Android如何让WebView中的HTML5页面实现视频全屏播放

前言

本文主要是将最近工作中遇到的一个问题进行总结分享，主要介绍的是如何让WebView中H5页面全屏播放视频。关于这个问题，做一下简单分析，希望对大家有所帮助，下面话不多说了，来看看详细的介绍吧。

效果图

运行效果

其实很简单，就是配置问题。关键地方配好了，基本没什么问题了。

• 硬件加速

• 设置WebView
  

在清单需要配置的AndroidManifest.xml

<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity
android:name=".WebViewActivity"
android:configChanges="orientation|screenSize|keyboardHidden"
android:hardwareAccelerated="true">
<intent-filter>
 <action android:name="android.intent.action.MAIN" />
 <category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>

这里需要注意的是：启动硬件加速可以 在application 启动这个硬件加速，也可以在对应的activity启动

android:hardwareAccelerated="true"

还有这个

configChanges="orientation|screenSize|keyboardHidden"

必须是

orientation|screenSize|keyboardHidden

当然记得加上网络权限

<uses-permission android:name="android.permission.INTERNET" />

下面给出全部源码

activity_webview.xml

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/mFrameLayout"
android:layout_width="match_parent"
android:layout_height="match_parent">

<WebView
android:id="@+id/mWebView"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</FrameLayout>

WebViewActivity源码

public class WebViewActivity extends AppCompatActivity {
private FrameLayout mFrameLayout;
private WebView mWebView;
private MyWebChromeClient mMyWebChromeClient;
private String URL = "http://m.tv.sohu.com/20130704/n380744170.shtml";
@Override
protected void onCreate(Bundle savedInstanceState) {
requestWindowFeature(Window.FEATURE_NO_TITLE);
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_webview);
mFrameLayout = (FrameLayout) findViewById(R.id.mFrameLayout);
mWebView = (WebView) findViewById(R.id.mWebView);
initWebView();
mWebView.loadUrl(URL);
}
private void initWebView() {
WebSettings settings = mWebView.getSettings();
settings.setJavaScriptEnabled(true);
settings.setJavaScriptCanOpenWindowsAutomatically(true);
settings.setPluginState(WebSettings.PluginState.ON);
settings.setAllowFileAccess(true);
settings.setLoadWithOverviewMode(true);
settings.setUseWideViewPort(true);
settings.setCacheMode(WebSettings.LOAD_NO_CACHE);
settings.setCacheMode(WebSettings.LOAD_DEFAULT);
mMyWebChromeClient = new MyWebChromeClient();
mWebView.setWebChromeClient(mMyWebChromeClient);
mWebView.setWebViewClient(new WebViewClient() {
 public boolean shouldOverrideUrlLoading(WebView view, String url) {
 view.loadUrl(url);
 return true;
 }

@Override
 public void onPageFinished(WebView view, String url) {
 super.onPageFinished(view, url);
 }
});
}

private class MyWebChromeClient extends WebChromeClient {
private View mCustomView;
private CustomViewCallback mCustomViewCallback;
@Override
public void onShowCustomView(View view, CustomViewCallback callback) {
 super.onShowCustomView(view, callback);
 if (mCustomView != null) {
 callback.onCustomViewHidden();
 return;
 }
 mCustomView = view;
 mFrameLayout.addView(mCustomView);
 mCustomViewCallback = callback;
 mWebView.setVisibility(View.GONE);
 setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
}

public void onHideCustomView() {
 mWebView.setVisibility(View.VISIBLE);
 if (mCustomView == null) {
 return;
 }
 mCustomView.setVisibility(View.GONE);
 mFrameLayout.removeView(mCustomView);
 mCustomViewCallback.onCustomViewHidden();
 mCustomView = null;
 setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
 super.onHideCustomView();
}
}
@Override
public void onConfigurationChanged(Configuration config) {
super.onConfigurationChanged(config);
switch (config.orientation) {
 case Configuration.ORIENTATION_LANDSCAPE:
 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN);
 getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
 break;
 case Configuration.ORIENTATION_PORTRAIT:
 getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
 getWindow().addFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN);
 break;
}
}
@Override
public void onPause() {
super.onPause();
mWebView.onPause();
}

@Override
public void onResume() {
super.onResume();
mWebView.onResume();
}

@Override
public void onBackPressed() {
if (mWebView.canGoBack()) {
 mWebView.goBack();
 return;
}
super.onBackPressed();
}

@Override
public void onDestroy() {
super.onDestroy();
mWebView.destroy();
}
}

来源：http://www.jianshu.com/p/a398018f34d6