如何连接片段列表活动与按钮单击主要活动？

Question

@Override
protected void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    this.title = (String) getTitle();
    // Getting reference to the DrawerLayout
    this.drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
    this.drawerList = (ListView) findViewById(R.id.drawer_list);

    this.fragments[0] = new My_Main_Fragment(this);
    this.fragments[1] = new My_Breakfast_Fragment();
    this.fragments[2] = new My_Lunch_Fragment();
    this.fragments[3] = new My_Dinner_Fragment();
    this.fragments[4] = new My_Dessert_Fragment();
    this.fragments[5] = new My_Seat_Plan_Fragment();
    this.fragments[6] = new My_Beverages_Fragment();

    this.item_titles = getResources().getStringArray(R.array.menu_items);

............................................... .................................................. .................................................. .................................................. ............

public class My_Seat_Plan_Fragment extends Activity{

按钮创建，编辑，查看，删除，查找;

@Override
public void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);

    setContentView(R.layout.air_main_interface);

    create = (Button)findViewById(R.id.note_add);
    edit = (Button)findViewById(R.id.note_edit);
    view = (Button)findViewById(R.id.note_view);
    delet = (Button)findViewById(R.id.note_delete);
    find = (Button)findViewById(R.id.note_find);

    create.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {

            Intent in = new Intent(My_Seat_Plan_Fragment.this,Seat_create.class);
            startActivity(in);
        }
    });

............................................... ................................................. < / p>

在下面附加的两个类中，我需要将主要活动与片段类连接... 主要活动遵循扩展活动实现My_Fragments_Parent {

和片段活动如下所示公共类My_Seat_Plan_Fragment扩展活动{

但我在行

中的主要活动中遇到错误

this.fragments [5] = new My_Seat_Plan_Fragment（）; ------说无法从我的Seat_Plan_Fragment转换为Fragment

因此，如果我更改我的seat_Plan片段扩展活动，则无法完成按钮活动...

Answer 1

如果我理解了这个问题，你可以在你的片段中使用这样的东西：

((MainActivity) getActivity()).someMethod();