Android Open Source - android.bigredsnapshot Slide Activity

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From Project

Back to project page android.bigredsnapshot.

License

The source code is released under:

MIT License

Java Source Code

package io.evercam.bigredsnapshot;
//from w w  w .ja  v  a  2  s. c  o m
import io.evercam.bigredsnapshot.helper.PropertyReader;

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

import com.bugsense.trace.BugSenseHandler;

import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.OnPageChangeListener;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup.LayoutParams;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;

public class SlideActivity extends Activity implements OnPageChangeListener
{
  private SharedPreferences sharedPrefs;
  private PropertyReader propertyReader;

  private ViewPager viewPager;
  private ViewPagerAdapter viewPagerAdapter;

  private List<View> views;
  private ImageView[] dots;
  private static final int[] pics = { R.drawable.snapshot_intro, R.drawable.snapshot_one,
      R.drawable.snapshot_next };
  private int currentIndex;

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

    sharedPrefs = PreferenceManager.getDefaultSharedPreferences(SlideActivity.this);

    propertyReader = new PropertyReader(getApplicationContext());
    // Bug Sense
    if (propertyReader.isPropertyExist(PropertyReader.KEY_BUG_SENSE))
    {
      String bugSenseCode = propertyReader.getPropertyStr(PropertyReader.KEY_BUG_SENSE);
      BugSenseHandler.initAndStartSession(SlideActivity.this, bugSenseCode);
    }

    if (LoginActivity.isUserLogged(sharedPrefs))
    {
      Intent intentMain = new Intent();
      intentMain.setClass(SlideActivity.this, LoginActivity.class);
      startActivity(intentMain);
    }
    else
    {
      BigRedSnapshot.sendScreenAnalytics(this, getString(R.string.screen_welcome_slides));
      initSlideView();
      initDots();
      initLinks();
    }
  }

  @Override
  protected void onStart()
  {
    super.onStart();

    if (propertyReader.isPropertyExist(PropertyReader.KEY_BUG_SENSE))
    {
      BugSenseHandler.startSession(this);
    }
  }

  @Override
  protected void onStop()
  {
    super.onStop();

    if (propertyReader.isPropertyExist(PropertyReader.KEY_BUG_SENSE))
    {
      BugSenseHandler.closeSession(this);
    }
  }

  private void initSlideView()
  {
    views = new ArrayList<View>();
    LinearLayout.LayoutParams mParams = new LinearLayout.LayoutParams(
        LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);

    for (int index = 0; index < pics.length; index++)
    {
      ImageView imageView = new ImageView(this);
      imageView.setLayoutParams(mParams);
      imageView.setImageResource(pics[index]);
      views.add(imageView);
    }
    viewPager = (ViewPager) findViewById(R.id.page);

    viewPagerAdapter = new ViewPagerAdapter(views);
    viewPager.setAdapter(viewPagerAdapter);

    viewPager.setOnPageChangeListener(this);
  }

  private void initLinks()
  {
    TextView loginTextView = (TextView) findViewById(R.id.text_login);
    TextView signUpTextView = (TextView) findViewById(R.id.text_signup);
    loginTextView.setOnClickListener(new OnClickListener(){

      @Override
      public void onClick(View v)
      {
        Intent login = new Intent();
        login.setClass(SlideActivity.this, LoginActivity.class);
        startActivity(login);
      }
    });

    signUpTextView.setOnClickListener(new OnClickListener(){

      @Override
      public void onClick(View v)
      {
        Intent signup = new Intent();
        signup.setClass(SlideActivity.this, SignUpActivity.class);
        startActivity(signup);
      }
    });
  }

  private void initDots()
  {
    LinearLayout dotLayout = (LinearLayout) findViewById(R.id.dot_layout);
    dots = new ImageView[pics.length];

    for (int index = 0; index < pics.length; index++)
    {
      dots[index] = (ImageView) dotLayout.getChildAt(index);
      dots[index].setEnabled(true);
      dots[index].setOnClickListener(new OnClickListener(){

        @Override
        public void onClick(View view)
        {
          int position = (Integer) view.getTag();
          setCurrentView(position);
          setCurrentDot(position);
        }

      });
      dots[index].setTag(index);
    }
    currentIndex = 0;
    dots[currentIndex].setEnabled(false);
  }

  private void setCurrentView(int position)
  {
    if (position < 0 || position >= pics.length)
    {
      return;
    }
    viewPager.setCurrentItem(position);
  }

  private void setCurrentDot(int positon)
  {
    if (positon < 0 || positon > pics.length - 1 || currentIndex == positon)
    {
      return;
    }
    dots[positon].setEnabled(false);
    dots[currentIndex].setEnabled(true);
    currentIndex = positon;
  }

  @Override
  public void onBackPressed()
  {
    // Not allowed to go back.
  }

  @Override
  public void onPageScrollStateChanged(int arg0)
  {
  }

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

  @Override
  public void onPageSelected(int position)
  {
    setCurrentDot(position);
  }

  private class ViewPagerAdapter extends PagerAdapter
  {
    private List<View> views;

    public ViewPagerAdapter(List<View> views)
    {
      this.views = views;
    }

    @Override
    public void destroyItem(View view, int position, Object arg2)
    {
      ((ViewPager) view).removeView(views.get(position));
    }

    @Override
    public int getCount()
    {
      if (views != null)
      {
        return views.size();
      }
      return 0;
    }

    @Override
    public Object instantiateItem(View view, int position)
    {
      ((ViewPager) view).addView(views.get(position), 0);
      return views.get(position);
    }

    @Override
    public boolean isViewFromObject(View view, Object object)
    {
      return (view == object);
    }
  }
}

Java Source Code List

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