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androidcachingandroid-activitywebviewpreferences

webview.clearCache from PreferenceActivity

I have preferences.xml which is used in my extension of PreferencesActivity.

I have another preference in the xml that I would like to use to clear the cache of a webview.

It has a key though I can't work out how to fire webview.clearCache by pressing the entry in my preferences...

In a nutshell, I'd like to run the webview.clearCache() command from a my preferences screen like one can from an options menu item.

OK so I think I have to use something like setOnPreferenceClickListener with onPreferenceClick, but how?

Solution

  • Solved by adding:

        Preference myPref = findPreference("myPref");
    myPref.setOnPreferenceClickListener(new OnPreferenceClickListener() {

        @Override
        public boolean onPreferenceClick(Preference preference) {
            MyActivity.mWebView.clearCache(true);
            return false;
        }
    });