我有一个带DrawerLayout的android.support.design.widget.NavigationView在工作中运作正常,但现在我想将它移植到ConstraintLayout。不过这并不顺利,我想请教一下有何建议?
原来的工作XML:
将布局迁移到ConstraintLayout:(抽屉无法滑动,失效了)
原来的工作XML:
<android.support.v4.widget.DrawerLayout 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"
android:id="@+id/drawer"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context="com.port.android.ui.ActivityMain">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<include
android:id="@+id/toolbar"
layout="@layout/tool_bar" />
<FrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/frame"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1">
</FrameLayout>
</LinearLayout>
<android.support.design.widget.NavigationView
android:id="@+id/navigation_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
app:headerLayout="@layout/navigation_view_header"
app:menu="@menu/menu_navigation">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:orientation="horizontal"
android:padding="20dp">
<Button
android:id="@+id/btn_exit"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:onClick="exitAddress"
android:text="Exit Address" />
</LinearLayout>
</android.support.design.widget.NavigationView>
</android.support.v4.widget.DrawerLayout>
将布局迁移到ConstraintLayout:(抽屉无法滑动,失效了)
"@+id/frame"
是我插入Fragment的地方。<android.support.v4.widget.DrawerLayout 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"
android:id="@+id/drawer"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<android.support.constraint.ConstraintLayout
android:id="@+id/main_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.port.android.ui.ActivityMain">
<include
android:id="@+id/toolbar"
layout="@layout/tool_bar"
android:layout_width="0dp"
android:layout_height="56dp"
tools:layout_editor_absoluteY="100dp"
tools:layout_editor_absoluteX="8dp" />
<android.support.constraint.ConstraintLayout
android:id="@+id/frame"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginBottom="16dp"
android:layout_marginEnd="16dp"
android:layout_marginRight="16dp"
android:layout_marginTop="16dp"
android:gravity="center"
android:orientation="vertical"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.22000003"
android:layout_marginStart="16dp"
app:layout_constraintLeft_toLeftOf="parent"
android:layout_marginLeft="16dp">
</android.support.constraint.ConstraintLayout>
<android.support.design.widget.NavigationView
android:id="@+id/navigation_view"
android:layout_width="wrap_content"
android:layout_height="0dp"
android:layout_gravity="start"
app:headerLayout="@layout/navigation_view_header"
app:menu="@menu/menu_navigation"
android:fitsSystemWindows="true"
tools:layout_editor_absoluteY="8dp"
tools:layout_editor_absoluteX="8dp">
<Button
android:id="@+id/btn_exit"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:onClick="exitAddress"
android:text="Exit Address" />
</android.support.design.widget.NavigationView>
</android.support.constraint.ConstraintLayout>
</android.support.v4.widget.DrawerLayout>
NavigationView
)仍需要成为DrawerLayout
的最后一个直接子元素。也就是说,将其移动到闭合的CoordinatorLayout
标签之后。 - Mike M.