山寨QQ音乐的布局（二）终于把IOS6的UITableView拍扁了

2019-11-14 20:28:26

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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：

IOS6中的登陆界面 IOS7中的登陆界面

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     else109     {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 *)indexPath135 {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 *)indexPath141 {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)section148 {149     return 0.1;150 }151 152 - (void)login:(UIButton *)sender153 {154     LoginViewController *loginView = [[LoginViewController alloc] init];155     [self presentViewController:loginView animated:YES completion:^{156         157     }];158 }159 160 - (void)didReceiveMemoryWarning161 {162     [super didReceiveMemoryWarning];163     // Dispose of any resources that can be recreated.164 }165 166 167 168 /*169 #pragma mark - Navigation170 171 // In a storyboard-based application, you will often want to do a little preparation before navigation172 - (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender173 {174     // Get the new view controller using [segue destinationViewController].175     // Pass the selected object to the new view controller.176 }177 */178 179 @end