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最新推荐文章于 2025-08-08 23:51:41 发布

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本文介绍了Android中IntentFilter的作用及配置方法，通过IntentFilter可以限定哪些Intent能够访问特定Activity。此外，还详细说明了如何注册Google Maps API Key以在应用中显示地图数据，包括使用不同证书进行注册的过程。

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<intent-filter>
                <action android:name="qq.aa.TT" />
                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>

intent filter 限制哪些intent可以访问此activity(能接收什么类型的intent).
action(0个或多个),匹配其中一个即可.顺序component,如果没有则action,data,category,删除不匹配的,选择匹配中优先级最高的.

google map api需要注册key
To display Maps data in a MapView, you need to register for a Maps API Key
Each Maps API Key is uniquely associated with a specific certificate, based on an MD5 fingerprint of the certificate
Each MapView must reference a Maps API Key, and the Key referenced must be registered to the certificate used to sign the application
All MapView elements in an application can reference the same Maps API Key
You can register multiple certificates under your developer identity
You can get a temporary Maps API Key based on your debug certificate, but before you publish your application, you must register for a new Key based on your release certificate and update references in your MapViews accordingly