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iphonecocoa-touchuitabbar

Multiple tabs controlling a single UIWebview

how do I use multiple UITabBar tabs for controlling a single UIWebView?

An Example:

Pressing tab1: UIWebView loads index.html
Pressing tab2: the same UIWebView loads customers.html
Pressing tab3: the same UIWebView loads tos.html

My approach was to put the UIWebView in the AppDelegate and set self.webview of every ViewController to that single UIWebView. However, the WebView gets displayed, but is white and doesn't load anything.

Any hints?

Solution

  • WebViews are expensive so your approach is probably right, but you may want to start out with creating a separate webview in each tab view controller and see if things are working as you expect there first. The overhead may start causing your app to start receiving memory warnings, but this would at least allow you to see if your pages will at least load correctly in that context.

    Also, can you post some code that shows how you're adding your webview to each view controller? If you are not setting the frame of your webview using -setFrame, once you've added the webview as a subview of your view controller view, it won't show up correctly.