Android Open Source - DynamicListView Dynamic List View

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License

The source code is released under:

Apache License

Java Source Code

package com.example.dynamiclistview;
//from w  w  w  .jav a 2  s .c o  m
import android.content.Context;
import android.util.AttributeSet;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ImageButton;
import android.widget.LinearLayout;
import android.widget.ListView;

public class DynamicListView extends ListView implements OnTouchListener,
    android.widget.AdapterView.OnItemLongClickListener {

  private OnClickButtonListener mListener;
  private boolean mExtraItemShown;

  private ViewGroup mItemLayout;
  // The origin item in listview.
  private View mMainItem;
  // The item which will be replace the main item.
  private ViewGroup mExtraItem;
  // The listener of extraItem's button.
  private OnClickListener innerOnClickListener = new OnClickListener() {

    @Override
    public void onClick(View v) {
      restoreMainItem();

      ViewGroup parent = (ViewGroup) v.getParent();
      int index = parent.indexOfChild(v);
      mListener.onClickButton(index);
    }
  };

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

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

  public void setOnClickButtonListener(OnClickButtonListener l) {
    mListener = l;
  }

  @Override
  public boolean onTouch(View v, MotionEvent event) {
    if (mExtraItemShown && event.getAction() != MotionEvent.ACTION_UP) {
      restoreMainItem();
    }

    return false;
  }

  @Override
  public boolean onItemLongClick(AdapterView<?> parent, View view,
      int position, long id) {
    if (!mExtraItemShown) {
      mItemLayout = (ViewGroup) getChildAt(position
          - getFirstVisiblePosition());

      mExtraItem = (ViewGroup) LayoutInflater.from(getContext()).inflate(
          R.layout.extra_item, null);
      Animation inAnimation = AnimationUtils.loadAnimation(getContext(),
          R.anim.push_left_in);
      mExtraItem.startAnimation(inAnimation);
      setButtonsListener(mExtraItem);

      LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
          LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
      mItemLayout.addView(mExtraItem, params);

      Animation outAnimation = AnimationUtils.loadAnimation(getContext(),
          R.anim.push_left_out);
      mMainItem = mItemLayout.getChildAt(0);
      mMainItem.startAnimation(outAnimation);
      mMainItem.setVisibility(View.INVISIBLE);

      mExtraItemShown = true;
    }
    return true;
  }

  /**
   * @author sampythoner
   * 
   *         The caller can implements this interface, which will deliver the
   *         button's index to the caller.
   * 
   */
  public interface OnClickButtonListener {
    void onClickButton(int index);
  }

  private void init() {
    setOnTouchListener(this);
    setOnItemLongClickListener(this);
  }

  private void setButtonsListener(ViewGroup extraItem) {
    ImageButton searchButton = (ImageButton) mExtraItem
        .findViewById(R.id.imageButton1);
    searchButton.setOnClickListener(innerOnClickListener);
    ImageButton editButton = (ImageButton) mExtraItem
        .findViewById(R.id.imageButton2);
    editButton.setOnClickListener(innerOnClickListener);
    ImageButton shareButton = (ImageButton) mExtraItem
        .findViewById(R.id.imageButton3);
    shareButton.setOnClickListener(innerOnClickListener);
    ImageButton sortButton = (ImageButton) mExtraItem
        .findViewById(R.id.imageButton4);
    sortButton.setOnClickListener(innerOnClickListener);
    ImageButton helpButton = (ImageButton) mExtraItem
        .findViewById(R.id.imageButton5);
    helpButton.setOnClickListener(innerOnClickListener);
  }

  /**
   * Clear extra item ,recover main item.
   */
  private void restoreMainItem() {
    Animation outAnimation = AnimationUtils.loadAnimation(getContext(),
        R.anim.push_left_out);
    mExtraItem.startAnimation(outAnimation);
    mItemLayout.removeView(mExtraItem);
    mExtraItem = null;
    mExtraItemShown = false;

    Animation inAnimation = AnimationUtils.loadAnimation(getContext(),
        R.anim.push_left_in);
    mMainItem = mItemLayout.getChildAt(0);
    mMainItem.startAnimation(inAnimation);
    mMainItem.setVisibility(View.VISIBLE);
  }

}

Java Source Code List

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