带有Viewpager的任务管理器

Question

我有一个代码，可以使Viewpager制作一个任务管理器，该任务管理器将具有任务视图，日历以及添加或修改或删除任务，因此我具有该应用程序将显示的所有形式，但是我如何使该功能发挥作用一项任务，因为我尝试编写要添加的代码，但始终向我显示错误。在xml文件中，只有背景颜色和文本视图，欢迎一切，谢谢

        package info.androidhive.tabsswipe;

    import info.androidhive.tabsswipe.adapter.TabsPagerAdapter;
    import android.annotation.SuppressLint;
    import android.app.ActionBar;
    import android.app.ActionBar.Tab;
    import android.app.FragmentTransaction;
    import android.os.Bundle;
    import android.support.v4.app.FragmentActivity;
    import android.support.v4.view.ViewPager;

    @SuppressLint("NewApi") public class MainActivity extends FragmentActivity implements
            ActionBar.TabListener {

        private ViewPager viewPager;
        private TabsPagerAdapter mAdapter;
        private ActionBar actionBar;
        // Tab titles "Top Rated", "Games", "Movies"
        private String[] tabs = { "Tareas", "Calendario", "+" };

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

            // Initilization
            viewPager = (ViewPager) findViewById(R.id.pager);
            actionBar = getActionBar();
            mAdapter = new TabsPagerAdapter(getSupportFragmentManager());

            viewPager.setAdapter(mAdapter);
            actionBar.setHomeButtonEnabled(false);
            actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);        

            // Adding Tabs
            for (String tab_name : tabs) {
                actionBar.addTab(actionBar.newTab().setText(tab_name)
                        .setTabListener(this));
            }

            /**
             * on swiping the viewpager make respective tab selected
             * */
            viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {

                @Override
                public void onPageSelected(int position) {
                    // on changing the page
                    // make respected tab selected
                    actionBar.setSelectedNavigationItem(position);
                }

                @Override
                public void onPageScrolled(int arg0, float arg1, int arg2) {
                }

                @Override
                public void onPageScrollStateChanged(int arg0) {
                }
            });
        }

        @Override
        public void onTabReselected(Tab tab, FragmentTransaction ft) {
        }

        @Override
        public void onTabSelected(Tab tab, FragmentTransaction ft) {
            // on tab selected
            // show respected fragment view
            viewPager.setCurrentItem(tab.getPosition());
        }

        @Override
        public void onTabUnselected(Tab tab, FragmentTransaction ft) {
        }

    }
    ```
    package info.androidhive.tabsswipe;

    import info.androidhive.tabsswipe.R;
    import android.app.Activity;
    import android.content.ContentValues;
    import android.database.Cursor;
    import android.database.sqlite.SQLiteDatabase;
    import android.os.Bundle;
    import android.view.Menu;
    import android.view.View;
    import android.widget.EditText;
    import android.widget.Toast;
    import android.os.Bundle;
    import android.support.v4.app.Fragment;
    import android.view.LayoutInflater;
    import android.view.View;
    import android.view.ViewGroup;

    public class MoviesFragment extends Fragment {


        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container,
                Bundle savedInstanceState) {

            View rootView = inflater.inflate(R.layout.fragment_movies, container, false);


            return rootView;

        }
    }
    ```

    package info.androidhive.tabsswipe;

    import info.androidhive.tabsswipe.R;
    import android.os.Bundle;
    import android.support.v4.app.Fragment;
    import android.view.LayoutInflater;
    import android.view.View;
    import android.view.ViewGroup;

    public class TopRatedFragment extends Fragment {

        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container,
                Bundle savedInstanceState) {

            View rootView = inflater.inflate(R.layout.fragment_top_rated, container, false);

            return rootView;
        }
    }
    ```
    ```
    package info.androidhive.tabsswipe;

    import info.androidhive.tabsswipe.R;
    import android.os.Bundle;
    import android.support.v4.app.Fragment;
    import android.view.LayoutInflater;
    import android.view.View;
    import android.view.ViewGroup;

    public class GamesFragment extends Fragment {

        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container,
                Bundle savedInstanceState) {

            View rootView = inflater.inflate(R.layout.fragment_games, container, false);

            return rootView;
        }
    }