UIWebView与JavaScript交互实现代理日志打印-优快云博客

本文链接：https://blog.youkuaiyun.com/s0228g0228/article/details/46792357

在UIWebView中，代码如下：

//
// webview.m
// login
//
//
// SWWebBrowser.m Create by William Sterling on 14-1-20.
//
#import "webview.h"
#import <JavaScriptCore/JavaScriptCore.h>/*导入库*/
@implementation webview
-(id)initWithFrame:(CGRect)frame
{
self=[super initWithFrame:frame];
if( self ){
self.webview=[[UIWebView alloc]initWithFrame:CGRectMake(0, 320, self.bounds.size.width, 300)];
self.webview.backgroundColor=[UIColor lightGrayColor];
NSString *htmlPath=[[NSBundle mainBundle] resourcePath];
htmlPath=[htmlPath stringByAppendingPathComponent:@"html/index.html"];
NSURL *localURL=[[NSURL alloc]initFileURLWithPath:htmlPath];
[self.webview loadRequest:[NSURLRequest requestWithURL:localURL]];
[self addSubview:self.webview];
JSContext *context = [self.webview valueForKeyPath:@"documentView.webView.mainFrame.javaScriptContext"];
context[@"log"] = ^() {
dlog(@"+++++++Begin Log+++++++");
NSArray *args = [JSContext currentArguments];
for (JSValue *jsVal in args) {
dlog(@"%@", jsVal);
}
JSValue *this = [JSContext currentThis];
dlog(@"this: %@",this);
dlog(@"-------End Log-------");
};
// [context evaluateScript:@"log('ider', [7, 21], { hello:'world', js:100 });"];
}
return self;
}
@end