向android WebView片段添加共享操作

Question

<item android:id="@+id/menu_item_share"
        android:icon="@drawable/ic_menu_share"
        android:title="@string/menu_item_share"
        app:showAsAction="always"/>

public class WebviewFragment extends Fragment {
    ProgressBar bar;
    WebView myWebView;
    private Handler handler = new Handler(){
        @Override
        public void handleMessage(Message message) {
            switch (message.what) {
                case 1:{
                    webViewGoBack();
                }break;
            }
        }
    };

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

        View v = inflater.inflate(R.layout.fragment_webview, container, false);
        ;
        myWebView = (WebView) v.findViewById(R.id.WebView);
        myWebView.getSettings().setJavaScriptEnabled(true);
        myWebView.loadUrl("http://www.google.com/");
        WebSettings webSettings = myWebView.getSettings();
        webSettings.setJavaScriptEnabled(true);
        //improve webView performance
        myWebView.getSettings().setRenderPriority(WebSettings.RenderPriority.HIGH);
        myWebView.getSettings().setCacheMode(WebSettings.LOAD_DEFAULT);
        myWebView.getSettings().setAppCacheEnabled(true);
        myWebView.setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY);
        webSettings.setDomStorageEnabled(true);
        webSettings.setLayoutAlgorithm(WebSettings.LayoutAlgorithm.NARROW_COLUMNS);
        webSettings.setUseWideViewPort(true);
        webSettings.setSavePassword(true);
        webSettings.setSaveFormData(true);
        webSettings.setEnableSmoothTransition(true);
        myWebView.setWebViewClient(new WebViewClient());
}

在mainactivity.java中共享操作

 @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {

            //share app content
            case R.id.menu_item_share: {
                Intent shareIntent = new Intent(Intent.ACTION_SEND);
                shareIntent.setType("text/plain");
                shareIntent.putExtra(Intent.EXTRA_TEXT, myWebView.getUrl());
                startActivity(Intent.createChooser(shareIntent, "Share This Website!"));
                shareIntent.setPackage("com.whatsapp");
                break; //or, return true;
            }

请帮忙解决问题。

Answer 1

在碎片类中使用这些方法,并在这些方法中添加共享功能：

@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
// Do something that differs the Activity's menu here
super.onCreateOptionsMenu(menu, inflater);
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {

    case R.id.activity_menu_item:

        // Not implemented here
        return false;
    case R.id.fragment_menu_item:

        // Do Fragment menu item stuff here
        return true;

    default:
        break;
}

return false;
}

并在片段的“onCreateView（）”方法中添加这一行：

setHasOptionsMenu(true);

希望能奏效！