我想实现WebChromeClient的一个子类,以便在YouTube上有一个工作的全屏按钮在WebView中嵌入视频链接(例如:https://www.youtube.com/embed/dQw4w9WgXcQ)。WebView中的视频全屏按钮不工作
我基本上简化this repo,这里有一些片段:
VideoWebChromeClient:
public class VideoWebChromeClient extends WebChromeClient {
private boolean isVideoFullscreen = false;
private View activityNonVideoView;
private ViewGroup activityVideoView;
private View videoViewContainer;
private CustomViewCallback videoCallback;
private Window videoWindow;
public VideoWebChromeClient(View activityNonVideoView, ViewGroup activityVideoView, Window window) {
this.activityNonVideoView = activityNonVideoView;
this.activityVideoView = activityVideoView;
this.videoWindow = window;
}
@Override
public void onShowCustomView(View view, CustomViewCallback callback) {
Log.w("ENTER FULLSCREEN");
videoCallback = callback;
videoViewContainer = view;
videoWindow.addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN | WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
activityNonVideoView.setVisibility(View.GONE);
activityVideoView.addView(videoViewContainer, new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
activityVideoView.setVisibility(View.VISIBLE);
isVideoFullscreen = true;
}
@Override
public void onHideCustomView() {
if (!isVideoFullscreen) {
return;
}
Log.w("EXIT FULLSCREEN");
activityVideoView.setVisibility(View.GONE);
activityVideoView.removeView(videoViewContainer);
activityNonVideoView.setVisibility(View.VISIBLE);
videoWindow.clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN | WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
videoViewContainer = null;
videoCallback.onCustomViewHidden();
isVideoFullscreen = false;
}
public boolean onBackPressed() {
onHideCustomView();
return isVideoFullscreen;
}
}
WebViewActivity
public class WebViewActivity extends BaseActivity {
public static final String WEB_VIEW_URL_EXTRA = "URL";
private boolean loadedFirstURL = true;
private VideoWebChromeClient mWebChromeClient;
@Bind(webview)
WebView mWebView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(provideLayoutId());
String url = (String) getIntent().getSerializableExtra(WEB_VIEW_URL_EXTRA);
// Check if URL is YouTube/Vimeo
if (RegexHelper.isVideoURL(url)){
// Allow Fullscreen
final View defaultLayout = findViewById(R.id.defaultLayout);
final View fullscreenLayout = findViewById(R.id.fullscreenLayout);
mWebChromeClient = new VideoWebChromeClient(defaultLayout, (ViewGroup) fullscreenLayout, getWindow());
mWebView.setWebChromeClient(mWebChromeClient);
// Block external links
mWebView.setWebViewClient(new WebViewClient() {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
if (loadedFirstURL) {
loadedFirstURL = false;
return false;
}
return true;
}
});
}
mWebView.getSettings().setJavaScriptEnabled(true);
mWebView.loadUrl(url);
}
@Override
public void onBackPressed() {
if (!mWebChromeClient.onBackPressed())
{
if (mWebView.canGoBack()) {
mWebView.goBack();
}
else {
super.onBackPressed();
}
}
}
}
它的工作原理上正确奇巧 b不在牛轧糖(我只有这两个设备进行测试):当我点击全屏按钮时,它有时会进入全屏,但大部分时间它“闪烁”,并保持不全屏。
然后,当它实际上是在全屏模式下,该按钮退出全屏不起作用(onHideCustomView
完全不叫)
你可以看到,我把日志,发现当“闪光”发生,onHideCustomView
实际上是onShowCustomView
("ENTER FULLSCREEN"
然后立即"EXIT FULLSCREEN"
)后立即调用,我不明白为什么。
非常感谢,如果有人可以点我朝着解决
只是基于我的体验和研究的一个观点:忘记webview来处理youtube视频:铺设适当的Youtube API,你将释放你每周惊人的更新。 – statosdotcom
@statosdotcom是的,我想我可以在YouTube应用程序中打开它,但我不能这么做,因为目标是显示一个视频并避免提示其他人。 – CyrilFind
也许API可以为你提供一些配置,允许一些微调。我想你应该看看它。好运。 – statosdotcom