WebView and HTML5 <video>
It is possible to view a video element (video html5 tag) within a WebView, but I must say I had to deal with it for few days. These are the steps I had to follow so far:
Find a properly encoded video
When initializing the WebView, set the JavaScript, Plug-ins the WebViewClient and the WebChromeClient.
url = new String("http://broken-links.com/tests/video/"); mWebView = (WebView) findViewById(R.id.webview); mWebView.setWebChromeClient(chromeClient); mWebView.setWebViewClient(wvClient); mWebView.getSettings().setJavaScriptEnabled(true); mWebView.getSettings().setPluginState(PluginState.ON); mWebView.loadUrl(url);Handle the onShowCustomView in the WebChromeClient object.
@Override public void onShowCustomView(View view, CustomViewCallback callback) { super.onShowCustomView(view, callback); if (view instanceof FrameLayout){ FrameLayout frame = (FrameLayout) view; if (frame.getFocusedChild() instanceof VideoView){ VideoView video = (VideoView) frame.getFocusedChild(); frame.removeView(video); a.setContentView(video); video.setOnCompletionListener(this); video.setOnErrorListener(this); video.start(); } } }Handle the onCompletion and the onError events for the video, in order to get back to the web view.
public void onCompletion(MediaPlayer mp) { Log.d(TAG, "Video completo"); a.setContentView(R.layout.main); WebView wb = (WebView) a.findViewById(R.id.webview); a.initWebView(); }
But now I should say there are still an important issue. I can play it only once. The second time I click on the video dispatcher (either the poster or some play button), it does nothing.
I would also like the video to play inside the WebView frame, instead of opening the Media Player window, but this is for me a secondary issue.
After long research, I got this thing working. See the following code:
Test.java
import android.app.Activity;
import android.os.Bundle;
import android.view.KeyEvent;
public class Test extends Activity {
HTML5WebView mWebView;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mWebView = new HTML5WebView(this);
if (savedInstanceState != null) {
mWebView.restoreState(savedInstanceState);
} else {
mWebView.loadUrl("http://192.168.1.18/xxxxxxxxxxxxxxxx/");
}
setContentView(mWebView.getLayout());
}
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
mWebView.saveState(outState);
}
@Override
public void onStop() {
super.onStop();
mWebView.stopLoading();
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK) {
if (mWebView.inCustomView()) {
mWebView.hideCustomView();
// mWebView.goBack();
//mWebView.goBack();
return true;
}
}
return super.onKeyDown(keyCode, event);
}
}
HTML%VIDEO.java
package com.ivz.idemandtest;
import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.util.AttributeSet;
import android.util.Log;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.webkit.GeolocationPermissions;
import android.webkit.WebChromeClient;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.FrameLayout;
public class HTML5WebView extends WebView {
private Context mContext;
private MyWebChromeClient mWebChromeClient;
private View mCustomView;
private FrameLayout mCustomViewContainer;
private WebChromeClient.CustomViewCallback mCustomViewCallback;
private FrameLayout mContentView;
private FrameLayout mBrowserFrameLayout;
private FrameLayout mLayout;
static final String LOGTAG = "HTML5WebView";
private void init(Context context) {
mContext = context;
Activity a = (Activity) mContext;
mLayout = new FrameLayout(context);
mBrowserFrameLayout = (FrameLayout) LayoutInflater.from(a).inflate(R.layout.custom_screen, null);
mContentView = (FrameLayout) mBrowserFrameLayout.findViewById(R.id.main_content);
mCustomViewContainer = (FrameLayout) mBrowserFrameLayout.findViewById(R.id.fullscreen_custom_content);
mLayout.addView(mBrowserFrameLayout, COVER_SCREEN_PARAMS);
// Configure the webview
WebSettings s = getSettings();
s.setBuiltInZoomControls(true);
s.setLayoutAlgorithm(WebSettings.LayoutAlgorithm.NARROW_COLUMNS);
s.setUseWideViewPort(true);
s.setLoadWithOverviewMode(true);
// s.setSavePassword(true);
s.setSaveFormData(true);
s.setJavaScriptEnabled(true);
mWebChromeClient = new MyWebChromeClient();
setWebChromeClient(mWebChromeClient);
setWebViewClient(new WebViewClient());
setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY);
// enable navigator.geolocation
// s.setGeolocationEnabled(true);
// s.setGeolocationDatabasePath("/data/data/org.itri.html5webview/databases/");
// enable Web Storage: localStorage, sessionStorage
s.setDomStorageEnabled(true);
mContentView.addView(this);
}
public HTML5WebView(Context context) {
super(context);
init(context);
}
public HTML5WebView(Context context, AttributeSet attrs) {
super(context, attrs);
init(context);
}
public HTML5WebView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
init(context);
}
public FrameLayout getLayout() {
return mLayout;
}
public boolean inCustomView() {
return (mCustomView != null);
}
public void hideCustomView() {
mWebChromeClient.onHideCustomView();
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK) {
if ((mCustomView == null) && canGoBack()){
goBack();
return true;
}
}
return super.onKeyDown(keyCode, event);
}
private class MyWebChromeClient extends WebChromeClient {
private Bitmap mDefaultVideoPoster;
private View mVideoProgressView;
@Override
public void onShowCustomView(View view, WebChromeClient.CustomViewCallback callback)
{
//Log.i(LOGTAG, "here in on ShowCustomView");
HTML5WebView.this.setVisibility(View.GONE);
// if a view already exists then immediately terminate the new one
if (mCustomView != null) {
callback.onCustomViewHidden();
return;
}
mCustomViewContainer.addView(view);
mCustomView = view;
mCustomViewCallback = callback;
mCustomViewContainer.setVisibility(View.VISIBLE);
}
@Override
public void onHideCustomView() {
System.out.println("customview hideeeeeeeeeeeeeeeeeeeeeeeeeee");
if (mCustomView == null)
return;
// Hide the custom view.
mCustomView.setVisibility(View.GONE);
// Remove the custom view from its container.
mCustomViewContainer.removeView(mCustomView);
mCustomView = null;
mCustomViewContainer.setVisibility(View.GONE);
mCustomViewCallback.onCustomViewHidden();
HTML5WebView.this.setVisibility(View.VISIBLE);
HTML5WebView.this.goBack();
//Log.i(LOGTAG, "set it to webVew");
}
@Override
public View getVideoLoadingProgressView() {
//Log.i(LOGTAG, "here in on getVideoLoadingPregressView");
if (mVideoProgressView == null) {
LayoutInflater inflater = LayoutInflater.from(mContext);
mVideoProgressView = inflater.inflate(R.layout.video_loading_progress, null);
}
return mVideoProgressView;
}
@Override
public void onReceivedTitle(WebView view, String title) {
((Activity) mContext).setTitle(title);
}
@Override
public void onProgressChanged(WebView view, int newProgress) {
((Activity) mContext).getWindow().setFeatureInt(Window.FEATURE_PROGRESS, newProgress*100);
}
@Override
public void onGeolocationPermissionsShowPrompt(String origin, GeolocationPermissions.Callback callback) {
callback.invoke(origin, true, false);
}
}
static final FrameLayout.LayoutParams COVER_SCREEN_PARAMS =
new FrameLayout.LayoutParams( ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
}
custom_screen.xml
<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2009 The Android Open Source Project
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android">
<FrameLayout android:id="@+id/fullscreen_custom_content"
android:visibility="gone"
android:background="@color/black"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
<LinearLayout android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout android:id="@+id/error_console"
android:layout_width="match_parent"
android:layout_height="wrap_content"
/>
<FrameLayout android:id="@+id/main_content"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
</LinearLayout>
</FrameLayout>
video_loading_progress.xml
<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2009 The Android Open Source Project
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/progress_indicator"
android:orientation="vertical"
android:layout_centerInParent="true"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ProgressBar android:id="@android:id/progress"
style="?android:attr/progressBarStyleLarge"
android:layout_gravity="center"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<TextView android:paddingTop="5dip"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="@string/loading_video" android:textSize="14sp"
android:textColor="?android:attr/textColorPrimary" />
</LinearLayout>
colors.xml
<?xml version="1.0" encoding="utf-8"?>
<!--
/* //device/apps/common/assets/res/any/http_authentication_colors.xml
**
** Copyright 2006, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
** http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
-->
<!-- FIXME: Change the name of this file! It is now being used generically
for the browser -->
<resources>
<color name="username_text">#ffffffff</color>
<color name="username_edit">#ff000000</color>
<color name="password_text">#ffffffff</color>
<color name="password_edit">#ff000000</color>
<color name="ssl_text_label">#ffffffff</color>
<color name="ssl_text_value">#ffffffff</color>
<color name="white">#ffffffff</color>
<color name="black">#ff000000</color>
<color name="geolocation_permissions_prompt_background">#ffdddddd</color>
</resources>
Manifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.test"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk android:minSdkVersion="7" />
<application android:icon="@drawable/icon" android:label="@string/app_name">
<activity android:name=".Test"
android:label="@string/app_name" android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
android:configChanges="orientation|keyboardHidden|keyboard">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
<uses-permission android:name="android.permission.INTERNET"></uses-permission>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_GPS" />
<uses-permission android:name="android.permission.ACCESS_ASSISTED_GPS" />
<uses-permission android:name="android.permission.ACCESS_LOCATION" />
</manifest>
Expecting rest of things you can understand.