android.support.v4.app.FragmentTransaction 无法转换为片段管理器

Question

我正在尝试navigation drawer在我的应用程序中创建。在我的一个navigation drawer item，View我希望它有2个tabs与swipe view功能。我可以单独创建它们，但是当我尝试在 1 中执行时，出现错误。

MainActivity // 用于导航抽屉项

import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;

private void selectItem(int position) {

        Fragment fragment = null;

        switch (position) {
            case 0:
                fragment=new Information();
                break;
            case 1:

                fragment=new Claims1();
                Bundle bundle=new Bundle();
                bundle.putLong("ab",WorkDetailsTable.ab);
                fragment.setArguments(bundle);
                break;

            case 2:
                fragment=new ViewView();
                break;

            default:
                break;
        }

        if (fragment != null) {
            FragmentManager fragmentManager = getFragmentManager();
            fragmentManager.beginTransaction().replace(R.id.content_frame, fragment).commit(); 

            mDrawerList.setItemChecked(position, true);
            mDrawerList.setSelection(position);
            setTitle(mNavigationDrawerItemTitles[position]);
            mDrawerLayout.closeDrawer(mDrawerList);

        } else {
            Log.e("MainActivity", "Error in creating fragment");
        }
    }
}

信息

import android.app.DatePickerDialog;
import android.app.Dialog;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentTransaction;

      public void onClick(View arg0) {
            FragmentTransaction ft = getFragmentManager().beginTransaction(); 
            dialog.show(ft, "DatePicker"); //cannot resolve method show

        }

      public static class DateDialog extends android.app.DialogFragment implements DatePickerDialog.OnDateSetListener {
            //  EditText txtdate;
            T t;


            public DateDialog() {

            }



            public Dialog onCreateDialog(Bundle savedInstanceState)
            {

                final Calendar c=Calendar.getInstance();
                int year=c.get(Calendar.YEAR);
                int month=c.get(Calendar.MONTH);
                int day=c.get(Calendar.DAY_OF_MONTH);
                return new DatePickerDialog(getActivity(),this,year,month,day);
            }

            public void onDateSet(DatePicker view,int year, int month, int day)
            {
                String date=day+"-"+(month+1)+"-"+year;
                txtDate.setText(date);
                date1= txtDate.getText().toString();
                return ;
                //t.add(date);


            }
        }

视图视图

import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.view.ViewPager;

public class ViewView extends Fragment implements ActionBar.TabListener { // must either be declared abstract or...

    private ViewPager viewPager;
    private TabsFragmentPagerAdapter mAdapter;
    private ActionBar actionBar;
    private String[] tabs = {"Information", "receipt"}; // This are the two tabs in view item

  public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        View View1 = inflater.inflate(R.layout.viewview1, container, false);
        listView = (ListView) View1.findViewById(R.id.listView1);
        viewPager = (ViewPager) View1.findViewById(R.id.pager);
        mAdapter = new TabsFragmentPagerAdapter(getActivity().getSupportFragmentManager()); 
        viewPager.setAdapter(mAdapter);
        actionBar = getActivity().getActionBar();
        actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
        for (int i = 0; i < 2; i++) {
            actionBar.addTab(actionBar.newTab().setText(tabs[i]).setTabListener(this));
        }
        viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {

            @Override
            public void onPageSelected(int arg) {
                // TODO Auto-generated method stub
                actionBar.setSelectedNavigationItem(arg);
            }

            @Override
            public void onPageScrolled(int arg0, float arg1, int arg2) {
                // TODO Auto-generated method stub

            }

            @Override
            public void onPageScrollStateChanged(int arg0) {
                // TODO Auto-generated method stub

            }
        });

        BuildList();
        return View1;
    }

TabsFragmentPagerAdapter

import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;

public class TabsFragmentPagerAdapter extends FragmentPagerAdapter {

    public TabsFragmentPagerAdapter(FragmentManager fm) {
        super(fm);
        // TODO Auto-generated constructor stub
    }

    @Override
    public Fragment getItem(int index) {
        // TODO Auto-generated method stub

        switch(index) {
            case 0:
                return new UpdatePage2();
            case 1:
                return new Receipt();

        }
        return null;
    }

    @Override
    public int getCount() {
        // TODO Auto-generated method stub
        return 2;
    }

}

错误

错误：(85, 15) 错误：找不到适合 show(android.support.v4.app.FragmentTransaction,String) 方法的方法 DialogFragment.show(FragmentManager,String) 不适用（参数不匹配；android.support.v4. app.FragmentTransaction 不能转换为 FragmentManager) 方法 DialogFragment.show(android.app.FragmentTransaction,String) 不适用（参数不匹配；android.support.v4.app.FragmentTransaction 不能转换为 android.app.FragmentTransaction）

错误：(28, 9) 错误：ViewView 不是抽象的，并且不会覆盖 TabListener 中的抽象方法 onTabReselected(Tab,FragmentTransaction)

Answer 1

您收到此错误是因为您的MainActivity和ViewView活动正在使用

import android.app.Fragment;
import android.app.FragmentManager;

您的TabsFragmentPagerAdapter正在使用的地方

import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;

在您的所有活动中使用其中任何一种。