CODEWITHSUNDEEP
androidandroid-constraintlayout
ohnu93
ohnu93

Reputation: 273

RecyclerView in a ConstraintLayout size change

I am very new to using ConstraintLayout. In trying to learn to use this, I decided to make a simple chat app for myself.

I have a RecyclerView to show chat list and a ConstraintLayout under it for typing in my message (my code is at the bottom). I would very much want to use "fill-parent" attribute but I found that it's deprecated.

So I have set my RecyclerView to be constrained at the bottom by the ConstraintLayout below it. From this I am expecting the RecyclerView to "shrink" when the keyboard comes up to type my message in. However, it is not doing so, but rather stays at its full height.

Are there ways to resolve this?

Here's my code : 

<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:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingTop="10dp"
    android:paddingBottom="10dp"
    android:paddingLeft="5dp"
    android:paddingRight="5dp"
    tools:context=".StreamPlayer.StreamPlayerActivity">

    <android.support.v7.widget.RecyclerView
        android:id="@id/ChatRecyclerView"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:scrollbars="vertical"
        app:layout_constraintBottom_toTopOf="@id/ChatTypingLayout"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        tools:listitem="@layout/chat_layout" /

    <android.support.constraint.ConstraintLayout
        android:id="@id/ChatTypingLayout"
        android:layout_width="match_parent"
        android:layout_height="40dp"
        android:orientation="horizontal"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent">

    <EditText
        android:id="@id/ChatNameEditText"
        android:layout_width="0dp"
        android:layout_height="match_parent"
        android:hint="@string/ChatNameEditText"
        android:inputType="text"
        android:maxLines="1"
        app:layout_constraintHorizontal_weight="1"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toLeftOf="@id/ChatMessageEditText"
        app:layout_constraintStart_toStartOf="parent"
        android:textSize="10dp"/>

    <EditText
        android:id="@id/ChatMessageEditText"
        android:layout_width="0dp"
        android:layout_height="match_parent"
        android:hint="@string/ChatMessageEditText"
        android:inputType="textLongMessage"
        android:maxLines="3"
        app:layout_constraintHorizontal_weight="4"
        app:layout_constraintLeft_toRightOf="@id/ChatNameEditText"
        app:layout_constraintRight_toLeftOf="@id/ChatSendButton"
        android:textSize="10dp"/>

    <Button
        android:id="@id/ChatSendButton"
        android:layout_width="0dp"
        android:layout_height="match_parent"
        android:text="@string/ChatSendButton"
        app:layout_constraintHorizontal_weight="2"
        app:layout_constraintLeft_toRightOf="@id/ChatMessageEditText"
        app:layout_constraintRight_toRightOf="parent"/>
    </android.support.constraint.ConstraintLayout>
</android.support.constraint.ConstraintLayout>

This is when the keyboard has not come up Keyboard not open

This happens when the keyboard comes up Keyboard open

Thanks in advance

Upvotes: 1

Views: 781

Answers (2)

Matthew Mitchell
Matthew Mitchell

Reputation: 514

Check out this article on the Android developers' site which describes how the framework handles the soft keyboard appearing.

The android:windowSoftInputMode attribute can be used to specify what happens on a per-activity basis: whether the layout is resized or whether it scrolls etc.

Answer from Christopher Orr

You can also try this in your onCreate() method:

getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN);

Upvotes: 1

fernando angli
fernando angli

Reputation: 61

I think you should consider taking the second ConstraintLayout and making everything in one, that is the main purpose of the ConstraintLayout, avoiding nested layouts. And, how are you initializing your recycler view in code? are you setting a fixed height?

Upvotes: 0

Related Questions