Android Open Source - android_app Ray Menu

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License

The source code is released under:
Apache License
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Java Source Code

package com.capricorn;
//from w  w  w .  ja va  2 s . com
import android.content.Context;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.AlphaAnimation;
import android.view.animation.Animation;
import android.view.animation.AnimationSet;
import android.view.animation.DecelerateInterpolator;
import android.view.animation.RotateAnimation;
import android.view.animation.ScaleAnimation;
import android.view.animation.Animation.AnimationListener;
import android.widget.ImageView;
import android.widget.RelativeLayout;

public class RayMenu extends RelativeLayout {
  private RayLayout mRayLayout;

  private ImageView mHintView;

  public RayMenu(Context context) {
    super(context);
    init(context);
  }

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

  private void init(Context context) {
    setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));
    setClipChildren(false);

    LayoutInflater li = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    li.inflate(R.layout.ray_menu, this);

    mRayLayout = (RayLayout) findViewById(R.id.item_layout);

    final ViewGroup controlLayout = (ViewGroup) findViewById(R.id.control_layout);
    controlLayout.setClickable(true);
    controlLayout.setOnTouchListener(new OnTouchListener() {

      @Override
      public boolean onTouch(View v, MotionEvent event) {
        if (event.getAction() == MotionEvent.ACTION_DOWN) {
          mHintView.startAnimation(createHintSwitchAnimation(mRayLayout.isExpanded()));
          mRayLayout.switchState(true);
        }

        return false;
      }
    });

    mHintView = (ImageView) findViewById(R.id.control_hint);
  }

  public void addItem(View item, OnClickListener listener) {
    mRayLayout.addView(item);
    item.setOnClickListener(getItemClickListener(listener));
  }

  private OnClickListener getItemClickListener(final OnClickListener listener) {
    return new OnClickListener() {

      @Override
      public void onClick(final View viewClicked) {
        Animation animation = bindItemAnimation(viewClicked, true, 400);
        animation.setAnimationListener(new AnimationListener() {

          @Override
          public void onAnimationStart(Animation animation) {

          }

          @Override
          public void onAnimationRepeat(Animation animation) {

          }

          @Override
          public void onAnimationEnd(Animation animation) {
            postDelayed(new Runnable() {

              @Override
              public void run() {
                itemDidDisappear();
              }
            }, 0);
          }
        });

        final int itemCount = mRayLayout.getChildCount();
        for (int i = 0; i < itemCount; i++) {
          View item = mRayLayout.getChildAt(i);
          if (viewClicked != item) {
            bindItemAnimation(item, false, 300);
          }
        }

        mRayLayout.invalidate();
        mHintView.startAnimation(createHintSwitchAnimation(true));

        if (listener != null) {
          listener.onClick(viewClicked);
        }
      }
    };
  }

  private Animation bindItemAnimation(final View child, final boolean isClicked, final long duration) {
    Animation animation = createItemDisapperAnimation(duration, isClicked);
    child.setAnimation(animation);

    return animation;
  }

  private void itemDidDisappear() {
    final int itemCount = mRayLayout.getChildCount();
    for (int i = 0; i < itemCount; i++) {
      View item = mRayLayout.getChildAt(i);
      item.clearAnimation();
    }

    mRayLayout.switchState(false);
  }

  private static Animation createItemDisapperAnimation(final long duration, final boolean isClicked) {
    AnimationSet animationSet = new AnimationSet(true);
    animationSet.addAnimation(new ScaleAnimation(1.0f, isClicked ? 2.0f : 0.0f, 1.0f, isClicked ? 2.0f : 0.0f,
        Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f));
    animationSet.addAnimation(new AlphaAnimation(1.0f, 0.0f));

    animationSet.setDuration(duration);
    animationSet.setInterpolator(new DecelerateInterpolator());
    animationSet.setFillAfter(true);

    return animationSet;
  }

  private static Animation createHintSwitchAnimation(final boolean expanded) {
    Animation animation = new RotateAnimation(expanded ? 45 : 0, expanded ? 0 : 45, Animation.RELATIVE_TO_SELF,
        0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
    animation.setStartOffset(0);
    animation.setDuration(100);
    animation.setInterpolator(new DecelerateInterpolator());
    animation.setFillAfter(true);

    return animation;
  }

}
Java Source Code List
