import android.webkit.WebView; //导入方法依赖的package包/类

public LightningView(@NonNull Activity activity, @Nullable String url, boolean isIncognito) {

BrowserApp.getAppComponent().inject(this);

mActivity = activity;

mUIController = (UIController) activity;

mWebView = new WebView(activity);

if (Build.VERSION.SDK_INT > Build.VERSION_CODES.JELLY_BEAN) {

mWebView.setId(View.generateViewId());

}

mIsIncognitoTab = isIncognito;

mTitle = new LightningViewTitle(activity);

sMaxFling = ViewConfiguration.get(activity).getScaledMaximumFlingVelocity();

mWebView.setDrawingCacheBackgroundColor(Color.WHITE);

mWebView.setFocusableInTouchMode(true);

mWebView.setFocusable(true);

mWebView.setDrawingCacheEnabled(false);

mWebView.setWillNotCacheDrawing(true);

if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.LOLLIPOP_MR1) {

//noinspection deprecation

mWebView.setAnimationCacheEnabled(false);

//noinspection deprecation

mWebView.setAlwaysDrawnWithCacheEnabled(false);

}

mWebView.setBackgroundColor(Color.WHITE);

mWebView.setScrollbarFadingEnabled(true);

mWebView.setSaveEnabled(true);

mWebView.setNetworkAvailable(true);

mWebView.setWebChromeClient(new LightningChromeClient(activity, this));

mWebView.setWebViewClient(new LightningWebClient(activity, this));

mWebView.setDownloadListener(new LightningDownloadListener(activity));

mGestureDetector = new GestureDetector(activity, new CustomGestureListener());

mWebView.setOnTouchListener(new TouchListener());

sDefaultUserAgent = mWebView.getSettings().getUserAgentString();

initializeSettings();

initializePreferences(activity);

if (url != null) {

if (!url.trim().isEmpty()) {

mWebView.loadUrl(url, mRequestHeaders);

} else {

// don't load anything, the user is looking for a blank tab

}

} else {

loadHomepage();

}

}