Android Open Source - opentraining Exercise Type List Adapter

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License

The source code is released under:

GNU General Public License

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Java Source Code

/**
 * /* ww w.ja  v  a 2s .  c  o  m*/
 * This is OpenTraining, an Android application for planning your your fitness training.
 * Copyright (C) 2012-2014 Christian Skubich
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * 
 */

package de.skubware.opentraining.activity.create_workout;

import java.util.ArrayList;
import java.util.List;

import de.skubware.opentraining.basic.ExerciseType;
import de.skubware.opentraining.basic.FitnessExercise;
import de.skubware.opentraining.basic.Workout;
import android.app.Activity;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;

/**
 * An ArrayAdapter used in {@link ExerciseTypeListFragment}. Had to use a custom
 * adapter to be able to disable certain items of the ListView (exercises that
 * already have been added to the Workout should be disabled, so that the user
 * can see which exercises have been selected).
 * 
 */
public class ExerciseTypeListAdapter extends ArrayAdapter<ExerciseType>{
  private Workout mWorkout;
  private List<ExerciseType> mExercisesInWorkoutList = new ArrayList<ExerciseType>();
  
  public ExerciseTypeListAdapter(Activity context, int resource, int textViewResourceId,
      List<ExerciseType> exerciseList) {
    super(context, resource, textViewResourceId, exerciseList);
    updateWorkout();
  }
  
  @Override
  public View getView(int position, View convertView, ViewGroup parent) {
    View v = super.getView(position, convertView, parent);
    // the view has to be disabled too
    // just disabling the item is not enough
    v.setEnabled(isEnabled(position));
    return v;
  }

  @Override
  public boolean areAllItemsEnabled() {
    // this is a workaround; otherwise
    // Android will not draw the divider lines for disabled items
    return true;
  }

  
  
  @Override
  public boolean isEnabled(int position) {
    // return false, if already added to workout
    if(mExercisesInWorkoutList.contains(getItem(position)))
      return false;
    return true;  
  }

  
  public void updateWorkout() {
    mWorkout = ((ExerciseTypeListActivity) getContext()).getWorkout();
    
    mExercisesInWorkoutList = new ArrayList<ExerciseType>();
    
    if(mWorkout != null){
      for(FitnessExercise fEx: mWorkout.getFitnessExercises()){
        mExercisesInWorkoutList.add(fEx.getExType());
      }
    }
  }
  
  @Override
  public void notifyDataSetChanged(){
    updateWorkout();
    super.notifyDataSetChanged();
  }
  

}

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