Toolbar is not visible on Android 4.X devices

问题

I just updated android.support:appcompat lib to 22.1.1.

Toolbar is visible on a Lollipop device but not on a 4.X device.

I have even tried extending AppCompatActivity, but still no luck. If anything else is required please let me know.

Here is my project styles and base activity xml file.

styles.xml

<style name="AppTheme.Base" parent="Theme.AppCompat.Light.NoActionBar">
        <item name="colorPrimary">@color/primary</item>
        <item name="colorPrimaryDark">@color/primarydark</item>
        <item name="colorAccent">@color/primary</item>
        <item name="colorControlHighlight">@color/primary</item>
        <item name="drawerArrowStyle">@style/DrawerArrowStyle</item>
        <item name="windowActionModeOverlay">true</item>
        <item name="windowActionBarOverlay">true</item>
        <item name="android:windowActionBarOverlay">true</item>
        <item name="android:windowBackground">@color/activity_bg</item>
        <item name="windowActionBar">false</item>
        <item name="windowNoTitle">true</item>

    </style>

activity_base.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/fulllayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent">


    <android.support.v7.widget.Toolbar
        android:minHeight="?attr/actionBarSize"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/toolbar"
        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
        app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
        android:background="@color/primary">

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

    <FrameLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/container">

    </FrameLayout>

</RelativeLayout>

Update :

Issue is with layout inflated in container part. it is overlapping toolbar so i have removed all views and it worked.

Thanks all...

来源：https://stackoverflow.com/questions/29864524/toolbar-is-not-visible-on-android-4-x-devices