首先写布局文件activity_main.xml：
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/container" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical"> <FrameLayout android:id="@+id/video_view" android:layout_width="fill_parent" android:layout_height="fill_parent" android:visibility="gone" ></FrameLayout> <Button android:id="@+id/video_landport" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="全屏不显示该按扭，点击切换横屏" android:gravity="center" /> <WebView android:id="@+id/video_webview" android:layout_width="fill_parent" android:layout_height="fill_parent" /> </LinearLayout>
原理：实现全屏的时候把webview里的视频放到一个View（布局里的video_view控件）里面，然后把webview隐藏掉！这样就实现了全屏播放的！
现在具体来看看怎么实现的:
先放代码MainActivity.java：
public class MainActivity extends Activity { private FrameLayout videoview;// 全屏时视频加载view private Button videolandport; private WebView videowebview; private Boolean islandport = true;//true表示此时是竖屏，false表示此时横屏。 private View xCustomView; private xWebChromeClient xwebchromeclient; private String url = "http://look.appjx.cn/mobile_api.php?mod=news&id=12604"; private WebChromeClient.CustomViewCallback xCustomViewCallback; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE);//去掉应用标题 getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); setContentView(R.layout.activity_main); initwidget(); initListener(); videowebview.loadUrl(url); } private void initListener() { // TODO Auto-generated method stub videolandport.setOnClickListener(new Listener()); } private void initwidget() { // TODO Auto-generated method stub videoview = (FrameLayout) findViewById(R.id.video_view); videolandport = (Button) findViewById(R.id.video_landport); videowebview = (WebView) findViewById(R.id.video_webview); WebSettings ws = videowebview.getSettings(); /** * setAllowFileAccess 启用或禁止WebView访问文件数据 setBlockNetworkImage 是否显示网络图像 * setBuiltInZoomControls 设置是否支持缩放 setCacheMode 设置缓冲的模式 * setDefaultFontSize 设置默认的字体大小 setDefaultTextEncodingName 设置在解码时使用的默认编码 * setFixedFontFamily 设置固定使用的字体 setJavaSciptEnabled 设置是否支持Javascript * setLayoutAlgorithm 设置布局方式 setLightTouchEnabled 设置用鼠标激活被选项 * setSupportZoom 设置是否支持变焦 * */ ws.setBuiltInZoomControls(true);// 隐藏缩放按钮 ws.setLayoutAlgorithm(WebSettings.LayoutAlgorithm.NARROW_COLUMNS);// 排版适应屏幕 ws.setUseWideViewPort(true);// 可任意比例缩放 ws.setLoadWithOverviewMode(true);// setUseWideViewPort方法设置webview推荐使用的窗口。setLoadWithOverviewMode方法是设置webview加载的页面的模式。 ws.setSavePassword(true); ws.setSaveFormData(true);// 保存表单数据 ws.setJavaScriptEnabled(true); ws.setGeolocationEnabled(true);// 启用地理定位 ws.setGeolocationDatabasePath("/data/data/org.itri.html5webview/databases/");// 设置定位的数据库路径 ws.setDomStorageEnabled(true); xwebchromeclient = new xWebChromeClient(); videowebview.setWebChromeClient(xwebchromeclient); videowebview.setWebViewClient(new xWebViewClientent()); } class Listener implements OnClickListener { @Override public void onClick(View v) { // TODO Auto-generated method stub switch (v.getId()) { case R.id.video_landport: if (islandport) { setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT); videolandport.setText("全屏不显示该按扭，点击切换横屏"); }else { setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE); videolandport.setText("全屏不显示该按扭，点击切换竖屏"); } break; default: break; } } } @Override public boolean onKeyDown(int keyCode, KeyEvent event) { if (keyCode == KeyEvent.KEYCODE_BACK) { if (inCustomView()) { hideCustomView(); return true; }else { videowebview.loadUrl("about:blank");// mTestWebView.loadData("", "text/html; charset=UTF-8", null); MainActivity.this.finish(); Log.i("testwebview", "===>>>2"); } } return true; } /** * 判断是否是全屏 * @return */ public boolean inCustomView() { return (xCustomView != null); } /** * 全屏时按返加键执行退出全屏方法 */ public void hideCustomView() { xwebchromeclient.onHideCustomView(); } /** * 处理Javascript的对话框、网站图标、网站标题以及网页加载进度等 * @author */ public class xWebChromeClient extends WebChromeClient { private Bitmap xdefaltvideo; private View xprogressvideo; @Override //播放网络视频时全屏会被调用的方法 public void onShowCustomView(View view, WebChromeClient.CustomViewCallback callback) { if (islandport) { } else{// ii = "1";// setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT); } setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE); videowebview.setVisibility(View.GONE); //如果一个视图已经存在，那么立刻终止并新建一个 if (xCustomView != null) { callback.onCustomViewHidden(); return; } videoview.addView(view); xCustomView = view; xCustomViewCallback = callback; videoview.setVisibility(View.VISIBLE); } @Override //视频播放退出全屏会被调用的 public void onHideCustomView() { if (xCustomView == null)//不是全屏播放状态 return; // Hide the custom view. setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT); xCustomView.setVisibility(View.GONE); // Remove the custom view from its container. videoview.removeView(xCustomView); xCustomView = null; videoview.setVisibility(View.GONE); xCustomViewCallback.onCustomViewHidden(); videowebview.setVisibility(View.VISIBLE); //Log.i(LOGTAG, "set it to webVew"); } //视频加载添加默认图标 @Override public Bitmap getDefaultVideoPoster() { //Log.i(LOGTAG, "here in on getDefaultVideoPoster"); if (xdefaltvideo == null) { xdefaltvideo = BitmapFactory.decodeResource( getResources(), R.drawable.videoicon); } return xdefaltvideo; } //视频加载时进程loading @Override public View getVideoLoadingProgressView() { //Log.i(LOGTAG, "here in on getVideoLoadingPregressView"); if (xprogressvideo == null) { LayoutInflater inflater = LayoutInflater.from(MainActivity.this); xprogressvideo = inflater.inflate(R.layout.video_loading_progress, null); } return xprogressvideo; } //网页标题 @Override public void onReceivedTitle(WebView view, String title) { (MainActivity.this).setTitle(title); }// @Override// //当WebView进度改变时更新窗口进度// public void onProgressChanged(WebView view, int newProgress) {// (MainActivity.this).getWindow().setFeatureInt(Window.FEATURE_PROGRESS, newProgress*100);// } } /** * 处理各种通知、请求等事件 * @author */ public class xWebViewClientent extends WebViewClient { @Override public boolean shouldOverrideUrlLoading(WebView view, String url) { Log.i("webviewtest", "shouldOverrideUrlLoading: "+url); return false; } } /** * 当横竖屏切换时会调用该方法 * @author */ @Override public void onConfigurationChanged(Configuration newConfig) { Log.i("testwebview", "=====<<< onConfigurationChanged >>>====="); super.onConfigurationChanged(newConfig); if(newConfig.orientation == Configuration.ORIENTATION_LANDSCAPE){ Log.i("webview", " 现在是横屏1"); islandport = false; }else if(newConfig.orientation == Configuration.ORIENTATION_PORTRAIT){ Log.i("webview", " 现在是竖屏1"); islandport = true; } }}
最后说下AndroidManifest.xml设置;访问网络权限加上这句
<uses-permission android:name="android.permission.INTERNET"/>
当切换横竖屏时为了不重新调用onCreate等方法，要加个这句：
android:configChanges="orientation|keyboardHidden|screenSize"
总结
以上所述是小编给大家介绍的Android使用WebView实现全屏切换播放网页视频功能，希望对大家有所帮助，如果大家有任何疑问欢迎给我留言，小编会及时回复大家的！
本文标题: Android使用WebView实现全屏切换播放网页视频功能
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