yy_model及 YYLabel

一, yy_model

　　1.yy_model 能夠存放包含數組的屬性,調用方法以下:

 1 + (NSDictionary *)modelCustomPropertyMapper {
 2     return @{@"girlid" : @"id",
 3              @"gnumber" : @"info.gnumber",
 4              @"name" : @"info.name",
 5              @"icon" : @"info.icon",
 6              @"des" : @"info.des",
 7              @"arrayGiftData": @"gift"};
 8 }
 9 
10 + (NSDictionary *)modelContainerPropertyGenericClass {
11     return @{@"arrayGiftData" : [GoddessGiftData class]};
12 }
13 - (BOOL)modelCustomTransformFromDictionary:(NSDictionary *)dic {
14     if( !ISDICTIONARY(dic) ) return NO;
15     if (!ISSTRING(_url) || [_url isEqualToString:@""]) return NO;
16     return YES;
17 }

 1 @class Shadow, Border, Attachment;
 2 
 3 @interface Attributes
 4 @property (nonatomic,copy) NSString *name;
 5 @property (nonatomic,strong) NSArray<Shadow*>* shadows; //Array<Shadow>
 6 @property (nonatomic,strong)NSSet *borders; //Set<Border>
 7 @property (nonatomic,strong)NSMutableDictionary *attachments; //Dict<NSString,Attachment>
 8 @end
 9 
10 @implementation Attributes
11 // 返回容器類中的所須要存放的數據類型 (以 Class 或 Class Name 的形式)。
12 + (NSDictionary *)modelContainerPropertyGenericClass {
13     return @{@"shadows" : [Shadow class],
14              @"borders" : Border.class,
15              @"attachments" : @"Attachment" };
16 }
17 @end

 

 

二, YYLabel

　　1.在使用 YYLabel 時,必定要給該對象設置背景顏色,否則沒法顯示.

 1 NSMutableAttributedString *one = [[NSMutableAttributedString alloc] initWithString:@"Shadow"];
 2     one.yy_font = [UIFont boldSystemFontOfSize:30];
 3     one.yy_color = [UIColor whiteColor];
 4 
 5     YYLabel *label = [YYLabel new];
 6     label.attributedText = one;
 7     label.frame = CGRectMake(100, 100, 100, 100);
 8     // 如下語句很重要,不要漏掉
 9     label.backgroundColor = [UIColor colorWithWhite:0.933 alpha:1.000];
10     [self.view addSubview:label];

 

 　　2.在 cell 中使用 YYLabel 時,cell 重用時,其中的 YYLabel 視圖有可能會被清除.....所以須要在複用 cell 或建立 cell 後,判斷 YYLabel 視圖是否存在:若不存在,就建立.

　　3.YYLabel 視圖的 attributedText屬性,和普通 UILabel 的 attributedText 屬性,基本相同,賦值方法均爲_chatMsgLabel.attributedText = attrStr;並且均可以直接使用 NSAttributedString 對象的 appendAttributedString 屬性/ addAttribute 屬性.

　　(PS:使用yy_attachmentStringWithContent:...時,就不要使用 addAttribute 屬性了,)

YYLabel 視圖一個很大的便捷是:使用 

NSMutableAttributedString 對象的拓展 yy_color 和  yy_setColor:range: 屬性,快速設置文字的屬性,代替了複雜的addAttribute 屬性.

　　惟一不一樣的一點就是:YYLabel沒法識別 NSAttributedString 類的 attributedStringWithAttachment 方法添加的圖片.YYLabel 添加圖片須要 NSAttributedString的拓展類方法:yy_attachmentStringWithContent:....

　　4.在cell 中調用YYLabel時,能夠用其對象的 textLayout 屬性來代替 attributedText 給YYLabel賦值,同時使用 textLayout 屬性的 textBoundingSize 屬性

來設置 YYLabel 的寬高.代碼以下:

　　(PS:設置YYLabel 的寬高時,儘可能比 YYTextLayout 對象的 textBoundingSize 屬性大,否則顯示不全文字.....一開始我也質疑該屬性是否準確,可是經過看層次結構圖以後,就肯定是我須要加大 textBoundingSize 屬性值了....必定要有一個敢於懷疑的心,多嘗試!!!)

 

1     YYLabel *infoLabel = [[YYLabel alloc] init];
2     [middleView addSubview:infoLabel];
3     _briefContentLabel = infoLabel;
4     [infoLabel mas_makeConstraints:^(MASConstraintMaker *make) {
5         make.top.mas_equalTo(seperateLine.mas_bottom).offset(cInfoViewTop);
6         make.height.mas_equalTo(10);
7         make.left.right.mas_equalTo(seperateLine);
8     }];

 

 

 

// 建立 textLayout

- (YYTextLayout*)createTextLayout:(NSString *)newText

{

    NSMutableAttributedString *attr = [[NSMutableAttributedString alloc] initWithString:newText];

    attr.yy_font = [[PTVConfig instance] normalFont:10 ];

    attr.yy_color = MAKECOLOR(0x9B, 0x9B, 0x9B);

    attr.yy_lineSpacing = 5;

    attr.yy_alignment = NSTextAlignmentCenter;

    

    CGFloat maxWidth = subtitleMaxWidth  ;

    CGSize containerSize = CGSizeMake(maxWidth , CGFLOAT_MAX);

    YYTextLayout *layout = [YYTextLayout layoutWithContainerSize:containerSize text:attr];

    return layout;

}

 

// 調用方式

- (void)updateLabelText:(NSString *)str

{

    // 設置內容

    self.subtitleLabel.textLayout = [self createTextLayout:str];

    

    CGFloat labelHeight = [self heightOfInfoText:str];

    

    [self.subtitleLabel mas_updateConstraints:^(MASConstraintMaker *make) {

        make.height.mas_equalTo(labelHeight);

    }];

}

 

// 高度每每有10個點的偏差,須要比 YYLayout 計算的高度多10個點

- (CGFloat)heightOfInfoText:(NSString *)str

{

    YYTextLayout *layout = [self createTextLayout:str];

    CGFloat infoHeight = layout.textBoundingSize.height + 10  ;

    return infoHeight;

}

 或者使用不一樣屬性的字符串

 1 #pragma mark 設置特殊的文字和頁面高度
 2 - (NSMutableAttributedString *)getCardSuccMsgAttrStr{
 3     NSMutableAttributedString *attr = [[NSMutableAttributedString alloc] initWithString:@"在接下來的30分鐘內，主播收到的里程值會所有雙倍"];
 4     attr.yy_font = [[PTVConfig instance] normalFont:10 ];
 5     attr.yy_color = MAKECOLOR(0x9B, 0x9B, 0x9B);
 6     [attr yy_setColor:UIColorFromRGB(0xD2800C) range:NSMakeRange(5, 4)];
 7     attr.yy_lineSpacing = 5;
 8     attr.yy_alignment = NSTextAlignmentCenter;
 9     return attr;
10 }
11 
12 - (NSMutableAttributedString *)getPrestigeSuccMsgAttrStr{
13     NSMutableAttributedString *attr = [[NSMutableAttributedString alloc] initWithString:@"主播聲望值+1"];
14     attr.yy_font = [[PTVConfig instance] normalFont:10 ];
15     attr.yy_color = MAKECOLOR(0x9B, 0x9B, 0x9B);
16     [attr yy_setColor:UIColorFromRGB(0xD2800C) range:NSMakeRange(5, 2)];
17     attr.yy_lineSpacing = 5;
18     attr.yy_alignment = NSTextAlignmentCenter;
19     return attr;
20 }
21 
22 - (NSMutableAttributedString *)getFailMsg:(NSString *)msg{
23     NSMutableAttributedString *attr = [[NSMutableAttributedString alloc] initWithString:msg];
24     attr.yy_font = [[PTVConfig instance] normalFont:10 ];
25     attr.yy_color = MAKECOLOR(0x9B, 0x9B, 0x9B);
26     attr.yy_lineSpacing = 5;
27     attr.yy_alignment = NSTextAlignmentCenter;
28     return attr;
29 }
30 
31 
32 // 調用方式
33 - (void)updateLabelText:(ToastMsgType)type errmsg:(NSString *)errmsg
34 {
35     NSMutableAttributedString *attri = [NSMutableAttributedString new];
36     switch (type) {
37         case 1:
38             attri = [self getCardSuccMsgAttrStr];
39             break;
40             
41         case 2:
42             attri = [self getPrestigeSuccMsgAttrStr];
43             break;
44             
45         case 3:
46             attri = [self getFailMsg:errmsg];
47             break;
48     }
49     // 設置內容
50     self.subtitleLabel.textLayout = [self createTextLayout:attri];
51     
52     CGFloat labelHeight = [self heightOfInfoText:attri];
53     
54     [self mas_updateConstraints:^(MASConstraintMaker *make) {
55         make.height.mas_equalTo(labelHeight);
56     }];
57 }
58 
59 // 建立 textLayout
60 - (YYTextLayout*)createTextLayout:(NSMutableAttributedString *)attr
61 {
62     CGFloat maxWidth = subtitleMaxWidth  ;
63     CGSize containerSize = CGSizeMake(maxWidth , CGFLOAT_MAX);
64     YYTextLayout *layout = [YYTextLayout layoutWithContainerSize:containerSize text:attr];
65     return layout;
66 }
67 
68 // 高度每每有10個點的偏差,須要比 YYLayout 計算的高度多10個點
69 - (CGFloat)heightOfInfoText:(NSMutableAttributedString *)attr
70 {
71     YYTextLayout *layout = [self createTextLayout:attr];
72     CGFloat infoHeight = layout.textBoundingSize.height + [self getTopBottomMargin]  ;
73     return infoHeight;
74 }

 或者使用container的方式

1     YYTextContainer *container = [YYTextContainer containerWithSize:containerSize];
2     container.maximumNumberOfRows = 2;
3     container.truncationType = YYTextTruncationTypeEnd;
4     YYTextLayout *layout = [YYTextLayout layoutWithContainer:container text:attrM];