java - 使用 Fragments (ActionTabs) 和 Webview

Question

我想要我的应用程序，以便您在屏幕顶部有选项卡(让它工作)并且在 xml 文件中有一个 webview。当我收到“无法访问的声明”时，我无法使 webview 和 fragment 代码正常工作。

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.app.Activity;
import android.webkit.WebView;

public class TopRatedFragment extends Activity {

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

        View rootView = inflater.inflate(R.layout.fragment_top_rated, container, false);
        return rootView;

        //Unreachable Statement
        WebView engine = (WebView) findViewById(R.id.web_engine);
        engine.loadUrl("http://www.google.com/");

    }

}

有人有什么建议吗？

Answer 1

使用以下代码:

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.app.Activity;
import android.webkit.WebView;

public class TopRatedFragment extends Fragment {

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

    View rootView = inflater.inflate(R.layout.fragment_top_rated, container, false);

    WebView engine = (WebView) rootView.findViewById(R.id.web_engine); // `web_engine` must be in `fragment_top_rated`
    engine.loadUrl("http://www.google.com/");
    return rootView;
  }
}