android

DEV4.5/ChatRelative/app/src/main/java/com/example/chat/MainActivity.java

@@ -0,0 +1,13 @@
+package com.example.chat;
+
+import androidx.appcompat.app.AppCompatActivity;
+import android.os.Bundle;
+
+public class MainActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+    }
+}