Controller:
1 //
2 // ViewController.m
3 // Weibo
4 //
5 // Created by hellovoidworld on 14/12/4.
6 // Copyright (c) 2014年 hellovoidworld. All rights reserved.
7 //
8
9 #import "ViewController.h"
10 #import "Weibo.h"
11 #import "WeiboCell.h"
12 #import "WeiboFrame.h"
13
14 @interface ViewController ()
15
16 /** 微博数组，类型是WeiboFrame，包含了数据和位置尺寸信息 */
17 @property(nonatomic, strong) NSArray *weibos;
18
19 @end
20
21 @implementation ViewController
22
23 - (void)viewDidLoad {
24 [super viewDidLoad];
25 // Do any additional setup after loading the view, typically from a nib.
26 }
27
28 - (void)didReceiveMemoryWarning {
29 [super didReceiveMemoryWarning];
30 // Dispose of any resources that can be recreated.
31 }
32
33 // 屏蔽状态栏
34 - (BOOL)prefersStatusBarHidden {
35 return YES;
36 }
37
38 #pragma mark - 数据源操作
39 - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
40 return self.weibos.count;
41 }
42
43 - (UITableViewCell *) tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
44 // 传入tableView是为了使用cell缓存池
45 WeiboCell *cell = [WeiboCell cellWithTableView:self.tableView];
46
47 // 传入微博的数据和位置尺寸信息
48 cell.weiboFrame = self.weibos[indexPath.row];
49
50 return cell;
51 }
52
53
54 #pragma mark - 加载数据
55 // 延迟加载plist文件中的数据为微博数组
56 - (NSArray *) weibos {
57 if (nil == _weibos) {
58 NSArray *dictArray = [NSArray arrayWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"weibo.plist" ofType:nil]];
59
60 NSMutableArray *mdictArray = [NSMutableArray array];
61 for (NSDictionary *dict in dictArray) {
62 WeiboFrame *weiboFrame = [[WeiboFrame alloc] init];
63 Weibo *weibo = [Weibo weiboWithDictionary:dict];
64
65 // 传入weibo模型数据到frame模型，内部保存数据，计算各个控件的位置、尺寸
66 weiboFrame.weibo = weibo;
67
68 [mdictArray addObject:weiboFrame];
69 }
70
71 _weibos = mdictArray;
72 }
73
74 return _weibos;
75 }
76
77
78 #pragma mark - 代理操作
79 // 动态调整每个cell的高度
80 - (CGFloat) tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
81 WeiboFrame *weiboFrame = self.weibos[indexPath.row];
82 return weiboFrame.cellHeight;
83 }
84
85 @end
View:
1 // 2 // WeiboCell.h 3 // Weibo 4 // 5 // Created by hellovoidworld on 14/12/5. 6 // Copyright (c) 2014年 hellovoidworld. All rights reserved. 7 // 8 9 // 用于装载每个TabelViewCell的model 10 #import <UIKit/UIKit.h> 11 12 @class WeiboFrame; 13 @interface WeiboCell : UITableViewCell 14 15 // 微博frame，内持有微博数据和尺寸、位置信息 16 @property(nonatomic, strong) WeiboFrame *weiboFrame; 17 18 19 // 自定义带有父控件tableView初始化方法 20 + (instancetype) cellWithTableView:(UITableView *) tableView; 21 22 @end
1 //
2 // WeiboCell.m
3 // Weibo
4 //
5 // Created by hellovoidworld on 14/12/5.
6 // Copyright (c) 2014年 hellovoidworld. All rights reserved.
7 //
8
9 #import "WeiboCell.h"
10 #import "WeiboFrame.h"
11 #import "Weibo.h"
12
13 // 昵称字体
14 #define NAME_FONT [UIFont systemFontOfSize:14]
15 // 博文字体
16 #define TEXT_FONT [UIFont systemFontOfSize:15]
17
18
19 @interface WeiboCell()
20
21 // 创建各个子控件的成员，用来分离数据赋值和尺寸、位置调整
22 /** 头像 */
23 @property(nonatomic, weak) UIImageView *iconView;
24
25 /** 昵称 */
26 @property(nonatomic, weak) UILabel *nameView;
27
28 /** vip标志 */
29 @property(nonatomic, weak) UIImageView *vipView;
30
31 /** 博文 */
32 @property(nonatomic, weak) UILabel *textView;
33
34 /** 配图 */
35 @property(nonatomic, weak) UIImageView *pictureView;
36
37 @end
38
39 @implementation WeiboCell
40
41 - (void)awakeFromNib {
42 // Initialization code
43 }
44
45 - (void)setSelected:(BOOL)selected animated:(BOOL)animated {
46 [super setSelected:selected animated:animated];
47
48 // Configure the view for the selected state
49 }
50
51 #pragma mark - 初始化
52 // 自定义带有父控件tableView初始化方法
53 + (instancetype) cellWithTableView:(UITableView *) tableView {
54 static NSString *ID = @"weibo";
55
56 // 从缓存池寻找
57 WeiboCell *cell = [tableView dequeueReusableCellWithIdentifier:ID];
58
59 // 使用重写的构造方法初始化
60 if (nil == cell) {
61 cell = [[WeiboCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:ID];
62 }
63
64 return cell;
65 }
66
67 // 重写缓存池初始化方法，加入各个子控件，可以设置静态数据，但是没有动态的数据和位置尺寸信息
68 - (instancetype)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier {
69 if (self = [super initWithStyle:style reuseIdentifier:reuseIdentifier]) {
70 // 1.头像
71 /**
72 由于self.iconView是weak类型,不能写成:
73 self.iconView = [[UIImageView alloc] init];
74 会被立即释放，不能正常赋值，下同
75 */
76 UIImageView *iconView = [[UIImageView alloc] init];
77 [self addSubview:iconView];
78 self.iconView = iconView;
79
80 // 2.昵称
81 UILabel *nameView = [[UILabel alloc] init];
82 // 指定字体用来计算占用的尺寸大小
83 nameView.font = NAME_FONT;
84 [self addSubview:nameView];
85 self.nameView = nameView;
86
87 // 3.vip标志
88 UIImageView *vipView = [[UIImageView alloc] init];
89 vipView.image = [UIImage imageNamed:@"vip"];
90 [self addSubview:vipView];
91 self.vipView = vipView;
92
93 // 4.博文
94 UILabel *textView = [[UILabel alloc] init];
95 textView.font = TEXT_FONT;
96 textView.numberOfLines = 0;// 设置自动换行
97 [self addSubview:textView];
98 self.textView = textView;
99
100 // 5.配图
101 UIImageView *pictureView = [[UIImageView alloc] init];
102 [self addSubview:pictureView];
103 self.pictureView = pictureView;
104 }
105
106 return self;
107 }
108
109 #pragma mark - 数据加载
110 // 加载数据的时候设置数据和尺寸、位置
111 - (void)setWeiboFrame:(WeiboFrame *)weiboFrame {
112 _weiboFrame = weiboFrame;
113
114 // 1.设置数据
115 [self calWeiboData];
116
117 // 2.设置尺寸、位置
118 [self calWeiboFrame];
119 }
120
121 // 设置数据
122 - (void) calWeiboData {
123 Weibo *weibo = self.weiboFrame.weibo;
124
125 // 1.头像
126 self.iconView.image = [UIImage imageNamed:weibo.icon];
127
128 // 2.昵称
129 self.nameView.text = weibo.name;
130
131 // 3.vip标志
132 if (weibo.vip) {
133 self.vipView.hidden = NO;
134 }
135 else {
136 self.vipView.hidden = YES;
137 }
138
139 // 4.博文
140 self.textView.text = weibo.text;
141
142
143 // 5.配图
144 if (weibo.picture) {
145 self.pictureView.hidden = NO;
146 self.pictureView.image = [UIImage imageNamed:weibo.picture];
147 }
148 else {
149 self.pictureView.hidden = YES;
150 self.pictureView.image = nil;
151 }
152 }
153
154 // 设置位置、尺寸
155 - (void) calWeiboFrame {
156 // 1.头像
157 self.iconView.frame = self.weiboFrame.iconFrame;
158
159 // 2.昵称
160 self.nameView.frame = self.weiboFrame.nameFrame;
161
162 // 3.vip标志
163 self.vipView.frame = self.weiboFrame.vipFrame;
164
165 // 4.博文
166 self.textView.frame = self.weiboFrame.textFrame;
167
168 // 5.配图
169 if (self.weiboFrame.weibo.picture) {
170 self.pictureView.frame = self.weiboFrame.pictureFrame;
171 }
172 }
173
174
175 @end
Model:
1 // 2 // Weibo.h 3 // Weibo 4 // 5 // Created by hellovoidworld on 14/12/5. 6 // Copyright (c) 2014年 hellovoidworld. All rights reserved. 7 // 8 9 // 装在微博数据的model 10 #import <Foundation/Foundation.h> 11 12 @interface Weibo : NSObject 13 14 #pragma mark - 成员变量 15 /** 头像 */ 16 @property(nonatomic, copy) NSString *icon; 17 18 /** 昵称 */ 19 @property(nonatomic, copy) NSString *name; 20 21 /** vip标志 */ 22 @property(nonatomic, assign) BOOL vip; 23 24 /** 博文 */ 25 @property(nonatomic, copy) NSString *text; 26 27 /** 配图 */ 28 @property(nonatomic, copy) NSString *picture; 29 30 31 #pragma mark - 自定义初始化方法 32 /** 使用字典赋值成员 */ 33 - (instancetype) initWithDictionary:(NSDictionary *) dictionary; 34 35 /** 使用字典赋值成员 */ 36 + (instancetype) weiboWithDictionary:(NSDictionary *) dictionary; 37 38 /** 返回空的model */ 39 + (instancetype) weibo; 40 41 @end
1 //
2 // Weibo.m
3 // Weibo
4 //
5 // Created by hellovoidworld on 14/12/5.
6 // Copyright (c) 2014年 hellovoidworld. All rights reserved.
7 //
8
9 #import "Weibo.h"
10
11 @implementation Weibo
12
13 /** 使用字典赋值成员 */
14 - (instancetype) initWithDictionary:(NSDictionary *) dictionary {
15 if (self = [super init]) {
16 [self setValuesForKeysWithDictionary:dictionary];
17 }
18
19 return self;
20 }
21
22 /** 使用字典赋值成员 */
23 + (instancetype) weiboWithDictionary:(NSDictionary *) dictionary {
24 return [[self alloc] initWithDictionary:dictionary];
25 }
26
27 /** 返回空的model */
28 + (instancetype) weibo {
29 return [self weiboWithDictionary:nil];
30 }
31
32 @end
1 // 2 // WeiboFrame.h 3 // Weibo 4 // 5 // Created by hellovoidworld on 14/12/5. 6 // Copyright (c) 2014年 hellovoidworld. All rights reserved. 7 // 8 9 // 装在了每个cell的位置、尺寸和微博数据的model 10 11 @class Weibo; 12 #import <Foundation/Foundation.h> 13 #import <UIKit/UIKit.h> // CGRect需要引入UIKit 14 15 @interface WeiboFrame : NSObject 16 17 // 微博数据 18 @property(nonatomic, strong) Weibo *weibo; 19 20 /** 头像 */ 21 @property(nonatomic, assign, readonly) CGRect iconFrame; 22 23 /** 昵称 */ 24 @property(nonatomic, assign, readonly) CGRect nameFrame; 25 26 /** vip标志 */ 27 @property(nonatomic, assign, readonly) CGRect vipFrame; 28 29 /** 博文 */ 30 @property(nonatomic, assign, readonly) CGRect textFrame; 31 32 /** 配图 */ 33 @property(nonatomic, assign, readonly) CGRect pictureFrame; 34 35 /** 一条微博cell的高度 */ 36 @property(nonatomic, assign, readonly) CGFloat cellHeight; 37 38 39 @end
1 //
2 // WeiboFrame.m
3 // Weibo
4 //
5 // Created by hellovoidworld on 14/12/5.
6 // Copyright (c) 2014年 hellovoidworld. All rights reserved.
7 //
8
9 #import "WeiboFrame.h"
10 #import "Weibo.h"
11
12 // 昵称字体
13 #define NAME_FONT [UIFont systemFontOfSize:14]
14 // 博文字体
15 #define TEXT_FONT [UIFont systemFontOfSize:15]
16
17 @implementation WeiboFrame
18
19 #pragma mark - 加载数据
20 // 加载数据，用以计算各个控件的位置、尺寸
21 - (void)setWeibo:(Weibo *)weibo {
22 _weibo = weibo;
23
24 // 间隙参数
25 CGFloat padding = 10;
26
27 // 1.头像
28 CGFloat iconWidth = 30;
29 CGFloat iconHeight = 30;
30 CGFloat iconX = padding;
31 CGFloat iconY = padding;
32 _iconFrame = CGRectMake(iconX, iconY, iconWidth, iconHeight);
33
34 // 2.昵称
35 // 计算昵称占用的size
36 CGSize nameSize = [self calTextSizeWithText:self.weibo.name font:TEXT_FONT maxSize:CGSizeMake(MAXFLOAT, MAXFLOAT)];
37
38 CGFloat nameX = CGRectGetMaxX(_iconFrame) + padding;
39 CGFloat nameY = iconY + (iconHeight - nameSize.height) / 2;// 居中
40 _nameFrame.size = nameSize;
41 _nameFrame.origin = CGPointMake(nameX, nameY);
42
43 // 3.vip标志
44 CGFloat vipWith = 14;
45 CGFloat vipHeight = 14;
46 CGFloat vipX = CGRectGetMaxX(_nameFrame) + padding;
47 CGFloat vipY = nameY;
48 _vipFrame = CGRectMake(vipX, vipY, vipWith, vipHeight);
49
50 // 4.博文
51 CGSize textSize = [self calTextSizeWithText:self.weibo.text font:TEXT_FONT maxSize:CGSizeMake(300, MAXFLOAT)];
52 CGFloat textX = padding;
53 CGFloat textY = CGRectGetMaxY(_iconFrame) + padding;
54 _textFrame = CGRectMake(textX, textY, textSize.width, textSize.height);
55
56 // 5.配图
57 if (self.weibo.picture) {
58 CGFloat pictureWidth = 100;
59 CGFloat pictureHeight = 100;
60 CGFloat pictureX = padding;
61 CGFloat pictureY = CGRectGetMaxY(_textFrame) + padding;
62 _pictureFrame = CGRectMake(pictureX, pictureY, pictureWidth, pictureHeight);
63
64 _cellHeight = CGRectGetMaxY(_pictureFrame) + padding; //计算cell高度
65 }
66 else {
67 _cellHeight = CGRectGetMaxY(_textFrame) + padding;
68 }
69 }
70
71 // 使用自带方法计算一段文字占用的size
72 - (CGSize) calTextSizeWithText:(NSString *) text font:(UIFont *) font maxSize:(CGSize) maxSize {
73 NSDictionary *attrs = @{NSFontAttributeName : font};
74
75 return [text boundingRectWithSize:maxSize options:NSStringDrawingUsesLineFragmentOrigin attributes:attrs context:nil].size;
76 }
77
78 @end
79
weibo.plist:
images:
时间： 2024-08-06 06:35:23