ios开发webview 的三种引用方式以及动态更新本地静态页的方法

1最简单最基本的

NSURL *url = [NSURL URLWithString:@"http://www.baidu.com"];

NSURLRequest *request = [NSURLRequest requestWithURL:url];

[self.webView loadRequest:request];

2 引用导入工程的文件记得放入对应的js css 文件

NSString * htmlPath = [[NSBundle mainBundle] pathForResource:@"mall" ofType:@"html"];

NSString * htmlCont = [NSString stringWithContentsOfFile:htmlPath encoding:NSUTF8StringEncoding error:nil]; // 获取当前应用的根目录

NSString *path = [[NSBundle mainBundle] bundlePath];

NSURL *baseURL = [NSURL fileURLWithPath:path]; // 通过baseURL的方式加载的HTML

// 可以在HTML内通过相对目录的方式加载js,css,img等文件

[self.webView loadHTMLString:htmlCont baseURL:baseURL];

3 引用沙盒里的文件(文件需要下载到沙盒里,后续会整理相关代码)

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask,YES);

NSString *docDir = [paths objectAtIndex:0];

NSString *filePath = [docDir stringByAppendingPathComponent:@"mall.html"];

NSURL *baseUrl = [NSURL URLWithString:filePath];

NSString *htmlstring=[[NSString alloc]initWithContentsOfFile:filePath encoding:NSUTF8StringEncoding error:nil];

[self.webView loadHTMLString:htmlstring baseURL:baseUrl];

4 更新本地静态页

// ViewController.m

// VueText

// Created by dongqiangfei on 2017/3/22.

#import "ViewController.h"

#import "WebViewController.h"

#import "AFNetworking.h"

#import "ZipArchive.h"

#define WIDTHWSCREEN [UIScreen mainScreen].bounds.size.width

@interface ViewController ()

{

UILabel *slider_lab;

}

@end

@implementation ViewController

- (void)viewDidLoad {

[super viewDidLoad];

[self make_btn];

[self make_slider];

//获取文件路径

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

NSString *documentsDirectory=[paths objectAtIndex:0];//Documents目录

NSLog(@"NSDocumentDirectory:%@",documentsDirectory);

// Do any additional setup after loading the view, typically from a nib.

}

-(void)make_slider

{

slider_lab = [[UILabel alloc] initWithFrame:CGRectMake(WIDTHWSCREEN/2-100, 50, 200, 30)];

slider_lab.textColor = [UIColor colorWithRed:0/255.0 green:122/255.0 blue:255/255.0 alpha:1];

slider_lab.textAlignment = NSTextAlignmentCenter;

[self.view addSubview:slider_lab];

}

-(void)make_btn

{

NSArray *arr = @[@"查看效果",@"下载文件_更新成功",@"删除文件",@"解压文件",@"下载原始文件",@"Vue更新单个文件",@"Vue本地框架更新文件"];

for (int i=0 ; i< arr.count; i++) {

UIButton *btn = [UIButton buttonWithType:UIButtonTypeRoundedRect];

btn.frame = CGRectMake(WIDTHWSCREEN/2-100, 200+50*i, 200, 30);

[btn setTitle:arr[i] forState:UIControlStateNormal];

btn.tag = 1000 +i;

[btn addTarget:self action:@selector(btn_click:) forControlEvents:UIControlEventTouchUpInside];

[self.view addSubview:btn];

}

-(void)btn_click:(UIButton *)btn

{

// 原始链接

NSString *orange_str = @"连接可以上传文件到博客园获得";

//更新成功的连接更新所有的文件

NSString *success_update = @"连接可以上传文件到博客园获得";

//更新单个文件

NSString *mall_single_update = @"连接可以上传文件到博客园获得";

//更新单个文件以及更新某个文件夹里的文件以及使用本地vue框架

NSString *mall_single_locatial_update = @"连接可以上传文件到博客园获得";

if (btn.tag == 1000) {//查看效果

WebViewController *vc = [[WebViewController alloc] init];

[self presentViewController:vc animated:YES completion:nil];

}else if (btn.tag == 1001){//afn下载文件

[self download_file_with_file_name:@"html.zip" and_url_string:success_update];

}else if (btn.tag == 1002){//删除文件

[self deleteFile:@"c下载"];

}else if (btn.tag == 1003){//解压文件

[self UnZipWith:@"html.zip"];

}else if (btn.tag == 1004){//c 函数下载

[self download_file_with_file_name:@"html.zip" and_url_string:orange_str];

//NSString *str_name = [self DownloadTextFile:orange_str fileName:@"html.zip"];

// NSLog(@"%@",str_name);

}else if (btn.tag == 1005){//单独更新一个页面用上vue

[self download_file_with_file_name:@"html.zip" and_url_string:mall_single_update];

}else if (btn.tag == 1006){//更新单个文件以及更新某个文件夹里的文件以及使用本地vue框架

[self download_file_with_file_name:@"html.zip" and_url_string:mall_single_locatial_update];

}

// 删除沙盒里的文件

-(void)deleteFile:(NSString *)file {

NSFileManager* fileManager=[NSFileManager defaultManager];

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES);

//文件名

NSString *uniquePath=[[paths objectAtIndex:0] stringByAppendingPathComponent:file];

BOOL blHave=[[NSFileManager defaultManager] fileExistsAtPath:uniquePath];

if (!blHave) {

NSLog(@"no have");

return ;

}else {

NSLog(@" have");

BOOL blDele= [fileManager removeItemAtPath:uniquePath error:nil];

if (blDele) {

slider_lab.text = @"删除下载文件解压完毕的文件";

slider_lab.text = @"可以去看效果喽";

NSLog(@"dele success");

}else {

slider_lab.text = @"删除下载文件解压完毕的文件失败";

NSLog(@"dele fail");

}

- (void)OpenZip:(NSString*)zipPath unzipto:(NSString*)_unzipto

{

ZipArchive* zip = [[ZipArchive alloc] init];

if( [zip UnzipOpenFile:zipPath] )

{

BOOL ret = [zip UnzipFileTo:_unzipto overWrite:YES];

if( NO==ret )

{

NSLog(@"error");

}

[zip UnzipCloseFile];

slider_lab.text = @"解压下载文件成功";

//删除无用文件

[self deleteFile:@"__MACOSX"];

[self deleteFile:@"html.zip"];

}

/**解压缩文件 str_name 解压出来的文件命名**/

-(void)UnZipWith:(NSString *)str_name

{

slider_lab.text = @"开始解压下载文件";

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

NSString *documentsDirectory=[paths objectAtIndex:0];//Documents目录

NSLog(@"NSDocumentDirectory:%@",documentsDirectory);

[self OpenZip:[NSString stringWithFormat:@"%@/%@",documentsDirectory,str_name] unzipto:documentsDirectory];

}

//c 函数下载文件

-(NSString*)DownloadTextFile:(NSString*)fileUrl fileName:(NSString*)_fileName

{

NSArray *documentPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask,YES);//使用C函数NSSearchPathForDirectoriesInDomains来获得沙盒中目录的全路径。

NSString *ourDocumentPath =[documentPaths objectAtIndex:0];

// NSString *sandboxPath = NSHomeDirectory();

// NSString *documentPath = [sandboxPath stringByAppendingPathComponent:@"TestDownImgZip.app"];//将Documents添加到sandbox路径上//TestDownImgZip.app

NSString *FileName=[ourDocumentPath stringByAppendingPathComponent:_fileName];//fileName就是保存文件的文件名

NSFileManager *fileManager = [NSFileManager defaultManager];

// Copy the database sql file from the resourcepath to the documentpath

if ([fileManager fileExistsAtPath:FileName])

{

return FileName;

}else

{

NSURL *url = [NSURL URLWithString:fileUrl];

NSData *data = [NSData dataWithContentsOfURL:url];

[data writeToFile:FileName atomically:YES];//将NSData类型对象data写入文件，文件名为FileName

}

return FileName;

}

//下载文件 afn

- (void)download_file_with_file_name:(NSString *)file_name and_url_string:(NSString *)url_name{

slider_lab.text = @"开始下载文件";

NSString *savedPath = [NSHomeDirectory() stringByAppendingString:[NSString stringWithFormat:@"/Documents/%@",file_name]];

// NSDictionary *paramaterDic= @{@"jsonString":[@{@"userid":@"2332"} JSONString]?:@""};

[self downloadFileWithOption:@{}

withInferface:url_name

savedPath:savedPath

downloadSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {

} downloadFailure:^(AFHTTPRequestOperation *operation, NSError *error) {

} progress:^(float progress) {

}];

}

/**

* @author Jakey

* @brief 下载文件

* @param paramDic 附加post参数

* @param requestURL 请求地址

* @param savedPath 保存在磁盘的位置

* @param success 下载成功回调

* @param failure 下载失败回调

* @param progress 实时下载进度回调

- (void)downloadFileWithOption:(NSDictionary *)paramDic

withInferface:(NSString*)requestURL

savedPath:(NSString*)savedPath

downloadSuccess:(void (^)(AFHTTPRequestOperation *operation, id responseObject))success

downloadFailure:(void (^)(AFHTTPRequestOperation *operation, NSError *error))failure

progress:(void (^)(float progress))progress

{

//沙盒路径 //NSString *savedPath = [NSHomeDirectory() stringByAppendingString:@"/Documents/xxx.zip"];

AFHTTPRequestSerializer *serializer = [AFHTTPRequestSerializer serializer];

NSMutableURLRequest *request =[serializer requestWithMethod:@"GET" URLString:requestURL parameters:paramDic error:nil];

//以下是手动创建request方法 AFQueryStringFromParametersWithEncoding有时候会保存

// NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:requestURL]];

// NSMutableURLRequest *request =[[[AFHTTPRequestOperationManager manager]requestSerializer]requestWithMethod:@"POST" URLString:requestURL parameters:paramaterDic error:nil];

// NSString *charset = (__bridge NSString *)CFStringConvertEncodingToIANACharSetName(CFStringConvertNSStringEncodingToEncoding(NSUTF8StringEncoding));

// [request setValue:[NSString stringWithFormat:@"application/x-www-form-urlencoded; charset=%@", charset] forHTTPHeaderField:@"Content-Type"];

// [request setHTTPMethod:@"POST"];

// [request setHTTPBody:[AFQueryStringFromParametersWithEncoding(paramaterDic, NSASCIIStringEncoding) dataUsingEncoding:NSUTF8StringEncoding]];

AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc]initWithRequest:request];

[operation setOutputStream:[NSOutputStream outputStreamToFileAtPath:savedPath append:NO]];

[operation setDownloadProgressBlock:^(NSUInteger bytesRead, long long totalBytesRead, long long totalBytesExpectedToRead) {

float p = (float)totalBytesRead / totalBytesExpectedToRead;

progress(p);

NSLog(@"download：%f", (float)totalBytesRead / totalBytesExpectedToRead);

slider_lab.text = [NSString stringWithFormat:@"下载进度:%0.2f%@",(float)(100.0*totalBytesRead / totalBytesExpectedToRead),@"%"];

}];

[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {

success(operation,responseObject);

slider_lab.text = @"下载成功";

NSLog(@"下载成功");

[self UnZipWith:@"html.zip"];

} failure:^(AFHTTPRequestOperation *operation, NSError *error) {

success(operation,error);

slider_lab.text = @"下载失败";

NSLog(@"下载失败");

}];

[operation start];

}

-(void)receive_lujing

{

NSString *path = NSHomeDirectory();//主目录

NSLog(@"NSHomeDirectory:%@",path);

NSString *userName = NSUserName();//与上面相同

NSString *rootPath = NSHomeDirectoryForUser(userName);

NSLog(@"NSHomeDirectoryForUser:%@",rootPath);

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

NSString *documentsDirectory=[paths objectAtIndex:0];//Documents目录

NSLog(@"NSDocumentDirectory:%@",documentsDirectory);

}

- (void)didReceiveMemoryWarning {

[super didReceiveMemoryWarning];

// Dispose of any resources that can be recreated.

}

@end

以下是js传参的方法

- (void)webViewDidFinishLoad:(UIWebView *)webView {

NSString *colorString = @"color";

NSString *getValue = [NSString stringWithFormat:@"javascript:js方法('%@','%@','%@','%@','%@','%@')",[BDSingleton sharedSingle].username,[BDSingleton sharedSingle].token,thisGroupid,kBaseWebViewLocationURL,conditionStr,colorString];

[webView stringByEvaluatingJavaScriptFromString:getValue];

}

ios开发webview 的三种引用方式以及动态更新本地静态页的方法

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