无法从公共Google日历API v3中获取事件

Question

按照本教程http://www.androidhive.info/2012/01/android-json-parsing-tutorial我已将其调整为使用此URL“https://www.googleapis.com/calendar/v3/calendars/[calendar_ID]/events?singleEvents=true&orderBy=startTime&key=[my_API_key]”解析公共Google日历，而不是示例中的URL。这个日历是公开的。

当我执行应用程序，响应是这样的：

{ 
"error": { 
    "errors": [ 
    { 
    "domain": "usageLimits", 
    "reason": "accessNotConfigured", 
    "message": "Access Not Configured. The API is not enabled for your project, or there is a per-IP or per-Referer restriction configured on your API key and the request does not match these restrictions. Please use the Google Developers Console to update your configuration.", 
    "extendedHelp": "https://console.developers.google.com" 
    } 
    ], 
    "code": 403, 
    "message": "Access Not Configured. The API is not enabled for your project, or there is a per-IP or per-Referer restriction configured on your API key and the request does not match these restrictions. Please use the Google Developers Console to update your configuration." 
} 
} 

问题出在哪里？我做错了什么？

Answer 1

最后我找到了解决方案。

在此URL中https://www.googleapis.com/calendar/v3/calendars/[calendar_ID]/events?singleEvents=true&orderBy=startTime&key=[my_API_key]我使用的是Android应用程序的API密钥。当我为浏览器的API密钥更改此密钥时，问题消失。