I have a list, that view some items, but in the list there is between the rows so much place.

Here are the card_item_std.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/cardview_shadow_end_color"
    android:padding="16dp"
    android:weightSum="1">

    <LinearLayout
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:orientation="vertical">

        <TextView
            android:id="@ id/tvId"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            tools:text="Id" />

        <TextView
            android:id="@ id/tvName"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textSize="16sp"
            tools:text="Name" />
    </LinearLayout>
    <Button
        android:id="@ id/btnDelete"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="center_vertical"
        android:text="Delete"
        android:textAllCaps="false" />
</LinearLayout>

In my activity_main.xml is only the full page defined and the list in the bottom as recycleview

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
    android:orientation="vertical"
    tools:context=".MainActivity">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:layout_marginTop="16dp"
        android:gravity="center_vertical"
        android:text="SQLite Demo"
        android:textSize="20sp" />

    <EditText
        android:id="@ id/edName"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="16dp"
        android:hint="Enter Name" />

    <EditText
        android:id="@ id/edEmail"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginEnd="16dp"
        android:layout_marginBottom="16dp"
        android:hint="Enter Email" />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center">

        <Button
            android:id="@ id/btnAdd"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Add"
            android:textAllCaps="false" />

        <Button
            android:id="@ id/btnView"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginStart="8dp"
            android:text="View"
            android:textAllCaps="false" />

    </LinearLayout>

    <androidx.recyclerview.widget.RecyclerView
        android:id="@ id/recyclerView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginTop="16dp" />
</LinearLayout>

Is there a part, where I need to reduce the padding of the list items?

On the picture you can see that between the rows are so much space.

CodePudding user response：

Update this line android:layout_height="wrap_content" as follow

<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@color/cardview_shadow_end_color"
    android:padding="16dp"
    android:weightSum="1">
    
...    

/>