我在webview中运行android应用已经有一年了。 但是最近有些客户反映我的应用中的html5视频无法播放。 我有五部手机用于测试，所有我的手机都没有问题。大多数客户使用应用程序没有任何问题。
我将preload属性值从auto更改为meta，因为我想要减少网络负载。
下面的图片是客户的截图。 有一个时间显示为27:10，但没有显示加载图标（我认为加载已经完成）。 然而，客户无法按下播放按钮，当播放按钮被按下时，视频元素周围会出现一个橙色线条。
客户的手机型号是galaxy note 8和galaxy J7，安卓版本为8。但在我的测试中没有发现问题。并且还有使用安卓8的客户没有任何问题。
我该怎么解决呢？谢谢。
html
<video preload="meta" width="95%" autoplay="autoplay" controls="" playsinline="">
<source type="video/mp4" src="url.../file.mp4">
HTML5 is not supported.
</video>
Android - 主活动
public class MainActivity extends AppCompatActivity {
private WebView webView;
private BackPressCloseHandler backPressCloseHandler = new BackPressCloseHandler(this);
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
webView = findViewById(R.id.webView);
/* webView settings */
webView.getSettings().setSupportZoom(true);
webView.getSettings().setBuiltInZoomControls(true);
webView.getSettings().setJavaScriptEnabled(true);
webView.getSettings().setCacheMode(WebSettings.LOAD_NO_CACHE);
webView.setWebChromeClient(new FullscreenableChromeClient(MainActivity.this));
webView.setWebViewClient(new WebViewClientClass());
webView.loadUrl("MY URL IS HERE");
} //onCreate
private class WebViewClientClass extends WebViewClient {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
}
自定义类以启用视频全屏
import android.app.Activity;
import android.content.Context;
import android.os.Build;
import android.support.v4.content.ContextCompat;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.view.WindowManager;
import android.webkit.WebChromeClient;
import android.widget.FrameLayout;
public class FullscreenableChromeClient extends WebChromeClient {
private Activity mActivity = null;
private View mCustomView;
private WebChromeClient.CustomViewCallback mCustomViewCallback;
private int mOriginalOrientation;
private FrameLayout mFullscreenContainer;
private static final FrameLayout.LayoutParams COVER_SCREEN_PARAMS = new FrameLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
public FullscreenableChromeClient(Activity activity) {
this.mActivity = activity;
}
@Override
public void onShowCustomView(View view, CustomViewCallback callback) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
if (mCustomView != null) {
callback.onCustomViewHidden();
return;
}
mOriginalOrientation = mActivity.getRequestedOrientation();
FrameLayout decor = (FrameLayout) mActivity.getWindow().getDecorView();
mFullscreenContainer = new FullscreenHolder(mActivity);
mFullscreenContainer.addView(view, COVER_SCREEN_PARAMS);
decor.addView(mFullscreenContainer, COVER_SCREEN_PARAMS);
mCustomView = view;
setFullscreen(true);
mCustomViewCallback = callback;
// mActivity.setRequestedOrientation(requestedOrientation);
}
super.onShowCustomView(view, callback);
}
@SuppressWarnings("deprecation")
@Override
public void onShowCustomView(View view, int requestedOrientation, WebChromeClient.CustomViewCallback callback) {
this.onShowCustomView(view, callback);
}
@Override
public void onHideCustomView() {
if (mCustomView == null) {
return;
}
setFullscreen(false);
FrameLayout decor = (FrameLayout) mActivity.getWindow().getDecorView();
decor.removeView(mFullscreenContainer);
mFullscreenContainer = null;
mCustomView = null;
mCustomViewCallback.onCustomViewHidden();
mActivity.setRequestedOrientation(mOriginalOrientation);
}
private void setFullscreen(boolean enabled) {
Window win = mActivity.getWindow();
WindowManager.LayoutParams winParams = win.getAttributes();
final int bits = WindowManager.LayoutParams.FLAG_FULLSCREEN;
if (enabled) {
winParams.flags |= bits;
} else {
winParams.flags &= ~bits;
if (mCustomView != null) {
mCustomView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_VISIBLE);
}
}
win.setAttributes(winParams);
}
private static class FullscreenHolder extends FrameLayout {
public FullscreenHolder(Context ctx) {
super(ctx);
setBackgroundColor(ContextCompat.getColor(ctx, android.R.color.black));
}
@Override
public boolean onTouchEvent(MotionEvent evt) {
return true;
}
}
}
manifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="...">
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:hardwareAccelerated="true"
android:theme="@style/AppTheme">
<activity android:name="....webview.MainActivity"
android:configChanges="keyboardHidden|orientation|screenSize">
</activity>
<activity android:name="....webview.IntroActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>