added messages

app/src/main/java/com/example/recyclerview/MainActivity.java

@@ -7,18 +7,19 @@ import androidx.recyclerview.widget.RecyclerView;
 import android.os.Bundle;
 
 import java.util.ArrayList;
+import java.util.Date;
 
 public class MainActivity extends AppCompatActivity {
 
-    ArrayList<String> mData;
+    ArrayList<Message> mData;
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
         mData = new ArrayList<>();
-        mData.add("eins");
+        mData.add(new Message("Niklas", "Eine super duper Nachricht", new Date()));
-        mData.add("zwei");
+        mData.add(new Message("Joel", "Eine super Nachricht", new Date()));
-        mData.add("drei");
+        mData.add(new Message("Max", "Eine Nachricht", new Date()));
 
         MyAdapter myAdapter = new MyAdapter(mData);
         RecyclerView mRecyclerView = findViewById(R.id.recyclerView);

app/src/main/java/com/example/recyclerview/Message.java

@@ -0,0 +1,15 @@
+package com.example.recyclerview;
+
+import java.util.Date;
+
+class Message {
+    String sender;
+    String text;
+    Date date;
+
+    Message(String aSender, String aText, Date aDate) {
+        sender = aSender;
+        text = aText;
+        date = aDate;
+    }
+}

app/src/main/java/com/example/recyclerview/MyAdapter.java

@@ -3,6 +3,7 @@ package com.example.recyclerview;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.TextView;
 
 import androidx.annotation.NonNull;
 import androidx.recyclerview.widget.RecyclerView;
@@ -11,9 +12,9 @@ import java.util.ArrayList;
 
 public class MyAdapter extends RecyclerView.Adapter<MyViewHolder> {
 
-    ArrayList<String> mData;
+    ArrayList<Message> mData;
 
-    public MyAdapter(ArrayList<String> aData) {
+    public MyAdapter(ArrayList<Message> aData) {
         mData = aData;
     }
 
@@ -21,14 +22,19 @@ public class MyAdapter extends RecyclerView.Adapter<MyViewHolder> {
     @Override
     public MyViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
         LayoutInflater inflater = LayoutInflater.from(parent.getContext());
-        View newView = inflater.inflate(R.layout.one_row_layout, parent, false);
+        View newView = inflater.inflate(R.layout.message_layout, parent, false);
         MyViewHolder myViewHolder = new MyViewHolder(newView);
         return myViewHolder;
     }
 
     @Override
     public void onBindViewHolder(@NonNull MyViewHolder holder, int position) {
-        holder.mTextView.setText(mData.get(position));
+        TextView sender = holder.mTextView.findViewById(R.id.sender_tv);
+        sender.setText(mData.get(position).sender);
+        TextView text = holder.mTextView.findViewById(R.id.text_tv);
+        text.setText(mData.get(position).text);
+        TextView date = holder.mTextView.findViewById(R.id.date_tv);
+        date.setText(mData.get(position).date.toString());
     }
 
     @Override

app/src/main/java/com/example/recyclerview/MyViewHolder.java

@@ -1,15 +1,15 @@
 package com.example.recyclerview;
 
 import android.view.View;
-import android.widget.TextView;
+import android.widget.LinearLayout;
 
 import androidx.annotation.NonNull;
 import androidx.recyclerview.widget.RecyclerView;
 
 public class MyViewHolder extends RecyclerView.ViewHolder {
-    TextView mTextView;
+    LinearLayout mTextView;
     public MyViewHolder(@NonNull View itemView) {
         super(itemView);
-        mTextView = (TextView) itemView;
+        mTextView = (LinearLayout) itemView;
     }
 }

app/src/main/res/layout/message_layout.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="100dp"
+    android:orientation="vertical">
+
+    <TextView
+        android:id="@+id/sender_tv"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="TextView" />
+
+    <TextView
+        android:id="@+id/text_tv"
+        android:layout_width="match_parent"
+        android:layout_height="62dp"
+        android:text="TextView" />
+
+    <TextView
+        android:id="@+id/date_tv"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="TextView"
+        android:textAlignment="textEnd" />
+</LinearLayout>