MultiSmsSender/src/com/openwide/android/PhoneNumberSelection.java

package com.openwide.android;

import java.util.HashSet;

import android.app.ListActivity;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.os.Bundle;
import android.provider.Contacts.Phones;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;


public class PhoneNumberSelection extends ListActivity
{
	PhoneDataListAdapter mAdpater;
	String[] mSelected;
	HashSet<String> mSelectedSet;
	private static final int INSERT_ID = Menu.FIRST;
	private static final int SELECT_ALL_ID = Menu.FIRST + 1;
	private static final int DESELECT_ALL_ID = Menu.FIRST + 2;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.number_list);



		mSelected = savedInstanceState != null ? savedInstanceState.getStringArray(MultiSmsSender.PARAM_NUMBERS_LIST ) : null;

		if (mSelected == null) {
			Bundle extras = getIntent().getExtras();
			mSelected = extras != null ? extras.getStringArray(MultiSmsSender.PARAM_NUMBERS_LIST ) : null;
		}

		mSelectedSet = new HashSet<String>();
		for (int i = 0; i < mSelected.length; i++) {
			mSelectedSet.add(mSelected[i].trim());
		}
		fillData();

		Button ok = (Button) findViewById(R.id.okContacts);
		ok.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View v) {
				Intent i = new Intent();
				String [] numbers = new String[mAdpater.selected.size()];
				mAdpater.selected.toArray(numbers);
				Bundle bundle = new Bundle();

				bundle.putStringArray(MultiSmsSender.PARAM_NUMBERS_LIST, numbers);
				i.putExtras(bundle);
				setResult(RESULT_OK, i);
				finish();

			}
		});


	}

	private void fillData() {
		Cursor c = getContentResolver().query(Phones.CONTENT_URI, null, null, null, Phones.NAME);
		startManagingCursor(c);
		mAdpater = new PhoneDataListAdapter(this, R.layout.number_row, c, new String[] {
				Phones.NAME, Phones.NUMBER
		}, new int[] {R.id.name, R.id.phone}, mSelectedSet);
		setListAdapter(mAdpater);
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		super.onCreateOptionsMenu(menu);
		menu.add(0, INSERT_ID,0, R.string.add_group);
		menu.add(0, SELECT_ALL_ID, 0, R.string.select_all);
		menu.add(0, DESELECT_ALL_ID, 0, R.string.deselect_all);
		return true;
	}

	@Override
	public boolean onMenuItemSelected(int featureId, MenuItem item) {
		switch(item.getItemId()) {
		case INSERT_ID:
			display_group_list();
			return true;
		case SELECT_ALL_ID:
			Cursor c = getContentResolver().query(Phones.CONTENT_URI, null, null, null, Phones.NAME);
			int numberIdx = c.getColumnIndex(Phones.NUMBER);
			c.moveToFirst();
			for (int i = 0; i < c.getCount(); i++) {
				mSelectedSet.add(c.getString(numberIdx));
				c.moveToNext();
			}
			fillData();
			return true;
		case DESELECT_ALL_ID:
			mSelectedSet = new HashSet<String>();
			fillData();
			return true;
		}        
		return super.onMenuItemSelected(featureId, item);
	}


	public void display_group_list(){

		Intent i = new Intent(this, SelectGroupActivity.class);
		startActivityForResult(i, MultiSmsSender.ACTIVITY_ADD_GROUP);
	}

	@Override
	protected void onListItemClick(ListView l, View v, int position, long id) {
		super.onListItemClick(l, v, position, id);
		l.getItemAtPosition(position);
	}

	/*@Override
	protected void onSaveInstanceState(Bundle outState) {
		super.onSaveInstanceState(outState);
		outState.putStringArray(MultiSmsSender.PARAM_NUMBERS_LIST, (String[] )mAdpater.selected.toArray());
	}

	@Override
	protected void onPause() {
		super.onPause();
	}*/

	public class PhoneDataListAdapter extends SimpleCursorAdapter{

		public HashSet<String> selected;
		int nameidx;
		int numberidx;
		Context mContext;

		public PhoneDataListAdapter(Context context, int layout, Cursor c,
				String[] from, int[] to, HashSet<String> selected) {
			super(context, layout, c, from, to);
			nameidx = c.getColumnIndex(Phones.NAME);
			numberidx = c.getColumnIndex(Phones.NUMBER);
			mContext = context;
			this.selected = selected;

		}

		public View getView(int position, View convertView, ViewGroup parent) {
			Cursor c = getCursor();
			c.moveToPosition(position);
			String name = c.getString(nameidx);
			String number = c.getString(numberidx);
			ContactRow contact;
			if (convertView == null) {
				contact = new ContactRow(mContext);
			}else {
				contact = (ContactRow) convertView;
			}
			contact.display(name, number, selected.contains(number));
			contact.mSelectedCheckBox.setOnClickListener(new addNumberToSelectedClickListener(contact));

			return contact;
		}

	}

	private class addNumberToSelectedClickListener implements OnClickListener{

		ContactRow contact;

		public addNumberToSelectedClickListener(ContactRow contact) {
			this.contact = contact;
		}

		public void onClick(View v) {
			CheckBox checkBox = (CheckBox)v;
			if(checkBox.isChecked()) {
				mSelectedSet.add(contact.mNumberView.getText().toString());
			}else {
				mSelectedSet.remove(contact.mNumberView.getText().toString());
			}

		}

	}
	
	protected void onActivityResult(int requestCode, int resultCode, Intent intent) {
		super.onActivityResult(requestCode, resultCode, intent);
		if(intent != null) {
			String [] numbers = intent.getExtras().getStringArray(MultiSmsSender.PARAM_NUMBERS_LIST);
			
			HashSet<String> mSelectedGlobal = new HashSet<String>();
			for (int i = 0; i < numbers.length; i++) {
				mSelectedSet.add(numbers[i]);	
			}
			mSelected = new String[mSelectedSet.size()];
			mSelectedGlobal.toArray(mSelected);
			fillData();
		}
	}
}