在Android中使用Cordova 5.0构建自定义WebView

Question

我想用Cordova构建一个自定义WebView。要做到这一点，我想重写setWebChromeClient和setWebViewClient方法。但为此，我需要有一个SystemWebViewClient，它需要一个SystemWebViewEngine，我似乎不能在这一点上得到。这是我的主要活动

public class MyActivity extends CordovaActivity implements CordovaInterface {
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        int threadSize = getResources().getInteger(R.integer.WIPThreadPoolSize);
        // Initiate Thread pool
        threadPool = new ThreadPoolExecutor(threadSize, threadSize, 10, TimeUnit.SECONDS, this.priorityQueue);
        initApplicationInformationManager();
        // initialize global variables
        GlobalApplicationVariables.initValues(this);
        isActivityReady = false;
        isActivityReady = false;
        setContentView(R.layout.main_layout);
        super.init();
    }

    protected CordovaWebView makeWebView() {
        SystemWebView webView = (SystemWebView) findViewById(R.id.customWebView);
       SystemWebViewEngine engine = new SystemWebViewEngine(webView);

        return new CordovaWebViewImpl(engine);
    }
   protected void createViews() {
        appView.getView().requestFocusFromTouch();
    }
}

和我的自定义webview:

@SuppressLint("SetJavaScriptEnabled")
public class CustomWebView extends SystemWebView {
    private DebugServiceClient dbgClient;
    public CustomWebView(Context context) {
        super(context);
        this.configureView(context);
    }
   public CustomWebView(Context context, AttributeSet attributeSet) {
        super(context, attributeSet);
        this.configureView(context);
    }
    /**
     * Configure the web view.
     *
     * @param context
     *            Context web view is running in.
     */
    private void configureView(Context context) {
        //Make the WebView visible and hide its scroll bars
        setVisibility(View.VISIBLE);
        setVerticalScrollBarEnabled(false);
        setHorizontalScrollBarEnabled(false);
        setOverScrollMode(OVER_SCROLL_NEVER);
        WebSettings webSettings = getSettings();
        webSettings.setJavaScriptEnabled(true);
        webSettings.setSupportZoom(false);
        webSettings.setAppCacheEnabled(false);
        webSettings.setDomStorageEnabled(true);

        final MyActivity myActivity = (MyActivity) context;

        setWebChromeClient(new SystemWebChromeClient(new SystemWebViewEngine(this)) {
            public void onShowCustomView(View view, CustomViewCallback callback) {
           /*Custom code*/
            }
            public void onHideCustomView() {
            /*Custom code*/
            }
        });
        setWebViewClient(new SystemWebViewClient(new SystemWebViewEngine(this)) {
            public boolean shouldOverrideUrlLoading(WebView webview, String url) {
            /*Custom code*/    
            }
            public void onReceivedError(WebView view, int errorCod, String description, String failingUrl) {
                Log.e("Webview Error", errorCod + " - " + description + failingUrl);
            }
        }); 
    }        
}

不能真正得到一个引擎，以便方法可以被覆盖，所以我只是创建了一个在飞行中，但这会产生一些错误。此外，我似乎无法访问Cordova插件管理器，因此我无法添加插件到webview。哪一种方法最好?

Answer 1

我在MainActivity中用这个被覆盖的方法覆盖了SystemWebViewClient

@Override
protected CordovaWebViewEngine makeWebViewEngine() {
    CordovaWebViewEngine ret = CordovaWebViewImpl.createEngine(this, preferences);
    ((SystemWebView)ret.getView()).setWebViewClient(new SystemWebViewClient((SystemWebViewEngine)ret){
        @Override
        public void onReceivedSslError(WebView view, final SslErrorHandler handler, SslError error) {
            LOG.d(TAG, "ON RECEIVED SSL ERROR");
            super.onReceivedSslError(view, handler, error);
        }
    });
    return ret;
}