Question

我正在使用Android MDM，并在/ src / main / res / xml /文件夹下有app_restrictions.xml文件。我使用的MDM没有向我显示限制的值，甚至没有显示默认值。已按照此链接中提及的所有步骤设置应用限制：https://developer.android.com/training/enterprise/app-restrictions.html 但我得到了Bundle [EMPTY_PARCEL]。下面是代码

app_restrictions.xml

<?xml version="1.0" encoding="utf-8"?>
<restrictions xmlns:android="http://schemas.android.com/apk/res/android">
<restriction
android:key="MDMEmailKey"
android:title="Email"
android:restrictionType="string"
android:description="@string/email_address_mdm_description"
android:defaultValue="testtesttest@gmail.com" />
<restriction/>
</restrictions>

此外，lint向我显示错误，但我能够通过lint选项在gradle中抑制它，但只是想知道它是不是我面临的问题的原因。请让我知道为什么我会收到这些错误。

Executing task ':project_name:lintVitalRelease' (up-to-date check took 0.0 secs) due to:
  Task has not declared any outputs.
.../src/main/res/xml/app_restrictions.xml:8: Error: Missing required attribute android:key [ValidRestrictions]
    <restriction/>
    ~~~~~~~~~~~~~~
.../src/main/res/xml/app_restrictions.xml:8: Error: Missing required attribute android:restrictionType [ValidRestrictions]
    <restriction/>
    ~~~~~~~~~~~~~~
.../src/main/res/xml/app_restrictions.xml:8: Error: Missing required attribute android:title [ValidRestrictions]
    <restriction/>
    ~~~~~~~~~~~~~~

   Explanation for issues of type "ValidRestrictions":
   Ensures that an applications restrictions XML file is properly formed

   https://developer.android.com/reference/android/content/RestrictionsManager.html

3 errors, 0 warnings

Answer 1

RE：lint错误您在第8行restriction处有一个空的<restriction/>元素只需删除它，皮棉错误就会消失。

<?xml version="1.0" encoding="utf-8"?>
<restrictions xmlns:android="http://schemas.android.com/apk/res/android">
<restriction
android:key="MDMEmailKey"
android:title="Email"
android:restrictionType="string"
android:description="@string/email_address_mdm_description"
android:defaultValue="testtesttest@gmail.com" />
<restriction/> <!-- Error here -->
</restrictions>

问题：在app_restrictions.xml中实现应用程序限制和Lint错误

1 个答案: