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UIWebView加载CSS样式的html

2016-07-19 21:49 323 查看

UIWebView加载CSS样式的html

效果

源码

//
//  ViewController.m
//  CSS
//
//  Created by YouXianMing on 16/7/19.
//  Copyright © 2016年 YouXianMing. All rights reserved.
//

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {

[super viewDidLoad];

self.view.backgroundColor = [UIColor whiteColor];
CGFloat width             = self.view.bounds.size.width;
CGFloat height            = self.view.bounds.size.height;

NSString *cssContentString = [NSString stringWithFormat:
@"<html> \n"

"<head> \n"
"<style type=\"text/css\"> \n"
"h1       {font-size: 20; font-family: \"Heiti SC\"; color: 4C4741;}\n"
"body     {font-size: 15; font-family: \"Heiti SC\"; color: 4C4741;}\n"
"p.style1 {text-indent: 2em;} \n"
"p.style2 {text-indent: 2em; color: 000000;} \n"
"</style> \n"
"</head> \n"

"<body>"
"<h1 align=\"center\">穷玩车，富玩表，SB玩电脑😭</h1>"
"<p class=\"style1\">别沮丧了。虽然你不曾拥有一场说走就走的旅行，但至少还有一个说胖就胖的体型呀。</p>"
"<p class=\"style2\"><i>虽然你的年龄过不了六一儿童节，但你的身高可以啊！</i></p>"
"%@"
"</body> \n"

"</html>", [self htmlForJPGImage:[UIImage imageNamed:@"IMG_2845.jpg"]]];

UIWebView *webView      = [[UIWebView alloc] initWithFrame:CGRectMake(0, 40, width, height - 40)];
webView.backgroundColor = [UIColor whiteColor];
[self.view addSubview:webView];
[webView loadHTMLString:cssContentString baseURL:nil];
}

- (NSString *)htmlForJPGImage:(UIImage *)image {

CGFloat   width       = self.view.bounds.size.width;
NSData   *imageData   = UIImageJPEGRepresentation(image,1.0);
NSString *imageSource = [NSString stringWithFormat:@"data:image/jpg;base64,%@",[imageData base64EncodedStringWithOptions:0]];
return [NSString stringWithFormat:@"<img src=\"%@\" width = %f />", imageSource, width];
}

@end

细节

1. 自己给一张图片测试

2. CSS样式

3. CSS学习地址

http://www.w3school.com.cn/css/index.asp

素材

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