Java 类android.webkit.WebViewClient 实例源码

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_story_webview);
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);

    final Item item = (Item) getIntent().getSerializableExtra("item");

    WebView webView = new WebView(this);
    webView.getSettings().setJavaScriptEnabled(true);
    webView.setWebViewClient(new WebViewClient() {
        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            view.loadUrl(url);
            return true;
        }
    });
    setContentView(webView);
    webView.loadUrl(item.getUrl());
}

public QuotedMessageMvpView(MessageCompose messageCompose) {
    mQuotedTextShow = (Button) messageCompose.findViewById(R.id.quoted_text_show);
    mQuotedTextBar = messageCompose.findViewById(R.id.quoted_text_bar);
    mQuotedTextEdit = (ImageButton) messageCompose.findViewById(R.id.quoted_text_edit);
    mQuotedTextDelete = (ImageButton) messageCompose.findViewById(R.id.quoted_text_delete);
    mQuotedText = (EolConvertingEditText) messageCompose.findViewById(R.id.quoted_text);
    mQuotedText.getInputExtras(true).putBoolean("allowEmoji", true);

    mQuotedHTML = (MessageWebView) messageCompose.findViewById(R.id.quoted_html);
    mQuotedHTML.configure();
    // Disable the ability to click links in the quoted HTML page. I think this is a nice feature, but if someone
    // feels this should be a preference (or should go away all together), I'm ok with that too. -achen 20101130
    mQuotedHTML.setWebViewClient(new WebViewClient() {
        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            return true;
        }
    });

    mMessageContentView = (EolConvertingEditText) messageCompose.findViewById(R.id.message_content);
}

private void setWebView()
{

    WebSettings webSettings = mWebView.getSettings();
    webSettings.setJavaScriptEnabled(true);//如果访问的页面中要与Javascript交互，则webview必须设置支持Javascript
    webSettings.setUseWideViewPort(true); //将图片调整到适合webview的大小
    webSettings.setLoadWithOverviewMode(true); // 缩放至屏幕的大小
    webSettings.setSupportZoom(true); //支持缩放，默认为true。是下面那个的前提。
    webSettings.setBuiltInZoomControls(true); //设置内置的缩放控件。若为false，则该WebView不可缩放
    webSettings.setDisplayZoomControls(false); //隐藏原生的缩放控件
    webSettings.setAllowFileAccess(true); //设置可以访问文件
    webSettings.setJavaScriptCanOpenWindowsAutomatically(true); //支持通过JS打开新窗口
    webSettings.setLoadsImagesAutomatically(true); //支持自动加载图片
    webSettings.setDefaultTextEncodingName("utf-8");//设置编码格式
    webSettings.setDomStorageEnabled(true);
    mWebView.setWebViewClient(new WebViewClient());
}

private WebViewClient createWebViewClient() {
    return new WebViewClient() {
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            if (url.contains(TimeLinePatterns.WEB_SCHEME) || url.contains("https://")) {
                view.loadUrl(url);
            } else if (!BooheeScheme.handleUrl(HardwareIntroActivity.this, url)) {
                Uri uri = Uri.parse(url);
                if (uri != null) {
                    Intent intent = new Intent();
                    intent.setAction("android.intent.action.VIEW");
                    intent.setData(uri);
                    HardwareIntroActivity.this.startActivity(intent);
                }
            }
            return true;
        }
    };
}

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {

    View v  = inflater.inflate(R.layout.layout_web, container, false);
    WebView w = (WebView) v.findViewById(R.id.webView);
    w.loadUrl("http://p.codekk.com/");
    w.setWebViewClient(new WebViewClient(){
        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            view.loadUrl(url);
            return true;
        }
    });
    return v;
}

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_reg);
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);
    actionBar=getSupportActionBar();
    actionBar.setTitle("Register");

    Bundle bundle=this.getIntent().getExtras();
    url=bundle.getString("url");
    webView = (WebView)findViewById(R.id.webView);
    webView.getSettings().setJavaScriptEnabled(true);
    webView.setWebViewClient(new WebViewClient());
    webView.loadUrl(url);

}

@Override
@SuppressLint("SetJavaScriptEnabled")
protected void onCreate(Bundle savedInstanceState)
{
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_privacy_policy);

  final WebView privacyPolicyWebView = (WebView)findViewById(R.id.privacypolicy);
  privacyPolicyWebView.setVisibility(View.VISIBLE);
  privacyPolicyWebView.getSettings().setJavaScriptEnabled(true);
  privacyPolicyWebView.getSettings().setRenderPriority(RenderPriority.HIGH);
  privacyPolicyWebView.getSettings().setCacheMode(WebSettings.LOAD_DEFAULT);
  privacyPolicyWebView.setWebViewClient(new WebViewClient() { });
  privacyPolicyWebView.resumeTimers();
  privacyPolicyWebView.loadUrl("http://www.soasta.com/privacy-policy");
}

public void load(final String fileName) {

        // Set WebView client
        WebViewClient loadFinishedClient = new WebViewClient() {

            public void onPageFinished(WebView view, String url) {

                // Set platform to android
                JSONObject evt = new JSONObject();
                try {
                    evt.put("name", "android");
                } catch (JSONException e) {
                    WonderLog.logError(e);
                }
                initPlatformSetting(evt.toString());
            }
        };

        setWebViewClient(loadFinishedClient);

        // Load content from URL
        loadUrl(fileName);
    }

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    wv_test = (WebView)findViewById(R.id.wv_test) ;
    wv_test.getSettings().setJavaScriptEnabled(true);
    /* "JSInterface" ==> window.JSInterface
     * class JSInterface all @javascriptInterface methods
     * js can call JSInterface.method()*/
    wv_test.addJavascriptInterface(new JSInterface(MainActivity.this),"JSInterface");
    /* at webivew not brower*/
    wv_test.setWebViewClient(new WebViewClient(){
        @Override
        public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request) {
            return true ;
        }
    });
    wv_test.loadUrl("file:///android_asset/JSInterface.html");
    //wv_test.loadUrl("http://127.0.0.1:8080/JSInterface.html");
}

@SuppressLint("JavascriptInterface")
private void initWebView() {
    mDetailWebView.getSettings().setJavaScriptEnabled(true);


    mDetailWebView.addJavascriptInterface(mPresenter, "web");

    mDetailWebView.setWebViewClient(new WebViewClient() {
        //返回值为true  表示网页点击新的链接操作让我们自己处理
        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            view.loadUrl(url);
            return true;
        }
    });
}

/**
 * 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.
 */
@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);

    // 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) {
        parentEngine.client.clearLoadTimeoutTimer();

        if (view.canGoBack()) {
            view.goBack();
            return;
        } else {
            super.onReceivedError(view, errorCode, description, failingUrl);
        }
    }
    parentEngine.client.onReceivedError(errorCode, description, failingUrl);
}

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_eula);

    toolBarView = (ToolBarView) findViewById(R.id.eula_toolbar);
    webView = (WebView) findViewById(R.id.eula_webview);

    toolBarView.setTitleText("用户服务条款和隐私协议");
    toolBarView.setBackButtonImage(R.mipmap.icon_back);
    toolBarView.setBackButtonVisible(true);
    toolBarView.setBackButtonOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            finish();
        }
    });

    webView.getSettings().setJavaScriptEnabled(true);
    webView.setWebViewClient(new WebViewClient());
    webView.loadUrl(ServerUtil.WVAgreement);

}

private void initWebView() {
    webView.setWebChromeClient(new WebChromeClient() {
        @Override
        public void onProgressChanged(WebView view, int newProgress) {
            super.onProgressChanged(view, newProgress);
            if (newProgress == 100) {
                if (contentLayout != null)
                    contentLayout.showContent();
                if (webView != null)
                    url = webView.getUrl();
            } else {
                if (contentLayout != null)
                    contentLayout.showLoading();
            }
        }
    });
    webView.setWebViewClient(new WebViewClient());
    webView.getSettings().setBuiltInZoomControls(true);
    webView.getSettings().setJavaScriptEnabled(true);
    webView.getSettings().setDomStorageEnabled(true);
    webView.getSettings().setDatabaseEnabled(true);
    webView.getSettings().setCacheMode(WebSettings.LOAD_CACHE_ELSE_NETWORK);
    webView.getSettings().setAppCacheEnabled(true);

    webView.loadUrl(url);
}

@Override
protected void initView() {

    String name = getIntent().getStringExtra("name");
    String url = getIntent().getStringExtra("url");

    //设置沉浸式状态栏
    setStatus();
    iv_search.setVisibility(View.VISIBLE);
    //设置沉浸式状态栏背景
    bar_layout.setBackgroundResource(R.color.black_alpha_5);

    title_text.setText(name);

    wv.setWebViewClient(new WebViewClient() {
        @Override
        public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
            super.onReceivedSslError(view, handler, error);
            handler.proceed();
        }
    });
    wv.getSettings().setJavaScriptEnabled(true);

    wv.loadUrl(url);
}

@Deprecated
private WebViewClient getClient() {

    if (!webClientHelper && AgentWebConfig.WEBVIEW_TYPE != AgentWebConfig.WEBVIEW_AGENTWEB_SAFE_TYPE && mWebViewClient != null) {
        return mWebViewClient;
    } else {
        LogUtils.i(TAG, "isInterceptUnkownScheme:" + isInterceptUnkownScheme + "   openOtherAppWays:" + openOtherAppWays);
        return DefaultWebClient
                .createBuilder()
                .setActivity(this.mActivity)
                .setClient(this.mWebViewClient)
                .setManager(this.mWebViewClientCallbackManager)
                .setWebClientHelper(this.webClientHelper)
                .setPermissionInterceptor(this.mPermissionInterceptor)
                .setWebView(this.mWebCreator.get())
                .setInterceptUnkownScheme(this.isInterceptUnkownScheme)
                .setSchemeHandleType(this.openOtherAppWays)
                .setCfg(this.mDefaultMsgConfig.getWebViewClientMsgCfg())
                .build();
    }


}

@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_load_url);
        webview = (WebView) findViewById(R.id.webview);
        webview.loadUrl("https://www.sawerly.com/beta/cms/3/en");
        webview.getSettings().setUseWideViewPort(true);
        webview.getSettings().setJavaScriptEnabled(true);
//        webview.measure(100,100);
        webview.setWebViewClient(new WebViewClient(){
            @Override
            public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
                super.onReceivedSslError(view, handler, error);
                handler.proceed();
            }
        });
//        webview.setWebChromeClient(new WebChromeClient());
    }

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_post);

    int postId = getIntent().getIntExtra(Constants.KEY_POST_ID, -1);
    if (postId != -1) {
        url = WebUtils.getPostURL(postId);
    }
    title = getIntent().getStringExtra(Constants.KEY_POST_TITLE);

    Toolbar toolbar = (Toolbar) findViewById(R.id.post_toolbar);
    toolbar.setTitle(title);
    setSupportActionBar(toolbar);
    if (getSupportActionBar() != null) { // Toolbar返回按钮
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        getSupportActionBar().setDisplayShowHomeEnabled(true);
    }

    WebView webView = (WebView) findViewById(R.id.story_web_view);
    webView.getSettings().setJavaScriptEnabled(true);
    webView.setWebViewClient(new WebViewClient());
    webView.loadUrl(WebUtils.getPostURL(postId));
}

private void init() {
    mWebView = (WebView) findViewById(R.id.news_webview);
    mWebView.getSettings().setJavaScriptEnabled(true);
    mWebView.getSettings().setCacheMode(WebSettings.LOAD_CACHE_ELSE_NETWORK);
    mWebView.setWebViewClient(new WebViewClient());
    mWebView.setWebChromeClient(new WebChromeClient(){
        @Override
        public void onProgressChanged(WebView view, int newProgress) {
            if (newProgress == 100) {
                closeDialog();
            } else {
                openLoadingDialog(newProgress);
            }
        }
    });

}

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_web_view);
    setTitle("Login");
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);
    Intent intent = getIntent();
    final String url = intent.getStringExtra("url");
    final String queryParam = intent.getStringExtra("queryParam");

    WebView webView = (WebView)findViewById(R.id.webView);
    final WebViewClient client = new LoginWebViewClient(queryParam);
    webView.setWebViewClient(client);
    webView.loadUrl(url);
}

private void initWebView() {
    mContentWebView.getSettings().setUseWideViewPort(false);
    mContentWebView.getSettings().setLoadWithOverviewMode(true);
    mContentWebView.getSettings().setPluginState(WebSettings.PluginState.ON);
    mContentWebView.setWebChromeClient(new WebChromeClient());
    mContentWebView.setWebViewClient(new WebViewClient() {
        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            FragmentFactory.PageType pageType = FragmentFactory.getPageTypeByUrl(url);
            if (mListener != null && pageType == FragmentFactory.PageType.VIEW_IMAGE) {
                mListener.openPage(url, getString(R.string.view_image));
                return true;
            }

            startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(url)));
            return true;
        }
    });
    mContentWebView.getSettings().setJavaScriptEnabled(true);
}

public MuPDFReflowView(Context c, MuPDFCore core, Point parentSize) {
    super(c);
    mHandler = new Handler();
    mCore = core;
    mParentSize = parentSize;
    mScale = 1.0f;
    mContentHeight = parentSize.y;
    getSettings().setJavaScriptEnabled(true);
    addJavascriptInterface(new Object(){
        public void reportContentHeight(String value) {
            mContentHeight = (int)Float.parseFloat(value);
            mHandler.post(new Runnable() {
                public void run() {
                    requestLayout();
                }
            });
        }
    }, "HTMLOUT");
    setWebViewClient(new WebViewClient() {
        @Override
        public void onPageFinished(WebView view, String url) {
            setScale(mScale);
        }
    });
}

@Override
public void onPreviewViewReady(OTWrapper otWrapper, View localView) throws ListenerException {
    Log.i(LOG_TAG, "Local preview view is ready");
    if (isScreenSharing) {
        //Share local web view
        mScreenSharingView = localView;
        mWebViewContainer.setWebViewClient(new WebViewClient());
        WebSettings webSettings = mWebViewContainer.getSettings();
        webSettings.setJavaScriptEnabled(true);
        mWebViewContainer.setLayerType(View.LAYER_TYPE_SOFTWARE, null);
        mWebViewContainer.loadUrl("http://www.tokbox.com");
    } else {
        //audio/video call view
        Participant participant = new Participant(Participant.Type.LOCAL, mWrapper.getLocalStreamStatus(), getParticipantSize());
        addNewParticipant(participant);
    }
}

private void setupWebView() {
    WebSettings settings = mWvWebview.getSettings();

    settings.setJavaScriptEnabled(true);
    settings.setSupportZoom(false);
    settings.setLayoutAlgorithm(WebSettings.LayoutAlgorithm.SINGLE_COLUMN);
    settings.setCacheMode(WebSettings.LOAD_CACHE_ELSE_NETWORK);
    settings.setDomStorageEnabled(true);

    WebViewClient webViewClient = new WebViewClient() {
        @Override
        public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request) {
            view.loadUrl(String.valueOf(request.getUrl()));
            return true;
        }
    };

    mWvWebview.setWebViewClient(webViewClient);
}

@SuppressLint({"SetJavaScriptEnabled"})
private void initWebView() {
    this.webview.getSettings().setJavaScriptEnabled(true);
    this.webview.getSettings().setLayoutAlgorithm(LayoutAlgorithm.SINGLE_COLUMN);
    this.webview.setVerticalScrollBarEnabled(false);
    this.webview.setVerticalScrollbarOverlay(false);
    this.webview.setHorizontalScrollBarEnabled(false);
    this.webview.setHorizontalScrollbarOverlay(false);
    this.webview.loadUrl(UrlUtils.handleUrl(BooheeClient.build(BooheeClient.ONE)
            .getDefaultURL(String.format(URL_GOODS, new Object[]{Integer.valueOf(this.mGoods
                    .id)}))));
    this.webview.setWebViewClient(new WebViewClient() {
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            if (TextUtils.isEmpty(url) || GoodsHomeFragment.this.mGoods == null) {
                return false;
            }
            if (url.contains("boohee://channel_posts")) {
                GoodsHomeFragment.this.onGoodsPageChangeListener.onGoodsPageChange(GoodsTab
                        .POST.getPosition());
            } else {
                BooheeScheme.handleUrl(GoodsHomeFragment.this.getActivity(), url);
            }
            return true;
        }
    });
}

private void initWebView() {
    if (this.mWebView == null) {
        this.mWebView = new WebView(this);
        this.mWebView.setBackgroundColor(-1);
        this.rootView.addView(this.mWebView, new LayoutParams(-1, -1));
        this.mWebView.getSettings().setUseWideViewPort(true);
        this.mWebView.getSettings().setSupportZoom(true);
        this.mWebView.getSettings().setBuiltInZoomControls(true);
        this.mWebView.setVerticalScrollBarEnabled(true);
        this.mWebView.setHorizontalScrollBarEnabled(true);
        this.mWebView.getSettings().setJavaScriptEnabled(true);
        this.mWebView.getSettings().setDomStorageEnabled(true);
        this.mWebView.setWebViewClient(new WebViewClient() {
            public boolean shouldOverrideUrlLoading(WebView view, String url) {
                AlbumPlayActivity.this.mWebView.loadUrl(url);
                return super.shouldOverrideUrlLoading(view, url);
            }
        });
        this.mWebView.setClickable(false);
    }
}

private void init(){
    LinearLayout layout = (LinearLayout) findViewById(R.id.Download_layout);
    layout.setVisibility(View.GONE);

    Intent intent = getIntent();
    body = intent.getStringExtra("body");
    title = intent.getStringExtra("title");
    contentView = (WebView) findViewById(R.id.content_webview);
    contentView.setHorizontalScrollBarEnabled(false);//水平不显示
    contentView.setVerticalScrollBarEnabled(false); //垂直不显示

    contentView.setOnTouchListener(new View.OnTouchListener() {
        @Override
        public boolean onTouch(View v, MotionEvent event) {
            return (event.getAction() == MotionEvent.ACTION_MOVE);
        }
    });
    contentView.setWebViewClient(new WebViewClient());

    topImage = (ImageView) findViewById(R.id.top_image);
    topTitle = (TextView) findViewById(R.id.top_titlt);
    topSource = (TextView) findViewById(R.id.top_source);
}

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

    setContentView(R.layout.login_webview_activity);

    WebView webView = findViewById(R.id.webview);
    WebSettings webSettings = webView.getSettings();
    webView.setWebViewClient(new WebViewClient());
    webSettings.setJavaScriptEnabled(true);

    String url = getIntent().getStringExtra("url");
    if (url == null) {
        url = "file:///android_res/raw/sample_form.html";
    }
    if (DEBUG) Log.d(TAG, "Clearing WebView data");
    webView.clearHistory();
    webView.clearFormData();
    webView.clearCache(true);
    Log.i(TAG, "Loading URL " + url);
    webView.loadUrl(url);
}

@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_global_web_view);
        ButterKnife.bind(this);
        Intent intent = getIntent();
        String herf = intent.getSerializableExtra("news").toString();
        name = intent.getSerializableExtra("name").toString();
        glWbTitle.setText("【11-11预售】" + name);
//        listbean = (News.ParentDataBean.ListBean.ListDataBean) getIntent().getSerializableExtra("news");
//        String path = listbean.getHref();
        setWebView();
        WebViewClient client = new WebViewClient();
        //在点击请求的是链接是才会调用，重写此方法返回true表明点击网页里面的链接还是在当前的webview里跳转，不跳到浏览器那边。这个函数我们可以做很多操作，比如我们读取到某些特殊的URL，于是就可以不打开地址，取消这个操作，进行预先定义的其他操作，这对一个程序是非常必要的
        client.shouldOverrideUrlLoading(wvNewContent, null);
        wvNewContent.setWebViewClient(client);
        //把网站给WebView
        wvNewContent.loadUrl(herf);
    }

public static void initWebViewSettings(WebView webView) {
    WebSettings settings = webView.getSettings();
    //这个单位是SP
    settings.setDefaultFontSize(15);

    settings.setJavaScriptEnabled(true);  //支持js

    settings.setUseWideViewPort(false);  //将图片调整到适合webview的大小

    settings.setSupportZoom(true);  //支持缩放

    settings.setCacheMode(WebSettings.LOAD_CACHE_ELSE_NETWORK);//无论是否有网络，只要本地有缓存，都使用缓存。本地没有缓存时才从网络上获取。 这里的WebView主要是用来加载图片和解析Html文本

    settings.setLayoutAlgorithm(WebSettings.LayoutAlgorithm.SINGLE_COLUMN); //支持内容重新布局

    webView.setWebViewClient(new WebViewClient(){
        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            //使超链接失效
            return true;
        }
    });

}

private void optionChangelog() {
    WebView webview = new WebView(this);
    webview.setWebViewClient(new WebViewClient() {
        public void onPageFinished(WebView view, String url) {
            int userId = Util.getUserId(Process.myUid());
            Version currentVersion = new Version(Util.getSelfVersionName(ActivityMain.this));
            PrivacyManager.setSetting(userId, PrivacyManager.cSettingChangelog, currentVersion.toString());
        }
    });
    webview.loadUrl("https://github.com/M66B/XPrivacy/blob/master/CHANGELOG.md");

    AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(this);
    alertDialogBuilder.setTitle(R.string.menu_changelog);
    alertDialogBuilder.setIcon(getThemed(R.attr.icon_launcher));
    alertDialogBuilder.setView(webview);
    AlertDialog alertDialog = alertDialogBuilder.create();
    alertDialog.show();
}

private void showHereMapsTerms() {
    Crashlytics.log(Log.INFO, SettingsActivity.class.getSimpleName(), "showHereMapsTerms()");

    WebView webView = new WebView(this);
    webView.setWebViewClient(new WebViewClient());
    webView.loadUrl(getString(R.string.here_maps_terms_url));

    new AlertDialog.Builder(this)
            .setView(webView)
            .setCancelable(true)
            .setPositiveButton(R.string.accept_terms_button_text, new DialogInterface.OnClickListener() {
                public void onClick(final DialogInterface dialog, final int id) {
                    Prefs.setHereMapsTermsAccepted(SettingsActivity.this, true);
                    limitProviderSelectorHandler(true); //Set limit provider now that terms have been accepted
                    Answers.getInstance().logCustom(new CustomEvent("Enabled HERE"));
                }})
            .setNegativeButton(R.string.reject_terms_button_text, null)
            .show();
}

private static void initWebView(WebView webview) {
    webview.setFocusable(true);
    webview.setInitialScale(0); // imdb does not look good in fullscreen with anything but this
    webview.getSettings().setJavaScriptEnabled(true);
    webview.setWebViewClient(new WebViewClient() {
        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            if (DBG) Log.d(TAG, "shouldOverrideUrlLoading " + url);
            return false;
        }
    });
    // Remove 'Mobile' from the user agent to avoid phone-version of IMDB on TV screen...
    String userAgent = webview.getSettings().getUserAgentString();
    userAgent = userAgent.replace("Mobile", " ");
    webview.getSettings().setUserAgentString(userAgent);
}

/**
 * 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 errorCode   The error code corresponding to an ERROR_* value.
 * @param description A String describing the error.
 * @param failingUrl  The url that failed to load.
 */
public void onReceivedError(final int errorCode, final String description, final String failingUrl) {
    final CordovaActivity me = this;

    // If errorUrl specified, then load it
    final String errorUrl = preferences.getString("errorUrl", null);
    if ((errorUrl != null) && (!failingUrl.equals(errorUrl)) && (appView != null)) {
        // Load URL on UI thread
        me.runOnUiThread(new Runnable() {
            public void run() {
                me.appView.showWebPage(errorUrl, false, true, null);
            }
        });
    }
    // If not, then display error dialog
    else {
        final boolean exit = !(errorCode == WebViewClient.ERROR_HOST_LOOKUP);
        me.runOnUiThread(new Runnable() {
            public void run() {
                if (exit) {
                    me.appView.getView().setVisibility(View.GONE);
                    me.displayError("Application Error", description + " (" + failingUrl + ")", "OK", exit);
                }
            }
        });
    }
}

/**
 * Closes the dialog
 */
public void closeDialog() {
    this.cordova.getActivity().runOnUiThread(new Runnable() {
        @Override
        public void run() {
            final WebView childView = inAppWebView;
            // The JS protects against multiple calls, so this should happen only when
            // closeDialog() is called by other native code.
            if (childView == null) {
                return;
            }

            childView.setWebViewClient(new WebViewClient() {
                // NB: wait for about:blank before dismissing
                public void onPageFinished(WebView view, String url) {
                    if (dialog != null) {
                        dialog.dismiss();
                        dialog = null;
                    }
                }
            });
            // NB: From SDK 19: "If you call methods on WebView from any thread
            // other than your app's UI thread, it can cause unexpected results."
            // http://developer.android.com/guide/webapps/migrating.html#Threads
            childView.loadUrl("about:blank");

            try {
                JSONObject obj = new JSONObject();
                obj.put("type", EXIT_EVENT);
                sendUpdate(obj, false);
            } catch (JSONException ex) {
                LOG.d(LOG_TAG, "Should never happen");
            }
        }
    });
}

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.place_details);
    mContext = this;
    mResources = getResources();

    mMapFragment = (SupportMapFragment)
            getSupportFragmentManager().findFragmentById(R.id.place_map);

    mMapFragment.getMapAsync(new OnMapReadyCallback() {
        @Override
        public void onMapReady(GoogleMap map) {
            mMap = map;
            updateUI();
        }
    });

    mPlaceId = getIntent().getIntExtra(EXTRA_PLACE_POSITION, -1);
    final VisitableGenerator generator = VisitableGenerator.get(this);
    mPlace = generator.getPlace(mPlaceId);
    mLocation = new Location("");
    mLocation.set(mPlace.getLocation());

    mPlaceImageViewFull = (ImageView) findViewById(R.id.place_image_full);
    mPlaceCaption = (TextView) findViewById(R.id.place_caption_full);
    mWebView = (WebView) findViewById(R.id.web_view);
    mBackupEmptyView = (TextView) findViewById(R.id.place_backup_empty_view);
    mIndicator = (ProgressBar) findViewById(R.id.indicator);
    mVisitedCheckBox = (CheckBox) findViewById(R.id.visited_check_box);

    mProgressBar = (ProgressBar) findViewById(R.id.progress_bar);
    mProgressBar.setMax(100);

    mWebView.setWebChromeClient(new WebChromeClient() {

        @Override
        public void onProgressChanged(WebView webView, int newProgress) {
            if (newProgress == 100) {
                mProgressBar.setVisibility(View.GONE);
            } else {
                mProgressBar.setVisibility(View.VISIBLE);
                mProgressBar.setProgress(newProgress);
            }
        }
    });
    mWebView.setWebViewClient(new WebViewClient());
    mWebView.loadUrl(mPlace.getWikiUrl());

    Bitmap bitmap = PictureUtils.decodeBitmapFromResource(getResources(),
            mPlace.getImgResourceId(), 400, 400);

    mPlaceImageViewFull.setImageBitmap(bitmap);
    mPlaceCaption.setText(mPlace.getPlaceNameResId());
    this.getSupportActionBar().setTitle(mPlace.getPlaceNameResId());

    mVisitedCheckBox.setChecked(mPlace.isVisited());
    mVisitedCheckBox.setOnCheckedChangeListener(
            new CompoundButton.OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(CompoundButton view, boolean isChecked) {
            mPlace.setVisited(isChecked);
        }
    });

    mConnManager = (ConnectivityManager) mContext.getSystemService(Context.CONNECTIVITY_SERVICE);

    NetworkInfo activeNetwork = mConnManager.getActiveNetworkInfo();
    boolean isConnected = activeNetwork != null && activeNetwork.isConnected();

    if (!isConnected) {
        mIndicator.setVisibility(View.INVISIBLE);
        mBackupEmptyView.setText(R.string.empty_placeholder);
    }
}

@SuppressLint("SetJavaScriptEnabled")
private void initWebView() {
    webView = findViewById(R.id.webView);
    WebSettings webSetting = webView.getSettings();
    webSetting.setJavaScriptEnabled(true);
    webView.setWebViewClient(new WebViewClient());
    webView.setWebChromeClient(new WebChromeClient());
    // 这个链接可以测试鼠标拖动的轨迹，通过画线的痕迹
    // webView.loadUrl("https://muro.deviantart.com/");
    webView.loadUrl("http://www.baidu.com");
    webView.requestFocus();
}

@SuppressLint("SetJavaScriptEnabled")
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_practice_qqbrowser);

    final Toolbar toolbar = (Toolbar)findViewById(R.id.toolbar);
    toolbar.setNavigationOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            finish();
        }
    });

    final WebView webView = (WebView) findViewById(R.id.webView);
    webView.loadUrl("https://github.com/scwang90/SmartRefreshLayout");
    webView.getSettings().setJavaScriptEnabled(true);
    webView.setWebViewClient(new WebViewClient(){
        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            view.loadUrl(url);
            return true;
        }
    });

    //状态栏透明和间距处理
    StatusBarUtil.immersive(this);
    StatusBarUtil.setPaddingSmart(this, toolbar);
}

/**
 * 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.
 */
@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);
}

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    WebView webView = (WebView) findViewById(R.id.web_view);
    webView.getSettings().setJavaScriptEnabled(true);
    webView.setWebViewClient(new WebViewClient());
    webView.loadUrl("http://www.baidu.com");
}

private void setWeb() {
    web.setWebViewClient(new WebViewClient() {

        boolean authComplete = false;

        @Override
        public void onPageFinished(WebView view, String url) {
            String authCode;

            progressBar.setVisibility(View.GONE);

            if (url.contains("?code=") && !authComplete) {
                authComplete = true;
                Uri uri = Uri.parse(url);
                authCode = uri.getQueryParameter("code");
                web.setVisibility(View.GONE);
                tapToRetry.setVisibility(View.GONE);
                getToken(authCode);
            } else if (url.contains("error=access_denied")) {
                authComplete = true;
                Toast.makeText(getApplicationContext(), "Trakt access denied", Toast.LENGTH_SHORT).show();
                Intent resultIntent = new Intent();
                setResult(Activity.RESULT_CANCELED, resultIntent);
                finish();
            }
            super.onPageFinished(view, url);
        }
    });

    if (!DetectConnection.checkInternetConnection(this)) {
        tvError.setText(R.string.network_error);
        tapToRetry.setVisibility(View.VISIBLE);
        progressBar.setVisibility(View.GONE);
        web.setVisibility(View.GONE);
    } else {
        web.clearCache(true);
        web.clearHistory();
        web.loadUrl(url);
    }
}