private synchronized void initWebSettings() {
if (android.os.Build.VERSION.SDK_INT >= 21) WebView.enableSlowWholeDocumentDraw();
WebSettings webSettings = getSettings();
userAgentOriginal = webSettings.getUserAgentString();
webSettings.setAllowContentAccess(true);
webSettings.setAllowFileAccess(true);
webSettings.setAllowFileAccessFromFileURLs(true);
webSettings.setAllowUniversalAccessFromFileURLs(true);
webSettings.setAppCacheEnabled(true);
webSettings.setAppCachePath(context.getCacheDir().toString());
webSettings.setCacheMode(WebSettings.LOAD_DEFAULT);
webSettings.setDatabaseEnabled(true);
webSettings.setDomStorageEnabled(true);
webSettings.setGeolocationDatabasePath(context.getFilesDir().toString());
webSettings.setSupportZoom(true);
webSettings.setBuiltInZoomControls(true);
webSettings.setDisplayZoomControls(false);
webSettings.setDefaultTextEncodingName(BrowserUnit.URL_ENCODING);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
webSettings.setLoadsImagesAutomatically(true);
} else {
webSettings.setLoadsImagesAutomatically(false);
}
}
public static void initializeSettings(WebSettings settings, Context context) {
settings.setJavaScriptEnabled(true);
settings.setJavaScriptCanOpenWindowsAutomatically(true);
settings.setUserAgentString(settings.getUserAgentString() + DB.USER_AGENT);
settings.setSupportMultipleWindows(true);
settings.setSaveFormData(false);
settings.setSavePassword(false); // 设置为true,系统会弹出AlertDialog确认框
if (API < 18) {
settings.setAppCacheMaxSize(Long.MAX_VALUE);
}
if (API < 17) {
settings.setEnableSmoothTransition(true);
}
if (API < 19) {
settings.setDatabasePath(context.getFilesDir().getAbsolutePath() + "/databases");
}
settings.setDomStorageEnabled(true);
settings.setAppCachePath(context.getCacheDir().toString());
settings.setAppCacheEnabled(true);
settings.setCacheMode(WebSettings.LOAD_NO_CACHE);
settings.setGeolocationDatabasePath(context.getCacheDir().getAbsolutePath());
settings.setAllowFileAccess(true);
settings.setDatabaseEnabled(true);
settings.setSupportZoom(true);
settings.setBuiltInZoomControls(true);
settings.setDisplayZoomControls(false);
settings.setAllowContentAccess(true);
settings.setDefaultTextEncodingName("utf-8");
/*if (API > 16) {
settings.setAllowFileAccessFromFileURLs(false);
settings.setAllowUniversalAccessFromFileURLs(false);
}*/
}
private String getUserAgent() {
if (Build.VERSION.SDK_INT < 19) {
WebView webView = new WebView(this);
WebSettings settings = webView.getSettings();
return settings.getUserAgentString();
}
// api >= 19
return WebSettings.getDefaultUserAgent(this);
}
@SuppressLint("SetJavaScriptEnabled")
@SuppressWarnings("deprecation")
private void initWebViewSettings() {
this.setInitialScale(0);
this.setVerticalScrollBarEnabled(false);
// TODO: The Activity is the one that should call requestFocus().
if (shouldRequestFocusOnInit()) {
this.requestFocusFromTouch();
}
this.setInitialScale(0);
this.setVerticalScrollBarEnabled(false);
if (shouldRequestFocusOnInit()) {
this.requestFocusFromTouch();
}
// Enable JavaScript
final WebSettings settings = this.getSettings();
settings.setJavaScriptEnabled(true);
settings.setJavaScriptCanOpenWindowsAutomatically(true);
settings.setLayoutAlgorithm(LayoutAlgorithm.NORMAL);
// Set the nav dump for HTC 2.x devices (disabling for ICS, deprecated entirely for Jellybean
// 4.2)
try {
Method gingerbread_getMethod =
WebSettings.class.getMethod("setNavDump", new Class[] {boolean.class});
String manufacturer = android.os.Build.MANUFACTURER;
Log.d(TAG, "CordovaWebView is running on device made by: " + manufacturer);
if (android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.HONEYCOMB
&& android.os.Build.MANUFACTURER.contains("HTC")) {
gingerbread_getMethod.invoke(settings, true);
}
} catch (NoSuchMethodException e) {
Log.d(TAG, "We are on a modern version of Android, we will deprecate HTC 2.3 devices in 2.8");
} catch (IllegalArgumentException e) {
Log.d(TAG, "Doing the NavDump failed with bad arguments");
} catch (IllegalAccessException e) {
Log.d(
TAG, "This should never happen: IllegalAccessException means this isn't Android anymore");
} catch (InvocationTargetException e) {
Log.d(
TAG,
"This should never happen: InvocationTargetException means this isn't Android anymore.");
}
// We don't save any form data in the application
settings.setSaveFormData(false);
settings.setSavePassword(false);
// Jellybean rightfully tried to lock this down. Too bad they didn't give us a whitelist
// while we do this
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.JELLY_BEAN) {
Level16Apis.enableUniversalAccess(settings);
}
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.JELLY_BEAN_MR1) {
Level17Apis.setMediaPlaybackRequiresUserGesture(settings, false);
}
// Enable database
// We keep this disabled because we use or shim to get around DOM_EXCEPTION_ERROR_16
String databasePath =
getContext().getApplicationContext().getDir("database", Context.MODE_PRIVATE).getPath();
settings.setDatabaseEnabled(true);
settings.setDatabasePath(databasePath);
// Determine whether we're in debug or release mode, and turn on Debugging!
ApplicationInfo appInfo = getContext().getApplicationContext().getApplicationInfo();
if ((appInfo.flags & ApplicationInfo.FLAG_DEBUGGABLE) != 0
&& android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.KITKAT) {
enableRemoteDebugging();
}
settings.setGeolocationDatabasePath(databasePath);
// Enable DOM storage
settings.setDomStorageEnabled(true);
// Enable built-in geolocation
settings.setGeolocationEnabled(true);
// Enable AppCache
// Fix for CB-2282
settings.setAppCacheMaxSize(5 * 1048576);
settings.setAppCachePath(databasePath);
settings.setAppCacheEnabled(true);
// Fix for CB-1405
// Google issue 4641
settings.getUserAgentString();
IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction(Intent.ACTION_CONFIGURATION_CHANGED);
if (this.receiver == null) {
this.receiver =
new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
settings.getUserAgentString();
}
};
getContext().registerReceiver(this.receiver, intentFilter);
}
// end CB-1405
}
private void createAndInitializeWebView() {
WebView webview = new WebView(this);
WebSettings settings = webview.getSettings();
initializeSettings(settings);
Matcher matcher = WEBVIEW_VERSION_PATTERN.matcher(settings.getUserAgentString());
if (matcher.find()) {
mWebViewVersion = matcher.group(2);
} else {
mWebViewVersion = "-";
}
setTitle(getResources().getString(R.string.title_activity_browser) + " " + mWebViewVersion);
webview.setWebViewClient(
new WebViewClient() {
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
setUrlBarText(url);
}
@Override
public void onPageFinished(WebView view, String url) {
setUrlBarText(url);
}
@Override
public boolean shouldOverrideUrlLoading(WebView webView, String url) {
// "about:" and "chrome:" schemes are internal to Chromium;
// don't want these to be dispatched to other apps.
if (url.startsWith("about:") || url.startsWith("chrome:")) {
return false;
}
return startBrowsingIntent(WebViewBrowserActivity.this, url);
}
@Override
public void onReceivedError(
WebView view, int errorCode, String description, String failingUrl) {
setUrlFail(true);
}
});
webview.setWebChromeClient(
new WebChromeClient() {
@Override
public Bitmap getDefaultVideoPoster() {
return Bitmap.createBitmap(
new int[] {Color.TRANSPARENT}, 1, 1, Bitmap.Config.ARGB_8888);
}
@Override
public void onGeolocationPermissionsShowPrompt(
String origin, GeolocationPermissions.Callback callback) {
onPermissionRequest(new GeoPermissionRequest(origin, callback));
}
@Override
public void onPermissionRequest(PermissionRequest request) {
WebViewBrowserActivity.this.requestPermissionsForPage(request);
}
});
mWebView = webview;
getContainer()
.addView(webview, new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
setUrlBarText("");
}