对webchromeclient的功能进行梳理。。

platforms/android/src/org/apache/cordova/x5engine/X5WebChromeClient.java

-/*
-       Licensed to the Apache Software Foundation (ASF) under one
-       or more contributor license agreements.  See the NOTICE file
-       distributed with this work for additional information
-       regarding copyright ownership.  The ASF licenses this file
-       to you under the Apache License, Version 2.0 (the
-       "License"); you may not use this file except in compliance
-       with the License.  You may obtain a copy of the License at
-
-         http://www.apache.org/licenses/LICENSE-2.0
-
-       Unless required by applicable law or agreed to in writing,
-       software distributed under the License is distributed on an
-       "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-       KIND, either express or implied.  See the License for the
-       specific language governing permissions and limitations
-       under the License.
-*/
+/**
+ *
+ * x5webchromeclient
+ *
+ * 用于js alert confirm等对话框等本地实现。
+ *
+ * 地理位置获取
+ *
+ * 处理console.log，转为 android系统Log.d
+ *
+ * 进度条
+ *
+ * 文件选择器
+ *
+ *
+ */
 package org.apache.cordova.x5engine;
 
 import java.util.Arrays;