ADD file via upload

main/res/layout/mode_layout.xml

@@ -0,0 +1,47 @@
+<?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="match_parent"
+    android:orientation="vertical"
+    android:background="@drawable/r2"
+    android:gravity="center">
+
+    <TextView
+        android:id="@+id/textView3"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:gravity="center"
+        android:textSize="30dp"
+        android:textColor="#000"
+        android:layout_marginBottom="20dp"
+        android:text="请选择难度" />
+
+    <Button
+        android:id="@+id/easy"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_margin="10dp"
+        android:onClick="modeBtnClick"
+        android:background="@drawable/freeshape"
+        android:text="简单模式" />
+
+    <Button
+        android:id="@+id/normol"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_margin="10dp"
+        android:onClick="modeBtnClick"
+        android:background="@drawable/freeshape"
+        android:text="普通模式" />
+
+    <Button
+        android:id="@+id/diffculty"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_margin="10dp"
+        android:onClick="modeBtnClick"
+        android:background="@drawable/freeshape"
+        android:text="困难模式" />
+
+
+</LinearLayout>