Android Open Source - Common-Library Auto Hide Menu Widget

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License

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

package com.morgan.library.widget;
//from  w ww  .  j  av a 2  s  .c om
import android.content.Context;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
import android.view.animation.AccelerateInterpolator;
import android.view.animation.Animation;
import android.view.animation.Animation.AnimationListener;
import android.view.animation.DecelerateInterpolator;
import android.view.animation.TranslateAnimation;
import android.widget.FrameLayout;
import android.widget.LinearLayout;

import com.morgan.library.R;
import com.morgan.library.widget.DirectionScrollView.OnScrollDirectionChangeListener;

/**
 * ?????????ScrollView?????????????????????????????widget?????????id?ScrollView?
 * {@link DirectionScrollView} ???id?menu_container?GroupView.
 * 
 * @author Morgan.Ji
 * 
 */
public class AutoHideMenuWidget extends FrameLayout {

  private DirectionScrollView mScrollView;
  private TranslateAnimation mShowAnimation, mHideAnimation;
  private boolean mMoving, mShowAfterHide;
  private LinearLayout mMenuContainer;
  private OnTouchListener mOnTouchListenerDegelate;

  public AutoHideMenuWidget(Context context, AttributeSet attrs) {
    super(context, attrs);
    initView();
    initAnimatition();
  }

  private void initView() {
    mScrollView = (DirectionScrollView) findViewById(R.id.scrollview);
    mMenuContainer = (LinearLayout) findViewById(R.id.menu_container);
    if (null == mScrollView || null == mMenuContainer) {
      throw new RuntimeException(
          "must include scrollview and menu_container in this view");
    }
    mScrollView.setOnTouchListener(mOnTouchListener);
    mScrollView
        .setOnScrollDirectionChangeListener(mScrollDirectionChangeListener);
  }

  private void initAnimatition() {
    mShowAnimation = new TranslateAnimation(Animation.RELATIVE_TO_SELF, 0,
        Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_SELF, 1,
        Animation.RELATIVE_TO_SELF, 0);
    mShowAnimation.setDuration(600);
    mShowAnimation.setInterpolator(new DecelerateInterpolator());
    mShowAnimation.setAnimationListener(new AnimationListener() {

      @Override
      public void onAnimationStart(Animation animation) {
        mMenuContainer.setVisibility(View.VISIBLE);
        mMoving = true;
        mShowAfterHide = false;
      }

      @Override
      public void onAnimationRepeat(Animation animation) {
      }

      @Override
      public void onAnimationEnd(Animation animation) {
        mMoving = false;
        mShowAfterHide = false;
      }
    });

    mHideAnimation = new TranslateAnimation(Animation.RELATIVE_TO_SELF, 0,
        Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_SELF, 0,
        Animation.RELATIVE_TO_SELF, 1);
    mHideAnimation.setDuration(400);
    mHideAnimation.setInterpolator(new AccelerateInterpolator(1.5f));
    mHideAnimation.setAnimationListener(new AnimationListener() {

      @Override
      public void onAnimationStart(Animation animation) {
        mMoving = true;
      }

      @Override
      public void onAnimationRepeat(Animation animation) {
      }

      @Override
      public void onAnimationEnd(Animation animation) {
        mMenuContainer.setVisibility(View.GONE);
        mMoving = false;
        if (mShowAfterHide) {
          toggleBottomBtn(true);
        }
      }
    });
  }

  private void toggleBottomBtn(boolean show) {
    if (mMoving) {
      if (show) {
        mShowAfterHide = true;
      }
      return;
    }
    if (show && !mMenuContainer.isShown()) {
      mMoving = true;
      mMenuContainer.postDelayed(new Runnable() {

        @Override
        public void run() {
          mMenuContainer.startAnimation(mShowAnimation);
        }
      }, 1000);
    } else if (!show && mMenuContainer.isShown()) {
      mMenuContainer.startAnimation(mHideAnimation);
    }
  }

  private OnTouchListener mOnTouchListener = new OnTouchListener() {

    @Override
    public boolean onTouch(View v, MotionEvent event) {
      boolean result = false;
      if (null != mOnTouchListenerDegelate) {
        result = mOnTouchListenerDegelate.onTouch(v, event);
      }
      switch (event.getAction()) {
      case MotionEvent.ACTION_DOWN:
        mScrollView.setRecord(true);
        break;
      case MotionEvent.ACTION_MOVE:
        break;
      case MotionEvent.ACTION_UP:
      case MotionEvent.ACTION_CANCEL:
        mScrollView.setRecord(false);
        toggleBottomBtn(true);
        break;
      default:
        break;
      }
      return result;
    }
  };

  private OnScrollDirectionChangeListener mScrollDirectionChangeListener = new OnScrollDirectionChangeListener() {

    @Override
    public void onDirectionChange(int direction) {
      switch (direction) {
      case DirectionScrollView.DIRECTION_DOWN:
        toggleBottomBtn(false);
        break;
      default:
        break;
      }
    }
  };

  public void setOnTouchListener(OnTouchListener mOnTouchListener) {
    this.mOnTouchListenerDegelate = mOnTouchListener;
  }
}
Java Source Code List
