Question

我正在执行android项目，实现片段并遇到麻烦。这是麻烦的故事：

我创建了Main活动，该活动使用Fragment Layout保存片段。我这样做是因为我想使用抽屉菜单实现导航菜单。所有这些步骤都可以正常工作。

代码如下：

public class MainActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener {
private DrawerLayout drawer;
private Toolbar toolbar;
private NavigationView navigationView;
private ActionBarDrawerToggle toggle;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    toolbar = findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);

    drawer = findViewById(R.id.layout_drawer);
    navigationView = findViewById(R.id.nav_view);
    navigationView.setNavigationItemSelectedListener(this);

    toggle = new ActionBarDrawerToggle(this,drawer,toolbar,
            R.string.navigation_drawer_open, R.string.navigation_drawer_close);
    drawer.addDrawerListener(toggle);
    toggle.syncState();

    if (savedInstanceState == null) {
        getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container,
                new Main_fragment()).commit();
        navigationView.setCheckedItem(R.id.home);
    }
}

直到这里都可以正常工作。

然后在片段活动中，我触发了Textview并调用新活动。我这样做是因为我想为这些片段制作一个新的占位符，并放置不同的“抽屉菜单”。

她是代码：

public class Main_fragment extends Fragment{
TextView t1,t2,t3,t4,t5,t6,t7;

@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable final Bundle savedInstanceState) {
    View v = inflater.inflate(R.layout.main_fragment,container,false);
    //define buttons
    t1 = (TextView) v.findViewById(R.id.txt1);
    t2 = (TextView) v.findViewById(R.id.txt2);
    t3 = (TextView) v.findViewById(R.id.txt3);
    t4 = (TextView) v.findViewById(R.id.txt4);
    t5 = (TextView) v.findViewById(R.id.txt5);
    t6 = (TextView) v.findViewById(R.id.txt6);
    t7 = (TextView) v.findViewById(R.id.txt7);


    t1.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            //intent to the second activity
            Intent i = new Intent(getActivity(), Social_Container.class);
            startActivity(i);
        }
    });
    t2.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent i = new Intent(getActivity(), Social_Container.class);
            startActivity(i);
        }
    });
    t3.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent i = new Intent(getActivity(), Social_Container.class);
            startActivity(i);
        }
    });
    t4.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent i = new Intent(getActivity(), Social_Container.class);
            startActivity(i);

            /**
            //this code just for trial fragment
            FragmentTransaction fr = getFragmentManager().beginTransaction();
            fr.replace(R.id.fragment_container, new Fragment_Pengurusan());
            fr.commit();
            **/
        }
    });
    t5.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent i = new Intent(getActivity(), Social_Container.class);
            startActivity(i);

            /**
            FragmentTransaction fr = getFragmentManager().beginTransaction();
            fr.replace(R.id.fragment_container, new Fragment_Politic());
            fr.commit();
            **/
        }
    });
    t6.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent i = new Intent(getActivity(), Social_Container.class);
            startActivity(i);

            /**
            FragmentTransaction fr = getFragmentManager().beginTransaction();
            fr.replace(R.id.fragment_container, new Fragment_Industri());
            fr.commit();
            **/
        }
    });
    t7.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent i = new Intent(getActivity(), Social_Container.class);
            startActivity(i);

            /**
            FragmentTransaction fr = getFragmentManager().beginTransaction();
            fr.replace(R.id.fragment_container, new Fragment_Awam());
            fr.commit();
            **/
        }
    });

    return v;
  }
}

问题是，如何基于我在主活动内最后一个Fragment活动中附加的Textview上设置的CLick触发在第二类占位符（FrameLayout）上设置片段活动？< / p>

注意：我还没有在第二堂课中设置任何东西。我只是想知道如何从那里的TextView调用基于ClickListener的Second Class内部的片段。

如何在基于片段的Clicklistener的第二个活动中管理新的FrameLayout？

0 个答案: