我想實現WebChromeClient的一個子類,以便在YouTube上有一個工作的全屏按鈕在WebView中嵌入視頻鏈接(例如:https://www.youtube.com/embed/dQw4w9WgXcQ)。WebView中的視頻全屏按鈕不工作
我基本上簡化this repo,這裏有一些片段:
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();
}
}
}
}
它的工作原理上正確奇巧 b不在牛軋糖(我只有這兩個設備進行測試):當我點擊全屏按鈕時,它有時會進入全屏,但大部分時間它「閃爍」,並保持不全屏。
然後,當它實際上是在全屏模式下,該按鈕退出全屏不起作用(onHideCustomView
完全不叫)
你可以看到,我把日誌,發現當「閃光」發生,onHideCustomView
實際上是onShowCustomView
("ENTER FULLSCREEN"
然後立即"EXIT FULLSCREEN"
)後立即調用,我不明白爲什麼。
非常感謝,如果有人可以點我朝着解決
只是基於我的體驗和研究的一個觀點:忘記webview來處理youtube視頻:鋪設適當的Youtube API,你將釋放你每週驚人的更新。 – statosdotcom
@statosdotcom是的,我想我可以在YouTube應用程序中打開它,但我不能這麼做,因爲目標是顯示一個視頻並避免提示其他人。 – CyrilFind
也許API可以爲你提供一些配置,允許一些微調。我想你應該看看它。好運。 – statosdotcom