Question

我知道showFindDialog已经过折旧，但它在我的webview中提供了我需要的功能。为此，我在片段中使用此代码在webview中显示微调器选择：

        if (wv != null) {
            Log.d("Log", "Search Method");
            wv.showFindDialog(null, true);
        }

此代码的重点应该是非常自我解释，但它在操作栏中提供了一个搜索栏以及下一个，上一个和一个＆＃34;复选标记＆＃34;按钮以关闭搜索。

我的问题是，在切换到片段之后，在导航抽屉中，搜索选项不会显示搜索文本条目或任何按钮，但它会显示键盘。

我的片段菜单正在使用这些详细信息：

在onCreate中我有：

setHasOptionsMenu(true);

我调用onCreateOptionsMenu并使用MainActivity正在使用的单独菜单，我清除菜单选项：

menu.clear();

最后，我的onOptionsItemSelected使用switch / case类型来运行方法：

search();

最后是搜索方法：

    @TargetApi(Build.VERSION_CODES.HONEYCOMB)
public void search() {
    if (Build.VERSION.SDK_INT >= 11) {
        if (wv != null) {
            Log.d("Log", "Search Method");
            wv.showFindDialog(null, true);
        }
    } else {
        searchOldMethod();
    }
}

*注意 - 我不关心searchOldMethod（）;如上所示。

我正在链接下面发生的事情的照片。这是在我从显示的片段切换到另一个片段后再次发生的。我点击了搜索，只填充了键盘。（托管在imgur上）：

http://imgur.com/SFtkDEC

有谁知道为什么会这样？

碎片：

package com.example.fragmenttest.app;

import android.annotation.TargetApi;
import android.app.Activity;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.util.Log;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.ProgressBar;
import android.widget.Spinner;
import android.widget.Toast;

import java.lang.reflect.Method;


public class BlankFragment extends Fragment {
// TODO: Rename parameter arguments, choose names that match
// the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
private static final String ARG_PARAM1 = "param1";
private static final String ARG_PARAM2 = "param2";

public static final int DIALOG_DOWNLOAD_PROGRESS = 0;
ProgressBar pd = null;
public static final String PREFS_NAME2 = "SearchFile";
Spinner spLoadFrom;
WebView wv;

private LinearLayout container;
private Button nextButton, closeButton;
private EditText findBox;

private ArrayAdapter<CharSequence> spinnerArrayAdapter;

String name[] = { "Stuff" };
String displayName[] = {
        "stuff" };

// TODO: Rename and change types of parameters
private String mParam1;
private String mParam2;

private OnFragmentInteractionListener mListener;

/**
 * Use this factory method to create a new instance of
 * this fragment using the provided parameters.
 *
 * @param param1 Parameter 1.
 * @param param2 Parameter 2.
 * @return A new instance of fragment BlankFragment.
 */
// TODO: Rename and change types and number of parameters
public static BlankFragment newInstance(String param1, String param2) {
    BlankFragment fragment = new BlankFragment();
    Bundle args = new Bundle();
    args.putString(ARG_PARAM1, param1);
    args.putString(ARG_PARAM2, param2);
    fragment.setArguments(args);
    return fragment;
}
public BlankFragment() {
    // Required empty public constructor
}

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    if (getArguments() != null) {
        mParam1 = getArguments().getString(ARG_PARAM1);
        mParam2 = getArguments().getString(ARG_PARAM2);
    }
    //create a option menu for the current Fragment displayed, add setHasOptionsMenu(true); to the Fragment onCreate() method
    setHasOptionsMenu(true);


}

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

    container.removeAllViews();

    //Use View "v" containing the layout and container - use v.findViewById in others
    View v = inflater.inflate(R.layout.atcsectionweb2, container, false);
    wv = (WebView) v.findViewById(R.id.webview);
    pd = (ProgressBar) v.findViewById(R.id.pBar);
    spLoadFrom = (Spinner) v.findViewById(R.id.Spinner02);
    ArrayAdapter<String> spinnerArrayAdapter = new ArrayAdapter<String>(this.getActivity(), android.R.layout.simple_spinner_item, displayName);
    spinnerArrayAdapter.setDropDownViewResource(android.R.layout.simple_dropdown_item_1line);
    spLoadFrom.setAdapter(spinnerArrayAdapter);

    SpinnerListener spListener = new SpinnerListener();

    spLoadFrom.setOnItemSelectedListener(spListener);
    // Inflate the layout for this fragment
    return v;
}

public class SpinnerListener implements AdapterView.OnItemSelectedListener {
    public SpinnerListener() {
    }

    public void onItemSelected(AdapterView<?> arg0, View arg1,
                               final int position, long arg2) {

        WebView wv = (WebView) getView().findViewById(R.id.webview);

        wv.setWebChromeClient(new WebChromeClient() {
            public void onProgressChanged(WebView view, int progress) {
                if (progress < 100
                        && pd.getVisibility() == ProgressBar.GONE) {
                    pd.setVisibility(ProgressBar.VISIBLE);
                }
                pd.setProgress(progress);
                if (progress == 100) {
                    pd.setVisibility(ProgressBar.GONE);
                }
            }
        });

        wv.getSettings().setLoadWithOverviewMode(true);
        wv.getSettings().setUseWideViewPort(true);
        wv.getSettings().setBuiltInZoomControls(true);
        wv.getSettings().setSupportZoom(true);
        wv.setWebViewClient(new WebViewClient() {
            @Override
            public boolean shouldOverrideUrlLoading(WebView view, String url) {
                view.loadUrl(url);
                return true;
            }
        });

        wv.loadUrl("file:///android_asset/" + name[position]);

    }

    public void onNothingSelected(AdapterView<?> arg0) {

    }
}

// TODO: Rename method, update argument and hook method into UI event
public void onButtonPressed(Uri uri) {
    if (mListener != null) {
        mListener.onFragmentInteraction(uri);
    }
}

//inflate the corresponding option menu by override the onCreateOptionsMenu() method
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
    menu.clear();
    Log.d("Log", "Inflating Menu");
    inflater.inflate(R.menu.blank, menu);
    super.onCreateOptionsMenu(menu, inflater);
}

//handling menu selections override the onOptionsItemSelected()
@Override
public boolean onOptionsItemSelected(MenuItem item) {

    switch (item.getItemId()) {
        case R.id.mySearch:
            Log.d("Log", "Implementing Search Method");
            search();
            return true;

        case R.id.action_settings:
            //do something
            return true;
    }
    return false;
}

@TargetApi(Build.VERSION_CODES.HONEYCOMB)
public void search() {
    if (Build.VERSION.SDK_INT >= 11) {
        if (wv != null) {
            Log.d("Log", "Search Method");
            wv.showFindDialog(null, true);
        }
    } else {
        Toast.makeText(getActivity(),"Search is only supported on Android version 4.0 and higher.",Toast.LENGTH_SHORT).show();
    }
}

@Override
public void onAttach(Activity activity) {
    super.onAttach(activity);
    try {
        mListener = (OnFragmentInteractionListener) activity;
    } catch (ClassCastException e) {
        throw new ClassCastException(activity.toString()
                + " must implement OnFragmentInteractionListener");
    }
}

@Override
public void onDetach() {
    super.onDetach();
    mListener = null;
}

/**
 * This interface must be implemented by activities that contain this
 * fragment to allow an interaction in this fragment to be communicated
 * to the activity and potentially other fragments contained in that
 * activity.
 * <p>
 * See the Android Training lesson <a href=
 * "http://developer.android.com/training/basics/fragments/communicating.html"
 * >Communicating with Other Fragments</a> for more information.
 */
public interface OnFragmentInteractionListener {
    // TODO: Update argument type and name
    public void onFragmentInteraction(Uri uri);
}

}

Android - 将showFindDialog与片段一起使用 - 没有搜索栏

0 个答案: