Question

以下是PushListenerService的一部分 - 其中android侦听正在接收的GCM消息。我试图通过webview实现一个javascript函数（fireRadius）。 webview已通过主活动创建。目的是让JS函数更新webview而不重新加载它。

我怀疑两件事中的任何一件都不对劲：

视图设置不正确
onPageFinished是不必要的，因为webview已在主活动中运行。如果置于主活动中，则此方法将触发JS函数。

这不会导致任何错误。 JS函数根本不运行。

    import android.app.ActivityManager;
    import android.app.Notification;
    import android.app.NotificationManager;
    import android.app.PendingIntent;
    import android.content.Context;
    import android.content.Intent;
    import android.os.Bundle;
    import android.support.v4.app.NotificationCompat;
    import android.support.v4.content.LocalBroadcastManager;
    import android.util.Log;
    import android.view.LayoutInflater;
    import android.view.View;
    import android.webkit.WebView;
    import android.webkit.WebViewClient;

    import com.amazon.mysampleapp.R;
    import com.amazonaws.mobile.MainActivity;
    import com.google.android.gms.gcm.GcmListenerService;

    import java.util.List;
    import java.util.regex.Matcher;
    import java.util.regex.Pattern;

    import static com.amazonaws.mobile.util.ThreadUtils.runOnUiThread;


    /**
     * A service that listens to GCM notifications.
     */
    public class PushListenerService extends GcmListenerService {

        private static final String LOG_TAG = PushListenerService.class.getSimpleName();

        // Intent action used in local broadcast
        public static final String ACTION_SNS_NOTIFICATION = "sns-notification";
        // Intent keys
        public static final String INTENT_SNS_NOTIFICATION_FROM = "from";
        public static final String INTENT_SNS_NOTIFICATION_DATA = "data";

        /**
         * Called when message is received.
         *
         * @param from SenderID of the sender.
         * @param data Data bundle containing message data as key/value pairs. For Set of keys use
         * data.keySet().
         */
        @Override
        public void onMessageReceived(final String from, final Bundle data) {
            String message = getMessage(data);
            //Log.d(LOG_TAG, "From: " + from);
            Log.d(LOG_TAG, "Message: " + message);

            //TODO create a popup where the user is

            runOnUiThread(new Runnable() {
                public void run() {
                    LayoutInflater vi = (LayoutInflater) getApplicationContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
                    View view = vi.inflate(R.layout.activity_main, null);

                    final WebView webview = (WebView) view.findViewById(R.id.webview);

                    webview.getSettings().setJavaScriptEnabled(true);
webview.getSettings().setJavaScriptEnabled(true);
                webview.getSettings().setDomStorageEnabled(true);
                webview.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);
                webview.getSettings().setGeolocationEnabled(true);
                webview.setEnabled(true);
                webview.setClickable(true);

                    Log.d("DID IT WORK?", "YEP!!");
                    webview.loadUrl("file:///android_asset/MyMap.html");

                    webview.setWebViewClient(new WebViewClient() {
                        public void onPageFinished(WebView view, String url) {
                            webview.loadUrl("javascript:fireRadius(" +
                                    43.0000000 + "," +
                                    -79.4000000 + "," +
                                    300 + ",\"" +
                                    "A CIRCLE!" + "\")");
                        }
                    });

                }
            });

            // Display a notification in the notification center if the app is in the background.
            // Otherwise, send a local broadcast to the app and let the app handle it.
            if (isForeground(this)) {
                // broadcast notification
                broadcast(from, data);
            } else {
                displayNotification(text);
            }

        }
    }

从服务运行webview

0 个答案: