AndroidManifest.xml文件中的“allowClearUserData”=“false”

Question

android清单文件中的allowClearUserData属性是做什么的？

Answer 1

Per the source code for that field:

Option to let applications specify that user data can/cannot be cleared. This flag is turned on by default. This attribute is usable only by applications included in the system image. Third-party apps cannot use it.

<attr name="allowClearUserData" format="boolean" />

Answer 2

The allowClearUserData is an option that let's the application specify if the user's data can/cannot be deleted. By default, this flag is set to true. However it can be changed to false. The attribute can be set for your app. However any other app cannot use this attribute to clear your app's user data.he attribute allows boolean value, that is either "true" or "false". If set to true, the application manager has the right to clear the data.

Example:

<application>
<application android:allowClearUserData=["true" | "false"] 
</application>

This must be placed within the android manifest file.