨厌的灰不拉几的背景，我要把背景变为白色，使用如下代码：
1 [tableView setBackgroundColor:[UIColor whiteColor]]; 2 [tableView setBackgroundView:nil];
这样UITableView在IOS6中那讨厌的背景就没有了，但是UITableViewCell默认是圆角的很恶心，干掉：
1 UIView *tempView = [[UIView alloc] init]; 2 [cell setBackgroundView:tempView];
还要去掉cell点击时的圆角：
1 cell.selectedBackgroundView = [[UIView alloc] initWithFrame:cell.frame]; 2 cell.selectedBackgroundView.backgroundColor = [UIColor lightGrayColor];
这里可以不用设置颜色的，而且现在这个颜色挺难看的，我还要继续修改
还有个问题IOS6的UITableViewCell默认不是与屏幕同宽的，需要自定义一个UItableViewCell复写 layoutSubviews 方法，代码如下：
1 - (void) layoutSubviews { 2 [super layoutSubviews]; 3 self.backgroundView.frame = CGRectMake(0, 0, 320, 44); 4 self.selectedBackgroundView.frame = CGRectMake(0, 0, 320, 44); 5 }
好了这样初步的适配完了，当然还有细节没有做到，继续学习吧，下面是我的音乐视图控制器的完整代码:
1 // 2 // MyMusicViewController.m 3 // QQMusic 4 // 5 // Created by 赵 福成 on 14-5-21. 6 // Copyright (c) 2014年 ZhaoFucheng. All rights reserved. 7 // 8 9 #import "MyMusicViewController.h" 10 #import "UIImage+CustomPureColor.h" 11 #import "UIButton+CustomButton.h" 12 #import "LoginViewController.h" 13 #import "CustomTableViewCell.h" 14 #define IOS_7 ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7.0) 15 @interface MyMusicViewController () 16 17 @end 18 19 @implementation MyMusicViewController 20 21 NSArray *mainScreenCells; 22 NSArray *details; 23 NSArray *icon; 24 NSArray *iconSelected; 25 26 - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil 27 { 28 self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; 29 if (self) { 30 // Custom initialization 31 32 self.title = @"我的音乐"; 33 } 34 return self; 35 } 36 37 - (void)viewDidLoad 38 { 39 [super viewDidLoad]; 40 // Do any additional setup after loading the view. 41 42 43 //我的音乐按钮 44 UIButton *myMusicButton = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 35, 35)]; 45 [myMusicButton setImage:[UIImage imageNamed:@"defaultSinger"] forState:UIControlStateNormal]; 46 [myMusicButton setImage:[UIImage imageNamed:@"defaultSinger"] forState:UIControlStateHighlighted]; 47 // myMusicButton.userInteractionEnabled = NO; 48 myMusicButton.titleLabel.textAlignment = NSTextAlignmentLeft; 49 [myMusicButton addTarget:self action:@selector(login:) forControlEvents:UIControlEventTouchUpInside]; 50 UIBarButtonItem *myMusicButtonItem = [[UIBarButtonItem alloc] initWithCustomView:myMusicButton]; 51 52 //播放界面按钮 53 UIBarButtonItem *nowPlayingButtonItem = [[UIBarButtonItem alloc] initWithCustomView:[UIButton initNowPlayingButton]]; 54 [self.navigationItem setLeftBarButtonItem:myMusicButtonItem]; 55 [self.navigationItem setRightBarButtonItem:nowPlayingButtonItem]; 56 57 mainScreenCells = [NSArray arrayWithObjects:[NSArray arrayWithObjects:@"全部歌曲", nil],[NSArray arrayWithObjects:@"我喜欢", @"全部歌单", nil],[NSArray arrayWithObjects:@"下载歌曲", @"最近播放", @"iPod歌曲", nil], nil]; 58 59 details = [NSArray arrayWithObjects:[NSArray arrayWithObjects:@"0首在本地", nil], [NSArray arrayWithObjects:@"", @"", nil],[NSArray arrayWithObjects:@"0首", @"18首", @"0首", nil], nil]; 60 61 icon = [NSArray arrayWithObjects:[NSArray arrayWithObjects:@"allsongs", nil], [NSArray arrayWithObjects:@"cell_like_in_my_music", @"", nil],[NSArray arrayWithObjects:@"down", @"recent_listen_icon", @"ipod", nil], nil]; 62 63 iconSelected = [NSArray arrayWithObjects:[NSArray arrayWithObjects:@"allsongsSelected", nil], [NSArray arrayWithObjects:@"cell_like_in_my_music_pressed", @"", nil],[NSArray arrayWithObjects:@"downSelected", @"recent_listen_icon_h", @"ipodSelected", nil], nil]; 64 65 UITableView *tableView = [[UITableView alloc] initWithFrame:[[UIScreen mainScreen] bounds] style:UITableViewStyleGrouped]; 66 [tableView setDataSource:self]; 67 if (!IOS_7) { 68 [tableView setSeparatorStyle:UITableViewCellSeparatorStyleNone]; 69 } 70 [tableView setBackgroundColor:[UIColor whiteColor]]; 71 [tableView setBackgroundView:nil]; 72 [tableView setDelegate:self]; 73 [self.view addSubview:tableView]; 74 75 } 76 77 - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView 78 { 79 return mainScreenCells.count; 80 } 81 82 - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section 83 { 84 return [[mainScreenCells objectAtIndex:section] count]; 85 } 86 87 - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 88 { 89 static NSString *cellId = @"cellId"; 90 UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellId]; 91 if (cell == nil) { 92 cell = [[CustomTableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:cellId]; 93 } 94 NSUInteger rowNo = indexPath.row; 95 NSUInteger colNo = indexPath.section; 96 cell.textLabel.text = [[mainScreenCells objectAtIndex:colNo] objectAtIndex:rowNo]; 97 if (!IOS_7) { 98 UIView *line = [[UIView alloc] initWithFrame:CGRectMake(cell.frame.origin.x + 50, cell.frame.size.height, cell.frame.size.width - 20, 0.5)]; 99 line.backgroundColor = [UIColor lightGrayColor]; 100 [cell.contentView addSubview:line]; 101 } 102 NSString *iconStr = (NSString *)[[icon objectAtIndex:colNo] objectAtIndex:rowNo]; 103 NSString *iconSelectStr = (NSString *)[[iconSelected objectAtIndex:colNo] objectAtIndex:rowNo]; 104 if (iconStr.length == 0 && iconSelectStr.length == 0) { 105 cell.imageView.image = [UIImage imageWithColor:[UIColor clearColor] size:CGSizeMake(50, 56)]; 106 cell.imageView.highlightedImage = [UIImage imageWithColor:[UIColor clearColor] size:CGSizeMake(50, 56)]; 107 } 108 else 109 { 110 cell.imageView.image = [UIImage imageNamed:iconStr]; 111 cell.imageView.highlightedImage = [UIImage imageNamed:iconSelectStr]; 112 } 113 114 cell.detailTextLabel.text = [[details objectAtIndex:colNo] objectAtIndex:rowNo]; 115 // [cell setAccessoryType:UITableViewCellAccessoryDisclosureIndicator]; 116 [cell setAccessoryView:[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"arrow"]]]; 117 118 //设置标题和描述背景透明 119 cell.textLabel.backgroundColor = [UIColor clearColor]; 120 cell.detailTextLabel.backgroundColor = [UIColor clearColor]; 121 122 //去掉cell的圆角 123 UIView *tempView = [[UIView alloc] init]; 124 [cell setBackgroundView:tempView]; 125 126 //cell点击时的颜色 127 cell.selectedBackgroundView = [[UIView alloc] initWithFrame:cell.frame]; 128 cell.selectedBackgroundView.backgroundColor = [UIColor lightGrayColor]; 129 130 return cell; 131 } 132 133 134 - (void)tableView:(UITableView *)tableView didHighlightRowAtIndexPath:(NSIndexPath *)indexPath 135 { 136 UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath]; 137 [cell setAccessoryView:[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"arrow_gedan"]]]; 138 } 139 140 - (void)tableView:(UITableView *)tableView didDeselectRowAtIndexPath:(NSIndexPath *)indexPath 141 { 142 UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath]; 143 [cell setAccessoryView:[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"arrow"]]]; 144 145 } 146 147 - (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section 148 { 149 return 0.1; 150 } 151 152 - (void)login:(UIButton *)sender 153 { 154 LoginViewController *loginView = [[LoginViewController alloc] init]; 155 [self presentViewController:loginView animated:YES completion:^{ 156 157 }]; 158 } 159 160 - (void)didReceiveMemoryWarning 161 { 162 [super didReceiveMemoryWarning]; 163 // Dispose of any resources that can be recreated. 164 } 165 166 167 168 /* 169 #pragma mark - Navigation 170 171 // In a storyboard-based application, you will often want to do a little preparation before navigation 172 - (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender 173 { 174 // Get the new view controller using [segue destinationViewController]. 175 // Pass the selected object to the new view controller. 176 } 177 */ 178 179 @end
再来张效果图：
睡觉去了。。。。。。