从启动活动移动到主活动时，意图正在生成空对象引用

Intent intent = new Intent(SplashActivity.this, MainActivity.class);
startActivity(intent);
finish(); // 可选，用于关闭启动活动

// 在UI线程中创建意图
runOnUiThread(new Runnable() {
    @Override
    public void run() {
        Intent intent = new Intent(SplashActivity.this, MainActivity.class);
        startActivity(intent);
    }
});

Intent intent = new Intent(SplashActivity.this, MainActivity.class);
if (intent != null) {
    startActivity(intent);
} else {
    Log.e("SplashActivity", "Intent is null");
}

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_splash);

    // 启动主活动
    Intent intent = new Intent(this, MainActivity.class);
    startActivity(intent);
    finish();
}

Intent intent = new Intent(this, MainActivity.class);
intent.putExtra("key", "value"); // 确保"value"是有效的字符串
startActivity(intent);