Android Open Source - ImproveMyCity-Mobile Spinner Adapter_ New Issue Categ

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License

The source code is released under:

GNU General Public License

Java Source Code

// NewIssueCateg_SpinnerAdapter  
package com.mk4droid.IMC_Core;
//  w  w w .  ja  va  2s.c  om
import java.util.ArrayList;

import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Color;
import android.graphics.drawable.BitmapDrawable;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.widget.ArrayAdapter;
import android.widget.CheckedTextView;
import android.widget.ImageView;
import android.widget.RelativeLayout;

import com.mk4droid.IMC_Activities.Fragment_NewIssueA;
import com.mk4droid.IMC_Constructors.Category;
import com.mk4droid.IMCity_PackDemo.R;


/**
 * This is the adapter for the spinner in Activity_NewIssueA. Custom spinner with 
 * category icon and text dynamically retrieved from the SQLite.
 * 
 * @author Dimitrios Ververidis, Dr.
 *         Post-doctoral Researcher, 
 *         Information Technologies Institute, ITI-CERTH,
 *         Thermi, Thessaloniki, Greece      
 *         ververid@iti.gr,  
 *         http://mklab.iti.gr
 *
 */
public class SpinnerAdapter_NewIssueCateg extends ArrayAdapter<Category>{

  private Activity context;
  ArrayList<Category> data = null;
  final float dens;
  int NCategs = 0;
  Bitmap[] bmicons;
  CheckedTextView cat_rb;
  
  /** Constructor. Get density of the screen to scale icons of categories */
  public SpinnerAdapter_NewIssueCateg(Activity context, int resource, ArrayList<Category> data)
  {
    super(context, resource, data);
    
    this.context = context;
    this.data = data;

    dens = getContext().getResources().getDisplayMetrics().density;

    NCategs = data.size();
    bmicons = new Bitmap[NCategs];

    for (int i=0; i < NCategs; i++){
      Category item = data.get(i);
      bmicons[i] = BitmapFactory.decodeByteArray(item._icon, 0, item._icon.length);
      float scfact = 1;
      if (item._level == 1)
        scfact = 1.3f;

      int sc_image = (int)( 30*scfact );
      bmicons[i] = Bitmap.createScaledBitmap(bmicons[i], (int) (sc_image * dens + 0.5f), (int) (sc_image * dens *1.17f + 0.5f), true);
    }

  }
    

    /**
     *    Get current visible item. Usually this is called only when the spinner is created.
     */
  @Override
  public View getView(int position, View convertView, ViewGroup parent){ 
    
    View row;

    LayoutInflater inflater = context.getLayoutInflater();
    row = inflater.inflate(R.layout.spinner_categ_item, parent, false);

    if (parent.getChildCount() > 0 || Fragment_NewIssueA.spPosition != -1) { 
      
      Category item = data.get(position);

      // Parse the data from each object and set it.
      if(item != null){
        
        ImageView cat_imv   = (ImageView) row.findViewById(R.id.categIcon);
        CheckedTextView cat_tv = (CheckedTextView) row.findViewById(R.id.categName);

        if(cat_imv != null){
          Bitmap bmicon = BitmapFactory.decodeByteArray(item._icon, 0, item._icon.length);

          if (item._level == 2)
            bmicon = Bitmap.createScaledBitmap(bmicon, (int) (45 * dens + 0.5f), (int) (50 * dens + 0.5f), true);
          else 
            bmicon = Bitmap.createScaledBitmap(bmicon, (int) (50 * dens + 0.5f), (int) (55 * dens + 0.5f), true);

          cat_tv.setCompoundDrawablesWithIntrinsicBounds(new BitmapDrawable(bmicon), null, null, null);
          cat_tv.setCompoundDrawablePadding(20);
        } 
        
        if(cat_tv != null){
          cat_tv.setText(item._name);
          cat_tv.setTextSize(15);
        } 
      } 
      
        } else { // Before appearance of the Spinner
          ((CheckedTextView)row.findViewById(R.id.categName)).setCompoundDrawablesWithIntrinsicBounds(null, null, null, null);
        }
    
    return row;
  }

  
    /**
     * This view starts when the spinner is clicked.  
     */
  @Override
  public View getDropDownView(int position, View convertView, ViewGroup parent){ 
    
    Category item = data.get(position);
    
    RelativeLayout rl;
    
    
    if(convertView == null ){
          LayoutInflater inflater = context.getLayoutInflater();
      convertView = inflater.inflate(R.layout.spinner_categ_item, parent, false);
      rl = (RelativeLayout) convertView.findViewById(R.id.rlcategitem);
    } else {
      rl = (RelativeLayout) convertView.findViewById(R.id.rlcategitem);
      View v = rl.findViewWithTag("hlbottom");
      View v2 = rl.findViewWithTag("hltop");

      if (v!=null)
        rl.removeView(v);

      if (v2!=null)
        rl.removeView(v2);
    }


    // Parse the data from each object and set it.
    if(item != null){ 
      ImageView cat_imv   = (ImageView) convertView.findViewById(R.id.categIcon);

      float scfact = 1;

      if (item._level == 1){
        scfact = 1.3f;

        rl.setBackgroundColor(Color.argb(255, 230, 230, 230));
        cat_imv.setPadding(10, 0, 0, 0);

        //------ horizontal line bottom ------
        if (position != NCategs){ // except last row
          View hlineView = new View(context);
          RelativeLayout.LayoutParams rlparams = new RelativeLayout.LayoutParams(LayoutParams.FILL_PARENT, 1);

          rlparams.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM, -1);
          rlparams.addRule(RelativeLayout.ALIGN_PARENT_LEFT, -1);

          hlineView.setTag("hlbottom");
          hlineView.setLayoutParams(rlparams);
          hlineView.setBackgroundColor(Color.BLACK);

          rl.addView(hlineView);
        }

        //------ horizontal line top ------
        if (position != 0){  // except first row
          View hlineView2 = new View(context);
          RelativeLayout.LayoutParams rlparams2 = new RelativeLayout.LayoutParams(LayoutParams.FILL_PARENT, 1);

          rlparams2.addRule(RelativeLayout.ALIGN_PARENT_TOP, -1);
          rlparams2.addRule(RelativeLayout.ALIGN_PARENT_LEFT, -1);

          hlineView2.setTag("hltop");
          hlineView2.setLayoutParams(rlparams2);
          hlineView2.setBackgroundColor(Color.BLACK);

          rl.addView(hlineView2);
        }
        //-----------------------------------
      }else{
        scfact = 1f;
        cat_imv.setPadding(30, 0, 0, 0);
        rl.setBackgroundColor(Color.WHITE);
      }

      cat_rb     = (CheckedTextView)  convertView.findViewById(R.id.categName);
    
      // icon 
      if(cat_imv != null){
        cat_imv.setImageBitmap(bmicons[position]);
        
        if (Fragment_NewIssueA.spPosition != -1){
          if ( data.get(Fragment_NewIssueA.spPosition)._id == data.get(position)._id )
            cat_rb.setChecked(true);
          else 
            cat_rb.setChecked(false);
        }
      }
      
      // text size
      if(cat_rb != null){
        cat_rb.setText(item._name);
        cat_rb.setTextSize(  15 * scfact );
        if (scfact == 1)
          cat_rb.setTextColor(Color.argb(255, 100, 100, 100));
        else
          cat_rb.setTextColor(Color.BLACK);
      }
    }

    return convertView;
  }

}

Java Source Code List

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