FeedSelectSettingsActivity.java

package in.sahildave.gazetti.preference;

import android.graphics.drawable.ColorDrawable;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.view.MenuItem;
import in.sahildave.gazetti.R;
import in.sahildave.gazetti.util.NewsCatFileUtil;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

public class FeedSelectSettingsActivity extends AppCompatActivity implements FeedSelectFragment.FeedSelectCallback {

    private static final String TAG = "FEED";

    private static final int NUM_ITEMS = 1;
    private boolean backFlag = false;

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

        List<Fragment> fragmentList = new ArrayList<Fragment>();
        fragmentList.add(FeedSelectFragment.create(0));

        // Instantiate a ViewPager and a PagerAdapter.
        ViewPager mPager = (ViewPager) findViewById(R.id.feedSelectPager);
        PagerAdapter mPagerAdapter = new ScreenSlidePagerAdapter(getSupportFragmentManager(), fragmentList);
        mPager.setAdapter(mPagerAdapter);

        int ActionBarColorId = getIntent().getIntExtra("ActionBarColor", -1);

        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        if (ActionBarColorId != -1) {
            getSupportActionBar().setDisplayShowTitleEnabled(false);
            getSupportActionBar().setBackgroundDrawable(new ColorDrawable(ActionBarColorId));
            getSupportActionBar().setDisplayShowTitleEnabled(true);
        } else {
            getSupportActionBar().setDisplayShowTitleEnabled(false);
            getSupportActionBar().setBackgroundDrawable(
                    new ColorDrawable(getResources().getColor(R.color.actionbar_default_color)));
            getSupportActionBar().setDisplayShowTitleEnabled(true);
        }

        getSupportActionBar().setTitle("Select Feeds");
    }

    @Override
    public void fsFragBackButton() {
        onBackPressed();
    }

    @Override
    public void fsFragDoneButton(Map<String, Object> mChildCheckStates) {
        backFlag = true;
        onBackPressed();

        NewsCatFileUtil.getInstance(this).setUserPrefChanged(true);
        NewsCatFileUtil.getInstance(this).saveUserSelectionToJsonFile(mChildCheckStates);

    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        int id = item.getItemId();
        if (id == android.R.id.home) {
            onBackPressed();
            return true;
        }
        return super.onOptionsItemSelected(item);
    }

    private class ScreenSlidePagerAdapter extends FragmentPagerAdapter {

        private List<Fragment> fragmentList;

        public ScreenSlidePagerAdapter(FragmentManager fm, List<Fragment> fragmentList) {
            super(fm);
            this.fragmentList = fragmentList;
        }

        @Override
        public Fragment getItem(int position) {

            return fragmentList.get(position);
        }

        @Override
        public int getCount() {
            return NUM_ITEMS;
        }
    }

}