在 SecondActivity中定义一个启动activity并传参的静态方法

public static void actionStart(Context context, String data1, String data2) {
    Intent intent = new Intent(context, SecondActivity.class);
    intent.putExtra("param1", data1);
    intent.putExtra("param2", data2);
    context.startActivity(intent);
}

在MainActivity中调用

SecondActivity.actionStart(MainActivity.this, "data1", "data2");