带参数或操作的目标必须具有"name"或"id"属性

Question

我使用Google导航创建了全局操作.编译代码时出现以下错误

<navigation xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
app:startDestination="@id/homeEnumerationFragment">

<fragment
    android:id="@+id/homeEnumerationFragment"
    android:name="org.southasia.ghru.ui.homeenumeration.HomeEnumerationFragment"
    android:label="HomeEnumerationFragment"
    tools:layout="@layout/home_enumeration_fragment"></fragment>


<fragment
    android:id="@+id/stationFragments"
    android:name="org.southasia.ghru.ui.station.StationFragment"
    android:label="StationFragment"
    tools:layout="@layout/station_fragment"/>

<fragment
    android:id="@+id/devicesFragment"
    android:name="org.southasia.ghru.ui.devices.DevicesFragment"
    android:label="DevicesFragment"
    tools:layout="@layout/devices_fragment"/>
<action android:id="@+id/action_global_stationFragments3" app:destination="@+id/stationFragments"/>

错误错误:带参数或操作的目标必须具有"name"或"id"属性.

Answer 1

要使用全局操作,您需要为导航图指定一个ID(目前它不是自动生成的).只需在导航元素中添加'id'属性,如下所示:

<navigation xmlns:android="http://schemas.android.com/apk/res/android"
   xmlns:app="http://schemas.android.com/apk/res-auto"
   xmlns:tools="http://schemas.android.com/tools"
   app:startDestination="@id/homeEnumerationFragment"
   android:id="@+id/main">