Android Open Source - face_rec_android Help Activity

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License

The source code is released under:

GNU General Public License

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Java Source Code

package in.amolgupta.helpingfaceless.activities;
//from   www  . ja v  a2s.  c  om
import in.amolgupta.helpingfaceless.R;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentStatePagerAdapter;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.ActionBarActivity;

public class HelpActivity extends FragmentActivity {

  public static final int NUM_PAGES = 5;
  private ViewPager mPager;
  private PagerAdapter mPagerAdapter;

  @Override
  protected void onCreate(Bundle arg0) {

    setContentView(R.layout.fragment_help);
    super.onCreate(arg0);
    mPager = (ViewPager) findViewById(R.id.pager);
    mPagerAdapter = new ScreenSlidePagerAdapter(getSupportFragmentManager());
    mPager.setAdapter(mPagerAdapter);
  }

  @Override
  public void onBackPressed() {
    if (mPager.getCurrentItem() == 0) {
      // If the user is currently looking at the first step, allow the
      // system to handle the
      // Back button. This calls finish() on this activity and pops the
      // back stack.
      super.onBackPressed();
    } else {
      // Otherwise, select the previous step.
      mPager.setCurrentItem(mPager.getCurrentItem() - 1);
    }
  }

  /**
   * A simple pager adapter that represents 5 ScreenSlidePageFragment objects,
   * in sequence.
   */
  private class ScreenSlidePagerAdapter extends FragmentStatePagerAdapter {
    public ScreenSlidePagerAdapter(FragmentManager fm) {
      super(fm);
    }

    @Override
    public Fragment getItem(int position) {
      return new HelpItemFragment(position);
    }

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

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