Question

基本适配器类

builder.setPositiveButton("View Full News Source", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {

                        android.support.v4.app.Fragment fragment = new Source();
                        FragmentManager fm = fragment.getFragmentManager();
                        FragmentTransaction ft = fm.beginTransaction();
                        Bundle bundle = new Bundle();
                        bundle.putString("url", source.get(position).toString()); //key and value
                        fragment.setArguments(bundle);
                        ft.replace(R.id.frameLayout, fragment);
                        ft.commit();


                    }
                });
                builder.show();

源片段

 public class Source extends Fragment {
    private WebView webView;
    private ImageView back;

    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        webView = container.findViewById(R.id.webview);
        back = container.findViewById(R.id.back);

        return inflater.inflate(R.layout.source, container, false);
    }

    @Override
    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {

        super.onViewCreated(view, savedInstanceState);

        String url = getArguments().getString("url");
        Toast.makeText(getActivity(), "url" + url, Toast.LENGTH_SHORT).show();

        WebSettings settings = webView.getSettings();
        settings.setJavaScriptEnabled(true);
        settings.supportZoom();
        settings.getBuiltInZoomControls();
        settings.getDisplayZoomControls();
        webView.setWebChromeClient(new WebChromeClient());
        webView.loadUrl(url);

    }

}

LOGCAT

java.lang.NullPointerException 在akaxay.com.crynewsx.CustomAdapter $ 1 $ 1.onClick（CustomAdapter.java:106）在android.support.v7.app.AlertController $ ButtonHandler.handleMessage（AlertController.java:166）在android.os.Handler.dispatchMessage（Handler.java:107）在android.os.Looper.loop（Looper.java:194）在android.app.ActivityThread.main（ActivityThread.java:5391）在java.lang.reflect.Method.invokeNative（本机方法）在java.lang.reflect.Method.invoke（Method.java:525）在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run（ZygoteInit.java:833）在com.android.internal.os.ZygoteInit.main（ZygoteInit.java:600）在dalvik.system.NativeStart.main（本机方法）

获得N.P.E.在我的自定义适配器类中的FragmentTransaction上

0 个答案: