How to place frame layout in bottom in the linear layout

Question

I am creating custom keyboard in Android. Keyboard view will be in frame layout. And I want to place this frame layout in bottom in the linear layout. Please give some idea for this.

<androidx.appcompat.widget.LinearLayoutCompat xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Testing"/>

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Testing 2"/>

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Testing 3"/>

    <FrameLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:gravity="bottom|end"
        android:layout_gravity="bottom">
        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="Custom Keyboard"/>

    </FrameLayout>

</androidx.appcompat.widget.LinearLayoutCompat>

Answer 1

The easiest way is to put a View with the attribute android:layout_weight = "1" between the last TextView and the FrameLayout

...

<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Testing 3"/>

<View
    android:layout_width="match_parent"
    android:layout_height="0dp"
    android:layout_weight="1" />

<FrameLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    android:gravity="bottom|end"
    android:layout_gravity="bottom">
    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Custom Keyboard"/>

</FrameLayout>

...

Anyway, in this case I suggest using Relative Layout or, better, Constraint Layout