ActionBar covering my activity

问题:

I have an activity whose xml is:

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout 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"
    android:fitsSystemWindows="true"
    tools:context="ivykoko.com.likechecker.MainActivity">

    <android.support.v7.widget.RecyclerView
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@+id/reciclador"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:padding="3dp"
        android:scrollbars="vertical" />


    <android.support.design.widget.AppBarLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        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:popupTheme="@style/AppTheme.PopupOverlay" />

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

    <include layout="@layout/content_main" />


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

And it looks like this:

As you can see, the action bar is covering the top of the recyclerview. What can I do?

Thanks in advance.

回答1:

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <android.support.design.widget.AppBarLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        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:popupTheme="@style/AppTheme.PopupOverlay" />

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

    <android.support.v7.widget.RecyclerView xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@+id/reciclador"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:padding="3dp"
        android:scrollbars="vertical" />

    <include layout="@layout/content_main" />
</LinearLayout>

回答2:

Add app:layout_behavior="@string/appbar_scrolling_view_behavior" to your RecyclerView. This will cause the CoordinatorLayout to position it below the AppBarLayout.

回答3:

Put Appbar as direct first child of coordinator layout and use app:layout_behavior="@string/appbar_scrolling_view_behavior" in RecyclerView.