MultiSmsSender/src/com/hectorone/multismssender/GroupEditActivity.java

package com.hectorone.multismssender;

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.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.SimpleCursorAdapter;

public class GroupEditActivity extends ListActivity {

	GroupDataListAdapter mAdpater;
	GroupsDbAdapter mDb;
	EditText mGroupNameText;
	Long mGid;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.edit_group_list);
		mGroupNameText = (EditText) findViewById(R.id.groupName);
		
		Cursor c = getContentResolver().query(Phones.CONTENT_URI, null, null, null, Phones.NAME);
		startManagingCursor(c);

		String[] mSelected = {};
		
		mDb = new GroupsDbAdapter(this);
		mDb.open();
		
		Long groupId;
		Bundle extras = getIntent().getExtras();
		groupId = extras != null ? extras.getLong(SelectGroupActivity.PARAM_GROUP_ID): null;
		
		if (groupId != null) {
			Cursor groupNameCursor = mDb.fetchGroup(groupId);
			String groupName = groupNameCursor.getString(groupNameCursor.getColumnIndex(GroupsDbAdapter.KEY_GROUP_NAME));
			mGroupNameText.setText(groupName);
			Cursor numbers = mDb.fetchPhonesFromGroup(groupId);
			startManagingCursor(numbers);
			numbers.moveToFirst();
			int phoneNumIdx = numbers.getColumnIndex(Phones.NUMBER);
			mSelected = new String[numbers.getCount()];
			for(int i = 0; i < numbers.getCount(); i++) {
				mSelected[i] = numbers.getString(phoneNumIdx);
				numbers.moveToNext();
			}
			
			mGid = groupId;
		}
		

		mAdpater = new GroupDataListAdapter(this, R.layout.number_row, c, new String[] {
				Phones.NAME, Phones.NUMBER
		}, new int[] {R.id.name, R.id.phone}, mSelected);
		setListAdapter(mAdpater);

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

			public void onClick(View v) {
				createGroup();
				reNameGroup();
				Intent i = new Intent();
				setResult(RESULT_OK, i);
				finish();

			}
		});
	}

	protected void onDestroy() {
		mDb.close();
		super.onDestroy();
	}
	
	private void createGroup() {
		if (mGid == null)  {
			String name = mGroupNameText.getText().toString();
			if(name.equals("")) {
				name = getResources().getString(R.string.noName);
			}
			mGid = mDb.createGroup(name);
		}
	}
	
	private void reNameGroup() {
		if (mGid != null)  {
			String name = mGroupNameText.getText().toString();
			if(name.equals("")) {
				name = getResources().getString(R.string.noName);
			}
			mDb.updateGroup(mGid, name);
		}
	}

	public class GroupDataListAdapter extends SimpleCursorAdapter{

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

		public GroupDataListAdapter(Context context, int layout, Cursor c,
				String[] from, int[] to, String[] rawSelected) {
			super(context, layout, c, from, to);
			nameidx = c.getColumnIndex(Phones.NAME);
			numberidx = c.getColumnIndex(Phones.NUMBER);
			idIdx = c.getColumnIndex(Phones._ID);
			mContext = context;
			selected = new HashSet<String>();
			for (int i = 0; i < rawSelected.length; i++) {
				selected.add(rawSelected[i].trim());
			}
		}

		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);
			long id = c.getLong(idIdx);
			ContactRow contact;
			if (convertView == null) {
				contact = new ContactRow(mContext);
			}else {
				contact = (ContactRow) convertView;
			}
			contact.display(name, number, selected.contains(number), id);
			contact.mSelectedCheckBox.setOnClickListener(new addNumberToGroupClickListener(contact));

			return contact;
		}

	}
	
	private class addNumberToGroupClickListener implements OnClickListener{

		ContactRow mContact;
		
		
		public addNumberToGroupClickListener(ContactRow mContact) {
			super();
			this.mContact = mContact;
		}


		public void onClick(View v) {
			CheckBox cBox = (CheckBox)v;
			createGroup();
			long phoneId = mContact.mId;
			if(cBox.isChecked()) {
				mDb.addPhoneToGroup(mGid, phoneId);
			}else {
				mDb.removePhoneToGroup(mGid, phoneId);
			}
			
		}
		
	}

}