结对作业冲刺7

实现自己的聊天框

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_marginTop="@dimen/_8sdp"
    android:padding="@dimen/_4sdp">

    <TextView
        android:id="@+id/textMessage"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:background="@drawable/background_sent_meaasge"
        android:paddingStart="@dimen/_12sdp"
        android:paddingTop="@dimen/_8sdp"
        android:paddingEnd="@dimen/_12sdp"
        android:paddingBottom="@dimen/_8sdp"
        android:textColor="@color/white"
        app:layout_constraintWidth_max="wrap"
        android:textSize="@dimen/_13ssp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintWidth_percent="0.8"/>

    <TextView
        android:id="@+id/textDateTime"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginTop="@dimen/_4sdp"
        android:textColor="@color/secondary_text"
        android:textSize="@dimen/_8ssp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintTop_toBottomOf="@id/textMessage" />

</androidx.constraintlayout.widget.ConstraintLayout>