Android常用类库包介绍

   


<p class="MsoNormal"><span lang="EN-US">android.app</span><span>：提供高层的程序模型、提供基本的运行环境。</span>

<p class="MsoNormal"><span lang="EN-US">android.database</span><span>：通过内容提供者浏览和操作数据库。</span>

<p class="MsoNormal"><span lang="EN-US">android.location</span><span>：定位和相关服务的类。</span>

<p class="MsoNormal"><span lang="EN-US">android.net</span><span>：提供帮助网络访问的类，超过通常的</span><span lang="EN-US">java.net.*</span><span>接口。</span>

<p class="MsoNormal"><span lang="EN-US">android.opengl</span><span>：提供</span><span lang="EN-US">OpenGL </span><span>的工具，</span><span lang="EN-US">3D </span><span>加速。</span>

<p class="MsoNormal"><span lang="EN-US">android.telephony</span><span>：提供与拨打电话相关的</span><span lang="EN-US">API</span><span>交互。</span>

<p class="MsoNormal"><span lang="EN-US">android.util</span><span>：工具性的方法，例如时间日期的操作。</span>

<p class="MsoNormal"><span lang="EN-US">android.widget</span><span>：包含各种</span><span lang="EN-US">UI </span><span>元素（大部分是可见的）在应用程序的屏幕中使用。</span>

<p class="MsoNormal"><span>更全面类库包请参考：</span>

<p class="MsoNormal"><span>或者在线页面：</span>