Android Lollipop not showing android:background image

Question

I have designed screen where I have used JPEG image as layout background. The complete UI screen is visible correctly in Android 8(GingerBread) to Android 19(Kitkat). The layout background is not visible in Android 20+(Lollipop)

I am using App Compatibility Library.

See the screenshot below

Emulator Android 8

---

Device Kitkat

---

Device Lollipop

---

Solutions already tried

1. Create another folder mipmap and copied the same image there and try to access it using @mipmap\image_background. Nothing changed.

Layout XML

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    style="@style/mainBody"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">
<!-- android:background="@drawable/login_bg"  -->
    <View
        android:id="@+id/vwStruts"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:layout_centerInParent="true" />


    <TableLayout
        android:id="@+id/tblLogin"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true"
        android:layout_margin="5dp"
        android:padding="5dp" >

        <TableRow
            android:id="@+id/tbrUserId"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginBottom="10dp"
            android:gravity="center" >

            <EditText
                android:id="@+id/edtUserId"
                style="@style/EditText"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:ems="10"
                android:layout_marginLeft="5dp"
                android:layout_marginRight="5dp"
                android:hint="@string/hintEmpId" >
                <requestFocus />
            </EditText>
        </TableRow>

        <TableRow
            android:id="@+id/tbrPassword"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginBottom="10dp"
            >

            <EditText
                android:id="@+id/edtPassword"
                style="@style/EditText"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:layout_marginLeft="5dp"
                android:layout_marginRight="5dp"
                android:ems="10"
                android:hint="@string/hintPassword"
                android:inputType="textPassword" />

        </TableRow>

        <TableRow
            android:id="@+id/tbrLoginAndClear"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:gravity="center" >

            <Button
                android:id="@+id/btnLogin"
                style="@style/LoginButton"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:minHeight="40dp"
                android:layout_weight="1"
                android:layout_marginLeft="5dp"
                android:layout_marginRight="5dp"
                android:text="@string/login" />
        </TableRow>
    </TableLayout>

    <ImageView
        android:id="@+id/imgLogo"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_above="@+id/tblLogin"
        android:layout_centerHorizontal="true"
        android:layout_marginBottom="@dimen/tblLoginMargin"
        android:src="@raw/footer_logo" />

</RelativeLayout>

---

styles.xml, there is NO folder for values-v21

 <resources xmlns:android="http://schemas.android.com/apk/res/android">

    <!--
        Base application theme, dependent on API level. This theme is replaced
        by AppBaseTheme from res/values-vXX/styles.xml on newer devices.

    -->
    <style name="AppBaseTheme" parent="Theme.AppCompat.Light">
        <!--
            Theme customizations available in newer API levels can go in
            res/values-vXX/styles.xml, while customizations related to
            backward-compatibility can go here.

        -->
    </style>

    <!-- Application theme. -->
    <style name="AppTheme" parent="AppBaseTheme">
        <!-- All customizations that are NOT specific to a particular API-level can go here. -->
    </style>

</resources>

login button drawable

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">

    <!-- On Pressed state -->
    <item android:state_pressed="true" >
        <shape>
            <solid android:color="@color/btn_login_on_press" />         
        </shape>

     </item>

    <!-- enabled true Not pressed, normal state -->
    <item android:state_pressed="false" android:state_enabled="true">
         <shape>
            <solid android:color="@color/btn_login_normal" />           
        </shape>
    </item>

</selector>

EDIT 1 : Added Styles.xml and button drawables EDIT 2 : Mention usage of support library

Answer 1

After long time of test and trial, I finally realized..there is nothing wrong with the code or xml or styling or theme settings.

The little needle in the stack of issue was "Prevent bitmap too large to be uploaded into a texture android"

Reason, when rendering image on Screen OpenGLRenderer was not loading bitmap for high resolution devices and hence no image was coming on nexus devices.

The work around I used was to manually resize the bitmap progrmatically in onCreate() method and set as background for the layout.

Hope it helps for anyone who is not able to load background.

Feel free to query for more!!