softwarehomework/testing/SplashActivity.java

package com.example.doitnow; // 確保你的 package 名稱正確

import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import androidx.appcompat.app.AppCompatActivity;

public class SplashActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_splash);

        // 隱藏標題欄
        if (getSupportActionBar() != null) {
            getSupportActionBar().hide();
        }

        // 1秒後跳轉到 MainActivity
        new Handler().postDelayed(new Runnable() {
            @Override
            public void run() {
                Intent i = new Intent(SplashActivity.this, MainActivity.class);
                startActivity(i);
                finish(); // 關閉當前活動，防止返回閃屏頁
            }
        }, 1000);
    }
}