SetupActivity.java :  » Contact » android-contacts-cleanup » org » peterbaldwin » client » android » cleanup » Android Open Source

/*-
 *  Copyright (C) 2009 Peter Baldwin   
 *  
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.peterbaldwin.client.android.cleanup;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.RadioButton;
import android.widget.RadioGroup;

/**
 * An activity to configure and initiate a clean-up operation.
 * 
 * TODO: store values in preferences so that activity can be repeated more
 * easily.
 */
public class SetupActivity extends Activity implements View.OnClickListener,
    DialogInterface.OnClickListener {

  private static final String DEFAULT_COUNTRY_CODE = "1";
  private static final String DEFAULT_AREA_CODE = "";

  private static final int PREFERENCES_MODE = MODE_PRIVATE;

  private RadioGroup mGroupFormat;

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.setup);

    mGroupFormat = (RadioGroup) findViewById(R.id.group_format);

    Button button = (Button) findViewById(R.id.PreviewButton);
    button.setOnClickListener(this);

    RadioButton radioButton = (RadioButton) findViewById(R.id.format_space);
    radioButton.toggle();

    loadPreferences();
  }

  @Override
  protected void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);
    savePreferences();
  }

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

  private void loadPreferences() {
    SharedPreferences preferences = getPreferences(PREFERENCES_MODE);
    setView(preferences, R.string.pref_country_code, R.id.CountryCodeText,
        DEFAULT_COUNTRY_CODE);
    setView(preferences, R.string.pref_area_code, R.id.AreaCodeText,
        DEFAULT_AREA_CODE);

    String format = getPreference(preferences, R.string.pref_format, null);
    if (format != null) {
      for (int i = 0; i < mGroupFormat.getChildCount(); i++) {
        RadioButton button = (RadioButton) mGroupFormat.getChildAt(i);
        if (format.equals(getRadioButtonText(button))) {
          button.toggle();
          break;
        }
      }
    }
  }

  private void setView(SharedPreferences preferences, int prefId, int viewId,
      String defValue) {
    String value = getPreference(preferences, prefId, defValue);
    EditText editText = (EditText) findViewById(viewId);
    editText.setText(value);
  }

  private String getEditText(int editTextId) {
    EditText editText = (EditText) findViewById(editTextId);
    return editText.getText().toString();
  }

  private String getPreference(SharedPreferences preferences, int resId,
      String defValue) {
    String key = getString(resId);
    return preferences.getString(key, defValue);
  }

  private String getRadioButtonText(RadioButton button) {
    return button.getText().toString();
  }

  private String getRadioButtonText(int viewId) {
    RadioButton button = (RadioButton) findViewById(viewId);
    return getRadioButtonText(button);
  }

  private String getPreferenceValue(int viewId) {
    if (viewId == R.id.group_format) {
      int buttonId = mGroupFormat.getCheckedRadioButtonId();
      return getRadioButtonText(buttonId);
    } else {
      return getEditText(viewId);
    }
  }

  private void putPreference(SharedPreferences.Editor editor, int viewId,
      int resId) {
    String key = getString(resId);
    String value = getPreferenceValue(viewId);
    editor.putString(key, value);
  }

  private void savePreferences() {
    SharedPreferences preferences = getPreferences(PREFERENCES_MODE);
    SharedPreferences.Editor editor = preferences.edit();
    putPreference(editor, R.id.CountryCodeText, R.string.pref_country_code);
    putPreference(editor, R.id.AreaCodeText, R.string.pref_area_code);
    putPreference(editor, R.id.group_format, R.string.pref_format);
    editor.commit();
  }

  private String getSeparator() {
    RadioGroup group = (RadioGroup) findViewById(R.id.group_format);
    int id = group.getCheckedRadioButtonId();
    switch (id) {
    case R.id.format_dash:
      return "-";
    case R.id.format_dot:
      return ".";
    case R.id.format_nopunc:
      return "";
    case R.id.format_space:
      return " ";
    default:
      RadioButton button = (RadioButton) findViewById(id);
      throw new RuntimeException("unexpected format: " + button.getText());
    }
  }
  
  private static boolean isNumberOfLength(int n, String value) {
    if (value.length() == n) {
      for (int i = 0; i < n; i++) {
        char c = value.charAt(i);
        if (!Character.isDigit(c)) {
          return false;
        }
      }
      return true;
    }
    return false;
  }
  
  private void showError(int resId) {
    String message = getString(resId);
    Context context = this;
    AlertDialog.Builder builder = new AlertDialog.Builder(context);
    builder.setMessage(message);
    builder.setPositiveButton(android.R.string.ok, this);
    AlertDialog dialog = builder.create();
    dialog.show();
  }

  @Override
  public void onClick(View v) {
    String countryCode = getEditText(R.id.CountryCodeText);
    String areaCode = getEditText(R.id.AreaCodeText);
    String separator = getSeparator();

    if (countryCode.equals("1") && !isNumberOfLength(3, areaCode)) {
      showError(R.string.error_invalid_area_code);
    } else {
      Context context = getApplicationContext();
      Intent intent = new Intent(context, PreviewActivity.class);
      intent.putExtra(PreviewActivity.EXTRA_COUNTRY_CODE, countryCode);
      intent.putExtra(PreviewActivity.EXTRA_AREA_CODE, areaCode);
      intent.putExtra(PreviewActivity.EXTRA_SEPARATOR, separator);
      startActivity(intent);
      finish();
    }
  }

  @Override
  public void onClick(DialogInterface dialog, int which) {
    // Pass
  }
}