Question

I have a UIWebView class that is added to each storyboard on load, but when passing into this class the page I require form the parent ViewController it only show the file from the first ever page and on each different page/viewController its the same even though I set it different on each.

Is it somehow caching this page and if so, how can I have a clean UIWebview everytime?

my UIwebview class m file (ContentView.m):

  - (id)initWithFrame:(CGRect)frame {
     self = [super initWithFrame:frame];
     if (self) {
         NSString *urlpath = [[NSBundle mainBundle] pathForResource:pageToDisplay ofType:@"html" inDirectory:@"pageContent"];
          NSURL *url=[[NSURL alloc] initFileURLWithPath:urlpath];
          NSURLRequest *request=[NSURLRequest requestWithURL:url];

          [self loadRequest:request];
       }
      return self;
  }

My Parent view passes the requested page using the following variable pageToDisplay:

Parent View m file:

  #import "ContentView.h"

    - (void)viewDidLoad {
        ContentView *dispalyPageContent = [[ContentView alloc] init];
         [dispalyPageContent setPageToDisplay:@"THEpg1"];
         [self.view addSubview:dispalyPageContent];
          //-- 
         [super viewDidLoad];
    }

For each other parent view the code is the same but the [displayPageContent setPageToDisplay:@"THEpg1"]; which should change the page I want, e.g. next view would be [displayPageContent setPageToDisplay:@”THEpg2″];

Is it possible to clear this and load a fresh request each time?

Answer 1

It’s because when you call ContentView *dispalyPageContent = [[ContentView alloc] init]; in your viewDidLoad , you init it with:

NSString *urlpath = [[NSBundle mainBundle] pathForResource:pageToDisplay ofType:@"html" inDirectory:@"pageContent"];

And in pathForResource:pageToDisplay at the moment of initializing is some trash.

And then, when you call [dispalyPageContent setPageToDisplay:@"smth"] , it changes nothing, because your class ContentView has been already inited with some trash in PageToDisplay

(Also, you call [[ContentView alloc] init]; and in your code there is only initWithFrame:... for objects of ContentView class)

You can solve this in this way:
1) in your ContentView.m

 - (id)initWithFrame:(CGRect)frame pageToDisp:(NSString *)pageToDisp {
     self = [super initWithFrame:frame];
     if (self) {
         NSString *urlpath = [[NSBundle mainBundle] pathForResource:pageToDisp ofType:@"html" inDirectory:@"pageContent"];
          NSURL *url=[[NSURL alloc] initFileURLWithPath:urlpath];
          NSURLRequest *request=[NSURLRequest requestWithURL:url];

          [self loadRequest:request];
       }
      return self;
  }

2) In your ContentView.h:

- (id)initWithFrame:(CGRect)frame pageToDisp:(NSString *)pageToDisp

3) And then, in viewDidLoad:

- (void)viewDidLoad {
        ContentView *dispalyPageContent = [[ContentView alloc] initWithFrame:someFrame pageToDisp:@"THEpg1"];

         [self.view addSubview:dispalyPageContent];
          //-- 
         [super viewDidLoad];
    }