BH/Game2048/app/src/main/java/com/example/game2048/MenuActivity.java

package com.example.game2048;

import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

import androidx.appcompat.app.AppCompatActivity;

public class MenuActivity extends AppCompatActivity {
    public TextView hy;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.menu);//调用xml中activity_main。
        Button b1 = (Button) this.findViewById(R.id.bt_ks);
        b1.setOnClickListener(new ButtonListenerI());
        Button b2 = (Button) this.findViewById(R.id.bt_st);
        b2.setOnClickListener(new ButtonListenerII());

        Intent intent = getIntent();
        String hy = intent.getStringExtra("Name");
        TextView textView = (TextView)findViewById(R.id.hy);
        textView.setText("Hello, "+hy);
    }
    private class ButtonListenerI implements View.OnClickListener{
        @Override
        public void onClick(View v){
            Intent intent=new Intent(MenuActivity.this,GameActivity.class);//设置切换对应activity
            startActivity(intent);//开始切换
        }
    }

    private class ButtonListenerII implements View.OnClickListener{
        @Override
        public void onClick(View v){
            Intent intent=new Intent(MenuActivity.this,GameActivityII.class);//设置切换对应activity
            startActivity(intent);//开始切换
        }
    }
}