Example usage for android.webkit WebView enableSlowWholeDocumentDraw

Introduction

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

Prototype

public static void enableSlowWholeDocumentDraw() 

Source Link

Document

For apps targeting the L release, WebView has a new default behavior that reduces memory footprint and increases performance by intelligently choosing the portion of the HTML document that needs to be drawn.

Usage

From source file:de.baumann.browser.Browser_left.java

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    getWindow().addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
    getWindow().setStatusBarColor(ContextCompat.getColor(Browser_left.this, R.color.colorPrimaryDark));

    WebView.enableSlowWholeDocumentDraw();
    setContentView(R.layout.activity_browser);
    helper_main.checkPin(Browser_left.this);
    helper_main.onStart(Browser_left.this);

    PreferenceManager.setDefaultValues(this, R.xml.user_settings, false);
    PreferenceManager.setDefaultValues(this, R.xml.user_settings_search, false);
    sharedPref = PreferenceManager.getDefaultSharedPreferences(this);
    sharedPref.edit().putBoolean("isOpened", true).apply();

    boolean show = sharedPref.getBoolean("introShowDo_notShow", true);

    if (show) {/*  w ww  .  j av a  2s . c om*/
        helper_main.switchToActivity(Browser_left.this, Activity_intro.class, "", false);
    }

    sharedPref.edit()
            .putString("openURL", sharedPref.getString("startURL", "https://github.com/scoute-dich/browser/"))
            .apply();
    sharedPref.edit().putInt("keyboard", 0).apply();
    sharedPref.getInt("keyboard", 0);

    if (sharedPref.getString("saved_key_ok", "no").equals("no")) {
        char[] chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890!$%&/()=?;:_-.,+#*<>"
                .toCharArray();
        StringBuilder sb = new StringBuilder();
        Random random = new Random();
        for (int i = 0; i < 25; i++) {
            char c = chars[random.nextInt(chars.length)];
            sb.append(c);
        }
        sharedPref.edit().putString("saved_key", sb.toString()).apply();
        sharedPref.edit().putString("saved_key_ok", "yes").apply();
    }

    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);

    actionBar = getSupportActionBar();

    customViewContainer = (FrameLayout) findViewById(R.id.customViewContainer);
    progressBar = (ProgressBar) findViewById(R.id.progressBar);

    editText = (EditText) findViewById(R.id.editText);
    editText.setVisibility(View.GONE);
    editText.setHint(R.string.app_search_hint);
    editText.clearFocus();

    urlBar = (TextView) findViewById(R.id.urlBar);

    imageButton = (ImageButton) findViewById(R.id.imageButton);
    imageButton.setVisibility(View.INVISIBLE);
    imageButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            mWebView.scrollTo(0, 0);
            imageButton.setVisibility(View.INVISIBLE);
            if (!actionBar.isShowing()) {
                urlBar.setText(mWebView.getTitle());
                actionBar.show();
            }
            helper_browser.setNavArrows(mWebView, imageButton_left, imageButton_right);
        }
    });

    SwipeRefreshLayout swipeView = (SwipeRefreshLayout) findViewById(R.id.swipe);
    assert swipeView != null;
    swipeView.setColorSchemeResources(R.color.colorPrimary, R.color.colorAccent);
    swipeView.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
        @Override
        public void onRefresh() {
            mWebView.reload();
        }
    });

    mWebView = (ObservableWebView) findViewById(R.id.webView);
    if (sharedPref.getString("fullscreen", "2").equals("2")
            || sharedPref.getString("fullscreen", "2").equals("3")) {
        mWebView.setScrollViewCallbacks(this);
    }

    mWebChromeClient = new myWebChromeClient();
    mWebView.setWebChromeClient(mWebChromeClient);

    imageButton_left = (ImageButton) findViewById(R.id.imageButton_left);
    imageButton_right = (ImageButton) findViewById(R.id.imageButton_right);

    if (sharedPref.getBoolean("arrow", false)) {
        imageButton_left.setVisibility(View.VISIBLE);
        imageButton_right.setVisibility(View.VISIBLE);
    } else {
        imageButton_left.setVisibility(View.INVISIBLE);
        imageButton_right.setVisibility(View.INVISIBLE);
    }

    helper_webView.webView_Settings(Browser_left.this, mWebView);
    helper_webView.webView_WebViewClient(Browser_left.this, swipeView, mWebView, urlBar);

    mWebView.getSettings().setCacheMode(WebSettings.LOAD_DEFAULT);

    if (isNetworkUnAvailable()) {
        if (sharedPref.getBoolean("offline", false)) {
            if (isNetworkUnAvailable()) { // loading offline
                mWebView.getSettings().setCacheMode(WebSettings.LOAD_CACHE_ELSE_NETWORK);
                Snackbar.make(mWebView, R.string.toast_cache, Snackbar.LENGTH_SHORT).show();
            }
        } else {
            Snackbar.make(mWebView, R.string.toast_noInternet, Snackbar.LENGTH_SHORT).show();
        }
    }

    mWebView.setDownloadListener(new DownloadListener() {

        public void onDownloadStart(final String url, String userAgent, final String contentDisposition,
                final String mimetype, long contentLength) {

            registerReceiver(onComplete, new IntentFilter(DownloadManager.ACTION_DOWNLOAD_COMPLETE));

            final String filename = URLUtil.guessFileName(url, contentDisposition, mimetype);
            Snackbar snackbar = Snackbar
                    .make(mWebView, getString(R.string.toast_download_1) + " " + filename, Snackbar.LENGTH_LONG)
                    .setAction(getString(R.string.toast_yes), new View.OnClickListener() {
                        @Override
                        public void onClick(View view) {
                            DownloadManager.Request request = new DownloadManager.Request(Uri.parse(url));
                            request.addRequestHeader("Cookie", CookieManager.getInstance().getCookie(url));
                            request.allowScanningByMediaScanner();
                            request.setNotificationVisibility(
                                    DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED); //Notify client once download is completed!
                            request.setDestinationInExternalPublicDir(Environment.DIRECTORY_DOWNLOADS,
                                    filename);
                            DownloadManager dm = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
                            dm.enqueue(request);

                            Snackbar.make(mWebView, getString(R.string.toast_download) + " " + filename,
                                    Snackbar.LENGTH_SHORT).show();
                        }
                    });
            snackbar.show();
        }
    });

    helper_browser.toolbar(Browser_left.this, Browser_right.class, mWebView, toolbar);
    helper_editText.editText_EditorAction(editText, Browser_left.this, mWebView, urlBar);
    helper_editText.editText_FocusChange(editText, Browser_left.this);
    helper_main.grantPermissionsStorage(Browser_left.this);

    onNewIntent(getIntent());
}

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