android - 工具栏未显示在屏幕底部

Question

为什么 toolbar 没有显示在底部？

private void initToolbars() {

    Toolbar toolbarTop = (Toolbar) findViewById(R.id.toolbar_top);
    setSupportActionBar(toolbarTop);

    Toolbar toolbarBottom = (Toolbar) findViewById(R.id.drawer_layout);
    toolbarBottom.setOnMenuItemClickListener(new Toolbar.OnMenuItemClickListener() {
        @Override
        public boolean onMenuItemClick(MenuItem item) {
            switch(item.getItemId()){
                case R.id.action_settings:
                    // TODO
                    break;
                // TODO: Other cases
            }
            return true;
        }
    });
    toolbarBottom.inflateMenu(R.menu.menu_main);

}

这个 xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">


    <android.support.v7.widget.Toolbar
        android:id="@+id/toolbar_top"
        android:layout_height="wrap_content"
        android:layout_width="match_parent"
        android:minHeight="?attr/actionBarSize" />

    <android.support.v7.widget.Toolbar
        android:id="@+id/drawer_layout"
        android:layout_height="wrap_content"
        android:layout_width="match_parent"
        android:layout_alignParentBottom="true"
        android:layout_gravity="bottom"
        android:minHeight="?attr/actionBarSize" />



</RelativeLayout>

我只在顶部获得工具栏

Answer 1

试试这个

<RelativeLayout ...>
    <!-- top toolbar -->
    <Toolbar
        android:id="@+id/top_toolbar"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:background="?attr/colorPrimary"
    >

        ...

    </Toolbar>

    <ImageView
        android:id="@+id/image"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_below="@id/top_toolbar"
        android:src="@drawable/week1"
    />

    <!-- bottom toolbar -->
    <Toolbar
        android:id="@+id/bottom_toolbar"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:background="#000000"
        android:layout_alignParentBottom="true">

    </Toolbar>

    <!-- scrollable pane -->
    <ScrollView
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_below="@id/image"
        android:layout_above="@id/bottom_toolbar">

        ...

    </ScrollView>
</RelativeLayout>