Remove left space within toolbar

[titosobabas]

Why do i getting this left space within my toolbar? I want to cover the whole width of the parent toolbar space.

This is my code:

<android.support.v7.widget.Toolbar android:id="@+id/toolbar_activity"
    android:layout_width="match_parent"
    android:layout_height="?attr/actionBarSize"
    android:background="@color/toolbar_background"
    app:titleTextColor="@color/toolbar_text_color"

    android:elevation="0dp"
    android:theme="@style/ToolbarTheme"
    app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"

    >

    <com.miguelcatalan.materialsearchview.MaterialSearchView
        android:id="@+id/search_view"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />
</android.support.v7.widget.Toolbar>

[titosobabas]

Well, looks like i've resolve it adding and letting my xml like this:

<android.support.v7.widget.Toolbar android:id="@+id/toolbar_activity"
    android:layout_width="match_parent"
    android:layout_height="?attr/actionBarSize"
    android:background="@color/toolbar_background"
    app:titleTextColor="@color/toolbar_text_color"

    android:elevation="0dp"
    android:theme="@style/ToolbarTheme"
    app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:contentInsetLeft="0dp"
    android:contentInsetStart="0dp"
    app:contentInsetLeft="0dp"
    app:contentInsetStart="0dp"
    android:contentInsetRight="0dp"
    android:contentInsetEnd="0dp"
    app:contentInsetRight="0dp"
    app:contentInsetEnd="0dp"
    >

    <com.miguelcatalan.materialsearchview.MaterialSearchView
        android:id="@+id/search_view"

        android:layout_width="match_parent"
        android:layout_height="wrap_content" />
</android.support.v7.widget.Toolbar>

[FANMixco]

Well, looks like i've resolve it adding and letting my xml like this:

<android.support.v7.widget.Toolbar android:id="@+id/toolbar_activity"
    android:layout_width="match_parent"
    android:layout_height="?attr/actionBarSize"
    android:background="@color/toolbar_background"
    app:titleTextColor="@color/toolbar_text_color"

    android:elevation="0dp"
    android:theme="@style/ToolbarTheme"
    app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:contentInsetLeft="0dp"
    android:contentInsetStart="0dp"
    app:contentInsetLeft="0dp"
    app:contentInsetStart="0dp"
    android:contentInsetRight="0dp"
    android:contentInsetEnd="0dp"
    app:contentInsetRight="0dp"
    app:contentInsetEnd="0dp"
    >

    <com.miguelcatalan.materialsearchview.MaterialSearchView
        android:id="@+id/search_view"

        android:layout_width="match_parent"
        android:layout_height="wrap_content" />
</android.support.v7.widget.Toolbar>

Maybe to become optional, but from my understanding, this comes from Material Design standards. You could raise a pull request with the optional feature.