Android Open Source - RelayRemote Edit Relay Group

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License

The source code is released under:

GNU General Public License

Java Source Code

// Copyright (C) 2012 Shane Tully 
///*w w  w.ja  v a  2s.c  om*/
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser 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 Lesser General Public License for more details.
// 
// You should have received a copy of the GNU Lesser General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package com.shanet.relayremote;

import java.util.ArrayList;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.SparseBooleanArray;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.Toast;

public class EditRelayGroup extends Activity {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        
        setContentView(R.layout.add_edit_relay_group);
        
        // Get the group to edit
        final Database db = new Database(this);
        final RelayGroup editGroup = db.selectRelayGroup(getIntent().getIntExtra("gid", -1));
                
        final EditText nameText   = (EditText) findViewById(R.id.addEditGroupName);
        final ListView relayList  = (ListView) findViewById(R.id.addEditRelayList);
        Button editGroupButton     = (Button) findViewById(R.id.addEditRelayGroup);
        Button emptyButton         = (Button) findViewById(R.id.emptyAddRelayGroup);
        
        // Change the edit relay button text since the layout is shared with the add relay activity
        editGroupButton.setText(R.string.updateGroup);
        
        // Fill the list with all available relays
        final ArrayList<Relay> relays = new Database(this).selectAllRelays();
        ArrayList<String> relayNames = new ArrayList<String>();
        for(Relay relay : relays) {
            relayNames.add(relay.getName());
        }
        relayList.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
        relayList.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_multiple_choice, relayNames));
        
        // Add the empty view to the list
        relayList.setEmptyView(findViewById(R.id.addGroupEmpty));
        
        // Set the relays already in the group as selected in the relay list
        for(int i=0; i<relays.size(); i++) {
            if(editGroup.getRids().contains(relays.get(i).getRid())) {
                relayList.setItemChecked(i, true);
            }       
        }

        // Set the name in the UI
        nameText.setText(editGroup.getName());
        
        // If the list is empty, remove the other views
        if(relayList.getAdapter().getCount() == 0) {
            findViewById(R.id.addEditGroupNameLabel).setVisibility(View.GONE);
            findViewById(R.id.addEditRelayListLabel).setVisibility(View.GONE);
            nameText.setVisibility(View.GONE);
            editGroupButton.setVisibility(View.GONE);
        }
        
        // Set the click listener on the add group button
        editGroupButton.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                // Check that the name isn't empty
                String name = nameText.getText().toString();
                if(name.equals("")) {
                    DialogUtils.displayErrorDialog(EditRelayGroup.this, R.string.emptyNameErrorTitle, R.string.emptyNameError);
                    return;
                }
                
                // Get the selected groups
                ArrayList<Integer> rids = new ArrayList<Integer>();
                
                // Get the selected indices
                SparseBooleanArray checkedItems = relayList.getCheckedItemPositions();

                // Add the selected items to the rids array
                for(int i=0; i<relays.size(); i++) {
                    if(checkedItems.get(i)) {
                        rids.add(relays.get(i).getRid());
                    }
                }
                
                // Check if no relays were selected
                if(rids.size() == 0) {
                    DialogUtils.displayErrorDialog(EditRelayGroup.this, R.string.noGroupsSelectedErrorTitle, R.string.noGroupsSelectedError);
                    return;
                }
                
                // Update the fields in the group
                editGroup.setName(name);
                editGroup.setRids(rids);
                                
                // Update the relay in the db
                db.updateRelayGroup(editGroup);
                
                Toast.makeText(EditRelayGroup.this, R.string.editedGroup, Toast.LENGTH_SHORT).show();
                
                // Return to the calling activity
                finish();
            }
        });
        
        // Set the click listener on the empty add relay button
        emptyButton.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                EditRelayGroup.this.startActivity(new Intent(EditRelayGroup.this, AddRelay.class));
            }
        });
    }
    
    @Override 
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.generic_options_menu, menu);
        return true;
    }

    
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        return Utils.onOptionsItemSelected(this, item);
    }
}

Java Source Code List

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