最近遇到的一些问题和解法

更改状态栏颜色

UIView *statusBar = [[[UIApplication sharedApplication] valueForKey:@"statusBarWindow"] valueForKey:@"statusBar"];
    if ([statusBar respondsToSelector:@selector(setBackgroundColor:)]) {
        statusBar.backgroundColor = [UIColor whiteColor];
    }

解析链接中的文字

view.URLString = [urlstring stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLQueryAllowedCharacterSet]];

服务器返回的时间戳转换成时间

//一般服务器返回的时间戳是13位的，ios的时间戳是10位的
NSTimeInterval time = [recTime doubleValue]/1000;
NSDate *date = [NSDate dateWithTimeIntervalSince1970:time];
NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
[formatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
NSString *dateString       = [formatter stringFromDate: date];
NSLog(@"服务器返回的时间戳对应的时间是:%@",dateString);

截取wkwebview里的视频URL

//在加载完成的方法里
NSString *JSStr = @"(document.getElementsByTagName(\"video\")[0]).src";
    [webView evaluateJavaScript:JSStr completionHandler:^(id _Nullable response, NSError * _Nullable error) {
        if (![response isEqual:[NSNull null]] && response != nil) {
            NSLog(@"response == %@",response);
#warning maybe need a DIY videoplayer
        } else {
            NSLog(@"Mission for Catching videoURL is failed");
        }
    }];