2 * Copyright (C) 2008 ZXing authors
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 package com.google.zxing.client.android;
19 import android.content.SharedPreferences;
20 import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
21 import android.os.Bundle;
22 import android.preference.CheckBoxPreference;
23 import android.preference.PreferenceScreen;
25 public class BarcodesPreferenceActivity extends android.preference.PreferenceActivity
26 implements OnSharedPreferenceChangeListener {
28 static final String KEY_DECODE_1D = "preferences_decode_1D";
29 static final String KEY_DECODE_QR = "preferences_decode_QR";
30 static final String KEY_PLAY_BEEP = "preferences_play_beep";
32 CheckBoxPreference mDecode1D;
33 CheckBoxPreference mDecodeQR;
34 CheckBoxPreference mPlayBeep;
37 protected void onCreate(Bundle icicle) {
38 super.onCreate(icicle);
39 addPreferencesFromResource(R.xml.preferences);
41 PreferenceScreen preferences = getPreferenceScreen();
42 preferences.getSharedPreferences().registerOnSharedPreferenceChangeListener(this);
43 mDecode1D = (CheckBoxPreference) preferences.findPreference(KEY_DECODE_1D);
44 mDecodeQR = (CheckBoxPreference) preferences.findPreference(KEY_DECODE_QR);
45 mPlayBeep = (CheckBoxPreference) preferences.findPreference(KEY_PLAY_BEEP);
48 // Prevent the user from turning off both decode options
49 public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
50 if (key.equals(KEY_DECODE_1D)) {
51 mDecodeQR.setEnabled(mDecode1D.isChecked());
52 mDecodeQR.setChecked(true);
53 } else if (key.equals(KEY_DECODE_QR)) {
54 mDecode1D.setEnabled(mDecodeQR.isChecked());
55 mDecode1D.setChecked(true);