Android WebView无法播放视频或直播，关闭界面后任在播放的问题；

1、设置webview属性：

       webView.setWebChromeClient(new MyWebChromeClient());
        webSettings = webView.getSettings();
        webSettings.setJavaScriptEnabled(true);
        webSettings.setPluginState(WebSettings.PluginState.ON);
        webSettings.setUseWideViewPort(true); 
        webSettings.setAllowFileAccess(true); 
        webSettings.setSupportZoom(true); 
        webSettings.setLoadWithOverviewMode(true);
        webSettings.setCacheMode(WebSettings.LOAD_NO_CACHE);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            webSettings.setMixedContentMode(WebSettings.MIXED_CONTENT_ALWAYS_ALLOW);
        }
        webSettings.setUseWideViewPort(true);
        webView.addJavascriptInterface(new JavaScriptObject(this), "android");

2、设置AndroidManifest.xml:

//开启硬件加速

<activity android:name=".webview.WebViewAdActivity"  android:hardwareAccelerated="true"/>

3、关闭界面任在播放的问题：

@Override
public void onPause() {
    super.onPause();
    webView.onPause();
    webView.pauseTimers();
}

@Override
public void onResume() {
    super.onResume();
    webView.resumeTimers();
    webView.onResume();
}


@Override
protected void onDestroy() {
    webView.destroy();
    webView = null;
    super.onDestroy();
}