WebView添加Ｔitle使用隐藏函数setEmbeddedTitleBar的方法

package org.tint.controllers;import java.lang.reflect.InvocationTargetException;import java.lang.reflect.Method;import java.util.ArrayList;import java.util.List;import org.tint.R;import org.tint.adapters.UrlSuggestionCursorAdapter;import org.tint.model.WebViewContainer;import org.tint.ui.activities.MainActivity;import org.tint.ui.components.CustomWebChromeClient;import org.tint.ui.components.CustomWebView;import org.tint.ui.components.CustomWebViewClient;import org.tint.utils.Constants;import android.content.Context;import android.content.Intent;import android.content.SharedPreferences;import android.content.SharedPreferences.OnSharedPreferenceChangeListener;import android.database.Cursor;import android.preference.PreferenceManager;import android.provider.Browser;import android.util.Log;import android.view.ContextMenu;import android.view.LayoutInflater;import android.view.Menu;import android.view.MenuItem;import android.view.View;import android.view.ContextMenu.ContextMenuInfo;import android.view.View.OnClickListener;import android.view.View.OnCreateContextMenuListener;import android.view.View.OnFocusChangeListener;import android.view.View.OnTouchListener;import android.webkit.WebView;import android.webkit.WebView.HitTestResult;import android.widget.AutoCompleteTextView;import android.widget.FilterQueryProvider;import android.widget.ImageButton;import android.widget.RelativeLayout;import android.widget.ViewFlipper;import android.widget.SimpleCursorAdapter.CursorToStringConverter;/** * Controller managing tabs. * Responsible for tabs creation, selection, deletion. */public final class TabsController {public static final int TAB_CONTEXT_MENU_OPEN = Menu.FIRST + 10;public static final int TAB_CONTEXT_MENU_OPEN_IN_NEW_TAB = Menu.FIRST + 11;private List<WebViewContainer> mWebViewList;private MainActivity mMainActivity;private ViewFlipper mWebViewsContainer;private OnTouchListener mTouchListener;private LayoutInflater mInflater = null;private Method mWebViewSetEmbeddedTitleBar = null;private OnSharedPreferenceChangeListener mPreferenceChangeListener;/** * Holder for singleton implementation. */private static final class TabsControllerHolder {private static final TabsController INSTANCE = new TabsController();/** * Private Constructor. */private TabsControllerHolder() { }}/** * Get the unique instance of the Controller. * @return The instance of the Controller */public static TabsController getInstance() {return TabsControllerHolder.INSTANCE;}/** * Private Constructor. */private TabsController() {mWebViewList = new ArrayList<WebViewContainer>();}/** * Event when a preference has changed. Reinitialize all WebViews, to update them with new preferences. */private void onPreferencesChanged() {for (WebViewContainer view : mWebViewList) {view.getWebView().initializeOptions();}}/** * Initialize the Controller. * @param activity The main activity. * @param touchListener The TouchListener to be set on each created WebView. * @param webViewContainer The main ViewFlipper, containing all the WebView. */public void initialize(MainActivity activity, OnTouchListener touchListener, ViewFlipper webViewContainer) {mMainActivity = activity;mWebViewsContainer = webViewContainer;mTouchListener = touchListener;mInflater = (LayoutInflater) mMainActivity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);mPreferenceChangeListener = new OnSharedPreferenceChangeListener() {@Overridepublic void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {onPreferencesChanged();}};PreferenceManager.getDefaultSharedPreferences(mMainActivity).registerOnSharedPreferenceChangeListener(mPreferenceChangeListener);try {mWebViewSetEmbeddedTitleBar = WebView.class.getMethod("setEmbeddedTitleBar", new Class[] { View.class });} catch (SecurityException e) {mWebViewSetEmbeddedTitleBar = null;Log.e("TabsController: Unable to get setEmbeddedTitleBar method: SecurityException.", e.getMessage());e.printStackTrace();} catch (NoSuchMethodException e) {mWebViewSetEmbeddedTitleBar = null;Log.e("TabsController: Unable to get setEmbeddedTitleBar method: NoSuchMethodException.", e.getMessage());e.printStackTrace();}}/** * Call the WebView method setEmbeddedTitleBar throught reflection. * @param webView The WebView. * @param view The method parameter. */private void callSetEmbeddedTitleBar(WebView webView, View view) {try {mWebViewSetEmbeddedTitleBar.invoke(webView, view);} catch (IllegalArgumentException e) {Log.e("TabsController: Unable to call setEmbeddedTitleBar method: IllegalArgumentException.", e.getMessage());e.printStackTrace();} catch (IllegalAccessException e) {Log.e("TabsController: Unable to call setEmbeddedTitleBar method: IllegalAccessException.", e.getMessage());e.printStackTrace();} catch (InvocationTargetException e) {Log.e("TabsController: Unable to call setEmbeddedTitleBar method: InvocationTargetException.", e.getMessage());e.printStackTrace();}}/** * Add a new tab at the given position, and navigate to the given url. * @param position The position to insert the tab. * @param url The url to navigate to. * @return The new tab index. */public int addTab(int position, String url) {RelativeLayout view = (RelativeLayout) mInflater.inflate(R.layout.webview, mWebViewsContainer, false);final CustomWebView webView = (CustomWebView) view.findViewById(R.id.webview);View titleBar = mInflater.inflate(R.layout.title_bar, view, false);callSetEmbeddedTitleBar(webView, titleBar);final AutoCompleteTextView urlView = (AutoCompleteTextView) titleBar.findViewById(R.id.UrlText);int insertionIndex = addWebViewContainer(position, new WebViewContainer(view, webView));webView.setWebChromeClient(new CustomWebChromeClient(mMainActivity, view));        webView.setWebViewClient(new CustomWebViewClient(mMainActivity, view));                webView.setOnTouchListener(mTouchListener);                webView.setOnCreateContextMenuListener(new OnCreateContextMenuListener() {@Overridepublic void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {HitTestResult result = ((WebView) v).getHitTestResult();int resultType = result.getType();if ((resultType == HitTestResult.ANCHOR_TYPE) ||(resultType == HitTestResult.IMAGE_ANCHOR_TYPE) ||(resultType == HitTestResult.SRC_ANCHOR_TYPE) ||(resultType == HitTestResult.SRC_IMAGE_ANCHOR_TYPE)) {Intent i = new Intent();i.putExtra(Constants.EXTRA_ID_URL, result.getExtra());MenuItem item = menu.add(0, TAB_CONTEXT_MENU_OPEN, 0, R.string.ContextMenu_Open);item.setIntent(i);item = menu.add(0, TAB_CONTEXT_MENU_OPEN_IN_NEW_TAB, 0, R.string.ContextMenu_OpenInNewTab);item.setIntent(i);//item = menu.add(0, CONTEXT_MENU_COPY, 0, R.string.Main_MenuCopyLinkUrl);//item.setIntent(i);////item = menu.add(0, CONTEXT_MENU_DOWNLOAD, 0, R.string.Main_MenuDownload);//item.setIntent(i);menu.setHeaderTitle(result.getExtra());}}});                urlView.setOnFocusChangeListener(new OnFocusChangeListener() {@Overridepublic void onFocusChange(View arg0, boolean hasFocus) {// Select all when focus gained.                if (hasFocus) {                urlView.setSelection(0, urlView.getText().length());                }}});                urlView.setCompoundDrawablePadding(5);                String[] from = new String[] { Browser.BookmarkColumns.TITLE, Browser.BookmarkColumns.URL };        int[] to = new int[] {R.id.AutocompleteTitle, R.id.AutocompleteUrl};                UrlSuggestionCursorAdapter suggestionAdapter = new UrlSuggestionCursorAdapter(mMainActivity, R.layout.url_autocomplete_line, null, from, to);        suggestionAdapter.setCursorToStringConverter(new CursorToStringConverter() {@Overridepublic CharSequence convertToString(Cursor cursor) {String aColumnString = cursor.getString(cursor.getColumnIndex(Browser.BookmarkColumns.URL));                return aColumnString;}});                suggestionAdapter.setFilterQueryProvider(new FilterQueryProvider() {@Overridepublic Cursor runQuery(CharSequence constraint) {if ((constraint != null) &&(constraint.length() > 0)) {return BookmarksHistoryController.getInstance().getSuggestion(mMainActivity, constraint.toString());}return null;}});                urlView.setThreshold(1);        urlView.setAdapter(suggestionAdapter);                ImageButton goBtn = (ImageButton) titleBar.findViewById(R.id.GoBtn);                goBtn.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {webView.loadUrl(urlView.getText().toString());}});                if ((url != null) &&        (url.length() > 0)) {        webView.loadUrl(url);        }                        if (position >= 0) {        mWebViewsContainer.addView(view, position);        } else {        mWebViewsContainer.addView(view);        }                return insertionIndex;}/** * Remove the tab at the given index. * @param index The index of the tab to remove. */public void removeTab(int index) {mWebViewList.remove(index);mWebViewsContainer.removeViewAt(index);}/** * Get the list of WebViewContainer, e.g. the association of a WebView and its parent layout. * @return The list of WebViewContainer. * @see WebViewContainer */public List<WebViewContainer> getWebViewContainers() {return mWebViewList;}/** * Clear the form data on all existants WebView. */public void clearFormData() {for (WebViewContainer view : mWebViewList) {view.getWebView().clearFormData();}}/** * Clear the cache. */public void clearCache() {if (!mWebViewList.isEmpty()) {// Clear cache only need to be done on one WebView. See http://developer.android.com/reference/android/webkit/WebView.html#clearCache%28boolean%29mWebViewList.get(0).getWebView().clearCache(true);}}/** * Add the given WebViewContainer at the given position. * @param position The insertion position. Can be < 0. If so, the insertion will be at the end of the list. * @param webViewContainer The WebViewContainer to add. * @return The index of the insertion. * @see WebViewContainer */private int addWebViewContainer(int position, WebViewContainer webViewContainer) {if (position >= 0) {mWebViewList.add(position, webViewContainer);} else {mWebViewList.add(webViewContainer);}return mWebViewList.indexOf(webViewContainer);}}