#import "ViewController.h"



#define font 17

@interface ViewController ()<UITextViewDelegate>

@property (weak, nonatomic) IBOutlet UITextView *textview;

@property (assign, nonatomic) BOOL isSelect;

@end
@implementation ViewController
 - (void)viewDidLoad {

     [super viewDidLoad];

     [self protocolIsSelect:self.isSelect];
 }

 - (void)protocolIsSelect:(BOOL)select {

     NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:@"请遵守以下协议《支付宝协议》《微信协议》《建行协
》《招行协议》《中国银行协议》《上海银行协议》"];

     [attributedString addAttribute:NSLinkAttributeName

                              value:@"zhifubao://"

                              range:[[attributedString string] rangeOfString:@"《支付宝协议》"]];

     [attributedString addAttribute:NSLinkAttributeName

                              value:@"weixin://"

                              range:[[attributedString string] rangeOfString:@"《微信协议》"]];

     [attributedString addAttribute:NSLinkAttributeName

                              value:@"jianhang://"

                              range:[[attributedString string] rangeOfString:@"《建行协议》"]];

     UIImage *image = [UIImage imageNamed:select == YES ? @"new_feature_share_true" : @"new_feature_share_false"];

     CGSize size = CGSizeMake(font + 2, font + 2);

     UIGraphicsBeginImageContextWithOptions(size, false, 0);

     [image drawInRect:CGRectMake(0, 2, size.width, size.height)];

     UIImage *resizeImage = UIGraphicsGetImageFromCurrentImageContext();

     UIGraphicsEndImageContext();

     NSTextAttachment *textAttachment = [[NSTextAttachment alloc] init];

     textAttachment.image = resizeImage;

     NSMutableAttributedString *imageString = [NSMutableAttributedString attributedStringWithAttachment:textAttachment];

     [imageString addAttribute:NSLinkAttributeName

                              value:@"checkbox://"

                              range:NSMakeRange(0, imageString.length)];

     [attributedString insertAttributedString:imageString atIndex:0];

     [attributedString addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:font] range:NSMakeRange(0, attributedString.length)];

     _textview.attributedText = attributedString;

     _textview.linkTextAttributes = @{NSForegroundColorAttributeName: [UIColor blueColor],

                                      NSUnderlineColorAttributeName: [UIColor lightGrayColor],

                                      NSUnderlineStyleAttributeName: @(NSUnderlinePatternSolid)};

     _textview.delegate = self;

     _textview.editable = NO;        //必须禁止输入，否则点击将弹出输入键盘

     _textview.scrollEnabled = NO;


　　　_textview.selectable = NO;

 }

 - (BOOL)textView:(UITextView *)textView shouldInteractWithURL:(NSURL *)URL inRange:(NSRange)characterRange {

     if ([[URL scheme] isEqualToString:@"jianhang"]) {

         NSLog(@"建行支付---------------");

         return NO;

     } else if ([[URL scheme] isEqualToString:@"zhifubao"]) {

         NSLog(@"支付宝支付---------------");

         return NO;

     } else if ([[URL scheme] isEqualToString:@"weixin"]) {

        NSLog(@"微信支付---------------");

         return NO;

     } else if ([[URL scheme] isEqualToString:@"checkbox"]) {

         self.isSelect = !self.isSelect;

         [self protocolIsSelect:self.isSelect];

         return NO;

     }

     return YES;

 }

 @end