Example usage for android.webkit WebSettings setAllowFileAccess

List of usage examples for android.webkit WebSettings setAllowFileAccess

Introduction

In this page you can find the example usage for android.webkit WebSettings setAllowFileAccess.

Prototype

public abstract void setAllowFileAccess(boolean allow);

Source Link

Document

Enables or disables file access within WebView.

Usage

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

private void initWebView(WebView webView) {

    WebSettings settings = webView.getSettings();

    settings.setJavaScriptEnabled(true);
    settings.setAllowFileAccess(true);
    settings.setDomStorageEnabled(true);
    settings.setCacheMode(WebSettings.LOAD_NO_CACHE);
    settings.setLoadWithOverviewMode(true);
    settings.setUseWideViewPort(true);//from   www.  j  av  a2s. co  m
    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:ch.gianulli.flashcards.ui.Flashcard.java

/**
 * @param view Instance of flashcard.xml
 *//*from   w w  w .j a  v  a 2  s .co  m*/
public Flashcard(View view, OnCardAnsweredListener listener) {
    mListener = listener;

    mView = view;
    mQuestion = (StyledMarkdownView) view.findViewById(R.id.question);
    mAnswer = (StyledMarkdownView) view.findViewById(R.id.answer);
    mCardView = (CardView) view.findViewById(R.id.card);
    mButtonBar = view.findViewById(R.id.button_bar);
    mCorrectButton = (Button) view.findViewById(R.id.correct_button);
    mWrongButton = (Button) view.findViewById(R.id.wrong_button);

    mContext = mView.getContext();

    // Load colors
    int[] attrs = { android.R.attr.textColorSecondary, android.R.attr.textColorPrimary };
    TypedArray ta = mView.getContext().obtainStyledAttributes(R.style.AppTheme, attrs);
    sDeactivatedTextColor = colorToCSSString(ta.getColor(0, 0));
    sDefaultTextColor = colorToCSSString(ta.getColor(1, 0));
    ta.recycle();

    sGreenTextColor = colorToCSSString(ContextCompat.getColor(mContext, R.color.green));

    mQuestionColor = sDefaultTextColor;
    mAnswerColor = sGreenTextColor;

    // Make question visible
    mQuestion.setAlpha(1.0f);
    mAnswer.setAlpha(0.0f);

    // Setup WebViews
    WebSettings settings = mQuestion.getSettings();
    settings.setDefaultFontSize(mFontSize);
    settings.setLoadsImagesAutomatically(true);
    settings.setGeolocationEnabled(false);
    settings.setAllowFileAccess(false);
    settings.setDisplayZoomControls(false);
    settings.setNeedInitialFocus(false);
    settings.setSupportZoom(false);
    settings.setSaveFormData(false);
    settings.setJavaScriptEnabled(true);
    mQuestion.setHorizontalScrollBarEnabled(false);
    mQuestion.setVerticalScrollBarEnabled(false);

    settings = mAnswer.getSettings();
    settings.setDefaultFontSize(mFontSize);
    settings.setLoadsImagesAutomatically(true);
    settings.setGeolocationEnabled(false);
    settings.setAllowFileAccess(false);
    settings.setDisplayZoomControls(false);
    settings.setNeedInitialFocus(false);
    settings.setSupportZoom(false);
    settings.setSaveFormData(false);
    settings.setJavaScriptEnabled(true);
    mAnswer.setHorizontalScrollBarEnabled(false);
    mAnswer.setVerticalScrollBarEnabled(false);

    // Hack to disable text selection in WebViews
    mQuestion.setOnLongClickListener(new View.OnLongClickListener() {

        public boolean onLongClick(View v) {
            return true;
        }
    });
    mAnswer.setOnLongClickListener(new View.OnLongClickListener() {

        public boolean onLongClick(View v) {
            return true;
        }
    });

    // Card should "turn" on click
    final FrameLayout questionLayout = (FrameLayout) view.findViewById(R.id.question_layout);
    questionLayout.setClickable(true);
    questionLayout.setOnTouchListener(mTurnCardListener);

    mQuestion.setOnTouchListener(mTurnCardListener);
    mAnswer.setOnTouchListener(mTurnCardListener);

    // Deactivate card when user answers it
    mCorrectButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            deactivateCard(true);
            mListener.onCardAnswered(mCard, true);
        }
    });
    mWrongButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            deactivateCard(false);
            mListener.onCardAnswered(mCard, false);
        }
    });

    // Limit card width to 400dp
    ViewTreeObserver observer = mCardView.getViewTreeObserver();
    final int width480dp = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 400,
            view.getContext().getResources().getDisplayMetrics());
    observer.addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {
        @Override
        public boolean onPreDraw() {
            if (mCardView.getWidth() > width480dp) {
                ViewGroup.LayoutParams layoutParams = mCardView.getLayoutParams();
                layoutParams.width = width480dp;
                mCardView.setLayoutParams(layoutParams);
                mCardView.requestLayout();

                return false;
            }
            return true;
        }
    });
}

From source file:com.example.administrator.mywebviewdrawsign.SysWebView.java

/**
 * Initialize webview.//from w w w. j av  a2 s  . com
 */
@SuppressLint({ "NewApi", "SetJavaScriptEnabled" })
private void setup() {
    this.setInitialScale(0);
    this.setVerticalScrollBarEnabled(true);
    this.setHorizontalScrollBarEnabled(true);
    this.requestFocusFromTouch();
    // Enable JavaScript
    WebSettings settings = this.getSettings();

    settings.setBuiltInZoomControls(false);// ??
    settings.setUseWideViewPort(false);
    settings.setLoadWithOverviewMode(true);
    settings.setJavaScriptEnabled(true);
    settings.setJavaScriptCanOpenWindowsAutomatically(true);
    settings.setLayoutAlgorithm(WebSettings.LayoutAlgorithm.NORMAL);
    settings.setAllowFileAccess(true);
    settings.setAppCacheMaxSize(1024 * 1024 * 32);
    settings.setAppCachePath(mContext.getFilesDir().getPath() + "/cache");
    settings.setAppCacheEnabled(true);
    settings.setCacheMode(WebSettings.LOAD_DEFAULT);
    // Set Cache Mode: LOAD_NO_CACHE is noly for debug
    //settings.setCacheMode(WebSettings.LOAD_NO_CACHE);
    //enablePageCache(settings,5);
    //enableWorkers(settings);

    // Enable database
    settings.setDatabaseEnabled(true);
    String databasePath = mContext.getApplicationContext().getDir("database", Context.MODE_PRIVATE).getPath();
    settings.setDatabasePath(databasePath);

    // Enable DOM storage
    settings.setDomStorageEnabled(true);

    // Enable built-in geolocation
    settings.setGeolocationEnabled(true);

    // Improve render performance
    settings.setRenderPriority(WebSettings.RenderPriority.HIGH);

    if (Build.VERSION.SDK_INT >= 21) {
        settings.setMixedContentMode(WebSettings.MIXED_CONTENT_ALWAYS_ALLOW);
    }
}

From source file:com.owncloud.android.ui.dialog.LoginWebViewDialog.java

@SuppressWarnings("deprecation")
@SuppressLint("SetJavaScriptEnabled")
@Override/*w ww .  j a  va 2 s  . c o  m*/
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    Log_OC.v(TAG, "onCreateView, savedInsanceState is " + savedInstanceState);

    // Inflate layout of the dialog  
    RelativeLayout ssoRootView = (RelativeLayout) inflater.inflate(R.layout.webview_dialog, container, false); // null parent view because it will go in the dialog layout

    if (mWebView == null) {
        // initialize the WebView
        mWebView = new SsoWebView(getActivity().getApplicationContext());
        mWebView.setFocusable(true);
        mWebView.setFocusableInTouchMode(true);
        mWebView.setClickable(true);

        WebSettings webSettings = mWebView.getSettings();
        webSettings.setJavaScriptEnabled(true);
        webSettings.setSavePassword(false);
        webSettings.setUserAgentString(MainApp.getUserAgent());
        webSettings.setSaveFormData(false);
        // next two settings grant that non-responsive webs are zoomed out when loaded
        webSettings.setUseWideViewPort(true);
        webSettings.setLoadWithOverviewMode(true);
        // next three settings allow the user use pinch gesture to zoom in / out
        webSettings.setSupportZoom(true);
        webSettings.setBuiltInZoomControls(true);
        webSettings.setDisplayZoomControls(false);
        webSettings.setAllowFileAccess(false);

        CookieManager cookieManager = CookieManager.getInstance();
        cookieManager.setAcceptCookie(true);
        cookieManager.removeAllCookie();

        mWebView.loadUrl(mInitialUrl);
    }

    mWebViewClient.addTargetUrls(mTargetUrls);
    mWebView.setWebViewClient(mWebViewClient);

    // add the webview into the layout
    RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(
            RelativeLayout.LayoutParams.MATCH_PARENT, RelativeLayout.LayoutParams.MATCH_PARENT);
    ssoRootView.addView(mWebView, layoutParams);
    ssoRootView.requestLayout();

    return ssoRootView;
}

From source file:com.air.mobilebrowser.BrowserActivity.java

/** 
 * Configure a webview to use the activity as
 * its client, and update its settings with 
 * the desired parameters for the activity.
 * @param webView the webview to configure.
 *///from   ww  w.j a  va  2s  . c  om
private void configureWebView(WebView webView) {
    webView.clearCache(true);
    webView.setWebViewClient(new SecureWebClient(this));

    WebSettings settings = mWebView.getSettings();
    settings.setBuiltInZoomControls(true);
    settings.setJavaScriptEnabled(true);
    //      settings.setPluginState(PluginState.ON_DEMAND);
    settings.setPluginState(PluginState.ON);
    settings.setAllowFileAccess(true);
    settings.setAllowContentAccess(true);
    settings.setSaveFormData(false);
    settings.setSavePassword(false);
    webView.clearFormData();
    settings.setDomStorageEnabled(true);
    String defaultUserAgent = settings.getUserAgentString();

    StringBuilder sb = new StringBuilder();
    sb.append(defaultUserAgent);
    sb.append(" SmarterSecureBrowser/1.0");
    sb.append(" OS/");
    sb.append(mDeviceStatus.operatingSystem);
    sb.append(" Version/");
    sb.append(mDeviceStatus.operatingSystemVersion);
    sb.append(" Model/");
    sb.append(mDeviceStatus.model);

    settings.setUserAgentString(sb.toString());
}

From source file:com.owncloud.android.ui.activity.ExternalSiteWebView.java

@Override
protected void onCreate(Bundle savedInstanceState) {
    Log_OC.v(TAG, "onCreate() start");

    Bundle extras = getIntent().getExtras();
    String title = extras.getString(EXTRA_TITLE);
    String url = extras.getString(EXTRA_URL);
    menuItemId = extras.getInt(EXTRA_MENU_ITEM_ID);
    showSidebar = extras.getBoolean(EXTRA_SHOW_SIDEBAR);

    // show progress
    getWindow().requestFeature(Window.FEATURE_PROGRESS);

    super.onCreate(savedInstanceState);
    setContentView(R.layout.externalsite_webview);

    WebView webview = (WebView) findViewById(R.id.webView);
    WebSettings webSettings = webview.getSettings();

    webview.setFocusable(true);/* w  w w.  ja  v  a 2  s. c  o  m*/
    webview.setFocusableInTouchMode(true);
    webview.setClickable(true);

    // setup toolbar
    setupToolbar();

    // setup drawer
    setupDrawer(menuItemId);

    if (!showSidebar) {
        setDrawerLockMode(DrawerLayout.LOCK_MODE_LOCKED_CLOSED);
    }

    getSupportActionBar().setTitle(title);
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);

    // enable zoom
    webSettings.setSupportZoom(true);
    webSettings.setBuiltInZoomControls(true);
    webSettings.setDisplayZoomControls(false);

    // Non-responsive webs are zoomed out when loaded
    webSettings.setUseWideViewPort(true);
    webSettings.setLoadWithOverviewMode(true);

    // user agent
    webSettings.setUserAgentString(MainApp.getUserAgent());

    // no private data storing
    webSettings.setSavePassword(false);
    webSettings.setSaveFormData(false);

    // disable local file access
    webSettings.setAllowFileAccess(false);

    // enable javascript
    webview.getSettings().setJavaScriptEnabled(true);

    final Activity activity = this;
    final ProgressBar progressBar = (ProgressBar) findViewById(R.id.progressBar);

    webview.setWebChromeClient(new WebChromeClient() {
        public void onProgressChanged(WebView view, int progress) {
            progressBar.setProgress(progress * 1000);
        }
    });

    webview.setWebViewClient(new WebViewClient() {
        public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
            Toast.makeText(activity, getString(R.string.webview_error) + ": " + description, Toast.LENGTH_SHORT)
                    .show();
        }
    });

    webview.loadUrl(url);
}

From source file:mgks.os.webview.MainActivity.java

@SuppressLint({ "SetJavaScriptEnabled", "WrongViewCast" })
@Override//from w ww  .j  a v  a2  s  .co m
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    Log.w("READ_PERM = ", Manifest.permission.READ_EXTERNAL_STORAGE);
    Log.w("WRITE_PERM = ", Manifest.permission.WRITE_EXTERNAL_STORAGE);
    //Prevent the app from being started again when it is still alive in the background
    if (!isTaskRoot()) {
        finish();
        return;
    }

    setContentView(R.layout.activity_main);

    asw_view = findViewById(R.id.msw_view);

    final SwipeRefreshLayout pullfresh = findViewById(R.id.pullfresh);
    if (ASWP_PULLFRESH) {
        pullfresh.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
            @Override
            public void onRefresh() {
                pull_fresh();
                pullfresh.setRefreshing(false);
            }
        });
        asw_view.getViewTreeObserver()
                .addOnScrollChangedListener(new ViewTreeObserver.OnScrollChangedListener() {
                    @Override
                    public void onScrollChanged() {
                        if (asw_view.getScrollY() == 0) {
                            pullfresh.setEnabled(true);
                        } else {
                            pullfresh.setEnabled(false);
                        }
                    }
                });
    } else {
        pullfresh.setRefreshing(false);
        pullfresh.setEnabled(false);
    }

    if (ASWP_PBAR) {
        asw_progress = findViewById(R.id.msw_progress);
    } else {
        findViewById(R.id.msw_progress).setVisibility(View.GONE);
    }
    asw_loading_text = findViewById(R.id.msw_loading_text);
    Handler handler = new Handler();

    //Launching app rating request
    if (ASWP_RATINGS) {
        handler.postDelayed(new Runnable() {
            public void run() {
                get_rating();
            }
        }, 1000 * 60); //running request after few moments
    }

    //Getting basic device information
    get_info();

    //Getting GPS location of device if given permission
    if (ASWP_LOCATION && !check_permission(1)) {
        ActivityCompat.requestPermissions(MainActivity.this,
                new String[] { Manifest.permission.ACCESS_FINE_LOCATION }, loc_perm);
    }
    get_location();

    //Webview settings; defaults are customized for best performance
    WebSettings webSettings = asw_view.getSettings();

    if (!ASWP_OFFLINE) {
        webSettings.setJavaScriptEnabled(ASWP_JSCRIPT);
    }
    webSettings.setSaveFormData(ASWP_SFORM);
    webSettings.setSupportZoom(ASWP_ZOOM);
    webSettings.setGeolocationEnabled(ASWP_LOCATION);
    webSettings.setAllowFileAccess(true);
    webSettings.setAllowFileAccessFromFileURLs(true);
    webSettings.setAllowUniversalAccessFromFileURLs(true);
    webSettings.setUseWideViewPort(true);
    webSettings.setDomStorageEnabled(true);

    asw_view.setOnLongClickListener(new View.OnLongClickListener() {
        @Override
        public boolean onLongClick(View v) {
            return true;
        }
    });
    asw_view.setHapticFeedbackEnabled(false);

    asw_view.setDownloadListener(new DownloadListener() {
        @Override
        public void onDownloadStart(String url, String userAgent, String contentDisposition, String mimeType,
                long contentLength) {

            if (!check_permission(2)) {
                ActivityCompat.requestPermissions(MainActivity.this, new String[] {
                        Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.READ_EXTERNAL_STORAGE },
                        file_perm);
            } else {
                DownloadManager.Request request = new DownloadManager.Request(Uri.parse(url));

                request.setMimeType(mimeType);
                String cookies = CookieManager.getInstance().getCookie(url);
                request.addRequestHeader("cookie", cookies);
                request.addRequestHeader("User-Agent", userAgent);
                request.setDescription(getString(R.string.dl_downloading));
                request.setTitle(URLUtil.guessFileName(url, contentDisposition, mimeType));
                request.allowScanningByMediaScanner();
                request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
                request.setDestinationInExternalPublicDir(Environment.DIRECTORY_DOWNLOADS,
                        URLUtil.guessFileName(url, contentDisposition, mimeType));
                DownloadManager dm = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
                assert dm != null;
                dm.enqueue(request);
                Toast.makeText(getApplicationContext(), getString(R.string.dl_downloading2), Toast.LENGTH_LONG)
                        .show();
            }
        }
    });

    if (Build.VERSION.SDK_INT >= 21) {
        getWindow().addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
        getWindow().setStatusBarColor(getResources().getColor(R.color.colorPrimaryDark));
        asw_view.setLayerType(View.LAYER_TYPE_HARDWARE, null);
        webSettings.setMixedContentMode(WebSettings.MIXED_CONTENT_ALWAYS_ALLOW);
    } else if (Build.VERSION.SDK_INT >= 19) {
        asw_view.setLayerType(View.LAYER_TYPE_HARDWARE, null);
    }
    asw_view.setVerticalScrollBarEnabled(false);
    asw_view.setWebViewClient(new Callback());

    //Rendering the default URL
    aswm_view(ASWV_URL, false);

    asw_view.setWebChromeClient(new WebChromeClient() {
        //Handling input[type="file"] requests for android API 16+
        public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType, String capture) {
            if (ASWP_FUPLOAD) {
                asw_file_message = uploadMsg;
                Intent i = new Intent(Intent.ACTION_GET_CONTENT);
                i.addCategory(Intent.CATEGORY_OPENABLE);
                i.setType(ASWV_F_TYPE);
                if (ASWP_MULFILE) {
                    i.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
                }
                startActivityForResult(Intent.createChooser(i, getString(R.string.fl_chooser)), asw_file_req);
            }
        }

        //Handling input[type="file"] requests for android API 21+
        public boolean onShowFileChooser(WebView webView, ValueCallback<Uri[]> filePathCallback,
                FileChooserParams fileChooserParams) {
            if (check_permission(2) && check_permission(3)) {
                if (ASWP_FUPLOAD) {
                    if (asw_file_path != null) {
                        asw_file_path.onReceiveValue(null);
                    }
                    asw_file_path = filePathCallback;
                    Intent takePictureIntent = null;
                    if (ASWP_CAMUPLOAD) {
                        takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                        if (takePictureIntent.resolveActivity(MainActivity.this.getPackageManager()) != null) {
                            File photoFile = null;
                            try {
                                photoFile = create_image();
                                takePictureIntent.putExtra("PhotoPath", asw_cam_message);
                            } catch (IOException ex) {
                                Log.e(TAG, "Image file creation failed", ex);
                            }
                            if (photoFile != null) {
                                asw_cam_message = "file:" + photoFile.getAbsolutePath();
                                takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(photoFile));
                            } else {
                                takePictureIntent = null;
                            }
                        }
                    }
                    Intent contentSelectionIntent = new Intent(Intent.ACTION_GET_CONTENT);
                    if (!ASWP_ONLYCAM) {
                        contentSelectionIntent.addCategory(Intent.CATEGORY_OPENABLE);
                        contentSelectionIntent.setType(ASWV_F_TYPE);
                        if (ASWP_MULFILE) {
                            contentSelectionIntent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
                        }
                    }
                    Intent[] intentArray;
                    if (takePictureIntent != null) {
                        intentArray = new Intent[] { takePictureIntent };
                    } else {
                        intentArray = new Intent[0];
                    }

                    Intent chooserIntent = new Intent(Intent.ACTION_CHOOSER);
                    chooserIntent.putExtra(Intent.EXTRA_INTENT, contentSelectionIntent);
                    chooserIntent.putExtra(Intent.EXTRA_TITLE, getString(R.string.fl_chooser));
                    chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, intentArray);
                    startActivityForResult(chooserIntent, asw_file_req);
                }
                return true;
            } else {
                get_file();
                return false;
            }
        }

        //Getting webview rendering progress
        @Override
        public void onProgressChanged(WebView view, int p) {
            if (ASWP_PBAR) {
                asw_progress.setProgress(p);
                if (p == 100) {
                    asw_progress.setProgress(0);
                }
            }
        }

        // overload the geoLocations permissions prompt to always allow instantly as app permission was granted previously
        public void onGeolocationPermissionsShowPrompt(String origin,
                GeolocationPermissions.Callback callback) {
            if (Build.VERSION.SDK_INT < 23 || check_permission(1)) {
                // location permissions were granted previously so auto-approve
                callback.invoke(origin, true, false);
            } else {
                // location permissions not granted so request them
                ActivityCompat.requestPermissions(MainActivity.this,
                        new String[] { Manifest.permission.ACCESS_FINE_LOCATION }, loc_perm);
            }
        }
    });
    if (getIntent().getData() != null) {
        String path = getIntent().getDataString();
        /*
        If you want to check or use specific directories or schemes or hosts
                
        Uri data        = getIntent().getData();
        String scheme   = data.getScheme();
        String host     = data.getHost();
        List<String> pr = data.getPathSegments();
        String param1   = pr.get(0);
        */
        aswm_view(path, false);
    }
}

From source file:com.nttec.everychan.ui.gallery.GalleryActivity.java

private void setWebView(final GalleryItemViewTag tag, final File file) {
    runOnUiThread(new Runnable() {
        private boolean oomFlag = false;

        private final ViewGroup.LayoutParams MATCH_PARAMS = new ViewGroup.LayoutParams(
                ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);

        private void prepareWebView(WebView webView) {
            webView.setBackgroundColor(Color.TRANSPARENT);
            webView.setInitialScale(100);
            webView.setScrollBarStyle(WebView.SCROLLBARS_OUTSIDE_OVERLAY);
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ECLAIR) {
                CompatibilityImpl.setScrollbarFadingEnabled(webView, true);
            }/* w w w. j  a v  a 2s.c  o  m*/

            WebSettings settings = webView.getSettings();
            settings.setBuiltInZoomControls(true);
            settings.setSupportZoom(true);
            settings.setAllowFileAccess(true);
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ECLAIR_MR1) {
                CompatibilityImpl.setDefaultZoomFAR(settings);
                CompatibilityImpl.setLoadWithOverviewMode(settings, true);
            }
            settings.setUseWideViewPort(true);
            settings.setCacheMode(WebSettings.LOAD_NO_CACHE);

            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.FROYO) {
                CompatibilityImpl.setBlockNetworkLoads(settings, true);
            }

            setScaleWebView(webView);
        }

        private void setScaleWebView(final WebView webView) {
            Runnable callSetScaleWebView = new Runnable() {
                @Override
                public void run() {
                    setPrivateScaleWebView(webView);
                }
            };

            Point resolution = new Point(tag.layout.getWidth(), tag.layout.getHeight());
            if (resolution.equals(0, 0)) {
                // wait until the view is measured and its size is known
                AppearanceUtils.callWhenLoaded(tag.layout, callSetScaleWebView);
            } else {
                callSetScaleWebView.run();
            }
        }

        private void setPrivateScaleWebView(WebView webView) {
            Point imageSize = getImageSize(file);
            Point resolution = new Point(tag.layout.getWidth(), tag.layout.getHeight());

            //Logger.d(TAG, "Resolution: "+resolution.x+"x"+resolution.y);
            double scaleX = (double) resolution.x / (double) imageSize.x;
            double scaleY = (double) resolution.y / (double) imageSize.y;
            int scale = (int) Math.round(Math.min(scaleX, scaleY) * 100d);
            scale = Math.max(scale, 1);
            //Logger.d(TAG, "Scale: "+(Math.min(scaleX, scaleY) * 100d));
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ECLAIR_MR1) {
                double picdpi = (getResources().getDisplayMetrics().density * 160d) / scaleX;
                if (picdpi >= 240) {
                    CompatibilityImpl.setDefaultZoomFAR(webView.getSettings());
                } else if (picdpi <= 120) {
                    CompatibilityImpl.setDefaultZoomCLOSE(webView.getSettings());
                } else {
                    CompatibilityImpl.setDefaultZoomMEDIUM(webView.getSettings());
                }
            }

            webView.setInitialScale(scale);
            webView.setPadding(0, 0, 0, 0);
        }

        private Point getImageSize(File file) {
            BitmapFactory.Options options = new BitmapFactory.Options();
            options.inJustDecodeBounds = true;
            BitmapFactory.decodeFile(file.getAbsolutePath(), options);
            return new Point(options.outWidth, options.outHeight);
        }

        private boolean useFallback(File file) {
            String path = file.getPath().toLowerCase(Locale.US);
            if (path.endsWith(".png"))
                return false;
            if (path.endsWith(".jpg"))
                return false;
            if (path.endsWith(".gif"))
                return false;
            if (path.endsWith(".jpeg"))
                return false;
            if (path.endsWith(".webp") && Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH)
                return false;
            return true;
        }

        @Override
        public void run() {
            try {
                recycleTag(tag, false);
                WebView webView = new WebViewFixed(GalleryActivity.this);
                webView.setLayoutParams(MATCH_PARAMS);
                tag.layout.addView(webView);
                if (settings.fallbackWebView() || useFallback(file)) {
                    prepareWebView(webView);
                    webView.loadUrl(Uri.fromFile(file).toString());
                } else {
                    JSWebView.setImage(webView, file);
                }
                tag.thumbnailView.setVisibility(View.GONE);
                tag.loadingView.setVisibility(View.GONE);
                tag.layout.setVisibility(View.VISIBLE);
            } catch (OutOfMemoryError oom) {
                System.gc();
                Logger.e(TAG, oom);
                if (!oomFlag) {
                    oomFlag = true;
                    run();
                } else
                    showError(tag, getString(R.string.error_out_of_memory));
            }
        }

    });
}

From source file:nya.miku.wishmaster.ui.GalleryActivity.java

private void setWebView(final GalleryItemViewTag tag, final File file) {
    runOnUiThread(new Runnable() {
        private boolean oomFlag = false;

        private final ViewGroup.LayoutParams MATCH_PARAMS = new ViewGroup.LayoutParams(
                ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);

        private void prepareWebView(WebView webView) {
            webView.setBackgroundColor(Color.TRANSPARENT);
            webView.setInitialScale(100);
            webView.setScrollBarStyle(WebView.SCROLLBARS_OUTSIDE_OVERLAY);
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ECLAIR) {
                CompatibilityImpl.setScrollbarFadingEnabled(webView, true);
            }//w  ww .  ja v a2 s  .co  m

            WebSettings settings = webView.getSettings();
            settings.setBuiltInZoomControls(true);
            settings.setSupportZoom(true);
            settings.setAllowFileAccess(true);
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ECLAIR_MR1) {
                CompatibilityImpl.setDefaultZoomFAR(settings);
                CompatibilityImpl.setLoadWithOverviewMode(settings, true);
            }
            settings.setUseWideViewPort(true);
            settings.setCacheMode(WebSettings.LOAD_NO_CACHE);

            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.FROYO) {
                CompatibilityImpl.setBlockNetworkLoads(settings, true);
            }

            setScaleWebView(webView);
        }

        private void setScaleWebView(final WebView webView) {
            Runnable callSetScaleWebView = new Runnable() {
                @Override
                public void run() {
                    setPrivateScaleWebView(webView);
                }
            };

            Point resolution = new Point(tag.layout.getWidth(), tag.layout.getHeight());
            if (resolution.equals(0, 0)) {
                // wait until the view is measured and its size is known
                AppearanceUtils.callWhenLoaded(tag.layout, callSetScaleWebView);
            } else {
                callSetScaleWebView.run();
            }
        }

        private void setPrivateScaleWebView(WebView webView) {
            Point imageSize = getImageSize(file);
            Point resolution = new Point(tag.layout.getWidth(), tag.layout.getHeight());

            //Logger.d(TAG, "Resolution: "+resolution.x+"x"+resolution.y);
            double scaleX = (double) resolution.x / (double) imageSize.x;
            double scaleY = (double) resolution.y / (double) imageSize.y;
            int scale = (int) Math.round(Math.min(scaleX, scaleY) * 100d);
            scale = Math.max(scale, 1);
            //Logger.d(TAG, "Scale: "+(Math.min(scaleX, scaleY) * 100d));
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ECLAIR_MR1) {
                double picdpi = (getResources().getDisplayMetrics().density * 160d) / scaleX;
                if (picdpi >= 240) {
                    CompatibilityImpl.setDefaultZoomFAR(webView.getSettings());
                } else if (picdpi <= 120) {
                    CompatibilityImpl.setDefaultZoomCLOSE(webView.getSettings());
                } else {
                    CompatibilityImpl.setDefaultZoomMEDIUM(webView.getSettings());
                }
            }

            webView.setInitialScale(scale);
            webView.setPadding(0, 0, 0, 0);
        }

        private Point getImageSize(File file) {
            BitmapFactory.Options options = new BitmapFactory.Options();
            options.inJustDecodeBounds = true;
            BitmapFactory.decodeFile(file.getAbsolutePath(), options);
            return new Point(options.outWidth, options.outHeight);
        }

        private boolean useFallback(File file) {
            String path = file.getPath().toLowerCase(Locale.US);
            if (path.endsWith(".png"))
                return false;
            if (path.endsWith(".jpg"))
                return false;
            if (path.endsWith(".gif"))
                return false;
            if (path.endsWith(".jpeg"))
                return false;
            if (path.endsWith(".webp") && Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH)
                return false;
            return true;
        }

        @Override
        public void run() {
            try {
                recycleTag(tag, false);
                WebView webView = new WebViewFixed(GalleryActivity.this);
                webView.setLayoutParams(MATCH_PARAMS);
                tag.layout.addView(webView);
                if (settings.fallbackWebView() || useFallback(file)) {
                    prepareWebView(webView);
                    webView.loadUrl(Uri.fromFile(file).toString());
                } else {
                    JSWebView.setImage(webView, file);
                }
                tag.thumbnailView.setVisibility(View.GONE);
                tag.loadingView.setVisibility(View.GONE);
                tag.layout.setVisibility(View.VISIBLE);
            } catch (OutOfMemoryError oom) {
                MainApplication.freeMemory();
                Logger.e(TAG, oom);
                if (!oomFlag) {
                    oomFlag = true;
                    run();
                } else
                    showError(tag, getString(R.string.error_out_of_memory));
            }
        }

    });
}

From source file:com.creativtrendz.folio.ui.FolioWebViewScroll.java

@SuppressLint({ "SetJavaScriptEnabled" })
protected void init(Context context) {
    if (context instanceof Activity) {
        mActivity = new WeakReference<>((Activity) context);
    }// ww w.  java  2s  .c om

    mLanguageIso3 = getLanguageIso3();

    setFocusable(true);
    setFocusableInTouchMode(true);

    setSaveEnabled(true);

    final String filesDir = context.getFilesDir().getPath();
    final String databaseDir = filesDir.substring(0, filesDir.lastIndexOf("/")) + DATABASES_SUB_FOLDER;

    final WebSettings webSettings = getSettings();
    webSettings.setAllowFileAccess(false);
    setAllowAccessFromFileUrls(webSettings, false);
    webSettings.setBuiltInZoomControls(false);
    webSettings.setJavaScriptEnabled(true);
    webSettings.setDomStorageEnabled(true);
    if (Build.VERSION.SDK_INT < 18) {
        webSettings.setRenderPriority(WebSettings.RenderPriority.HIGH);
    }
    webSettings.setDatabaseEnabled(true);
    if (Build.VERSION.SDK_INT < 19) {
        webSettings.setDatabasePath(databaseDir);
    }
    setMixedContentAllowed(webSettings, true);

    setThirdPartyCookiesEnabled(true);

    super.setWebViewClient(new WebViewClient() {

        @Override
        public void onPageStarted(WebView view, String url, Bitmap favicon) {
            if (!hasError()) {
                if (mListener != null) {
                    mListener.onPageStarted(url, favicon);
                }
            }

            if (mCustomWebViewClient != null) {
                mCustomWebViewClient.onPageStarted(view, url, favicon);
            }
        }

        @Override
        public void onPageFinished(WebView view, String url) {
            if (!hasError()) {
                if (mListener != null) {
                    mListener.onPageFinished(url);
                }
            }

            if (mCustomWebViewClient != null) {
                mCustomWebViewClient.onPageFinished(view, url);
            }
        }

        @Override
        public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
            setLastError();

            if (mListener != null) {
                mListener.onPageError(errorCode, description, failingUrl);
            }

            if (mCustomWebViewClient != null) {
                mCustomWebViewClient.onReceivedError(view, errorCode, description, failingUrl);
            }
        }

        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            if (isHostnameAllowed(url)) {
                return mCustomWebViewClient != null && mCustomWebViewClient.shouldOverrideUrlLoading(view, url);
            } else {
                if (mListener != null) {
                    mListener.onExternalPageRequest(url);
                }

                return true;
            }
        }

        @Override
        public void onLoadResource(WebView view, String url) {
            if (mCustomWebViewClient != null) {
                mCustomWebViewClient.onLoadResource(view, url);
            } else {
                super.onLoadResource(view, url);
            }
        }

        @SuppressLint("NewApi")
        @SuppressWarnings("all")
        public WebResourceResponse shouldInterceptRequest(WebView view, String url) {
            if (Build.VERSION.SDK_INT >= 11) {
                if (mCustomWebViewClient != null) {
                    return mCustomWebViewClient.shouldInterceptRequest(view, url);
                } else {
                    return super.shouldInterceptRequest(view, url);
                }
            } else {
                return null;
            }
        }

        @SuppressLint("NewApi")
        @SuppressWarnings("all")
        public WebResourceResponse shouldInterceptRequest(WebView view, WebResourceRequest request) {
            if (Build.VERSION.SDK_INT >= 21) {
                if (mCustomWebViewClient != null) {
                    return mCustomWebViewClient.shouldInterceptRequest(view, request);
                } else {
                    return super.shouldInterceptRequest(view, request);
                }
            } else {
                return null;
            }
        }

        @Override
        public void onFormResubmission(WebView view, Message dontResend, Message resend) {
            if (mCustomWebViewClient != null) {
                mCustomWebViewClient.onFormResubmission(view, dontResend, resend);
            } else {
                super.onFormResubmission(view, dontResend, resend);
            }
        }

        @Override
        public void doUpdateVisitedHistory(WebView view, String url, boolean isReload) {
            if (mCustomWebViewClient != null) {
                mCustomWebViewClient.doUpdateVisitedHistory(view, url, isReload);
            } else {
                super.doUpdateVisitedHistory(view, url, isReload);
            }
        }

        @Override
        public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
            if (mCustomWebViewClient != null) {
                mCustomWebViewClient.onReceivedSslError(view, handler, error);
            } else {
                super.onReceivedSslError(view, handler, error);
            }
        }

        @SuppressLint("NewApi")
        @SuppressWarnings("all")
        public void onReceivedClientCertRequest(WebView view, ClientCertRequest request) {
            if (Build.VERSION.SDK_INT >= 21) {
                if (mCustomWebViewClient != null) {
                    mCustomWebViewClient.onReceivedClientCertRequest(view, request);
                } else {
                    super.onReceivedClientCertRequest(view, request);
                }
            }
        }

        @Override
        public void onReceivedHttpAuthRequest(WebView view, HttpAuthHandler handler, String host,
                String realm) {
            if (mCustomWebViewClient != null) {
                mCustomWebViewClient.onReceivedHttpAuthRequest(view, handler, host, realm);
            } else {
                super.onReceivedHttpAuthRequest(view, handler, host, realm);
            }
        }

        @Override
        public boolean shouldOverrideKeyEvent(WebView view, KeyEvent event) {
            if (mCustomWebViewClient != null) {
                return mCustomWebViewClient.shouldOverrideKeyEvent(view, event);
            } else {
                return super.shouldOverrideKeyEvent(view, event);
            }
        }

        @Override
        public void onUnhandledKeyEvent(WebView view, KeyEvent event) {
            if (mCustomWebViewClient != null) {
                mCustomWebViewClient.onUnhandledKeyEvent(view, event);
            } else {
                super.onUnhandledKeyEvent(view, event);
            }
        }

        @SuppressLint("NewApi")
        @SuppressWarnings("all")
        public void onUnhandledInputEvent(WebView view, InputEvent event) {
            if (Build.VERSION.SDK_INT >= 21) {
                if (mCustomWebViewClient != null) {
                    mCustomWebViewClient.onUnhandledInputEvent(view, event);
                } else {
                    super.onUnhandledInputEvent(view, event);
                }
            }
        }

        @Override
        public void onScaleChanged(WebView view, float oldScale, float newScale) {
            if (mCustomWebViewClient != null) {
                mCustomWebViewClient.onScaleChanged(view, oldScale, newScale);
            } else {
                super.onScaleChanged(view, oldScale, newScale);
            }
        }

        @SuppressLint("NewApi")
        @SuppressWarnings("all")
        public void onReceivedLoginRequest(WebView view, String realm, String account, String args) {
            if (Build.VERSION.SDK_INT >= 12) {
                if (mCustomWebViewClient != null) {
                    mCustomWebViewClient.onReceivedLoginRequest(view, realm, account, args);
                } else {
                    super.onReceivedLoginRequest(view, realm, account, args);
                }
            }
        }

    });

    super.setWebChromeClient(new WebChromeClient() {

        // file upload callback (Android 2.2 (API level 8) -- Android 2.3 (API level 10)) (hidden method)
        @SuppressWarnings("unused")
        public void openFileChooser(ValueCallback<Uri> uploadMsg) {
            openFileChooser(uploadMsg, null);
        }

        // file upload callback (Android 3.0 (API level 11) -- Android 4.0 (API level 15)) (hidden method)
        public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType) {
            openFileChooser(uploadMsg, acceptType, null);
        }

        // file upload callback (Android 4.1 (API level 16) -- Android 4.3 (API level 18)) (hidden method)
        @SuppressWarnings("unused")
        public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType, String capture) {
            openFileInput(uploadMsg, null);
        }

        // file upload callback (Android 5.0 (API level 21) -- current) (public method)
        @SuppressWarnings("all")
        public boolean onShowFileChooser(WebView webView, ValueCallback<Uri[]> filePathCallback,
                WebChromeClient.FileChooserParams fileChooserParams) {
            openFileInput(null, filePathCallback);
            return true;
        }

        @Override
        public void onProgressChanged(WebView view, int newProgress) {
            if (mCustomWebChromeClient != null) {
                mCustomWebChromeClient.onProgressChanged(view, newProgress);
            } else {
                super.onProgressChanged(view, newProgress);
            }
        }

        @Override
        public void onReceivedTitle(WebView view, String title) {
            if (mCustomWebChromeClient != null) {
                mCustomWebChromeClient.onReceivedTitle(view, title);
            } else {
                super.onReceivedTitle(view, title);
            }
        }

        @Override
        public void onReceivedIcon(WebView view, Bitmap icon) {
            if (mCustomWebChromeClient != null) {
                mCustomWebChromeClient.onReceivedIcon(view, icon);
            } else {
                super.onReceivedIcon(view, icon);
            }
        }

        @Override
        public void onReceivedTouchIconUrl(WebView view, String url, boolean precomposed) {
            if (mCustomWebChromeClient != null) {
                mCustomWebChromeClient.onReceivedTouchIconUrl(view, url, precomposed);
            } else {
                super.onReceivedTouchIconUrl(view, url, precomposed);
            }
        }

        @Override
        public void onShowCustomView(View view, CustomViewCallback callback) {
            if (mCustomWebChromeClient != null) {
                mCustomWebChromeClient.onShowCustomView(view, callback);
            } else {
                super.onShowCustomView(view, callback);
            }
        }

        @SuppressLint("NewApi")
        @SuppressWarnings("all")
        public void onShowCustomView(View view, int requestedOrientation, CustomViewCallback callback) {
            if (Build.VERSION.SDK_INT >= 14) {
                if (mCustomWebChromeClient != null) {
                    mCustomWebChromeClient.onShowCustomView(view, requestedOrientation, callback);
                } else {
                    super.onShowCustomView(view, requestedOrientation, callback);
                }
            }
        }

        @Override
        public void onHideCustomView() {
            if (mCustomWebChromeClient != null) {
                mCustomWebChromeClient.onHideCustomView();
            } else {
                super.onHideCustomView();
            }
        }

        @Override
        public boolean onCreateWindow(WebView view, boolean isDialog, boolean isUserGesture,
                Message resultMsg) {
            if (mCustomWebChromeClient != null) {
                return mCustomWebChromeClient.onCreateWindow(view, isDialog, isUserGesture, resultMsg);
            } else {
                return super.onCreateWindow(view, isDialog, isUserGesture, resultMsg);
            }
        }

        @Override
        public void onRequestFocus(WebView view) {
            if (mCustomWebChromeClient != null) {
                mCustomWebChromeClient.onRequestFocus(view);
            } else {
                super.onRequestFocus(view);
            }
        }

        @Override
        public void onCloseWindow(WebView window) {
            if (mCustomWebChromeClient != null) {
                mCustomWebChromeClient.onCloseWindow(window);
            } else {
                super.onCloseWindow(window);
            }
        }

        @Override
        public boolean onJsAlert(WebView view, String url, String message, JsResult result) {
            if (mCustomWebChromeClient != null) {
                return mCustomWebChromeClient.onJsAlert(view, url, message, result);
            } else {
                return super.onJsAlert(view, url, message, result);
            }
        }

        @Override
        public boolean onJsConfirm(WebView view, String url, String message, JsResult result) {
            if (mCustomWebChromeClient != null) {
                return mCustomWebChromeClient.onJsConfirm(view, url, message, result);
            } else {
                return super.onJsConfirm(view, url, message, result);
            }
        }

        @Override
        public boolean onJsPrompt(WebView view, String url, String message, String defaultValue,
                JsPromptResult result) {
            if (mCustomWebChromeClient != null) {
                return mCustomWebChromeClient.onJsPrompt(view, url, message, defaultValue, result);
            } else {
                return super.onJsPrompt(view, url, message, defaultValue, result);
            }
        }

        @Override
        public boolean onJsBeforeUnload(WebView view, String url, String message, JsResult result) {
            if (mCustomWebChromeClient != null) {
                return mCustomWebChromeClient.onJsBeforeUnload(view, url, message, result);
            } else {
                return super.onJsBeforeUnload(view, url, message, result);
            }
        }

        @Override
        public void onGeolocationPermissionsShowPrompt(String origin, Callback callback) {
            if (mGeolocationEnabled) {
                callback.invoke(origin, true, false);
            } else {
                if (mCustomWebChromeClient != null) {
                    mCustomWebChromeClient.onGeolocationPermissionsShowPrompt(origin, callback);
                } else {
                    super.onGeolocationPermissionsShowPrompt(origin, callback);
                }
            }
        }

        @Override
        public void onGeolocationPermissionsHidePrompt() {
            if (mCustomWebChromeClient != null) {
                mCustomWebChromeClient.onGeolocationPermissionsHidePrompt();
            } else {
                super.onGeolocationPermissionsHidePrompt();
            }
        }

        @SuppressLint("NewApi")
        @SuppressWarnings("all")
        public void onPermissionRequest(PermissionRequest request) {
            if (Build.VERSION.SDK_INT >= 21) {
                if (mCustomWebChromeClient != null) {
                    mCustomWebChromeClient.onPermissionRequest(request);
                } else {
                    super.onPermissionRequest(request);
                }
            }
        }

        @SuppressLint("NewApi")
        @SuppressWarnings("all")
        public void onPermissionRequestCanceled(PermissionRequest request) {
            if (Build.VERSION.SDK_INT >= 21) {
                if (mCustomWebChromeClient != null) {
                    mCustomWebChromeClient.onPermissionRequestCanceled(request);
                } else {
                    super.onPermissionRequestCanceled(request);
                }
            }
        }

        @Override
        public boolean onJsTimeout() {
            if (mCustomWebChromeClient != null) {
                return mCustomWebChromeClient.onJsTimeout();
            } else {
                return super.onJsTimeout();
            }
        }

        @Override
        public void onConsoleMessage(String message, int lineNumber, String sourceID) {
            if (mCustomWebChromeClient != null) {
                mCustomWebChromeClient.onConsoleMessage(message, lineNumber, sourceID);
            } else {
                super.onConsoleMessage(message, lineNumber, sourceID);
            }
        }

        @Override
        public boolean onConsoleMessage(ConsoleMessage consoleMessage) {
            if (mCustomWebChromeClient != null) {
                return mCustomWebChromeClient.onConsoleMessage(consoleMessage);
            } else {
                return super.onConsoleMessage(consoleMessage);
            }
        }

        @Override
        public Bitmap getDefaultVideoPoster() {
            if (mCustomWebChromeClient != null) {
                return mCustomWebChromeClient.getDefaultVideoPoster();
            } else {
                return super.getDefaultVideoPoster();
            }
        }

        @Override
        public View getVideoLoadingProgressView() {
            if (mCustomWebChromeClient != null) {
                return mCustomWebChromeClient.getVideoLoadingProgressView();
            } else {
                return super.getVideoLoadingProgressView();
            }
        }

        @Override
        public void getVisitedHistory(ValueCallback<String[]> callback) {
            if (mCustomWebChromeClient != null) {
                mCustomWebChromeClient.getVisitedHistory(callback);
            } else {
                super.getVisitedHistory(callback);
            }
        }

        @Override
        public void onExceededDatabaseQuota(String url, String databaseIdentifier, long quota,
                long estimatedDatabaseSize, long totalQuota, QuotaUpdater quotaUpdater) {
            if (mCustomWebChromeClient != null) {
                mCustomWebChromeClient.onExceededDatabaseQuota(url, databaseIdentifier, quota,
                        estimatedDatabaseSize, totalQuota, quotaUpdater);
            } else {
                super.onExceededDatabaseQuota(url, databaseIdentifier, quota, estimatedDatabaseSize, totalQuota,
                        quotaUpdater);
            }
        }

        @Override
        public void onReachedMaxAppCacheSize(long requiredStorage, long quota, QuotaUpdater quotaUpdater) {
            if (mCustomWebChromeClient != null) {
                mCustomWebChromeClient.onReachedMaxAppCacheSize(requiredStorage, quota, quotaUpdater);
            } else {
                super.onReachedMaxAppCacheSize(requiredStorage, quota, quotaUpdater);
            }
        }

    });

    setDownloadListener(new DownloadListener() {

        @Override
        public void onDownloadStart(String url, String userAgent, String contentDisposition, String mimetype,
                long contentLength) {
            if (mListener != null) {
                mListener.onDownloadRequested(url, userAgent, contentDisposition, mimetype, contentLength);
            }
        }

    });
}