在最新的Android SDK 2.3(API Level 9)中，提供了这样的接口。在文档路径
docs/reference/android/provider/Settings.html#ACTION_APPLICATION_DETAILS_SETTINGS下，有这样的描述：
public static final String ACTION_APPLICATION_DETAILS_SETTINGS Since: API Level 9
Activity Action: Show screen of details about a particular application.
In some cases, a matching Activity may not exist, so ensure you safeguard against this.
Input: The Intent’s data URI specifies the application package name to be shown, with the “package” scheme. That is “package:com.my.app”.
Output: Nothing.
Constant Value: “android.settings.APPLICATION_DETAILS_SETTINGS”
就是说，我们只要以android.provider.Settings.ACTION_APPLICATION_DETAILS_SETTINGS作为Action；“package:应用程序的包名”作为URI，就可以用startActivity启动应用程序信息界面了。代码如下：
Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SE