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.PreferenceActivity;
24 import android.preference.PreferenceScreen;
26 public final class PreferencesActivity extends PreferenceActivity
27 implements OnSharedPreferenceChangeListener {
29 static final String KEY_DECODE_1D = "preferences_decode_1D";
30 static final String KEY_DECODE_QR = "preferences_decode_QR";
31 public static final String KEY_CUSTOM_PRODUCT_SEARCH = "preferences_custom_product_search";
33 static final String KEY_PLAY_BEEP = "preferences_play_beep";
34 static final String KEY_VIBRATE = "preferences_vibrate";
35 static final String KEY_COPY_TO_CLIPBOARD = "preferences_copy_to_clipboard";
37 static final String KEY_HELP_VERSION_SHOWN = "preferences_help_version_shown";
39 CheckBoxPreference mDecode1D;
40 CheckBoxPreference mDecodeQR;
43 protected void onCreate(Bundle icicle) {
44 super.onCreate(icicle);
45 addPreferencesFromResource(R.xml.preferences);
47 PreferenceScreen preferences = getPreferenceScreen();
48 preferences.getSharedPreferences().registerOnSharedPreferenceChangeListener(this);
49 mDecode1D = (CheckBoxPreference) preferences.findPreference(KEY_DECODE_1D);
50 mDecodeQR = (CheckBoxPreference) preferences.findPreference(KEY_DECODE_QR);
53 // Prevent the user from turning off both decode options
54 public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
55 if (key.equals(KEY_DECODE_1D)) {
56 mDecodeQR.setEnabled(mDecode1D.isChecked());
57 mDecodeQR.setChecked(true);
58 } else if (key.equals(KEY_DECODE_QR)) {
59 mDecode1D.setEnabled(mDecodeQR.isChecked());
60 mDecode1D.setChecked(true);