ExamplesAdapter.java

package com.sromku.simple.fb.example;

import android.graphics.Color;
import android.text.Html;
import android.util.TypedValue;
import android.view.Gravity;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AbsListView.LayoutParams;
import android.widget.BaseAdapter;
import android.widget.TextView;

import com.sromku.simple.fb.example.utils.SharedObjects;

import java.util.HashSet;
import java.util.List;
import java.util.Set;

public class ExamplesAdapter extends BaseAdapter {

    private static final int TITLE_VIEW = 0;
    private static final int EXAMPLE_VIEW = 1;

    private final List<Example> mExamples;
    private final Set<Integer> mTitles;
    private boolean mLoggedIn;

    public ExamplesAdapter(List<Example> examples) {
        mExamples = examples;
        mTitles = new HashSet<Integer>();
        for (int position = 0; position < examples.size(); position++) {
            if (examples.get(position).getFragment() == null) {
                mTitles.add(position);
            }
        }
    }

    @Override
    public int getCount() {
        return mExamples.size();
    }

    @Override
    public Object getItem(int position) {
        return mExamples.get(position);
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    @Override
    public int getViewTypeCount() {
        return 2;
    }

    @Override
    public int getItemViewType(int position) {
        if (mTitles.contains(position)) {
            return TITLE_VIEW;
        }
        return EXAMPLE_VIEW;
    }

    @Override
    public boolean isEnabled(int position) {
        if (getItemViewType(position) == TITLE_VIEW) {
            return false;
        }
        if (!mLoggedIn && mExamples.get(position).isRequireLogin()) {
            return false;
        }
        return super.isEnabled(position);
    }

    @Override
    public View getView(int position, View view, ViewGroup group) {
        if (view == null) {
            TextView textView = new TextView(SharedObjects.context);
            textView.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, SharedObjects.context.getResources().getDimensionPixelSize(R.dimen.example_list_height)));
            textView.setTextColor(SharedObjects.context.getResources().getColor(R.color.black));
            textView.setSingleLine();
            if (getItemViewType(position) == EXAMPLE_VIEW) {
                textView.setTextSize(TypedValue.COMPLEX_UNIT_PX, SharedObjects.context.getResources().getDimensionPixelSize(R.dimen.example_list_text_size));
            } else {
                textView.setTextSize(TypedValue.COMPLEX_UNIT_PX, SharedObjects.context.getResources().getDimensionPixelSize(R.dimen.example_list_title_size));
            }
            textView.setGravity(Gravity.LEFT | Gravity.CENTER_VERTICAL);
            int pix10dp = SharedObjects.context.getResources().getDimensionPixelSize(R.dimen.padding_10dp);
            textView.setPadding(pix10dp, 0, pix10dp, 0);
            view = textView;
        }

        Example example = mExamples.get(position);
        TextView textView = (TextView) view;
        if (getItemViewType(position) == EXAMPLE_VIEW) {
            textView.setText(Html.fromHtml("  \u25B6  " + example.getTitle()));
        } else {
            textView.setText(Html.fromHtml(example.getTitle()));
        }
        if (mLoggedIn || (!mLoggedIn && !example.isRequireLogin())) {
            textView.setTextColor(Color.BLACK);
            textView.setEnabled(true);
        } else {
            textView.setTextColor(Color.GRAY);
            textView.setEnabled(false);
        }
        return view;
    }

    public void setLogged(boolean logged) {
        mLoggedIn = logged;
        notifyDataSetChanged();
    }

}