Enhanced WebView component for Android that works as intended out of the box
- Android 2.2+
- Add this library to your project
-
Declare the Gradle repository in your root
build.gradleallprojects { repositories { maven { url "https://jitpack.io" } } }
-
Declare the Gradle dependency in your app module's
build.gradledependencies { implementation 'com.github.delight-im:Android-AdvancedWebView:v3.2.1' }
-
<uses-permission android:name="android.permission.INTERNET" /><im.delight.android.webview.AdvancedWebView
android:id="@+id/webview"
android:layout_width="match_parent"
android:layout_height="match_parent" />public class MyActivity extends Activity implements AdvancedWebView.Listener {
private AdvancedWebView mWebView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my);
mWebView = (AdvancedWebView) findViewById(R.id.webview);
mWebView.setListener(this, this);
mWebView.setMixedContentAllowed(false);
mWebView.loadUrl("http://www.example.org/");
// ...
}
@SuppressLint("NewApi")
@Override
protected void onResume() {
super.onResume();
mWebView.onResume();
// ...
}
@SuppressLint("NewApi")
@Override
protected void onPause() {
mWebView.onPause();
// ...
super.onPause();
}
@Override
protected void onDestroy() {
mWebView.onDestroy();
// ...
super.onDestroy();
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent intent) {
super.onActivityResult(requestCode, resultCode, intent);
mWebView.onActivityResult(requestCode, resultCode, intent);
// ...
}
@Override
public void onBackPressed() {
if (!mWebView.onBackPressed()) { return; }
// ...
super.onBackPressed();
}
@Override
public void onPageStarted(String url, Bitmap favicon) { }
@Override
public void onPageFinished(String url) { }
@Override
public void onPageError(int errorCode, String description, String failingUrl) { }
@Override
public void onDownloadRequested(String url, String suggestedFilename, String mimeType, long contentLength, String contentDisposition, String userAgent) { }
@Override
public void onExternalPageRequest(String url) { }
}Note: If you're using the Fragment class from the support library (android.support.v4.app.Fragment), please refer to the next section (see below) instead of this one.
public class MyFragment extends Fragment implements AdvancedWebView.Listener {
private AdvancedWebView mWebView;
public MyFragment() { }
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_my, container, false);
mWebView = (AdvancedWebView) rootView.findViewById(R.id.webview);
mWebView.setListener(this, this);
mWebView.setMixedContentAllowed(false);
mWebView.loadUrl("http://www.example.org/");
// ...
return rootView;
}
@SuppressLint("NewApi")
@Override
public void onResume() {
super.onResume();
mWebView.onResume();
// ...
}
@SuppressLint("NewApi")
@Override
public void onPause() {
mWebView.onPause();
// ...
super.onPause();
}
@Override
public void onDestroy() {
mWebView.onDestroy();
// ...
super.onDestroy();
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent intent) {
super.onActivityResult(requestCode, resultCode, intent);
mWebView.onActivityResult(requestCode, resultCode, intent);
// ...
}
@Override
public void onPageStarted(String url, Bitmap favicon) { }
@Override
public void onPageFinished(String url) { }
@Override
public void onPageError(int errorCode, String description, String failingUrl) { }
@Override
public void onDownloadRequested(String url, String suggestedFilename, String mimeType, long contentLength, String contentDisposition, String userAgent) { }
@Override
public void onExternalPageRequest(String url) { }
}-
Use the code for normal
Fragmentusage as shown above -
Change
mWebView.setListener(this, this);
to
mWebView.setListener(getActivity(), this);
-
Add the following code to the parent
FragmentActivityin order to forward the results from theFragmentActivityto the appropriateFragmentinstancepublic class MyActivity extends FragmentActivity implements AdvancedWebView.Listener { @Override public void onActivityResult(int requestCode, int resultCode, Intent intent) { super.onActivityResult(requestCode, resultCode, intent); if (mFragment != null) { mFragment.onActivityResult(requestCode, resultCode, intent); } } }
-keep class * extends android.webkit.WebChromeClient { *; }
-dontwarn im.delight.android.webview.**
If you want to serve sites or just single resources over plain http instead of https, there’s usually nothing to do if you’re targeting Android 8.1 (API level 27) or earlier. On Android 9 (API level 28) and later, however, cleartext support is disabled by default. You may have to set android:usesCleartextTraffic="true" on the <application> element in AndroidManifest.xml or provide a custom network security configuration.
-
Optimized for best performance and security
-
Features are patched across Android versions
-
File uploads are handled automatically (check availability with
AdvancedWebView.isFileUploadAvailable())- Multiple file uploads via single input fields (
multipleattribute in HTML) are supported on Android 5.0+. The application that is used to pick the files (i.e. usually a gallery or file manager app) must provide controls for selecting multiple files, which some apps don't.
- Multiple file uploads via single input fields (
-
JavaScript and WebStorage are enabled by default
-
Includes localizations for the 25 most widely spoken languages
-
Receive callbacks when pages start/finish loading or have errors
@Override public void onPageStarted(String url, Bitmap favicon) { // a new page started loading } @Override public void onPageFinished(String url) { // the new page finished loading } @Override public void onPageError(int errorCode, String description, String failingUrl) { // the new page failed to load }
-
Downloads are handled automatically and can be listened to
@Override public void onDownloadRequested(String url, String suggestedFilename, String mimeType, long contentLength, String contentDisposition, String userAgent) { // some file is available for download // either handle the download yourself or use the code below if (AdvancedWebView.handleDownload(this, url, suggestedFilename)) { // download successfully handled } else { // download couldn't be handled because user has disabled download manager app on the device // TODO show some notice to the user } }
-
Enable geolocation support (needs
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />)mWebView.setGeolocationEnabled(true);
-
Add custom HTTP headers in addition to the ones sent by the web browser implementation
mWebView.addHttpHeader("X-Requested-With", "My wonderful app");
-
Define a custom set of permitted hostnames and receive callbacks for all other hostnames
mWebView.addPermittedHostname("example.org");
and
@Override public void onExternalPageRequest(String url) { // the user tried to open a page from a non-permitted hostname }
-
Prevent caching of HTML pages
boolean preventCaching = true; mWebView.loadUrl("http://www.example.org/", preventCaching);
-
Check for alternative browsers installed on the device
if (AdvancedWebView.Browsers.hasAlternative(this)) { AdvancedWebView.Browsers.openUrl(this, "http://www.example.org/"); }
-
Disable cookies
// disable third-party cookies only mWebView.setThirdPartyCookiesEnabled(false); // or disable cookies in general mWebView.setCookiesEnabled(false);
-
Allow or disallow (both passive and active) mixed content (HTTP content being loaded inside HTTPS sites)
mWebView.setMixedContentAllowed(true); // or mWebView.setMixedContentAllowed(false);
-
Switch between mobile and desktop mode
mWebView.setDesktopMode(true); // or // mWebView.setDesktopMode(false);
-
Load HTML file from “assets” (e.g. at
app/src/main/assets/html/index.html)mWebView.loadUrl("file:///android_asset/html/index.html");
-
Load HTML file from SD card
// <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /> if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) { mWebView.getSettings().setAllowFileAccess(true); mWebView.loadUrl("file:///sdcard/Android/data/com.my.app/my_folder/index.html"); }
-
Load HTML source text and display as page
myWebView.loadHtml("<html>...</html>"); // or final String myBaseUrl = "http://www.example.com/"; myWebView.loadHtml("<html>...</html>", myBaseUrl);
-
Enable multi-window support
myWebView.getSettings().setSupportMultipleWindows(true); // myWebView.getSettings().setJavaScriptEnabled(true); // myWebView.getSettings().setJavaScriptCanOpenWindowsAutomatically(true); myWebView.setWebChromeClient(new WebChromeClient() { @Override public boolean onCreateWindow(WebView view, boolean isDialog, boolean isUserGesture, Message resultMsg) { AdvancedWebView newWebView = new AdvancedWebView(MyNewActivity.this); // myParentLayout.addView(newWebView, LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT); WebView.WebViewTransport transport = (WebView.WebViewTransport) resultMsg.obj; transport.setWebView(newWebView); resultMsg.sendToTarget(); return true; } }
All contributions are welcome! If you wish to contribute, please create an issue first so that your feature, problem or question can be discussed.
This project is licensed under the terms of the MIT License.
React
Typescript
Django
Laravel
Facebook
Microsoft
Google
Alibaba
D3
Tencent
