Example usage for android.webkit WebView clearHistory

List of usage examples for android.webkit WebView clearHistory

Introduction

In this page you can find the example usage for android.webkit WebView clearHistory.

Prototype

public void clearHistory() 

Source Link

Document

Tells this WebView to clear its internal back/forward list.

Usage

From source file:org.apache.cordova.AndroidWebViewClient.java

/**
 * Notify the host application that a page has finished loading.
 * This method is called only for main frame. When onPageFinished() is called, the rendering picture may not be updated yet.
 *
 *
 * @param view          The webview initiating the callback.
 * @param url           The url of the page.
 *///w  w  w  .j  a v a  2  s . c  o m
@Override
public void onPageFinished(WebView view, String url) {
    super.onPageFinished(view, url);
    // Ignore excessive calls, if url is not about:blank (CB-8317).
    if (!isCurrentlyLoading && !url.startsWith("about:")) {
        return;
    }
    isCurrentlyLoading = false;
    LOG.d(TAG, "onPageFinished(" + url + ")");

    /**
     * Because of a timing issue we need to clear this history in onPageFinished as well as
     * onPageStarted. However we only want to do this if the doClearHistory boolean is set to
     * true. You see when you load a url with a # in it which is common in jQuery applications
     * onPageStared is not called. Clearing the history at that point would break jQuery apps.
     */
    if (this.doClearHistory) {
        view.clearHistory();
        this.doClearHistory = false;
    }

    // Clear timeout flag
    appView.loadUrlTimeout++;

    // Broadcast message that page has loaded
    this.appView.getPluginManager().postMessage("onPageFinished", url);

    // Make app visible after 2 sec in case there was a JS error and Cordova JS never initialized correctly
    if (this.appView.getVisibility() == View.INVISIBLE) {
        Thread t = new Thread(new Runnable() {
            public void run() {
                try {
                    Thread.sleep(2000);
                    cordova.getActivity().runOnUiThread(new Runnable() {
                        public void run() {
                            appView.getPluginManager().postMessage("spinner", "stop");
                        }
                    });
                } catch (InterruptedException e) {
                }
            }
        });
        t.start();
    }

    // Shutdown if blank loaded
    if (url.equals("about:blank")) {
        appView.getPluginManager().postMessage("exit", null);
    }
}

From source file:net.basov.ticketinfo.UI.java

public void displayMainScreen(final WebView wv) {
    wv.setWebViewClient(new MyWebViewClient() {
        @Override/*from  w w w.  jav  a  2  s. c  o  m*/
        public void onPageFinished(WebView view, String url) {
            super.onPageFinished(wv, url);

            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
                view.evaluateJavascript("javascript:jreplace('" + header_json.toString() + "')", null);
                view.evaluateJavascript("javascript:jreplace('" + ticket_json.toString() + "')", null);
                view.evaluateJavascript("javascript:jreplace('" + ic_json.toString() + "')", null);
                view.evaluateJavascript("javascript:jreplace('" + dump_json.toString() + "')", null);
            } else {
                view.loadUrl("javascript:jreplace('" + header_json.toString() + "')");
                view.loadUrl("javascript:jreplace('" + ticket_json.toString() + "')");
                view.loadUrl("javascript:jreplace('" + ic_json.toString() + "')");
                view.loadUrl("javascript:jreplace('" + dump_json.toString() + "')");
            }
            wv.clearCache(true);
            wv.clearHistory();
            //TODO: remove debug
            //Log.d("hhhh", header_json.toString());
            //Log.d("tttt", ticket_json.toString());
            //Log.d("iiii", ic_json.toString());
        }
    });
    Context c = wv.getContext();
    wv.loadUrl("file:///android_asset/" + c.getString(R.string.ticket_ui_file));
}

From source file:org.golang.app.WViewActivity.java

private void initWebView(WebView webView) {

    WebSettings settings = webView.getSettings();

    settings.setJavaScriptEnabled(true);
    settings.setAllowFileAccess(true);/*w  w  w  . ja va  2s .  c o  m*/
    settings.setDomStorageEnabled(true);
    settings.setCacheMode(WebSettings.LOAD_NO_CACHE);
    settings.setLoadWithOverviewMode(true);
    settings.setUseWideViewPort(true);
    settings.setSupportZoom(true);
    // settings.setPluginsEnabled(true);
    methodInvoke(settings, "setPluginsEnabled", new Class[] { boolean.class }, new Object[] { true });
    // settings.setPluginState(PluginState.ON);
    methodInvoke(settings, "setPluginState", new Class[] { PluginState.class },
            new Object[] { PluginState.ON });
    // settings.setPluginsEnabled(true);
    methodInvoke(settings, "setPluginsEnabled", new Class[] { boolean.class }, new Object[] { true });
    // settings.setAllowUniversalAccessFromFileURLs(true);
    methodInvoke(settings, "setAllowUniversalAccessFromFileURLs", new Class[] { boolean.class },
            new Object[] { true });
    // settings.setAllowFileAccessFromFileURLs(true);
    methodInvoke(settings, "setAllowFileAccessFromFileURLs", new Class[] { boolean.class },
            new Object[] { true });

    webView.setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY);
    webView.clearHistory();
    webView.clearFormData();
    webView.clearCache(true);

    webView.setWebChromeClient(new MyWebChromeClient());
    // webView.setDownloadListener(downloadListener);
}

From source file:net.basov.ticketinfo.UI.java

public void displayWelcomeScreen(final WebView wv) {
    SharedPreferences defSharedPref = PreferenceManager.getDefaultSharedPreferences(wv.getContext());

    setWelcome("s_lang", defSharedPref.getString(wv.getContext().getString(R.string.pk_app_lang),
            wv.getContext().getString(R.string.pref_lang_def)));
    if (defSharedPref.getBoolean(wv.getContext().getString(R.string.pk_transliterate_flag), false)) {
        setWelcome("s_translit", "<input type=\"checkbox\" disabled=\"disabled\" checked=\"checked\">");

    } else {/*from   ww  w . jav  a 2  s  .  co m*/
        setWelcome("s_translit", "<input type=\"checkbox\" disabled=\"disabled\">");
    }
    if (defSharedPref.getBoolean(wv.getContext().getString(R.string.pk_send_platform_info), true)) {
        setWelcome("s_sendinfo", "<input type=\"checkbox\" disabled=\"disabled\" checked=\"checked\">");
    } else {
        setWelcome("s_sendinfo", "<input type=\"checkbox\" disabled=\"disabled\">");
    }
    if (defSharedPref.getBoolean(wv.getContext().getString(R.string.pk_use_view_directory), false)) {
        setWelcome("s_use_view_directory",
                "<input type=\"checkbox\" disabled=\"disabled\" checked=\"checked\">");
    } else {
        setWelcome("s_use_view_directory", "<input type=\"checkbox\" disabled=\"disabled\">");
    }

    wv.setWebViewClient(new MyWebViewClient() {
        @Override
        public void onPageFinished(WebView view, String url) {
            super.onPageFinished(wv, url);
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
                view.evaluateJavascript("javascript:jreplace('" + welcome_json.toString() + "')", null);
            } else {
                view.loadUrl("javascript:jreplace('" + welcome_json.toString() + "')", null);
            }
            wv.clearCache(true);
            wv.clearHistory();
        }
    });
    Context c = wv.getContext();
    wv.loadUrl("file:///android_asset/" + c.getString(R.string.welcome_ui_file));
}

From source file:com.ibuildapp.romanblack.WebPlugin.WebPlugin.java

@Override
public void create() {
    try {//from   www .j av a2 s  .  c  o m

        setContentView(R.layout.romanblack_html_main);
        root = (FrameLayout) findViewById(R.id.romanblack_root_layout);
        webView = new ObservableWebView(this);
        webView.setLayoutParams(new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT,
                RelativeLayout.LayoutParams.MATCH_PARENT));
        root.addView(webView);

        webView.setHorizontalScrollBarEnabled(false);
        setTitle("HTML");

        Intent currentIntent = getIntent();
        Bundle store = currentIntent.getExtras();
        widget = (Widget) store.getSerializable("Widget");
        if (widget == null) {
            handler.sendEmptyMessageDelayed(INITIALIZATION_FAILED, 100);
            return;
        }
        appName = widget.getAppName();

        if (widget.getPluginXmlData().length() == 0) {
            if (currentIntent.getStringExtra("WidgetFile").length() == 0) {
                handler.sendEmptyMessageDelayed(INITIALIZATION_FAILED, 100);
                return;
            }
        }

        if (widget.getTitle() != null && widget.getTitle().length() > 0) {
            setTopBarTitle(widget.getTitle());
        } else {
            setTopBarTitle(getResources().getString(R.string.romanblack_html_web));
        }

        currentUrl = (String) getSession();
        if (currentUrl == null) {
            currentUrl = "";
        }

        ConnectivityManager cm = (ConnectivityManager) this.getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo ni = cm.getActiveNetworkInfo();
        if (ni != null && ni.isConnectedOrConnecting()) {
            isOnline = true;
        }

        // topbar initialization
        setTopBarLeftButtonText(getString(R.string.common_home_upper), true, new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                onBackPressed();
            }
        });

        if (isOnline) {
            webView.getSettings().setJavaScriptEnabled(true);
        }

        webView.setScrollBarStyle(WebView.SCROLLBARS_OUTSIDE_OVERLAY);
        webView.getSettings().setGeolocationEnabled(true);
        webView.getSettings().setAllowFileAccess(true);
        webView.getSettings().setAppCacheEnabled(true);
        webView.getSettings().setCacheMode(WebSettings.LOAD_DEFAULT);
        webView.getSettings().setBuiltInZoomControls(true);
        webView.getSettings().setDomStorageEnabled(true);
        webView.getSettings().setUseWideViewPort(false);
        webView.getSettings().setSavePassword(false);
        webView.clearHistory();
        webView.invalidate();

        if (Build.VERSION.SDK_INT >= 19) {
        }
        webView.getSettings().setUserAgentString(
                "Mozilla/5.0 (Linux; U; Android 2.2.1; en-us; Nexus One Build/FRG83) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1");

        webView.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                v.invalidate();

                switch (event.getAction()) {
                case MotionEvent.ACTION_DOWN: {
                }
                    break;
                case MotionEvent.ACTION_UP: {
                    if (!v.hasFocus()) {
                        v.requestFocus();
                    }
                }
                    break;

                case MotionEvent.ACTION_MOVE: {
                }
                    break;

                }
                return false;
            }
        });

        webView.setBackgroundColor(Color.WHITE);
        try {
            if (widget.getBackgroundColor() != Color.TRANSPARENT) {
                webView.setBackgroundColor(widget.getBackgroundColor());
            }
        } catch (IllegalArgumentException e) {
        }

        webView.setDownloadListener(new DownloadListener() {
            @Override
            public void onDownloadStart(String url, String userAgent, String contentDisposition,
                    String mimetype, long contentLength) {
                Intent intent = new Intent(Intent.ACTION_VIEW);
                intent.setData(Uri.parse(url));
                startActivity(intent);
            }
        });

        webView.setWebChromeClient(new WebChromeClient() {

            FrameLayout.LayoutParams LayoutParameters = new FrameLayout.LayoutParams(
                    FrameLayout.LayoutParams.MATCH_PARENT, FrameLayout.LayoutParams.MATCH_PARENT);

            @Override
            public void onGeolocationPermissionsShowPrompt(final String origin,
                    final GeolocationPermissions.Callback callback) {
                AlertDialog.Builder builder = new AlertDialog.Builder(WebPlugin.this);
                builder.setTitle(R.string.location_dialog_title);
                builder.setMessage(R.string.location_dialog_description);
                builder.setCancelable(true);

                builder.setPositiveButton(R.string.location_dialog_allow,
                        new DialogInterface.OnClickListener() {
                            public void onClick(DialogInterface dialog, int id) {
                                callback.invoke(origin, true, false);
                            }
                        });

                builder.setNegativeButton(R.string.location_dialog_not_allow,
                        new DialogInterface.OnClickListener() {
                            public void onClick(DialogInterface dialog, int id) {
                                callback.invoke(origin, false, false);
                            }
                        });

                AlertDialog alert = builder.create();
                alert.show();
            }

            @Override
            public void onShowCustomView(View view, WebChromeClient.CustomViewCallback callback) {
                if (customView != null) {
                    customViewCallback.onCustomViewHidden();
                    return;
                }

                view.setBackgroundColor(Color.BLACK);
                view.setLayoutParams(LayoutParameters);
                root.addView(view);
                customView = view;
                customViewCallback = callback;
                webView.setVisibility(View.GONE);
            }

            @Override
            public void onHideCustomView() {
                if (customView == null) {
                    return;
                } else {
                    closeFullScreenVideo();
                }
            }

            public void openFileChooser(ValueCallback<Uri> uploadMsg) {

                mUploadMessage = uploadMsg;
                Intent i = new Intent(Intent.ACTION_GET_CONTENT);//Intent.ACTION_GET_CONTENT);
                i.addCategory(Intent.CATEGORY_OPENABLE);
                i.setType("image/*");
                isMedia = true;
                startActivityForResult(Intent.createChooser(i, "File Chooser"), FILECHOOSER_RESULTCODE);

            }

            // For Android 3.0+
            public void openFileChooser(ValueCallback uploadMsg, String acceptType) {
                mUploadMessage = uploadMsg;
                Intent i = new Intent(Intent.ACTION_GET_CONTENT);
                i.addCategory(Intent.CATEGORY_OPENABLE);
                i.setType("*/*");
                startActivityForResult(Intent.createChooser(i, "File Browser"), FILECHOOSER_RESULTCODE);
            }

            //For Android 4.1
            public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType, String capture) {
                mUploadMessage = uploadMsg;
                Intent i = new Intent(Intent.ACTION_GET_CONTENT);
                i.addCategory(Intent.CATEGORY_OPENABLE);
                isMedia = true;
                i.setType("image/*");
                startActivityForResult(Intent.createChooser(i, "File Chooser"), FILECHOOSER_RESULTCODE);

            }

            @Override
            public boolean onShowFileChooser(WebView webView, ValueCallback<Uri[]> filePathCallback,
                    FileChooserParams fileChooserParams) {
                isV21 = true;
                mUploadMessageV21 = filePathCallback;
                Intent i = new Intent(Intent.ACTION_GET_CONTENT);
                i.addCategory(Intent.CATEGORY_OPENABLE);
                i.setType("image/*");
                startActivityForResult(Intent.createChooser(i, "File Chooser"), FILECHOOSER_RESULTCODE);
                return true;
            }

            @Override
            public void onReceivedTouchIconUrl(WebView view, String url, boolean precomposed) {
                super.onReceivedTouchIconUrl(view, url, precomposed);
            }
        });

        webView.setWebViewClient(new WebViewClient() {
            @Override
            public void onPageStarted(WebView view, String url, Bitmap favicon) {
                super.onPageStarted(view, url, favicon);

                if (state == states.EMPTY) {
                    currentUrl = url;
                    setSession(currentUrl);
                    state = states.LOAD_START;
                    handler.sendEmptyMessage(SHOW_PROGRESS);
                }
            }

            @Override
            public void onLoadResource(WebView view, String url) {

                if (!alreadyLoaded
                        && (url.startsWith("http://www.youtube.com/get_video_info?")
                                || url.startsWith("https://www.youtube.com/get_video_info?"))
                        && Build.VERSION.SDK_INT < 11) {
                    try {
                        String path = url.contains("https://www.youtube.com/get_video_info?")
                                ? url.replace("https://www.youtube.com/get_video_info?", "")
                                : url.replace("http://www.youtube.com/get_video_info?", "");

                        String[] parqamValuePairs = path.split("&");

                        String videoId = null;

                        for (String pair : parqamValuePairs) {
                            if (pair.startsWith("video_id")) {
                                videoId = pair.split("=")[1];
                                break;
                            }
                        }

                        if (videoId != null) {
                            startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.youtube.com"))
                                    .setData(Uri.parse("http://www.youtube.com/watch?v=" + videoId)));
                            needRefresh = true;
                            alreadyLoaded = !alreadyLoaded;

                            return;
                        }
                    } catch (Exception ex) {
                    }
                } else {
                    super.onLoadResource(view, url);
                }
            }

            @Override
            public void onPageFinished(WebView view, String url) {
                if (hideProgress) {
                    if (TextUtils.isEmpty(WebPlugin.this.url)) {
                        state = states.LOAD_COMPLETE;
                        handler.sendEmptyMessage(HIDE_PROGRESS);
                        super.onPageFinished(view, url);
                    } else {
                        view.loadUrl("javascript:(function(){" + "l=document.getElementById('link');"
                                + "e=document.createEvent('HTMLEvents');" + "e.initEvent('click',true,true);"
                                + "l.dispatchEvent(e);" + "})()");
                        hideProgress = false;
                    }
                } else {
                    state = states.LOAD_COMPLETE;
                    handler.sendEmptyMessage(HIDE_PROGRESS);
                    super.onPageFinished(view, url);
                }
            }

            @Override
            public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
                if (errorCode == WebViewClient.ERROR_BAD_URL) {
                    startActivityForResult(new Intent(Intent.ACTION_VIEW, Uri.parse(url)),
                            DOWNLOAD_REQUEST_CODE);
                }
            }

            @Override
            public void onReceivedSslError(WebView view, final SslErrorHandler handler, SslError error) {
                final AlertDialog.Builder builder = new AlertDialog.Builder(WebPlugin.this);
                builder.setMessage(R.string.notification_error_ssl_cert_invalid);
                builder.setPositiveButton(WebPlugin.this.getResources().getString(R.string.wp_continue),
                        new DialogInterface.OnClickListener() {
                            @Override
                            public void onClick(DialogInterface dialog, int which) {
                                handler.proceed();
                            }
                        });
                builder.setNegativeButton(WebPlugin.this.getResources().getString(R.string.wp_cancel),
                        new DialogInterface.OnClickListener() {
                            @Override
                            public void onClick(DialogInterface dialog, int which) {
                                handler.cancel();
                            }
                        });
                final AlertDialog dialog = builder.create();
                dialog.show();
            }

            @Override
            public void onFormResubmission(WebView view, Message dontResend, Message resend) {
                super.onFormResubmission(view, dontResend, resend);
            }

            @Override
            public WebResourceResponse shouldInterceptRequest(WebView view, WebResourceRequest request) {
                return super.shouldInterceptRequest(view, request);
            }

            @Override
            public boolean shouldOverrideUrlLoading(WebView view, String url) {
                try {

                    if (url.contains("youtube.com/watch")) {
                        if (Build.VERSION.SDK_INT < 11) {
                            try {
                                startActivity(
                                        new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.youtube.com"))
                                                .setData(Uri.parse(url)));
                                return true;
                            } catch (Exception ex) {
                                return false;
                            }
                        } else {
                            return false;
                        }
                    } else if (url.contains("paypal.com")) {
                        if (url.contains("&bn=ibuildapp_SP")) {
                            return false;
                        } else {
                            url = url + "&bn=ibuildapp_SP";

                            webView.loadUrl(url);

                            return true;
                        }
                    } else if (url.contains("sms:")) {
                        try {
                            Intent smsIntent = new Intent(Intent.ACTION_VIEW);
                            smsIntent.setData(Uri.parse(url));
                            startActivity(smsIntent);
                            return true;
                        } catch (Exception ex) {
                            Log.e("", ex.getMessage());
                            return false;
                        }
                    } else if (url.contains("tel:")) {
                        Intent callIntent = new Intent(Intent.ACTION_CALL);
                        callIntent.setData(Uri.parse(url));
                        startActivity(callIntent);
                        return true;
                    } else if (url.contains("mailto:")) {
                        MailTo mailTo = MailTo.parse(url);

                        Intent emailIntent = new Intent(android.content.Intent.ACTION_SEND);
                        emailIntent.setType("plain/text");
                        emailIntent.putExtra(android.content.Intent.EXTRA_EMAIL,
                                new String[] { mailTo.getTo() });

                        emailIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, mailTo.getSubject());
                        emailIntent.putExtra(android.content.Intent.EXTRA_TEXT, mailTo.getBody());
                        WebPlugin.this.startActivity(Intent.createChooser(emailIntent,
                                getString(R.string.romanblack_html_send_email)));
                        return true;
                    } else if (url.contains("rtsp:")) {
                        Uri address = Uri.parse(url);
                        Intent intent = new Intent(Intent.ACTION_VIEW, address);

                        final PackageManager pm = getPackageManager();
                        final List<ResolveInfo> matches = pm.queryIntentActivities(intent, 0);
                        if (matches.size() > 0) {
                            startActivity(intent);
                        } else {
                            Toast.makeText(WebPlugin.this, getString(R.string.romanblack_html_no_video_player),
                                    Toast.LENGTH_SHORT).show();
                        }

                        return true;
                    } else if (url.startsWith("intent:") || url.startsWith("market:")
                            || url.startsWith("col-g2m-2:")) {
                        Intent it = new Intent();
                        it.setData(Uri.parse(url));
                        startActivity(it);

                        return true;
                    } else if (url.contains("//play.google.com/")) {
                        startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(url)));
                        return true;
                    } else {
                        if (url.contains("ibuildapp.com-1915109")) {
                            String param = Uri.parse(url).getQueryParameter("widget");
                            finish();
                            if (param != null && param.equals("1001"))
                                com.appbuilder.sdk.android.Statics.launchMain();
                            else if (param != null && !"".equals(param)) {
                                View.OnClickListener widget = Statics.linkWidgets.get(Integer.valueOf(param));
                                if (widget != null)
                                    widget.onClick(view);
                            }
                            return false;
                        }

                        currentUrl = url;
                        setSession(currentUrl);
                        if (!isOnline) {
                            handler.sendEmptyMessage(HIDE_PROGRESS);
                            handler.sendEmptyMessage(STOP_LOADING);
                        } else {
                            String pageType = "application/html";
                            if (!url.contains("vk.com")) {
                                getPageType(url);
                            }
                            if (pageType.contains("application") && !pageType.contains("html")
                                    && !pageType.contains("xml")) {
                                startActivityForResult(new Intent(Intent.ACTION_VIEW, Uri.parse(url)),
                                        DOWNLOAD_REQUEST_CODE);
                                return super.shouldOverrideUrlLoading(view, url);
                            } else {
                                view.getSettings().setLoadWithOverviewMode(true);
                                view.getSettings().setUseWideViewPort(true);
                                view.setBackgroundColor(Color.WHITE);
                            }
                        }
                        return false;
                    }

                } catch (Exception ex) { // Error Logging
                    return false;
                }
            }
        });

        handler.sendEmptyMessage(SHOW_PROGRESS);

        new Thread() {
            @Override
            public void run() {

                EntityParser parser;
                if (widget.getPluginXmlData() != null) {
                    if (widget.getPluginXmlData().length() > 0) {
                        parser = new EntityParser(widget.getPluginXmlData());
                    } else {
                        String xmlData = readXmlFromFile(getIntent().getStringExtra("WidgetFile"));
                        parser = new EntityParser(xmlData);
                    }
                } else {
                    String xmlData = readXmlFromFile(getIntent().getStringExtra("WidgetFile"));
                    parser = new EntityParser(xmlData);
                }

                parser.parse();

                url = parser.getUrl();
                html = parser.getHtml();

                if (url.length() > 0 && !isOnline) {
                    handler.sendEmptyMessage(NEED_INTERNET_CONNECTION);
                } else {
                    if (isOnline) {
                    } else {
                        if (html.length() == 0) {
                        }
                    }
                    if (html.length() > 0 || url.length() > 0) {
                        handler.sendEmptyMessageDelayed(SHOW_HTML, 700);
                    } else {
                        handler.sendEmptyMessage(HIDE_PROGRESS);
                        handler.sendEmptyMessage(INITIALIZATION_FAILED);
                    }
                }
            }
        }.start();

    } catch (Exception ex) {
    }
}