Example usage for android.webkit WebView goBack

List of usage examples for android.webkit WebView goBack

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  3. android
  4. android.webkit.*
  5. WebView
  6. goBack

Introduction

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

Prototype

public void goBack()

Source Link

Document

Goes back in the history of this WebView.

Usage

From source file:de.baumann.browser.helper.helper_webView.java

private static void webView_Touch(final Activity from, final WebView webView) {

    webView.setOnTouchListener(new class_OnSwipeTouchListener_webview(from) {
        public void onSwipeRight() {
            if (webView.canGoBack()) {
                webView.goBack();
            } else {
                Snackbar.make(webView, R.string.toast_back, Snackbar.LENGTH_SHORT).show();
            }/*from   w  w w .java  2  s  .co m*/
        }

        public void onSwipeLeft() {
            if (webView.canGoForward()) {
                webView.goForward();
            } else {
                Snackbar.make(webView, R.string.toast_forward, Snackbar.LENGTH_SHORT).show();
            }
        }
    });
}

From source file:com.macleod2486.utnow.MainActivity.java

public void back(View view) {
    WebView utdirect = (WebView) findViewById(R.id.webView);
    if (utdirect.canGoBack())
        utdirect.goBack();
}

From source file:com.inha.stickyonpage.MainActivity.java

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
    if (keyCode == KeyEvent.KEYCODE_BACK) {
        if (getSupportFragmentManager().findFragmentByTag("BrowsingWebView") != null) {
            if (mDrawerLayout.isDrawerOpen(Gravity.RIGHT) || mDrawerLayout.isDrawerOpen(Gravity.LEFT)) {
                mDrawerLayout.closeDrawer(Gravity.RIGHT);
                mDrawerLayout.closeDrawer(Gravity.LEFT);
                return false;
            } else {
                WebView mWebView = (WebView) findViewById(R.id.webView1);
                if (mWebView.canGoBack()) {
                    mWebView.goBack();
                } else {
                    ActionBar mActionBar = getActionBar();
                    mActionBar.setCustomView(null);
                    mActionBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_HOME);
                    FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
                    RecentStickyView stickyFragment = new RecentStickyView();
                    ft.replace(R.id.drawer_main, stickyFragment, "RecentStickyView");
                    ft.commit();/*w ww.j  a v  a2  s  . c  om*/
                }
                return false;
            }
        } else if (getSupportFragmentManager().getBackStackEntryCount() == 0) {
            if (!mFlag) {
                Toast.makeText(this, "''?  ?  ?.",
                        Toast.LENGTH_SHORT).show();
                mFlag = true;
                mHandler.sendEmptyMessageDelayed(0, 2000);
                return false;
            } else {
                finish();
            }
        }
    }
    return super.onKeyDown(keyCode, event);
}

From source file:com.wordpress.jftreading.BaseFragmentWebView.java

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    fragmentView = inflater.inflate(R.layout.webview_fragment, container, false);
    browser = (WebView) fragmentView.findViewById(R.id.webkit);
    browser.getSettings().setJavaScriptEnabled(true);
    browser.setWebViewClient(new WebViewClient() {
        @Override/*www  .j  a v a 2  s  .c  om*/
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            if (!networkIsUp() && !offlinePage) {
                view.loadUrl(getErrorPage());
                return true;
            }
            if (url.startsWith("http:") || url.startsWith("https:") || url.startsWith("file:")) {
                return false;
            }
            Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
            startActivity(intent);
            return true;
        }
    });
    browser.setWebChromeClient(new WebChromeClient() {
        @Override
        public boolean onJsConfirm(WebView view, String url, String message, JsResult result) {
            return super.onJsConfirm(view, url, message, result);
        }
    });
    browser.setOnKeyListener(new OnKeyListener() {

        @Override
        public boolean onKey(View v, int keyCode, KeyEvent event) {
            if (event.getAction() == KeyEvent.ACTION_DOWN) {
                WebView webView = (WebView) v;

                switch (keyCode) {
                case KeyEvent.KEYCODE_BACK:
                    if (webView.canGoBack()) {
                        webView.goBack();
                        return true;
                    }
                    break;
                }
            }
            return false;
        }
    });
    browser.setDownloadListener(new DownloadListener() {

        @Override
        public void onDownloadStart(String url, String userAgent, String contentDisposition, String mimetype,
                long contentLength) {
            Uri uri = Uri.parse(url);
            Intent intent = new Intent(Intent.ACTION_VIEW, uri);
            startActivity(intent);
        }
    });
    browser.addJavascriptInterface(new MyJavascriptInterface(), "Android");
    browser.loadUrl(linkSelector());
    return fragmentView;
}

From source file:com.cliff.comichelper.MainActivity.java

@Override
public void onBackPressed() {
    WebView webView = currentFragment.getWebView();
    if (webView.canGoBack())
        webView.goBack();
    else/*from ww w. j ava 2s .c  o  m*/
        super.onBackPressed();
}

From source file:com.facebook.react.views.webview.ReactWebViewManager.java

@Override
public void receiveCommand(WebView root, int commandId, @Nullable ReadableArray args) {
    switch (commandId) {
    case COMMAND_GO_BACK:
        root.goBack();
        break;//ww w . j  a  va  2 s.c o  m
    case COMMAND_GO_FORWARD:
        root.goForward();
        break;
    case COMMAND_RELOAD:
        root.reload();
        break;
    case COMMAND_STOP_LOADING:
        root.stopLoading();
        break;
    case COMMAND_POST_MESSAGE:
        try {
            JSONObject eventInitDict = new JSONObject();
            eventInitDict.put("data", args.getString(0));
            root.loadUrl("javascript:(function () {" + "var event;" + "var data = " + eventInitDict.toString()
                    + ";" + "try {" + "event = new MessageEvent('message', data);" + "} catch (e) {"
                    + "event = document.createEvent('MessageEvent');"
                    + "event.initMessageEvent('message', true, true, data.data, data.origin, data.lastEventId, data.source);"
                    + "}" + "document.dispatchEvent(event);" + "})();");
        } catch (JSONException e) {
            throw new RuntimeException(e);
        }
        break;
    case COMMAND_INJECT_JAVASCRIPT:
        root.loadUrl("javascript:" + args.getString(0));
        break;
    }
}

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

/**
 * Report an error to the host application. These errors are unrecoverable (i.e. the main resource is unavailable).
 * The errorCode parameter corresponds to one of the ERROR_* constants.
 *
 * @param view          The WebView that is initiating the callback.
 * @param errorCode     The error code corresponding to an ERROR_* value.
 * @param description   A String describing the error.
 * @param failingUrl    The url that failed to load.
 *//*  www.  j  av  a 2s  .  co m*/
@Override
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
    // Ignore error due to stopLoading().
    if (!isCurrentlyLoading) {
        return;
    }
    LOG.d(TAG, "CordovaWebViewClient.onReceivedError: Error code=%s Description=%s URL=%s", errorCode,
            description, failingUrl);

    // Clear timeout flag
    appView.loadUrlTimeout++;

    // If this is a "Protocol Not Supported" error, then revert to the previous
    // page. If there was no previous page, then punt. The application's config
    // is likely incorrect (start page set to sms: or something like that)
    if (errorCode == WebViewClient.ERROR_UNSUPPORTED_SCHEME) {
        if (view.canGoBack()) {
            view.goBack();
            return;
        } else {
            super.onReceivedError(view, errorCode, description, failingUrl);
        }
    }

    // Handle other errors by passing them to the webview in JS
    JSONObject data = new JSONObject();
    try {
        data.put("errorCode", errorCode);
        data.put("description", description);
        data.put("url", failingUrl);
    } catch (JSONException e) {
        e.printStackTrace();
    }
    this.appView.getPluginManager().postMessage("onReceivedError", data);
}

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

/**
 * Report an error to the host application. These errors are unrecoverable (i.e. the main resource is unavailable).
 * The errorCode parameter corresponds to one of the ERROR_* constants.
 *
 * @param view          The WebView that is initiating the callback.
 * @param errorCode     The error code corresponding to an ERROR_* value.
 * @param description   A String describing the error.
 * @param failingUrl    The url that failed to load.
 *//*from   w  ww  . j a  va 2 s  .c  om*/
@Override
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
    // Ignore error due to stopLoading().
    if (!isCurrentlyLoading) {
        return;
    }
    LOG.d(TAG, "CordovaWebViewClient.onReceivedError: Error code=%s Description=%s URL=%s", errorCode,
            description, failingUrl);

    // Clear timeout flag
    this.appView.loadUrlTimeout++;

    // If this is a "Protocol Not Supported" error, then revert to the previous
    // page. If there was no previous page, then punt. The application's config
    // is likely incorrect (start page set to sms: or something like that)
    if (errorCode == WebViewClient.ERROR_UNSUPPORTED_SCHEME) {
        if (view.canGoBack()) {
            view.goBack();
            return;
        } else {
            super.onReceivedError(view, errorCode, description, failingUrl);
        }
    }

    // Handle other errors by passing them to the webview in JS
    JSONObject data = new JSONObject();
    try {
        data.put("errorCode", errorCode);
        data.put("description", description);
        data.put("url", failingUrl);
    } catch (JSONException e) {
        e.printStackTrace();
    }
    this.appView.postMessage("onReceivedError", data);
}

From source file:com.stoutner.privacybrowser.MainWebViewActivity.java

@Override
public void onBackPressed() {
    final WebView mainWebView = (WebView) findViewById(R.id.mainWebView);

    // Close the navigation drawer if it is available.  GravityCompat.START is the drawer on the left on Left-to-Right layout text.
    if (drawerLayout.isDrawerVisible(GravityCompat.START)) {
        drawerLayout.closeDrawer(GravityCompat.START);
    } else {//from ww w  .  java  2s  . c om
        // Load the previous URL if available.
        assert mainWebView != null; //This assert removes the incorrect warning on the following line that mainWebView might be null.
        if (mainWebView.canGoBack()) {
            mainWebView.goBack();
        } else {
            // Pass onBackPressed to the system.
            super.onBackPressed();
        }
    }
}

From source file:com.jiandanbaoxian.fragment.DialogFragmentCreater.java

/**
 * Dialog ???/*from w ww . j  a  v a  2  s.  c o  m*/
 * @param mContext
 * @return
 */
private Dialog showLicenseChoiceDialog(final Context mContext) {
    View convertView = LayoutInflater.from(mContext).inflate(R.layout.dialog_license_choice, null);
    final Dialog dialog = new Dialog(mContext, R.style.mystyle);

    View.OnClickListener listener = new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            switch (v.getId()) {
            case R.id.layout_rule:
                if (isAgree) {
                    isAgree = false;
                    ImageView imageView = (ImageView) v.findViewById(R.id.iv_choose);
                    //                            TextView textView = (TextView)v.findViewById(R.id.tv_rule);
                    imageView.setImageResource(R.drawable.icon_choose);
                    //                            textView.setBackgroundColor(getResources().getColor(R.color.bg_gray_color_level_0));
                    //                            textView.setTextColor(getResources().getColor(R.color.tv_gray_color_level_3));
                } else {
                    isAgree = true;
                    ImageView imageView = (ImageView) v.findViewById(R.id.iv_choose);
                    //                            TextView textView = (TextView)v.findViewById(R.id.tv_rule);
                    imageView.setImageResource(R.drawable.icon_choose_selected);
                    //                            textView.setBackgroundResource(R.drawable.btn_select_base_shape_0);
                    //                            textView.setTextColor(getResources().getColor(R.color.white_color));
                }
                break;
            }
            if (onLicenseDialogClickListener != null) {
                onLicenseDialogClickListener.onClick(v, isAgree);
            }
        }
    };

    TitleBar titleBar;
    SwipeRefreshLayout swipeLayout;
    final WebView webView;
    ProgressBar progressBar;
    LinearLayout layoutRule;
    LinearLayout layoutConfirm;

    titleBar = (TitleBar) convertView.findViewById(R.id.title_bar);
    swipeLayout = (SwipeRefreshLayout) convertView.findViewById(R.id.swipe_layout);
    webView = (WebView) convertView.findViewById(R.id.webView);
    progressBar = (ProgressBar) convertView.findViewById(R.id.progress_bar);
    layoutRule = (LinearLayout) convertView.findViewById(R.id.layout_rule);
    layoutConfirm = (LinearLayout) convertView.findViewById(R.id.layout_confirm);

    WebChromeClient client = new AppChromeWebClient(titleBar, progressBar, swipeLayout);
    webView.setWebChromeClient(client);
    webView.setWebViewClient(new AppWebClient());
    webView.getSettings().setJavaScriptEnabled(true);
    webView.loadUrl(webViewURL);
    webView.setOnKeyListener(new View.OnKeyListener() {
        @Override
        public boolean onKey(View v, int keyCode, KeyEvent event) {
            if (event.getAction() == KeyEvent.ACTION_DOWN) {
                if (keyCode == KeyEvent.KEYCODE_BACK && webView.canGoBack()) {
                    webView.goBack(); //?
                    return true; //?
                }
            }
            return false;
        }
    });

    titleBar.initTitleBarInfo("", R.drawable.arrow_left, -1, "", "");
    titleBar.setOnTitleBarClickListener(new TitleBar.OnTitleBarClickListener() {
        @Override
        public void onLeftButtonClick(View v) {
            if (webView.canGoBack()) {
                webView.goBack(); //?
                return; //?
            }

            if (onLicenseDialogClickListener != null) {
                onLicenseDialogClickListener.onClick(v, isAgree);
                dismiss();
            }
        }

        @Override
        public void onRightButtonClick(View v) {

        }
    });
    UIUtils.initSwipeRefreshLayout(swipeLayout);
    swipeLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
        @Override
        public void onRefresh() {
            webView.reload();
        }
    });

    layoutConfirm.setOnClickListener(listener);
    layoutRule.setOnClickListener(listener);

    dialog.setContentView(convertView);
    dialog.getWindow().setWindowAnimations(R.style.dialog_right_control_style);
    return dialog;
}