Android Open Source - journal Monthly Expenses Pager Adapter

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The source code is released under:

MIT License

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Java Source Code

package cochrane343.journal;
/*  w w w.j av  a2s  .  co m*/
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentStatePagerAdapter;

/**
 * The {@link FragmentStatePagerAdapter} used to page through the {@link MonthlyExpensesFragment MonthlyExpensesFragments}
 * displaying the expenses of the different months.
 * 
 * @author cochrane343
 * @version 1.0
 */
public class MonthlyExpensesPagerAdapter extends FragmentStatePagerAdapter {    
    /**
     * The offset to account for the ongoing month
     */
    private final static int CURRENT_MONTH_OFFSET = 1;
    
    public MonthlyExpensesPagerAdapter(final FragmentManager fragmentManager) {
        super(fragmentManager);
    }

    /**
     * @param monthsSinceEpoch the number of months elapsed since the Java epoch, determining the month
     * displayed by the fragment at the specified position
     * @return the fragment associated with the specified position 
     */
    @Override
    public MonthlyExpensesFragment getItem(final int monthsSinceEpoch) {
        return MonthlyExpensesFragment.newInstance(monthsSinceEpoch);
    }
    
    /**
     * @return the number of views available, i.e. the number of months elapsed since the Java epoch
     * plus one
     */
    @Override
    public final int getCount() {
        return DateTimeHelper.getMonthsSinceEpoch() + CURRENT_MONTH_OFFSET;
    }
}

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