這篇文章主要介紹了Android使用WebView實現全屏切換播放網頁視頻功能,本文通過實例代碼給大家介紹的非常詳細，需要的朋友可以參考下
首先寫佈局文件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="全屏不顯示該按扭，點擊切換橫屏"
android:gravity="center"
/>
<WebView
android:id="@+id/video_webview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
/>
</LinearLayout>
原理：實現全屏的時候把webview裏的視頻放到一個View（佈局裏的video_view控件）裏面，然後把webview隱藏掉！這樣就實現了全屏播放的！
現在具體來看看怎麼實現的:
先放代碼MainActivity.java：
public class MainActivity extends Activity {
private FrameLayout videoview;// 全屏時視頻加載view
private Button videolandport;
private WebView videowebview;
private Boolean islandport = true;//true表示此時是豎屏，false表示此時橫屏。
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);//去掉應用標題
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 啓用或禁止WebView訪問文件數據 setBlockNetworkImage 是否顯示網絡圖像
* setBuiltInZoomControls 設置是否支持縮放 setCacheMode 設置緩衝的模式
* setDefaultFontSize 設置默認的字體大小 setDefaultTextEncodingName 設置在解碼時使用的默認編碼
* setFixedFontFamily 設置固定使用的字體 setJavaSciptEnabled 設置是否支持Javascript
* setLayoutAlgorithm 設置佈局方式 setLightTouchEnabled 設置用鼠標激活被選項
* setSupportZoom 設置是否支持變焦
* */
ws.setBuiltInZoomControls(true);// 隱藏縮放按鈕
ws.setLayoutAlgorithm(WebSettings.LayoutAlgorithm.NARROW_COLUMNS);// 排版適應屏幕
ws.setUseWideViewPort(true);// 可任意比例縮放
ws.setLoadWithOverviewMode(true);// setUseWideViewPort方法設置webview推薦使用的窗口。setLoadWithOverviewMode方法是設置webview加載的頁面的模式。
ws.setSavePassword(true);
ws.setSaveFormData(true);// 保存表單數據
ws.setJavaScriptEnabled(true);
ws.setGeolocationEnabled(true);// 啓用地理定位
ws.setGeolocationDatabasePath("/data/data/org.itri.html5webview/databases/");// 設置定位的數據庫路徑
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("全屏不顯示該按扭，點擊切換橫屏");
}else {
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
videolandport.setText("全屏不顯示該按扭，點擊切換豎屏");
}
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;
}
/**
* 判斷是否是全屏
* @return
*/
public boolean inCustomView() {
return (xCustomView != null);
}
/**
* 全屏時按返加鍵執行退出全屏方法
*/
public void hideCustomView() {
xwebchromeclient.onHideCustomView();
}
/**
* 處理Javascript的對話框、網站圖標、網站標題以及網頁加載進度等
* @author
*/
public class xWebChromeClient extends WebChromeClient {
private Bitmap xdefaltvideo;
private View xprogressvideo;
@Override
//播放網絡視頻時全屏會被調用的方法
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);
//如果一個視圖已經存在，那麼立刻終止並新建一個
if (xCustomView != null) {
callback.onCustomViewHidden();
return;
}
videoview.addView(view);
xCustomView = view;
xCustomViewCallback = callback;
videoview.setVisibility(View.VISIBLE);
}
@Override
//視頻播放退出全屏會被調用的
public void onHideCustomView() {
if (xCustomView == null)//不是全屏播放狀態
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");
}
//視頻加載添加默認圖標
@Override
public Bitmap getDefaultVideoPoster() {
//Log.i(LOGTAG, "here in on getDefaultVideoPoster");
if (xdefaltvideo == null) {
xdefaltvideo = BitmapFactory.decodeResource(
getResources(), R.drawable.videoicon);
}
return xdefaltvideo;
}
//視頻加載時進程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;
}
//網頁標題
@Override
public void onReceivedTitle(WebView view, String title) {
(MainActivity.this).setTitle(title);
}
// @Override
// //當WebView進度改變時更新窗口進度
// public void onProgressChanged(WebView view, int newProgress) {
// (MainActivity.this).getWindow().setFeatureInt(Window.FEATURE_PROGRESS, newProgress*100);
// }
}
/**
* 處理各種通知、請求等事件
* @author
*/
public class xWebViewClientent extends WebViewClient {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
Log.i("webviewtest", "shouldOverrideUrlLoading: "+url);
return false;
}
}
/**
* 當橫豎屏切換時會調用該方法
* @author
*/
@Override
public void onConfigurationChanged(Configuration newConfig) {
Log.i("testwebview", "=====<<< onConfigurationChanged >>>=====");
super.onConfigurationChanged(newConfig);
if(newConfig.orientation == Configuration.ORIENTATION_LANDSCAPE){
Log.i("webview", " 現在是橫屏1");
islandport = false;
}else if(newConfig.orientation == Configuration.ORIENTATION_PORTRAIT){
Log.i("webview", " 現在是豎屏1");
islandport = true;
}
}
}
最後說下AndroidManifest.xml設置;
訪問網絡權限加上這句
<uses-permission android:name="android.permission.INTERNET"/>
當切換橫豎屏時爲了不重新調用onCreate等方法，要加個這句：
android:configChanges="orientation|keyboardHidden|screenSize"
總結
以上所述是小編給大家介紹的Android使用WebView實現全屏切換播放網頁視頻功能，希望對大家有所幫助，如果大家有任何疑問歡迎給我留言，小編會及時回覆大家的！