ADD file via upload

main/java/com/example/musicwork/chuangguan/GradeInfoActivity.java

@@ -0,0 +1,36 @@
+package com.example.musicwork.chuangguan;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.widget.TextView;
+
+import com.example.musicwork.Data;
+import com.example.musicwork.R;
+import com.example.musicwork.SignIn;
+import com.example.musicwork.chuangguan.GameService;
+
+import java.util.HashMap;
+
+public class GradeInfoActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_score);
+        final Data data = (Data)getApplication();
+        final String name = data.getUsername();
+
+        HashMap<String , String> paramsgrade= GameService.params;
+        TextView username=(TextView) this.findViewById(R.id.username);
+        TextView avg=(TextView) this.findViewById(R.id.avg);
+        TextView max=(TextView) this.findViewById(R.id.max);
+        TextView rank=(TextView) this.findViewById(R.id.rank);
+        username.setText("昵    称："+ name);
+        avg.setText("平均成绩："+paramsgrade.get("avg"));
+        max.setText("最高成绩："+paramsgrade.get("max"));
+        rank.setText("排    名："+paramsgrade.get("rank"));
+
+    }
+}