方法findViewById（int）未定义

Question

I am extending fragment and i get this error saying, the method findViewById(int) is undefined for the type Song.

The error appear for both my progress bar and webview on the findViewById.

public class Song extends Fragment{


    ProgressBar progressBar;


    @Override


    public View onCreateView(LayoutInflater inflater, ViewGroup container,


    Bundle savedInstanceState) {


    View myFragmentView = inflater.inflate(R.layout.song, container, false);


    return myFragmentView;


    progressBar = (ProgressBar)findViewById(R.id.progressBar);


    final WebView mWebView = (WebView)findViewById(R.id.Browsery);


    mWebView.setScrollBarStyle(WebView.SCROLLBARS_OUTSIDE_OVERLAY);


    mWebView.loadUrl("....");


    mWebView.setWebViewClient(new WebViewClient(){



    public void onPageFinished(WebView view, String url){


    progressBar.setVisibility(View.INVISIBLE);
    }

    });

Please i need help

Thank you.

Answer 1

You are finding view in wrong way, append view object while findViewById as like below:

 progressBar = (ProgressBar)myFragmentView.findViewById(R.id.progressBar);
 final WebView mWebView = (WebView)myFragmentView.findViewById(R.id.Browsery);

Answer 2

您应该这样做。

ImageView imageView = (ImageView) getView().findViewById(R.id.XYZ);

Answer 3

public class Song extends Fragment{


ProgressBar progressBar;


@Override


public View onCreateView(LayoutInflater inflater, ViewGroup container,


Bundle savedInstanceState) {


View myFragmentView = inflater.inflate(R.layout.song, container, false);





progressBar = (ProgressBar)myFragmentView.findViewById(R.id.progressBar);


final WebView mWebView = (WebView)myFragmentView.findViewById(R.id.Browsery);
 return myFragmentView;

mWebView.setScrollBarStyle(WebView.SCROLLBARS_OUTSIDE_OVERLAY);


mWebView.loadUrl("....");


mWebView.setWebViewClient(new WebViewClient(){



public void onPageFinished(WebView view, String url){


progressBar.setVisibility(View.INVISIBLE);
}

});

Answer 4

you r returning myFragmentView before getting your progressBar and webView . your code should be modified as :

public View onCreateView(LayoutInflater inflater, ViewGroup container,
    Bundle savedInstanceState) {

    View myFragmentView = inflater.inflate(R.layout.song, container, false);

    progressBar = (ProgressBar)myFragmentView.findViewById(R.id.progressBar);

    final WebView mWebView = (WebView)myFragmentView.findViewById(R.id.Browsery);

     /// your code ....
     /// .......

    // this should be the last line of your onCreateView()
    return myFragmentView;
}