Android Open Source - JiangHomeStyle_Android_Phone Custom Scroll View

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License

The source code is released under:

Apache License

Java Source Code

package com.cidesign.jianghomestylephone.widget;
// ww  w.  j a v  a 2 s.c  o  m
import android.content.Context;
import android.util.AttributeSet;
import android.util.Log;
import android.view.GestureDetector;
import android.view.GestureDetector.SimpleOnGestureListener;
import android.view.animation.Animation;
import android.view.animation.TranslateAnimation;
import android.view.animation.Animation.AnimationListener;
import android.view.MotionEvent;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
import android.widget.ScrollView;

public class CustomScrollView extends ScrollView
{
  private static final String TAG = CustomScrollView.class.getSimpleName();

  private RelativeLayout landscapeAnimPanel;
  private RelativeLayout humanityAnimPanel;
  private RelativeLayout storyAnimPanel;
  private RelativeLayout communityAnimPanel;

  // ????????????
  private float xDistance, yDistance, xLast, yLast;

  private boolean landscapeIsAnimation = true;
  private boolean humanityIsAnimation = true;
  private boolean storyIsAnimation = true;
  private boolean communityIsAnimation = true;

  private int animHeight = 0;

  public void setLandscapeAnimPanel(RelativeLayout landscapeAnimPanel)
  {
    this.landscapeAnimPanel = landscapeAnimPanel;
  }

  public void setHumanityAnimPanel(RelativeLayout humanityAnimPanel)
  {
    this.humanityAnimPanel = humanityAnimPanel;
  }

  public void setStoryAnimPanel(RelativeLayout storyAnimPanel)
  {
    this.storyAnimPanel = storyAnimPanel;
  }

  public void setCommunityAnimPanel(RelativeLayout communityAnimPanel)
  {
    this.communityAnimPanel = communityAnimPanel;
  }

  public CustomScrollView(Context context, AttributeSet attrs)
  {
    super(context, attrs);
  }

  @Override
  public boolean onInterceptTouchEvent(MotionEvent ev)
  {
    switch (ev.getAction())
    {
    case MotionEvent.ACTION_DOWN:
      xDistance = yDistance = 0f;
      xLast = ev.getX();
      yLast = ev.getY();
      break;
    case MotionEvent.ACTION_MOVE:
      final float curX = ev.getX();
      final float curY = ev.getY();

      xDistance += Math.abs(curX - xLast);
      yDistance += Math.abs(curY - yLast);
      xLast = curX;
      yLast = curY;
      if (xDistance > yDistance)
      {
        return false;
      }
    }

    return super.onInterceptTouchEvent(ev);
  }

  @Override
  public boolean onTouchEvent(MotionEvent ev)
  {
    if (animHeight == 0)
    {
      animHeight = 100;
    }

    if (landscapeIsAnimation && landscapeAnimPanel != null && (this.getScrollY() + 800 >= landscapeAnimPanel.getY()))
    {
      landscapeIsAnimation = false;
      Animation animation = new TranslateAnimation(0, 0, 0, -animHeight);
      animation.setDuration(1000);
      animation.setAnimationListener(new UpPushAnimation(landscapeAnimPanel, animHeight));
      landscapeAnimPanel.startAnimation(animation);
    }

    if (humanityIsAnimation && humanityAnimPanel != null && (this.getScrollY() + 800 >= humanityAnimPanel.getY()))
    {
      humanityIsAnimation = false;
      Animation animation = new TranslateAnimation(0, 0, 0, -animHeight);
      animation.setDuration(1000);
      animation.setAnimationListener(new UpPushAnimation(humanityAnimPanel, animHeight));
      humanityAnimPanel.startAnimation(animation);
    }

    if (storyIsAnimation && storyAnimPanel != null && (this.getScrollY() + 800 >= storyAnimPanel.getY()))
    {
      storyIsAnimation = false;
      Animation animation = new TranslateAnimation(0, 0, 0, -animHeight);
      animation.setDuration(1000);
      animation.setAnimationListener(new UpPushAnimation(storyAnimPanel, animHeight));
      storyAnimPanel.startAnimation(animation);
    }

    if (communityIsAnimation && communityAnimPanel != null && (this.getScrollY() + 800 >= communityAnimPanel.getY()))
    {
      communityIsAnimation = false;
      Animation animation = new TranslateAnimation(0, 0, 0, -animHeight);
      animation.setDuration(1000);
      animation.setAnimationListener(new UpPushAnimation(communityAnimPanel, animHeight));
      communityAnimPanel.startAnimation(animation);
    }

    return super.onTouchEvent(ev);
  }

  class UpPushAnimation implements AnimationListener
  {
    private View view;
    private int animHeight;

    public UpPushAnimation(View view, int animHeight)
    {
      this.view = view;
      this.animHeight = animHeight;
    }

    @Override
    public void onAnimationEnd(Animation animation)
    {
      view.clearAnimation();
      LinearLayout.LayoutParams lp = (LinearLayout.LayoutParams) view.getLayoutParams();
      lp.setMargins(lp.leftMargin, lp.topMargin - animHeight, lp.rightMargin, lp.bottomMargin);
      view.setLayoutParams(lp);
    }

    @Override
    public void onAnimationRepeat(Animation animation)
    {
      // TODO Auto-generated method stub

    }

    @Override
    public void onAnimationStart(Animation animation)
    {
      // TODO Auto-generated method stub

    }

  }
}

Java Source Code List

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