为什么Android无法识别loadurl方法？

Question

if (mItem != null) {
    (WebView)rootView.findViewById(R.id.apple).loadUrl(mItem.urls);
}

return rootView;

I don't know why android is not recognizing this method and counting it as an error. (the loadurl method with the arrow underneath) I am trying to load the webpage from the m items into the webview.

Answer 1

The cast is incomplete/misplaced. This is probably what you meant:

((WebView)rootView.findViewById(R.id.apple)).loadUrl(mItem.urls);

The cast, as you placed it, casts the expression rootView.findViewById(R.id.apple).loadUrl(mItem.urls) to a WebView , which doesn't make sense. You want to carry specifically rootView.findViewById(R.id.apple) .

The type of the value returned by findView is View , not a WebView , hence the compiler error you got.