Settings.java

package org.sana.android.activity.settings;

import org.sana.R;
import org.sana.android.Constants;

import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.preference.EditTextPreference;
import android.preference.PreferenceActivity;
import android.preference.PreferenceScreen;
import android.telephony.TelephonyManager;
import android.text.TextUtils;
import android.text.method.PasswordTransformationMethod;
import android.util.Log;

/**
 * Creates the settings window for specifying the Sana application. If a user
 * does not specify their own values, default values are used. Most of these are
 * stored in Constants. The default phone name is the phone's number. String
 * values are stored as preferences and can be retrieved as follows:
 * PreferenceManager.getDefaultSharedPreferences(c).getString("key name")
 * 
 * @author Sana Dev Team
 */
public class Settings extends PreferenceActivity {

    public static final String TAG = Settings.class.getSimpleName();

    /** {@inheritDoc} */
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        addPreferencesFromResource(R.xml.settings);
        initPreferences();
    }

    /** Sets the default values for the the preferences */
    private void initPreferences() {

        // Health worker username for OpenMRS
        EditTextPreference prefEmrUsername = (EditTextPreference) findPreference(Constants.PREFERENCE_EMR_USERNAME);
        if (TextUtils.isEmpty(prefEmrUsername.getText())) {
            prefEmrUsername.setText(Constants.DEFAULT_USERNAME);
        }
        
        // Health worker password for OpenMRS
        EditTextPreference prefEmrPassword = (EditTextPreference) findPreference(Constants.PREFERENCE_EMR_PASSWORD);
        prefEmrPassword.getEditText().setTransformationMethod(
                new PasswordTransformationMethod());
        if (TextUtils.isEmpty(prefEmrPassword.getText())) {
            prefEmrPassword.setText(Constants.DEFAULT_PASSWORD);
        }
        
        // Whether barcode reading is enabled on the phone
        /*
         * CheckBoxPreference barcodeEnabled = new CheckBoxPreference(this);
         * barcodeEnabled.setKey(Constants.PREFERENCE_BARCODE_ENABLED);
         * barcodeEnabled.setTitle("Enable barcode reading");
         * barcodeEnabled.setSummary
         * ("Enable barcode reading of patient and physician ids");
         * barcodeEnabled.setDefaultValue(false);
         * dialogBasedPrefCat.addPreference(barcodeEnabled);
         */        
        
        // Launches network preferences
        PreferenceScreen prefNetwork = (PreferenceScreen) findPreference("s_network_settings");
        if (prefNetwork != null) {
            prefNetwork.setIntent(new Intent(this, NetworkSettings.class));
        }

        // Launches resource preferences
        PreferenceScreen prefResource = (PreferenceScreen) findPreference("s_resource_settings");
        if (prefResource != null) {
            prefResource.setIntent(new Intent(this, ResourceSettings.class));
        }
    }
}