Android Open Source - EBrowser Quick Action Grid

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License

The source code is released under:

GNU General Public License

Java Source Code

/*
 * Copyright (C) 2010 Cyril Mottier (http://www.cyrilmottier.com)
 *//from  w ww . j  a v a  2s . c  o  m
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.greendroid;

import java.util.List;

import com.mrpej.ebrowser.R;

import android.content.Context;
import android.graphics.Rect;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.MeasureSpec;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.TextView;

/**
 * A {@link QuickActionGrid} is an implementation of a {@link QuickActionWidget}
 * that displays {@link QuickAction}s in a grid manner. This is usually used to create
 * a shortcut to jump between different type of information on screen.
 *
 * @author Benjamin Fellous
 * @author Cyril Mottier
 */
public class QuickActionGrid extends QuickActionWidget {

  private GridView mGridView;

  public QuickActionGrid(Context context) {
    super(context);

    setContentView(R.layout.gd_quick_action_grid);

    final View v = getContentView();
    mGridView = (GridView) v.findViewById(R.id.gdi_grid);
  }

  @Override
  protected void populateQuickActions(final List<QuickAction> quickActions) {

    mGridView.setAdapter(new BaseAdapter() {

      public View getView(int position, View view, ViewGroup parent) {

        TextView textView = (TextView) view;

        if (view == null) {
          final LayoutInflater inflater = LayoutInflater.from(getContext());
          textView = (TextView) inflater.inflate(R.layout.gd_quick_action_grid_item, mGridView, false);
        }

        QuickAction quickAction = quickActions.get(position);
        textView.setText(quickAction.mTitle);
        textView.setCompoundDrawablesWithIntrinsicBounds(null, quickAction.mDrawable, null, null);

        return textView;

      }

      public long getItemId(int position) {
        return position;
      }

      public Object getItem(int position) {
        return null;
      }

      public int getCount() {
        return quickActions.size();
      }
    });

    mGridView.setOnItemClickListener(mInternalItemClickListener);
  }

  @Override
  protected void onMeasureAndLayout(Rect anchorRect, View contentView) {

    contentView.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
    contentView.measure(MeasureSpec.makeMeasureSpec(getScreenWidth(), MeasureSpec.EXACTLY),
        LayoutParams.WRAP_CONTENT);

    int rootHeight = contentView.getMeasuredHeight();

    int offsetY = getArrowOffsetY();
    int dyTop = anchorRect.top;
    int dyBottom = getScreenHeight() - anchorRect.bottom;

    boolean onTop = (dyTop > dyBottom);
    int popupY = (onTop) ? anchorRect.top - rootHeight + offsetY : anchorRect.bottom - offsetY;

    setWidgetSpecs(popupY, onTop);
  }

  private OnItemClickListener mInternalItemClickListener = new OnItemClickListener() {
    public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
      getOnQuickActionClickListener().onQuickActionClicked(QuickActionGrid.this, position);
      if (getDismissOnClick()) {
        dismiss();
      }
    }
  };

}

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