android How to set Gravity in RecyclerView

Question

I'm trying to make a chat app, and having a trouble with setting gravity of custom view in the RecyclerView. I've been searching and trying a whole day, but i couldn't make, it always shows like this(ScreenShot).It should be located right of screen not left. But in Android Studio Preview, It shows correctly.Im attaching my source.. please tell me what's wrong..

1. In MainActivity.xml (RecyclerView)

   ......
   <RelativeLayout
       android:background="#9cbad8"
       android:layout_weight="70"
       android:layout_width="match_parent"
       android:layout_height="match_parent">
   <android.support.v7.widget.RecyclerView
       android:layout_alignParentRight="true"
       android:paddingBottom="5dp"
       android:listSelector="@drawable/bg_transparent"
       android:cacheColorHint="@android:color/transparent"
       android:paddingTop="50dp"
       android:id="@+id/list"
       android:layout_width="match_parent"
       android:layout_height="match_parent"/>
   </RelativeLayout>
   .......
   

2.In MessageItem.xml (I set graivity Right, and screenshot shows correctly)

<LinearLayout
        android:id="@+id/my_layout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical">
            <LinearLayout
                android:id="@+id/my_normal_layout"
                android:orientation="horizontal"
                android:gravity="end"
                android:layout_width="match_parent"
                android:layout_height="wrap_content">

                    <TextView
                        android:id="@+id/my_time"
                        android:textSize="10sp"
                        android:layout_marginRight="5dp"
                        android:layout_gravity="bottom"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:text="오후 15:15"/>

                    <TextView
                        android:textAlignment="center"
                        android:layout_marginTop="5dp"
                        android:layout_marginRight="5dp"
                        android:maxWidth="200dp"
                        android:textSize="14sp"
                        android:lineSpacingMultiplier="1.2"
                        android:gravity="center_vertical"
                        android:paddingLeft="10dp"
                        android:paddingRight="15dp"
                        android:paddingTop="8dp"
                        android:paddingBottom="8dp"
                        android:background="@drawable/bubble_my"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:textColor="#000000"
                        android:text="this is Test"
                        android:id="@+id/my_normal_text" />
            </LinearLayout>
</LinearLayout>

Android Layout Preview shows well(ScreenShot)

3. My RecyclerViewHolder

   public class ViewHolder extends RecyclerView.ViewHolder {
       LinearLayout myLayout;
       LinearLayout myNormarLayout;
       LinearLayout myMoreLayout;
   
       public ViewHolder(View v) {
           super(v);
           myLayout = (LinearLayout)v.findViewById(R.id.my_layout);
           myNormarLayout = (LinearLayout)v.findViewById(R.id.my_normal_layout);
           myMoreLayout = (LinearLayout)v.findViewById(R.id.my_more_layout);
       }
   }
   

4. Also in my RecyclerViewAdapter, I changed Gravity Again..

   ....
   holder.myNormarLayout.setVisibility(View.VISIBLE);
   holder.myNormarLayout.setGravity(Gravity.Right);
   ....
   

I had tried almost of things from searching, but they didn't work for this.. please... help me

Answer 1

You could use the Constraint Layout for better performance.

In your case maybe adding a weighted view between the time and text could help, try this

<LinearLayout
    android:id="@+id/my_layout"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical">
        <LinearLayout
            android:id="@+id/my_normal_layout"
            android:orientation="horizontal"
            android:gravity="end"
            android:layout_width="match_parent"
            android:layout_height="wrap_content">

                <TextView
                    android:id="@+id/my_time"
                    android:textSize="10sp"
                    android:layout_marginRight="5dp"
                    android:layout_gravity="bottom"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:text="오후 15:15"/>
                <View
                      android:layout_height="0dp"
                      android:layout_width="0dp"
                      android:layout_weight="0"
                      />
                <TextView
                    android:textAlignment="center"
                    android:layout_marginTop="5dp"
                    android:layout_marginRight="5dp"
                    android:maxWidth="200dp"
                    android:textSize="14sp"
                    android:lineSpacingMultiplier="1.2"
                    android:gravity="center_vertical"
                    android:paddingLeft="10dp"
                    android:paddingRight="15dp"
                    android:paddingTop="8dp"
                    android:paddingBottom="8dp"
                    android:background="@drawable/bubble_my"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:textColor="#000000"
                    android:text="this is Test"
                    android:id="@+id/my_normal_text" />
        </LinearLayout>