ToolBar always raised Android

Question

I want to extend my application toolbar, but it does not seem to work correctly.

My code is this:

<RelativeLayout android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    xmlns:android="http://schemas.android.com/apk/res/android">
    <android.support.design.widget.AppBarLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:theme="@style/AppTheme.AppBarOverlay"
        >
    <TextView
        android:text="Remplissez le formulaire pour signaler un probléme dans votre batîment"
        android:layout_width="201dp"
        android:layout_height="59dp"
        android:id="@+id/textView"
        android:textColorLink="@color/common_google_signin_btn_text_dark_default"
        android:textAlignment="center"
        android:gravity="center_vertical|center_horizontal|center"
        android:layout_gravity="center_vertical|center_horizontal"
        android:textColor="@color/textbody"

        />
    <View
        android:layout_width="30dp"
        android:layout_height="1dp"
        android:background="#FFFFFF" />
</android.support.design.widget.AppBarLayout>


<RelativeLayout
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/allLayout"
    android:elevation="20dp"

    >


    <LinearLayout
        android:layout_width="fill_parent"
        android:orientation="vertical"
        android:layout_height="fill_parent"
        android:id="@+id/lay"
        android:layout_marginLeft="0dp"
        android:layout_marginRight="0dp"
        android:paddingLeft="0dp"
        android:paddingRight="0dp"
        android:layout_marginTop="84dp"
        android:layout_alignParentTop="true"
        android:layout_alignParentStart="true"
        android:weightSum="1">



        <EditText
            android:id="@+id/EditTextEmail"
            android:layout_height="wrap_content"
            android:hint="@string/feedbackemail"
            android:inputType="textEmailAddress"
            android:layout_width="360dp">
        </EditText>

        <Spinner
            android:id="@+id/nomSite"
            android:layout_width="match_parent"
            android:layout_height="39dp"
            android:prompt="@string/nomdusite"
            android:entries="@array/categories"
            android:hint="Nom du site"
            android:layout_marginTop="20dp" />

        <Spinner
            android:id="@+id/categories"
            android:layout_width="match_parent"
            android:layout_height="39dp"
            android:prompt="@string/types"
            android:entries="@array/types"
            android:layout_marginTop="25dp" />

        <EditText
            android:layout_width="354dp"
            android:layout_height="136dp"
            android:inputType="text"
            android:hint="Description*"
            android:ems="10"
            android:id="@+id/message"
            android:textSize="18sp"
            android:layout_marginTop="10dp" />

        <Button
            android:text="Ajouter une photo"
            android:layout_width="316dp"
            android:layout_height="wrap_content"
            android:id="@+id/button2"
            android:textColorLink="@android:color/holo_blue_dark"
            android:drawableLeft="@android:drawable/ic_menu_camera"
            android:gravity="center_vertical|center_horizontal|center"
            android:layout_gravity="center_vertical|center_horizontal"
            android:onClick="addPhoto"
            android:layout_marginTop="15dp" />

        <Button
            android:text="Valider"
            android:layout_width="113dp"
            android:layout_height="wrap_content"
            android:id="@+id/button3"
            android:gravity="center_vertical|center_horizontal|center"
            android:layout_gravity="center_vertical|center_horizontal"
            android:onClick="sendForm"
            android:layout_marginTop="10dp" />


    </LinearLayout>

</RelativeLayout>

As you can see in the picture, some part of the toolbar has more elevation than the rest. How do i fix it?

Answer 1

Add this line getSupportActionBar().setElevation(0); in your onCreate() method:

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_your_layout);
    getSupportActionBar().setElevation(0);
}

Answer 2

try to add this properties to appbarlayout tag in xml

android:fitsSystemWindows="true"   
android:theme="@style/AppTheme.AppBarOverlay"
app:layout_scrollFlags="scroll|exitUntilCollapsed"