Android : Navigation Menu Item's Group Sequences

Question

I created a navigation menu XML file for my project. nav_menu.xml

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">

<group
    android:id="@+id/group_note"
    android:checkableBehavior="single">
    <item
        android:id="@+id/note"
        android:icon="@drawable/all_notes"
        android:iconTint="@color/black1"
        android:title="Notes"/>
</group>

<group
    android:id="@+id/group_days"
    android:checkableBehavior="single">
            <!-- all days will come here -->
</group>

<group
    android:id="@+id/group_setting"
    android:checkableBehavior="none">
    <item
        android:id="@+id/setting"
        android:icon="@drawable/setting"
        android:iconTint="@color/black1"
        android:title="Settings" >
    </item>
</group>

group_days item will dynamically. But the problem is, I except group_days after group_note. But it comes after group_setting! I don't know why.

Answer 1

我认为问题是您在items中添加的所有XML都有默认顺序，这意味着下一个添加的items将会在您的方案中添加已添加的项目。尝试为您的商品订购，例如Notes它显然为0：android:orderInCategory="0"和Settings尝试：android:orderInCategory="2"然后为每个新添加的商品集类别到1。例如：

menu.add(R.id.monday, Menu.NONE, 1, "Monday");
menu.add(R.id.tuesday, Menu.NONE, 1, "Tuesday");
//and so on