最常见的app登录页会有一行“请阅读并同意《用户协议》和《隐私政策》”，并且《用户协议》和《隐私政策》字体颜色不一样，还要绑定点击事件，跳转查看协议。
那么这种情况通过多控件实现比较麻烦，直接通过textview控件即可实现。
一、创建textview，并禁掉编辑、滑动等功能
self.textView = [[UITextView alloc]initWithFrame:CGRectMake(0, 100, 200, 100)];
[self.view addSubview:self.textView];
self.textView.backgroundColor = [UIColor lightGrayColor];
self.textView.editable=NO;
self.textView.scrollEnabled = NO;
self.textView.selectable=NO;
self.textView.delegate=self;
二、创建字符串，并将要添加点击事件的字符串赋予关键字。为textview添加手势，通过关键字区分点击事件
NSString*fristStr =@"我已阅读并同意";
NSString*secondStr =@"《用户协议》";
NSString*thirdStr =@"、";
NSString*fourthStr =@"《隐私政策》";
NSString*allStr = [NSStringstringWithFormat:@"%@%@%@%@",fristStr,secondStr,thirdStr,fourthStr];
NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc]initWithString:allStr];
//给需要点击的部分添加关键字
[attributedStringaddAttribute:NSLinkAttributeNamevalue:@"firstmanager"range:[[attributedStringstring]rangeOfString:secondStr]];
[attributedStringaddAttribute:NSLinkAttributeNamevalue:@"secondmanager"range:[[attributedStringstring]rangeOfString:fourthStr]];
//赋值
self.textView.attributedText= attributedString;
//设置点击部分的文字颜色
self.textView.linkTextAttributes = @{NSForegroundColorAttributeName:[UIColor orangeColor]};
UITapGestureRecognizer*textTap = [[UITapGestureRecognizeralloc]initWithTarget:selfaction:@selector(addGestureRecognizer:)];
[self.textView addGestureRecognizer:textTap];
三、手势函数实现
#pragma mark -- textVeiw 手势
-(void)addGestureRecognizer:(UITapGestureRecognizer*)gestureRecognizer{
if([gestureRecognizerisKindOfClass:[UITapGestureRecognizerclass]]) {
CGPointtopLocation = [gestureRecognizerlocationInView:self.textView];
UITextPosition*textPosition = [self.textViewclosestPositionToPoint:topLocation];
NSDictionary *attributes = [self.textView textStylingAtPosition:textPosition inDirection:UITextStorageDirectionBackward];
NSURL*url = attributes[NSLinkAttributeName];
if(url) {
NSRangerange = [self.textView.textrangeOfString:@"《用户协议》"];
if([urlisKindOfClass:[NSStringclass]] && [(NSString*)urlisEqualToString:@"firstmanager"]){
range = [self.textView.textrangeOfString:@"《用户协议》"];
}elseif([urlisKindOfClass:[NSStringclass]] && [(NSString*)urlisEqualToString:@"secondmanager"]){
range = [self.textView.textrangeOfString:@"《隐私政策》"];
}
[self textViews:self.textView shouldInteractWithURL:url inRange:range];
}
}
}
- (void)textViews:(UITextView*)textViewshouldInteractWithURL:(NSURL*)URLinRange:(NSRange)characterRange{
if([(NSString*)URLisEqualToString:@"firstmanager"]) {
NSLog(@"点击的是《用户协议》");
}elseif([(NSString*)URLisEqualToString:@"secondmanager"]) {
NSLog(@"点击的是《隐私政策》");
}
}