On Apr 3, 4:29 am, "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> wrote:
> I'm working on a custom html browser using WebView.loadData(). I'm
> trying to implement a back button feature, but it seems that loadData
> doesn't update the history, and I have no way to do it myself.
>
> private WebView wv;
> private boolean goBack = false;
>
> public void onCreate(Bundle icicle)
> {
> super.onCreate(icicle);
> wv = (WebView)findViewById(R.id.record_html);
>
> wv.setOnKeyListener(this);
> wv.loadData("<html><body>Test!</body></html>", "text/html",
> "utf-8");
>
> }
>
> boolean onKey(View v, int keyCode, KeyEvent event)
> {
> if (keyCode == KeyEvent.KEYCODE_BACK && event.getAction() ==
> KeyEvent.ACTION_DOWN)
> {
> if (goBack)
> {
> if (wv.canGoBack())
> {
> wv.goBack();
> goBack = !goBack;
> return true;
> }
> }
> else
> {
> goBack = !goBack;
> wv.loadData("<html><body>Test 2!</body></html>","text/html",
> "utf-8");
> return true;
> }
> }
> return false;
>
> }
>
> I would expect this to first load "Test!". When I press the back
> button, it loads "Test2!" (this part works), and sets goBack to true.
> Then I press the back button again, and it sees that it can goBack,
> and loads "Test!" again. Instead, canGoBack() returns false.
>
> I've tried adding a WebViewClient and calling doUpdateVisitedHistory,
> but that is asking for a URL and doesn't accept data.
>
> Is there another way of doing this, or am I going to have to create a
> list of HTML to cycle through?
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