我正在开发一个完全基于网络的android应用程序。它需要使用具有丰富多媒体内容的webview显示基于HTML5的网页。当我尝试播放嵌入在网页中的视频内容时，一切正常，我也可以全屏播放视频。
但是我的主要问题从这里开始：当我在播放全屏视频的同时切换设备屏幕时，它突然从播放状态退出到当前网页。我被困在这里，这里包括所有我曾经使用过的代码，希望有人能帮助我。
使用的活动：MainActivity.java
`公共类MainActivity扩展了Activity {
private WebView webView;
private FrameLayout customViewContainer;
private WebChromeClient.CustomViewCallback customViewCallback;
private View mCustomView;
private MyWebViewClient mWebViewClient;
private MyWebChromeClient mWebChromeClient;
/**
* Called when the activity is first created.
*/
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
customViewContainer = (FrameLayout) findViewById(R.id.customViewContainer);
webView = (WebView) findViewById(R.id.webView);
mWebViewClient = new MyWebViewClient();
webView.setWebViewClient(mWebViewClient);
mWebChromeClient = new MyWebChromeClient();
webView.setWebChromeClient(mWebChromeClient);
webView.getSettings().setJavaScriptEnabled(true);
webView.getSettings().setAppCacheEnabled(true);
webView.getSettings().setBuiltInZoomControls(true);
webView.getSettings().setSaveFormData(true);
webView.loadUrl("http://yuotube.com");
}
public boolean inCustomView() {
return (mCustomView != null);
}
public void hideCustomView() {
mWebChromeClient.onHideCustomView();
}
@Override
protected void onPause() {
super.onPause(); //To change body of overridden methods use File | Settings | File Templates.
webView.onPause();
}
@Override
protected void onResume() {
super.onResume(); //To change body of overridden methods use File | Settings | File Templates.
webView.onResume();
}
@Override
protected void onStop() {
super.onStop(); //To change body of overridden methods use File | Settings | File Templates.
if (inCustomView()) {
hideCustomView();
}
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK) {
if (inCustomView()) {
hideCustomView();
return true;
}
if ((mCustomView == null) && webView.canGoBack()) {
webView.goBack();
return true;
}
}
return super.onKeyDown(keyCode, event);
}
// WebChromeClient Class
public class MyWebChromeClient extends WebChromeClient {
private Bitmap mDefaultVideoPoster;
private View mVideoProgressView;
@Override
public void onShowCustomView(View view, int requestedOrientation, CustomViewCallback callback) {
onShowCustomView(view, callback); //To change body of overridden methods use File | Settings | File Templates.
}
@Override
public void onShowCustomView(View view,CustomViewCallback callback) {
// if a view already exists then immediately terminate the new one
if (mCustomView != null) {
callback.onCustomViewHidden();
return;
}
mCustomView = view;
webView.setVisibility(View.GONE);
customViewContainer.setVisibility(View.VISIBLE);
customViewContainer.addView(view);
customViewCallback = callback;
}
@Override
public View getVideoLoadingProgressView() {
if (mVideoProgressView == null) {
LayoutInflater inflater = LayoutInflater.from(MainActivity.this);
mVideoProgressView = inflater.inflate(R.layout.video_progress, null);
}
return mVideoProgressView;
}
@Override
public void onHideCustomView() {
super.onHideCustomView(); //To change body of overridden methods use File | Settings | File Templates.
if (mCustomView == null)
return;
webView.setVisibility(View.VISIBLE);
customViewContainer.setVisibility(View.GONE);
// Hide the custom view.
mCustomView.setVisibility(View.GONE);
// Remove the custom view from its container.
customViewContainer.removeView(mCustomView);
customViewCallback.onCustomViewHidden();
mCustomView = null;
}
}
// WebViewClient Class
public class MyWebViewClient extends WebViewClient {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
return super.shouldOverrideUrlLoading(view, url); //To change body of overridden methods use File | Settings | File Templates.
}
ProgressDialog dialog = ProgressDialog.show(MainActivity.this, "",
"Loading multimedia! Please wait...", true);
@Override
public void onPageFinished(WebView view, String url) {
dialog.dismiss();
}
}
}
web_activity.xml
<!-- View that will be hidden when video goes fullscreen -->
<RelativeLayout
android:id="@+id/nonVideoLayout"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<com.example.iptvmodified.VideoEnabledWebView
android:id="@+id/webView"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
<!-- View where the video will be shown when video goes fullscreen -->
<RelativeLayout
android:id="@+id/videoLayout"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<!-- View that will be shown while the fullscreen video loads (maybe include a spinner and a "Loading..." message) -->
<View
android:id="@+id/videoLoading"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:visibility="invisible" />
</RelativeLayout>
`activity_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hello_world" />
我正在为此寻找解决方案，并将其用谷歌搜索搜索，没有取得任何进展。任何帮助将不胜感激。
通常在旋转设备时，您的活动会被破坏并重新创建。这可能导致WebView被“踢出”全屏播放。
您需要重写Activity.onConfigurationChanged并声明要处理清单中的方向更改。有关详细信息，请参见docs。