- (void)testAddColorAndFont {
NSString *str = @"白日依山尽";
NSAttributedString *attr = str.builder.add(^(YPPSP *p) {
p.key = NSFontAttributeName;
p.value = [UIFont systemFontOfSize:30];
}).add(^(YPPSP *p) {
p.key = NSForegroundColorAttributeName;
p.value = UIColor.redColor;
}).build;
// 此处也可以使用 UILabel
YYLabel *label = [[YYLabel alloc] initWithFrame:CGRectMake(0, self.index ++ * LineHeight, UIScreen.mainScreen.bounds.size.width, LineHeight)];
label.numberOfLines = 0;
label.backgroundColor = UIColor.whiteColor;
[self.view addSubview:label];
label.attributedText = attr;
}
- (void)testReplace {
NSString *str = @"黄河入海流";
NSAttributedString *attr = str.builder.every(^(YPPDP *p) {
p.regex = @"入";
p.replace = ^NSAttributedString *(NSTextCheckingResult *result, NSInteger index, NSString *processingString) {
return YPPAttr(@"出");
};
}).build;
YYLabel *label = [[YYLabel alloc] initWithFrame:CGRectMake(0, self.index ++ * LineHeight, UIScreen.mainScreen.bounds.size.width, LineHeight)];
label.numberOfLines = 0;
[self.view addSubview:label];
label.attributedText = attr;
}
一个从字符串构建的复杂的例子
- (void)testString {
NSString *str = @"一层楼山尽, 黄河入海流[laugh], 欲穷千里目[dog], 更上一层楼";
NSAttributedString *attr =
str.builder.add(^(YPPSP *p) {
p.key = NSFontAttributeName;
p.value = [UIFont systemFontOfSize:30];
}).every(^(YPPDP *p) {
p.regex = @"一层楼";
p.replace = ^NSAttributedString *(NSTextCheckingResult * result, NSInteger index, NSString * processingString) {
return (index == 0 ? @"白日依" : @"蜀道难").builder.add(^(YPPSP *sp) {
sp.key = NSForegroundColorAttributeName;
sp.value = UIColor.blueColor;
}).add(^(YPPSP *sp) {
sp.key = NSShadowAttributeName;
NSShadow *shadow = [[NSShadow alloc] init];
shadow.shadowOffset = CGSizeMake(-1, 1);
shadow.shadowBlurRadius = 5;
shadow.shadowColor = UIColor.redColor;
sp.value = shadow;
}).build;
};
}).every(^(YPPDP *p) {
p.regex = @",";
p.range = NSMakeRange(3, 10);
p.replace = ^NSAttributedString *(NSTextCheckingResult *result, NSInteger index, NSString * processingString) {
NSMutableAttributedString *str = [[NSMutableAttributedString alloc] initWithString:@"?"];
str.yy_color = UIColor.redColor;
NSShadow *shadow = [[NSShadow alloc] init];
shadow.shadowOffset = CGSizeMake(-1, 1);
shadow.shadowBlurRadius = 10;
shadow.shadowColor = UIColor.greenColor;
str.yy_shadow = shadow;
return str;
};
}).every(^(YPPDP *p) {
p.regex = @"\\[\\w+?\\]";
p.replace = ^NSAttributedString *(NSTextCheckingResult *result, NSInteger index, NSString * processingString) {
NSString *emojiStr = [processingString substringWithRange:result.range];
UIImageView *emojiPic = [[UIImageView alloc] initWithImage:[UIImage imageNamed:emojiStr]];
NSAttributedString *emojiAttr = [NSAttributedString yy_attachmentStringWithContent:emojiPic
contentMode:UIViewContentModeScaleAspectFill
attachmentSize:CGSizeMake(30, 30)
alignToFont:[UIFont systemFontOfSize:20]
alignment:YYTextVerticalAlignmentCenter];
return emojiAttr;
};
}).add(^(YPPSP *p) {
p.key = NSKernAttributeName;
p.value = @(5);
}).build;
YYLabel *label = [[YYLabel alloc] initWithFrame:CGRectMake(0, self.index ++ * LineHeight, UIScreen.mainScreen.bounds.size.width, LineHeight)];
label.numberOfLines = 0;
label.backgroundColor = UIColor.whiteColor;
[self.view addSubview:label];
label.attributedText = attr;
}
- (void)testAppend {
NSAttributedString *attr1 = YPPAttr( @"一层楼山尽, 黄河入海流[laugh],");
NSAttributedString *attr2 = YPPAttr(@"欲穷千里目[dog], 更上一层楼");
NSAttributedString *attr =
attr1.builder.add(^(YPPSP *p) {
p.key = NSFontAttributeName;
p.value = [UIFont systemFontOfSize:20];
}).every(^(YPPDP *p) {
p.regex = @"一层楼";
p.replace = ^NSAttributedString *(NSTextCheckingResult *result, NSInteger index, NSString *processingString) {
return @"蜀道难".builder.add(^(YPPSP *sp) {
sp.key = NSForegroundColorAttributeName;
sp.value = UIColor.blueColor;
}).add(^(YPPSP *sp) {
sp.key = NSShadowAttributeName;
NSShadow *shadow = [[NSShadow alloc] init];
shadow.shadowOffset = CGSizeMake(-1, 1);
shadow.shadowBlurRadius = 5;
shadow.shadowColor = UIColor.yellowColor;
sp.value = shadow;
}).build;
};
}).append(attr2.builder.every(^(YPPDP *p) {
p.regex = @",";
p.range = NSMakeRange(3, 10);
p.replace = ^NSAttributedString *(NSTextCheckingResult *result, NSInteger index, NSString *processingString) {
NSMutableAttributedString *str = [[NSMutableAttributedString alloc] initWithString:@"?"];
str.yy_color = UIColor.redColor;
NSShadow *shadow = [[NSShadow alloc] init];
shadow.shadowOffset = CGSizeMake(-1, 1);
shadow.shadowBlurRadius = 10;
shadow.shadowColor = UIColor.greenColor;
str.yy_shadow = shadow;
str.yy_font = [UIFont systemFontOfSize:30];
return str;
};
}).add(^(YPPSP *p) {
p.key = NSForegroundColorAttributeName;
p.value = UIColor.redColor;
}).build).every(^(YPPDP *p) {
p.regex = @"\\[\\w+?\\]";
p.replace = ^NSAttributedString *(NSTextCheckingResult *result, NSInteger index, NSString *processingString) {
NSString *emojiStr = [processingString substringWithRange:result.range];
UIImageView *emojiPic = [[UIImageView alloc] initWithImage:[UIImage imageNamed:emojiStr]];
NSAttributedString *emojiAttr = [NSAttributedString yy_attachmentStringWithContent:emojiPic
contentMode:UIViewContentModeScaleAspectFill
attachmentSize:CGSizeMake(30, 30)
alignToFont:[UIFont systemFontOfSize:20]
alignment:YYTextVerticalAlignmentCenter];
return emojiAttr;
};
}).build;
YYLabel *label = [[YYLabel alloc] initWithFrame:CGRectMake(0, self.index ++ * LineHeight, UIScreen.mainScreen.bounds.size.width, LineHeight)];
label.numberOfLines = 0;
label.backgroundColor = UIColor.whiteColor;
[self.view addSubview:label];
label.attributedText = attr;
}
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