官方Windows Azure SDK引起的Android捕获错误

Question

我想抓住这个错误，以便我自己处理它而不是向用户显示它。我该怎么办？

我正在使用官方SDK for Android for Windows Azure。

此错误仅在2-3％的时间内出现。所有其他时间它连接正常。

此外，如果我尝试联系azure的活动不存在，则上下文不再存在，并且它会尝试在不存在的上下文中显示该消息，这将使应用程序崩溃。

此代码基本上是来自windows azure的todolist示例。

谢谢，

Anthony G。

        try {
            // Create the Mobile Service Client instance, using the provided
            // Mobile Service URL and key
            mClient = new MobileServiceClient(
                    "XXXXXXX",
                    "YYYYYYYYY", this)
                    .withFilter(new ProgressFilter());

            createTable();

        } catch (MalformedURLException e) {
            createAndShowDialog(
                    new Exception(
                            "There was an error creating the Mobile Service. Verify the URL"),
                    "Error");
        } catch (Exception e) {
            Log.d(TAG, "Exepction caught" + e.toString());
        }

这是表创建部分。

try {

        Log.d(TAG, "Create table called and started. ");

        // Get the Mobile Service Table instance to use
        // Don't use the default, because the table on Azure has a different name than the class, instead use this call. 
        mToDoTable = mClient.getTable("MY_TABLE",
                MY_TABLE_SPECIAL_CLASS.class);

        // Create an adapter to bind the items with the view
        mAdapter = new DownloadedMapsListAdapter(this, R.layout.row_list_show_maps_to_download);
        ListView listViewToDo = (ListView) findViewById(R.id.listview_data_fromAzure);

        //listViewToDo.setOnItemClickListener(mMessageClickedHandler); 
        listViewToDo.setAdapter(mAdapter);          

        // Load the items from the Mobile Service
        refreshItemsFromTable();

    } catch (Exception e) {
        Log.d(TAG, "Exepction caught" + e.toString());
    }

Answer 1

好的，我是个偶像。在refreshItemsFromTable（）中，正在调用实际的'execute'语句（我没有在我的问题中发布它）。执行是它实际联系Azure时。该函数检查异常是否为null而不是使用try-catch。所以显示的是CreateAndShowDialog（异常，字符串）。

也许这会帮助别人。

/**
 * Refresh the list with the items in the Mobile Service Table
 */
private void refreshItemsFromTable() {

    // Get the items that weren't marked as completed and add them in the
    // adapter

    Log.d(TAG, "refreshItemsFromTable");
    mToDoTable.execute(new TableQueryCallback<MapObjects_FromAzure>() {

        public void onCompleted(List<MapObjects_FromAzure> result, int count,
                Exception exception, ServiceFilterResponse response) {
            if (exception == null) {

                Log.d(TAG,
                        "refreshItemsFromTable on complete, with no exception thrown so far. ");

                mAdapter.clear();

                for (MapObjects_FromAzure item : result) {
                    mAdapter.add(item);

                }

            } else {
                createAndShowDialog(exception,
                        "Error" + exception.toString());
            }
        }
    });