Question

我有一个位于android.support.design.widget.AppBarLayout顶部的按钮但按钮在布局显示和设备上留在它后面我如何把按钮放在它前面？

或者在另一个问题中如何在右上方的屏幕选项菜单旁边添加一个按钮？

这是我的布局XML＆gt;

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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:layout_width="match_parent"
    android:layout_height="match_parent"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"
    tools:context="apps.radwin.wintouch.activities.alignmentActivities.WorkordersSelectionActivity"
    tools:showIn="@layout/app_bar_workorders_selection">

    <Button
        android:id="@+id/filterButtonMainWorkorderSelection"
        android:layout_width="30dp"
        android:layout_height="30dp"
        android:layout_alignParentTop="true"
        android:layout_alignParentEnd="true"
        android:layout_marginRight="50dp"

        android:layout_marginTop="20dp"
        android:background="@drawable/ic_filter_list_black_24dp"
        android:text=""
        android:textSize="30dp" />



    <android.support.design.widget.AppBarLayout
        android:id="@+id/appbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:paddingTop="8dp"
        android:theme="@style/AppTheme.AppBarOverlay">

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="?attr/colorPrimary"
            app:layout_scrollFlags="scroll|enterAlways"
            app:popupTheme="@style/AppTheme.PopupOverlay">

        </android.support.v7.widget.Toolbar>

        <android.support.design.widget.TabLayout
            android:id="@+id/tabsLayoutWorkorderSelection"
            android:layout_width="match_parent"
            style="@style/TabLayoutStyle"
            android:layout_height="wrap_content"
            />

    </android.support.design.widget.AppBarLayout>

    <android.support.v4.view.ViewPager
        android:id="@+id/workorderSelectionMainViewPagerContainer"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_behavior="@string/appbar_scrolling_view_behavior" />

    <android.support.design.widget.FloatingActionButton
        android:id="@+id/fab"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="end|bottom"
        android:src="@drawable/add_workorders_plus"
        android:layout_marginLeft="@dimen/fab_margin"
        android:layout_marginRight="@dimen/fab_margin"
        android:layout_marginBottom="@dimen/fab_margin"
        android:layout_alignParentBottom="true"
        android:layout_alignParentEnd="true" />



    <android.support.design.widget.CoordinatorLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        android:id="@+id/main_content"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:fitsSystemWindows="true">

        <android.support.v4.widget.NestedScrollView
            android:id="@+id/bottom_sheet"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:clipToPadding="true"
            android:background="#293339"
            app:layout_behavior="android.support.design.widget.BottomSheetBehavior"
            >

            <RelativeLayout
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_centerVertical="true"
                android:layout_toStartOf="@+id/fab">


                <TextView
                    android:id="@+id/workorderFilterPopup_showAllText"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_alignParentStart="true"
                    android:layout_alignParentTop="true"
                    android:layout_marginLeft="10dp"
                    android:gravity="center"
                    android:paddingTop="5dp"
                    android:text="SHOW ALL"
                    android:textAppearance="?android:attr/textAppearanceLarge"
                    android:textColor="@color/white"
                    android:textSize="20dp" />

                <Button
                    android:layout_width="match_parent"
                    android:layout_height="30dp"
                    android:layout_alignParentStart="true"
                    android:layout_alignParentTop="true"
                    android:id="@+id/filter_menu_workorders_show_all"
                    android:background="@color/transparent"
                    android:layout_marginLeft="10dp"
                    android:paddingTop="5dp"
                    />

                <ImageView
                    android:id="@+id/workorderFilterPopup_showAllCheckMark"
                    android:layout_width="30dp"
                    android:layout_height="30dp"
                    android:layout_alignParentTop="true"
                    android:layout_marginRight="20dp"
                    android:layout_alignParentEnd="true"
                    android:src="@drawable/ic_done_black_24dp" />

                <View
                    android:layout_width="match_parent"
                    android:layout_height="2dp"
                    android:layout_marginTop="10dp"
                    android:layout_marginRight="10dp"
                    android:layout_marginLeft="10dp"
                    android:id="@+id/workorderFilterPopup_showAllTextLine"
                    android:background="@color/white"
                    android:layout_below="@+id/workorderFilterPopup_showAllText"
                    ></View>

                <ImageView
                    android:layout_width="35dp"
                    android:layout_height="35dp"
                    android:src="@drawable/ic_alarm_black_24dp"
                    android:id="@+id/workorderFilterPopup_plannedImage"
                    android:layout_marginLeft="10dp"
                    android:layout_marginTop="20dp"
                    android:layout_below="@+id/workorderFilterPopup_showAllTextLine"
                    android:layout_alignParentStart="true" />

                <Button
                    android:layout_width="match_parent"
                    android:layout_height="35dp"
                    android:id="@+id/filter_menu_workorders_planned"
                    android:background="@color/transparent"
                    android:layout_marginLeft="10dp"
                    android:layout_marginTop="20dp"
                    android:layout_below="@+id/workorderFilterPopup_showAllTextLine"
                    android:layout_alignParentStart="true"
                    />

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:textAppearance="?android:attr/textAppearanceLarge"
                    android:text="Planned"
                    android:textColor="@color/white"
                    android:layout_marginLeft="20dp"
                    android:id="@+id/workorderFilterPopup_plannedText"
                    android:layout_alignBottom="@+id/workorderFilterPopup_plannedImage"
                    android:layout_toEndOf="@+id/workorderFilterPopup_plannedImage" />

                <ImageView
                    android:id="@+id/workorderFilterPopup_PlannedCheckMark"
                    android:layout_width="30dp"
                    android:layout_height="30dp"
                    android:layout_marginRight="20dp"
                    android:layout_alignParentEnd="true"
                    android:layout_alignBottom="@+id/workorderFilterPopup_plannedText"
                    android:src="@drawable/ic_done_black_24dp" />

                <ImageView
                    android:layout_width="35dp"
                    android:layout_height="35dp"
                    android:src="@drawable/ic_cloud_off_black_24dp"
                    android:id="@+id/workorderFilterPopup_incompleteImage"
                    android:layout_marginLeft="10dp"
                    android:layout_marginTop="20dp"
                    android:layout_below="@+id/workorderFilterPopup_plannedImage"
                    android:layout_alignParentStart="true" />

                <Button
                    android:layout_width="match_parent"
                    android:layout_height="35dp"
                    android:id="@+id/filter_menu_workorders_incomplete"
                    android:background="@color/transparent"
                    android:layout_marginLeft="10dp"
                    android:layout_marginTop="20dp"
                    android:layout_below="@+id/workorderFilterPopup_plannedImage"
                    android:layout_alignParentStart="true"
                    />

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:textAppearance="?android:attr/textAppearanceLarge"
                    android:text="Uncompleted"
                    android:textColor="@color/white"
                    android:layout_marginLeft="20dp"
                    android:id="@+id/workorderFilterPopup_intompleteText"
                    android:layout_alignBottom="@+id/workorderFilterPopup_incompleteImage"
                    android:layout_toEndOf="@+id/workorderFilterPopup_incompleteImage" />

                <ImageView
                    android:id="@+id/workorderFilterPopup_IncompleteCheckMark"
                    android:layout_width="30dp"
                    android:layout_height="30dp"
                    android:layout_marginRight="20dp"
                    android:layout_alignParentEnd="true"
                    android:layout_alignBottom="@+id/workorderFilterPopup_intompleteText"
                    android:src="@drawable/ic_done_black_24dp" />

                <ImageView
                    android:layout_width="35dp"
                    android:layout_height="35dp"
                    android:src="@drawable/ic_cloud_queue_black_24dp"
                    android:id="@+id/workorderFilterPopup_CompleteImage"
                    android:layout_marginLeft="10dp"
                    android:layout_marginTop="20dp"
                    android:layout_below="@+id/workorderFilterPopup_incompleteImage"
                    android:layout_alignParentStart="true" />

                <Button
                    android:layout_width="match_parent"
                    android:layout_height="35dp"
                    android:id="@+id/filter_menu_workorders_complete"
                    android:background="@color/transparent"
                    android:layout_marginLeft="10dp"
                    android:layout_marginTop="20dp"
                    android:layout_below="@+id/workorderFilterPopup_incompleteImage"
                    android:layout_alignParentStart="true"
                    />

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:textAppearance="?android:attr/textAppearanceLarge"
                    android:text="complete 5"
                    android:textColor="@color/white"
                    android:layout_marginLeft="20dp"
                    android:id="@+id/workorderFilterPopup_completeText"
                    android:layout_alignBottom="@+id/workorderFilterPopup_CompleteImage"
                    android:layout_toEndOf="@+id/workorderFilterPopup_CompleteImage" />

                <ImageView
                    android:id="@+id/workorderFilterPopup_completeCheckMark"
                    android:layout_width="30dp"
                    android:layout_height="30dp"
                    android:layout_marginRight="20dp"
                    android:layout_alignParentEnd="true"
                    android:layout_alignBottom="@+id/workorderFilterPopup_completeText"
                    android:src="@drawable/ic_done_black_24dp" />



                <View
                    android:layout_width="match_parent"
                    android:layout_height="20dp"
                    android:layout_below="@+id/workorderFilterPopup_CompleteImage"
                    ></View>


            </RelativeLayout>



        </android.support.v4.widget.NestedScrollView>

    </android.support.design.widget.CoordinatorLayout>




</RelativeLayout>

Answer 1

将按钮包裹在Cardview内，并为Cardview增高一些。我尝试了以下代码：（使用Textview而不是Button）

<androidx.cardview.widget.CardView
    android:id="@+id/filterButtonMainWorkorderSelection"
    android:layout_width="30dp"
    android:layout_height="30dp"
    android:layout_alignParentTop="true"
    android:layout_alignParentEnd="true"
    android:layout_marginRight="50dp"
    app:cardBackgroundColor="@color/colorPrimaryDark"
    app:cardElevation="6dp"
    android:layout_marginTop="20dp">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@drawable/ic_flash_auto_black_24dp"
        android:textSize="30dp" />

</androidx.cardview.widget.CardView>

Answer 2

在APPBARLAYOUT顶部放置按钮

在您的布局中，您使用的是工具栏，它占据了布局的最高位置。如果您想要工具栏顶部的按钮，那么。

 <android.support.design.widget.AppBarLayout
        android:id="@+id/appbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:paddingTop="8dp"
        android:theme="@style/AppTheme.AppBarOverlay">

     <Button
        android:id="@+id/filterButtonMainWorkorderSelection"
        android:layout_width="30dp"
        android:layout_height="30dp"
        android:layout_alignParentTop="true"
        android:layout_alignParentEnd="true"
        android:layout_marginRight="50dp"
        android:layout_marginTop="20dp"
        android:background="@drawable/ic_filter_list_black_24dp"
        android:text=""
        android:textSize="30dp" />

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="?attr/colorPrimary"
            app:layout_scrollFlags="scroll|enterAlways"
            app:popupTheme="@style/AppTheme.PopupOverlay">

        </android.support.v7.widget.Toolbar>

        <android.support.design.widget.TabLayout
            android:id="@+id/tabsLayoutWorkorderSelection"
            android:layout_width="match_parent"
            style="@style/TabLayoutStyle"
            android:layout_height="wrap_content"
            />

    </android.support.design.widget.AppBarLayout>

如果您希望它位于工具栏下方，请将按钮放在工具栏下方。

Answer 3

您在布局中使用了工具栏，这占据了布局的最高位置。如果您希望按钮位于工具栏的顶部，则将按钮放在<android.support.v7.widget.Toolbar/>标签之间。像这样：

    <android.support.design.widget.AppBarLayout
        android:id="@+id/appbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:paddingTop="8dp"
        android:theme="@style/AppTheme.AppBarOverlay">

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="?attr/colorPrimary"
            app:layout_scrollFlags="scroll|enterAlways"
            app:popupTheme="@style/AppTheme.PopupOverlay">

         <Button
            android:id="@+id/filterButtonMainWorkorderSelection"
            android:layout_width="30dp"
            android:layout_height="30dp"
            android:layout_alignParentTop="true"
            android:layout_alignParentEnd="true"
            android:layout_marginRight="50dp"
            android:layout_marginTop="20dp"
            android:background="@drawable/ic_filter_list_black_24dp"
            android:text=""
            android:textSize="30dp" />

        </android.support.v7.widget.Toolbar>

        <android.support.design.widget.TabLayout
            android:id="@+id/tabsLayoutWorkorderSelection"
            android:layout_width="match_parent"
            style="@style/TabLayoutStyle"
            android:layout_height="wrap_content"/>

    </android.support.design.widget.AppBarLayout>

这应该给您想要的结果

Answer 4

关于为什么不显示按钮，可能有两个问题，顺序和高度。

您的工具栏的默认标高为4dp。

所以我建议您尝试做：

将按钮位置移至AppBarLayout后
要添加高于Toolbar的海拔，请注意，如果问题是海拔，则放置视图的顺序无关紧要。

我在下面做了两项更改（海拔高度为6dp），因此您可以简单地复制粘贴您的布局文件：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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:layout_width="match_parent"
    android:layout_height="match_parent"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"
    tools:context="apps.radwin.wintouch.activities.alignmentActivities.WorkordersSelectionActivity"
    tools:showIn="@layout/app_bar_workorders_selection">

    <android.support.design.widget.AppBarLayout
        android:id="@+id/appbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:paddingTop="8dp"
        android:theme="@style/AppTheme.AppBarOverlay">

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="?attr/colorPrimary"
            app:layout_scrollFlags="scroll|enterAlways"
            app:popupTheme="@style/AppTheme.PopupOverlay">

        </android.support.v7.widget.Toolbar>

        <android.support.design.widget.TabLayout
            android:id="@+id/tabsLayoutWorkorderSelection"
            android:layout_width="match_parent"
            style="@style/TabLayoutStyle"
            android:layout_height="wrap_content"
            />

    </android.support.design.widget.AppBarLayout>

<Button
        android:id="@+id/filterButtonMainWorkorderSelection"
        android:layout_width="30dp"
        android:layout_height="30dp"
        android:layout_alignParentTop="true"
        android:layout_alignParentEnd="true"
        android:layout_marginRight="50dp"
        android:elevation="6dp"
        android:layout_marginTop="20dp"
        android:background="@drawable/ic_filter_list_black_24dp"
        android:text=""
        android:textSize="30dp" />

    <android.support.v4.view.ViewPager
        android:id="@+id/workorderSelectionMainViewPagerContainer"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_behavior="@string/appbar_scrolling_view_behavior" />

    <android.support.design.widget.FloatingActionButton
        android:id="@+id/fab"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="end|bottom"
        android:src="@drawable/add_workorders_plus"
        android:layout_marginLeft="@dimen/fab_margin"
        android:layout_marginRight="@dimen/fab_margin"
        android:layout_marginBottom="@dimen/fab_margin"
        android:layout_alignParentBottom="true"
        android:layout_alignParentEnd="true" />



    <android.support.design.widget.CoordinatorLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        android:id="@+id/main_content"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:fitsSystemWindows="true">

        <android.support.v4.widget.NestedScrollView
            android:id="@+id/bottom_sheet"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:clipToPadding="true"
            android:background="#293339"
            app:layout_behavior="android.support.design.widget.BottomSheetBehavior"
            >

            <RelativeLayout
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_centerVertical="true"
                android:layout_toStartOf="@+id/fab">


                <TextView
                    android:id="@+id/workorderFilterPopup_showAllText"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_alignParentStart="true"
                    android:layout_alignParentTop="true"
                    android:layout_marginLeft="10dp"
                    android:gravity="center"
                    android:paddingTop="5dp"
                    android:text="SHOW ALL"
                    android:textAppearance="?android:attr/textAppearanceLarge"
                    android:textColor="@color/white"
                    android:textSize="20dp" />

                <Button
                    android:layout_width="match_parent"
                    android:layout_height="30dp"
                    android:layout_alignParentStart="true"
                    android:layout_alignParentTop="true"
                    android:id="@+id/filter_menu_workorders_show_all"
                    android:background="@color/transparent"
                    android:layout_marginLeft="10dp"
                    android:paddingTop="5dp"
                    />

                <ImageView
                    android:id="@+id/workorderFilterPopup_showAllCheckMark"
                    android:layout_width="30dp"
                    android:layout_height="30dp"
                    android:layout_alignParentTop="true"
                    android:layout_marginRight="20dp"
                    android:layout_alignParentEnd="true"
                    android:src="@drawable/ic_done_black_24dp" />

                <View
                    android:layout_width="match_parent"
                    android:layout_height="2dp"
                    android:layout_marginTop="10dp"
                    android:layout_marginRight="10dp"
                    android:layout_marginLeft="10dp"
                    android:id="@+id/workorderFilterPopup_showAllTextLine"
                    android:background="@color/white"
                    android:layout_below="@+id/workorderFilterPopup_showAllText"
                    ></View>

                <ImageView
                    android:layout_width="35dp"
                    android:layout_height="35dp"
                    android:src="@drawable/ic_alarm_black_24dp"
                    android:id="@+id/workorderFilterPopup_plannedImage"
                    android:layout_marginLeft="10dp"
                    android:layout_marginTop="20dp"
                    android:layout_below="@+id/workorderFilterPopup_showAllTextLine"
                    android:layout_alignParentStart="true" />

                <Button
                    android:layout_width="match_parent"
                    android:layout_height="35dp"
                    android:id="@+id/filter_menu_workorders_planned"
                    android:background="@color/transparent"
                    android:layout_marginLeft="10dp"
                    android:layout_marginTop="20dp"
                    android:layout_below="@+id/workorderFilterPopup_showAllTextLine"
                    android:layout_alignParentStart="true"
                    />

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:textAppearance="?android:attr/textAppearanceLarge"
                    android:text="Planned"
                    android:textColor="@color/white"
                    android:layout_marginLeft="20dp"
                    android:id="@+id/workorderFilterPopup_plannedText"
                    android:layout_alignBottom="@+id/workorderFilterPopup_plannedImage"
                    android:layout_toEndOf="@+id/workorderFilterPopup_plannedImage" />

                <ImageView
                    android:id="@+id/workorderFilterPopup_PlannedCheckMark"
                    android:layout_width="30dp"
                    android:layout_height="30dp"
                    android:layout_marginRight="20dp"
                    android:layout_alignParentEnd="true"
                    android:layout_alignBottom="@+id/workorderFilterPopup_plannedText"
                    android:src="@drawable/ic_done_black_24dp" />

                <ImageView
                    android:layout_width="35dp"
                    android:layout_height="35dp"
                    android:src="@drawable/ic_cloud_off_black_24dp"
                    android:id="@+id/workorderFilterPopup_incompleteImage"
                    android:layout_marginLeft="10dp"
                    android:layout_marginTop="20dp"
                    android:layout_below="@+id/workorderFilterPopup_plannedImage"
                    android:layout_alignParentStart="true" />

                <Button
                    android:layout_width="match_parent"
                    android:layout_height="35dp"
                    android:id="@+id/filter_menu_workorders_incomplete"
                    android:background="@color/transparent"
                    android:layout_marginLeft="10dp"
                    android:layout_marginTop="20dp"
                    android:layout_below="@+id/workorderFilterPopup_plannedImage"
                    android:layout_alignParentStart="true"
                    />

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:textAppearance="?android:attr/textAppearanceLarge"
                    android:text="Uncompleted"
                    android:textColor="@color/white"
                    android:layout_marginLeft="20dp"
                    android:id="@+id/workorderFilterPopup_intompleteText"
                    android:layout_alignBottom="@+id/workorderFilterPopup_incompleteImage"
                    android:layout_toEndOf="@+id/workorderFilterPopup_incompleteImage" />

                <ImageView
                    android:id="@+id/workorderFilterPopup_IncompleteCheckMark"
                    android:layout_width="30dp"
                    android:layout_height="30dp"
                    android:layout_marginRight="20dp"
                    android:layout_alignParentEnd="true"
                    android:layout_alignBottom="@+id/workorderFilterPopup_intompleteText"
                    android:src="@drawable/ic_done_black_24dp" />

                <ImageView
                    android:layout_width="35dp"
                    android:layout_height="35dp"
                    android:src="@drawable/ic_cloud_queue_black_24dp"
                    android:id="@+id/workorderFilterPopup_CompleteImage"
                    android:layout_marginLeft="10dp"
                    android:layout_marginTop="20dp"
                    android:layout_below="@+id/workorderFilterPopup_incompleteImage"
                    android:layout_alignParentStart="true" />

                <Button
                    android:layout_width="match_parent"
                    android:layout_height="35dp"
                    android:id="@+id/filter_menu_workorders_complete"
                    android:background="@color/transparent"
                    android:layout_marginLeft="10dp"
                    android:layout_marginTop="20dp"
                    android:layout_below="@+id/workorderFilterPopup_incompleteImage"
                    android:layout_alignParentStart="true"
                    />

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:textAppearance="?android:attr/textAppearanceLarge"
                    android:text="complete 5"
                    android:textColor="@color/white"
                    android:layout_marginLeft="20dp"
                    android:id="@+id/workorderFilterPopup_completeText"
                    android:layout_alignBottom="@+id/workorderFilterPopup_CompleteImage"
                    android:layout_toEndOf="@+id/workorderFilterPopup_CompleteImage" />

                <ImageView
                    android:id="@+id/workorderFilterPopup_completeCheckMark"
                    android:layout_width="30dp"
                    android:layout_height="30dp"
                    android:layout_marginRight="20dp"
                    android:layout_alignParentEnd="true"
                    android:layout_alignBottom="@+id/workorderFilterPopup_completeText"
                    android:src="@drawable/ic_done_black_24dp" />



                <View
                    android:layout_width="match_parent"
                    android:layout_height="20dp"
                    android:layout_below="@+id/workorderFilterPopup_CompleteImage"
                    ></View>


            </RelativeLayout>



        </android.support.v4.widget.NestedScrollView>

    </android.support.design.widget.CoordinatorLayout>

</RelativeLayout>

Answer 5

为此，您必须使用膨胀选项菜单，而menu.xml文件将如下所示

$ gawk 'BEGIN { print strtonum("160"), strtonum("0160") }'
160 112

我希望这会帮助您尝试错误的方法，否则请使用自定义布局创建自己的应用栏

Answer 6

在RelativeLayout中，XML中的最后一个子元素覆盖了先前定义的所有其他内容。您在这里面临的问题是因为XML的Z顺序不是您所需要的。

要解决此问题，您需要将Button声明移到AppBarLayout声明下方。这是代码段

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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:layout_width="match_parent"
    android:layout_height="match_parent"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"
    tools:context="apps.radwin.wintouch.activities.alignmentActivities.WorkordersSelectionActivity"
    tools:showIn="@layout/app_bar_workorders_selection">

    <!--First declare the AppBarLayout-->
    <android.support.design.widget.AppBarLayout
        android:id="@+id/appbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:paddingTop="8dp"
        android:theme="@style/AppTheme.AppBarOverlay">

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="?attr/colorPrimary"
            app:layout_scrollFlags="scroll|enterAlways"
            app:popupTheme="@style/AppTheme.PopupOverlay">

        </android.support.v7.widget.Toolbar>

        <android.support.design.widget.TabLayout
            android:id="@+id/tabsLayoutWorkorderSelection"
            android:layout_width="match_parent"
            style="@style/TabLayoutStyle"
            android:layout_height="wrap_content"
            />

    </android.support.design.widget.AppBarLayout>

    <!--Your button goes here just before the ViewPager-->
    <Button
        android:id="@+id/filterButtonMainWorkorderSelection"
        android:layout_width="30dp"
        android:layout_height="30dp"
        android:layout_alignParentTop="true"
        android:layout_alignParentEnd="true"
        android:layout_marginRight="50dp"

        android:layout_marginTop="20dp"
        android:background="@drawable/ic_filter_list_black_24dp"
        android:text=""
        android:textSize="30dp" />

    <android.support.v4.view.ViewPager
        android:id="@+id/workorderSelectionMainViewPagerContainer"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_behavior="@string/appbar_scrolling_view_behavior" />

其余的XML可以保持不变。

编辑：您可以更详细地了解这个概念here。

如何把按钮放在android.support.design.widget.AppBarLayout的顶部？

6 个答案: