RecyclerView max hight is exeeding the display-CodePudding

I want to set the max hight of my RecyclerView not to exeed my constraint layout max parameters. I tried many solutions from stack overflow but nothing seems to work.

Colors are just to make it more visible

What i have

Max hight should be this

What i have tried:

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.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:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".NotfallSelbsthilfeSkillsHochStressEditActivity">

    <!--Actionbar Notfall Selbsthilfe Skills list Hoch-Stress bearbeiten-->
    <androidx.appcompat.widget.Toolbar
        android:id="@ id/notfall_selbsthilfe_skills_hochStress_list_bearbeiten_actionbar"
        android:layout_width="match_parent"
        android:layout_height="65dp"
        android:background="@drawable/actionbar_design_main"
        app:titleMarginStart="0dp"
        app:titleTextColor="@color/white"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" >

        <!--Relativelayout of back arrow-->
        <RelativeLayout
            android:layout_width="45dp"
            android:layout_height="40dp"
            android:layout_gravity="start"
            android:layout_marginStart="0dp"
            android:layout_marginEnd="0dp">

            <!--ImageButton of back arrow-->
            <ImageButton
                android:id="@ id/notfall_selbsthilfe_skills_hochStress_list_bearbeiten_backArrow"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_marginStart="0dp"
                android:layout_marginTop="0dp"
                android:layout_marginEnd="0dp"
                android:layout_marginBottom="0dp"
                android:background="@drawable/back_arrow" />
        </RelativeLayout>

        <!--Relative View of actionbar headline-->
        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_marginStart="0dp">

            <!--Textview of actionbar headline Notfall Selbsthilfe Skills list Hoch-Stress bearbeiten-->
            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_centerInParent="true"
                android:fontFamily="sans-serif-medium"
                android:text="@string/notfall_selbsthilfe_skills_hochStress_bearbeiten"
                android:textAllCaps="false"
                android:textColor="@color/white"
                android:textSize="21dp" />
        </RelativeLayout>
    </androidx.appcompat.widget.Toolbar>

    <!--ImageView of background-->
    <ImageView
        android:id="@ id/notfall_selbsthilfe_skills_hochStress_list_bearbeiten_background"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginTop="65dp"
        android:src="@color/red2"/>

    <!--Constraintlayout for content inside Hoch_Stress bearbeiten-->
    <!--RecyclerView for added Skills-->
    <androidx.recyclerview.widget.RecyclerView
        android:id="@ id/notfall_selbsthilfe_skills_hochStress_list_bearbeiten_skill_recycleView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:clickable="true"

        app:layout_constrainedHeight="true"
        app:layout_constraintHeight_min="1dp"
        app:layout_constraintHeight_max="710dp"

        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintTop_toBottomOf="@ id/notfall_selbsthilfe_skills_hochStress_list_bearbeiten_actionbar"
        app:layout_constraintBottom_toTopOf="@ id/notfall_selbsthilfe_skills_hochStress_list_bearbeiten_add"
        />

    <!--ImageView for button to add Skills-->
    <ImageView
        android:id="@ id/notfall_selbsthilfe_skills_hochStress_list_bearbeiten_add"
        android:layout_width="50dp"
        android:layout_height="50dp"
        android:alpha="1"
        android:src="@drawable/add_black"
        app:layout_constraintTop_toBottomOf="@ id/notfall_selbsthilfe_skills_hochStress_list_bearbeiten_skill_recycleView"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        />


</androidx.constraintlayout.widget.ConstraintLayout>

Whatever i try won't work and the recyclerView always exeeds the screen limit and won't let the user access the add button anymore.

My button more and more gets pushed of the screen

What am i doing wrong?

CodePudding user response：

I have made some changes to your layout. In general, I removed all match_parent sizes in direct children of the ConstraintLayout replacing them with 0dp and the constraints to the sides of the ConstraintLayout. I also placed the RecyclerView and the bottom ImageView into a vertical chain assuming that you want the ImageView to be below the RecyclerView.

Here is the updated layout. I made several changes to color, drawables, etc. The core layout is still the same.

<androidx.constraintlayout.widget.ConstraintLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".NotfallSelbsthilfeSkillsHochStressEditActivity">

    <!--Actionbar Notfall Selbsthilfe Skills list Hoch-Stress bearbeiten-->
    <androidx.appcompat.widget.Toolbar
        android:id="@ id/notfall_selbsthilfe_skills_hochStress_list_bearbeiten_actionbar"
        android:layout_width="0dp"
        android:layout_height="65dp"
        android:background="@android:color/holo_blue_light"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:titleMarginStart="0dp"
        app:titleTextColor="@color/white">

        <RelativeLayout
            android:layout_width="45dp"
            android:layout_height="40dp"
            android:layout_gravity="start"
            android:layout_marginStart="0dp"
            android:layout_marginEnd="0dp">

            <!--ImageButton of back arrow-->
            <ImageButton
                android:id="@ id/notfall_selbsthilfe_skills_hochStress_list_bearbeiten_backArrow"
                android:layout_width="45dp"
                android:layout_height="40dp"
                android:layout_marginStart="0dp"
                android:layout_marginTop="0dp"
                android:layout_marginEnd="0dp"
                android:layout_marginBottom="0dp"
                android:background="@android:color/holo_red_light" />
        </RelativeLayout>

        <!--Relative View of actionbar headline-->
        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_marginStart="0dp">

            <!--Textview of actionbar headline Notfall Selbsthilfe Skills list Hoch-Stress bearbeiten-->
            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_centerInParent="true"
                android:fontFamily="sans-serif-medium"
                android:text="Some text here"
                android:textAllCaps="false"
                android:textColor="@color/white"
                android:textSize="21dp" />
        </RelativeLayout>
    </androidx.appcompat.widget.Toolbar>

    <!--ImageView of background-->
    <ImageView
        android:id="@ id/notfall_selbsthilfe_skills_hochStress_list_bearbeiten_background"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:layout_marginTop="65dp"
        android:src="@android:color/holo_red_light"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <!--Constraintlayout for content inside Hoch_Stress bearbeiten-->
    <!--RecyclerView for added Skills-->
    <androidx.recyclerview.widget.RecyclerView
        android:id="@ id/notfall_selbsthilfe_skills_hochStress_list_bearbeiten_skill_recycleView"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:background="@android:color/holo_orange_light"
        android:clickable="true"
        app:layout_constrainedHeight="true"
        app:layout_constraintBottom_toTopOf="@ id/notfall_selbsthilfe_skills_hochStress_list_bearbeiten_add"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHeight_max="710dp"
        app:layout_constraintHeight_min="1dp"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@ id/notfall_selbsthilfe_skills_hochStress_list_bearbeiten_actionbar"
        app:layout_constraintVertical_chainStyle="spread_inside" />

    <!--ImageView for button to add Skills-->
    <ImageView
        android:id="@ id/notfall_selbsthilfe_skills_hochStress_list_bearbeiten_add"
        android:layout_width="50dp"
        android:layout_height="50dp"
        android:alpha="1"
        android:src="@drawable/ic_launcher_foreground"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@ id/notfall_selbsthilfe_skills_hochStress_list_bearbeiten_skill_recycleView" />

</androidx.constraintlayout.widget.ConstraintLayout>

Here is how the updated layout looks in the Android Studio designer:

I didn't do any structural changes to the toolbar, but you can remove the RelativeLayouts in the toolbar as well,