Building main app layout that should have:
1) ConstraintLayout as root - because its new and trending changer of RelativeLayout
2) AppBarLayout with toolbar inside
3) BottomNavigationView at the bottom ofc
4) FAB at bottom right above BNV
5) And FrameLayout - container for my fragments that must be between AppBarLayout and BottomNavigationView.
I cant position my FrameLayout. It appears only match_parent with full device size or 0dp.
<?xml version="1.0" encoding="utf-8"?><android.support.constraint.ConstraintLayout 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:id="@+id/main_layout" android:layout_width="match_parent" android:layout_height="match_parent"><android.support.design.widget.AppBarLayout android:id="@+id/appbar" android:layout_width="match_parent" android:layout_height="wrap_content" android:paddingTop="@dimen/appbar_padding_top" android:theme="@style/AppTheme.AppBarOverlay" app:layout_constraintTop_toTopOf="@+id/frame_container"><android.support.v7.widget.Toolbar android:id="@+id/toolbar" android:layout_width="match_parent" android:layout_height="?attr/actionBarSize" android:layout_weight="1" android:background="?attr/colorPrimary" app:layout_scrollFlags="scroll|enterAlways" app:popupTheme="@style/AppTheme.PopupOverlay" app:title="@string/app_name"></android.support.v7.widget.Toolbar></android.support.design.widget.AppBarLayout><FrameLayout android:id="@+id/frame_container" android:layout_width="match_parent" android:layout_height="match_parent" app:layout_behavior="@string/appbar_scrolling_view_behavior" app:layout_constraintTop_toTopOf="parent"></FrameLayout><android.support.design.widget.FloatingActionButton android:id="@+id/floatingActionButton" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="bottom|end" android:layout_marginBottom="8dp" android:layout_marginEnd="8dp" android:clickable="true" android:focusable="true" app:layout_constraintBottom_toTopOf="@+id/navigation" app:layout_constraintEnd_toEndOf="parent" app:srcCompat="@drawable/ic_home_black_24dp" /><android.support.design.widget.BottomNavigationView android:id="@+id/navigation" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_gravity="bottom" android:background="@color/primary" app:elevation="8dp" app:itemIconTint="@color/icons" app:itemTextColor="@color/icons" app:layout_constraintBottom_toBottomOf="@+id/frame_container" app:layout_insetEdge="bottom" app:menu="@menu/navigation" /></android.support.constraint.ConstraintLayout>
