Android Open Source - TimeSheets Multi Choice Spinner

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Back to project page TimeSheets.
License

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

package com.powerblock.timesheets;
/* www . j av a  2  s.  c  o  m*/
import java.util.ArrayList;
import java.util.Arrays;

import android.annotation.SuppressLint;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnCancelListener;
import android.content.DialogInterface.OnMultiChoiceClickListener;
import android.content.res.TypedArray;
import android.util.AttributeSet;
import android.util.Log;
import android.widget.ArrayAdapter;
import android.widget.Spinner;

@SuppressLint("ClickableViewAccessibility")
public class MultiChoiceSpinner extends Spinner implements
    OnMultiChoiceClickListener, OnCancelListener, PBSpinner {
  private CharSequence[] items;
  private boolean[] selected;
  private String defaultText = "Choose Items";
  private MultiSpinnerListener listener;
  private static XmlHandler mXmlHandler;
  
  public MultiChoiceSpinner(Context context) {
    super(context);
  }
  
  public MultiChoiceSpinner(Context context, AttributeSet arg1){
    super(context,arg1);
    init(arg1);
  }
  
  public MultiChoiceSpinner(Context context, AttributeSet arg1, int arg2){
    super(context,arg1, arg2);
    init(arg1);
  }
  
  public CharSequence[] getSelectedItems(){
    int total = 0;
    for(int i = 0; i < selected.length; i ++){
      if(selected[i] == true){
        total += 1;
      }
    }
    int current = 0;
    CharSequence[] selectedItems = new CharSequence[total];
    for(int i = 0; i < selected.length; i++){
      if(selected[i] == true){
        selectedItems[current] = items[i];
        current += 1;
      }
    }
    
    return selectedItems;
  }
  
  public String getString(){
    StringBuffer b = new StringBuffer();
    for(int i = 0; i < selected.length; i++){
      if(selected[i] == true){
        b.append(items[i] + ",");
      }
    }
    
    return b.toString();
  }
  
  private void init(AttributeSet attrs){
    mXmlHandler = MainActivity.getXmlHandler();
    if(mXmlHandler == null){
      Log.v("Test", "Xml handler is null");
      return;
    }
    TypedArray a = getContext().obtainStyledAttributes(attrs,R.styleable.MultiSpinner);
    CharSequence entry = a.getText(R.styleable.MultiSpinner_multi_entries);
    a.recycle();
    CharSequence[] entries = mXmlHandler.getStrings(entry.toString());
    if(entries != null){
      selected = new boolean[entries.length];
      items = entries;
      ArrayAdapter<String> adapter = new ArrayAdapter<String>(getContext(),android.R.layout.simple_spinner_item, new String[]{defaultText});
      setAdapter(adapter);
    }
    listener = new MultiSpinnerListener() {
      
      @Override
      public void onItemsSelected(CharSequence[] selected) {
        
      }
    };
  }

  @Override
  public void onCancel(DialogInterface dialog) {
    /*StringBuffer spinnerBuffer = new StringBuffer();
    boolean someSelected = false;
    String spinnerText = defaultText;
    if(items != null){
      for(int i = 0; i < items.length; i ++){
        if(selected[i] == true){
          spinnerBuffer.append(items[i]);
          spinnerBuffer.append(", ");
          someSelected = true;
        }
      }
      if (someSelected){
        spinnerText = spinnerBuffer.toString();
        if(spinnerText.length() > 2){
          spinnerText = spinnerText.substring(0, spinnerText.length() - 2);
        }
      } else {
        spinnerText = defaultText;
      }
    }*/
    ArrayAdapter<String> adapter = new ArrayAdapter<String>(getContext(),android.R.layout.simple_spinner_item, new String[] {getSpinnerText()});
    setAdapter(adapter);
    listener.onItemsSelected(getSelectedItems());
  }
  
  private String getSpinnerText(){
    StringBuffer spinnerBuffer = new StringBuffer();
    boolean someSelected = false;
    String spinnerText = defaultText;
    if(items != null){
      for(int i = 0; i < items.length; i ++){
        if(selected[i] == true){
          spinnerBuffer.append(items[i]);
          spinnerBuffer.append(", ");
          someSelected = true;
        }
      }
      if (someSelected){
        spinnerText = spinnerBuffer.toString();
        if(spinnerText.length() > 2){
          spinnerText = spinnerText.substring(0, spinnerText.length() - 2);
        }
      } else {
        spinnerText = defaultText;
      }
    }
    return spinnerText;
  }
  
  @Override
  public boolean performClick(){
    AlertDialog.Builder builder = new AlertDialog.Builder(getContext());
    builder.setMultiChoiceItems(items,selected, this);
    builder.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
      
      @Override
      public void onClick(DialogInterface dialog, int which) {
        dialog.cancel();
      }
    });
    builder.setOnCancelListener(this);
    builder.show();
    return true;
  }

  @Override
  public void onClick(DialogInterface dialog, int which, boolean isChecked) {
    if(isChecked)
      selected[which] = true;
    else
      selected[which] = false;

  }
  
  public void setItems(CharSequence[] items, String allText, MultiSpinnerListener listener){
    this.items = items;
    this.defaultText = allText;
    this.listener = listener;
    
    selected = new boolean[items.length];
    for(int i = 0; i <selected.length; i ++){
      selected[i] = false;
    }
    ArrayAdapter<String> adapter = new ArrayAdapter<String>(getContext(),android.R.layout.simple_spinner_item, new String[]{allText});
    setAdapter(adapter);
  }
  
  public void setListener(MultiSpinnerListener listener){
    this.listener = listener;
  }
  
  public interface MultiSpinnerListener{
    public void onItemsSelected(CharSequence[] selected);
  }

  @Override
  public void select(String s) {
    selected = new boolean[items.length];
    ArrayList<String> l = new ArrayList<String>(Arrays.asList(s.split(",")));
    for(int i = 0; i < items.length; i ++){
      //Log.v("Test", "given: " + l.get(i));
      //Log.v("Test","items: " + items[i]);
      if(l.contains(items[i])){
        selected[i] = true;
      }
    }
    ArrayAdapter<String> adapter = new ArrayAdapter<String>(getContext(),android.R.layout.simple_spinner_item, new String[] {getSpinnerText()});
    setAdapter(adapter);
  }

}
Java Source Code List
