iOS 自动适配的 WebView 封装 （上）

//使用UIWebView
- (instancetype)initWithFrame:(CGRect)frame usingUIWebView:(BOOL)usingUIWebView;
//会转接 WKUIDelegate，WKNavigationDelegate 内部未实现的回调。
@property (weak, nonatomic) id<RSAutoWebViewDelegate> delegate;
//内部使用的webView
@property (nonatomic, readonly) id realWebView;
//是否正在使用 UIWebView
@property (nonatomic, readonly) BOOL usingUIWebView;
//预估网页加载进度
@property (nonatomic, readonly) double estimatedProgress;
@property (nonatomic, readonly) NSURLRequest* originRequest;
//只有ios7以上的UIWebView才能获取到，WKWebView 请使用下面的方法.
@property (nonatomic, readonly) JSContext* jsContext;
//WKWebView 跟网页进行交互的方法。
- (void)addScriptMessageHandler:(id<WKScriptMessageHandler>)scriptMessageHandler name:(NSString*)name;
//back 层数
- (NSInteger)countOfHistory;
- (void)gobackWithStep:(NSInteger)step;

//---- UI 或者 WK 的API
@property (nonatomic, readonly) UIScrollView* scrollView;
- (id)loadRequest:(NSURLRequest*)request;
- (id)loadHTMLString:(NSString*)string baseURL:(NSURL*)baseURL;
@property (nonatomic, readonly, copy) NSString* title;
@property (nonatomic, readonly) NSURLRequest* currentRequest;
@property (nonatomic, readonly) NSURL* URL;
@property (nonatomic, readonly, getter=isLoading) BOOL loading;
@property (nonatomic, readonly) BOOL canGoBack;
@property (nonatomic, readonly) BOOL canGoForward;
- (id)goBack;
- (id)goForward;
- (id)reload;
- (id)reloadFromOrigin;
- (void)stopLoading;
// 清理缓存
- (void)clearCache;
- (void)evaluateJavaScript:(NSString*)javaScriptString completionHandler:(void (^)(id, NSError*))completionHandler;
// 不建议使用这个办法  因为会在内部等待webView 的执行结果
- (NSString*)stringByEvaluatingJavaScriptFromString:(NSString*)javaScriptString __deprecated_msg("Method deprecated. Use [evaluateJavaScript:completionHandler:]");
// 是否根据视图大小来缩放页面  默认为YES
@property (nonatomic) BOOL scalesPageToFit;

/* 
* url    请求地址
* isOpen 是否开启自动选择WebView功能
*        是: usingUIWebView 设置无效
*        否: usingUIWebView 设定是否使用 UIWebView
*/
- (void)loadWebViewWithURL:(NSString *)url autoChoose:(BOOL)isOpen ifCloseAutoChooseUsingUIWebView:(BOOL)usingUIWebView;

#pragma mark - 参数、方法
// URL地址
@property (nonatomic,copy) NSString *url;
// 加载URL方法
- (void)reloadRequest:(NSString *)url;
// 返回顶端
- (void)scrollToTop;
// 图片适应 JavaScript 注入
- (void)imgAutoFit;
// WebView中收起键盘方法
- (void)packupKeyboard;
// 返回方法
- (void)webViewBackAction:(UIBarButtonItem *)sender;
// 清理缓存
- (void)clearCache;
#pragma mark - 代理方法
/**
*  统一wk ui加载状态代理方法，二合一
*/
@property (nonatomic,copy) void(^startLoadBlock)(id webView);
@property (nonatomic,copy) void(^finishLoadBlock)(id webView);
@property (nonatomic,copy) void(^failLoadBlock)(id webView, NSError *error);
#pragma mark - WebViewJavascriptBridge JS交互方法
//callHandler【OC向JS发生消息】
- (void)JSCallHandlerWithFuncName:(NSString *)name Data:(NSDictionary *)dicData;
@property (nonatomic,copy) void(^javaScriptCallReturnBlock)(id response);
//registerHandler 【OC接收JS的消息】
- (void)JSRegisterHandlerWithFuncName:(NSString *)name;
@property (nonatomic,copy) void(^javaScriptRegisterReturnBlock)(id response, WVJBResponseCallback responseCallback);

// 腾讯VAS框架
#import "Sonic.h"
#import "SonicWebViewController.h"
#import "SonicOfflineCacheConnection.h"

SonicWebViewController *webVC = [[SonicWebViewController alloc]initWithUrl:testTencentURL useSonicMode:YES];
webVC.title = @"VAS·Sonic";
[self.navigationController pushViewController:webVC animated:YES];