CameraPreference.java revision 3889cf31101cfd4d336f1ce5ae5122c2cb3c0fdc 
1/*
2 * Copyright (C) 2009 The Android Open Source Project
3 *
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
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
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.
15 */
16
17package com.android.camera;
18
19import android.content.Context;
20import android.content.SharedPreferences;
21import android.content.res.TypedArray;
22import android.preference.PreferenceManager;
23import android.util.AttributeSet;
24
25import com.google.android.camera.R;
26
27/**
28 * The base class of all Preferences used in Camera. The preferences can be
29 * loaded from XML resource by <code>PreferenceInflater</code>.
30 */
31public abstract class CameraPreference {
32
33    private String mTitle;
34    private SharedPreferences mSharedPreferences;
35    private Context mContext;
36
37    public CameraPreference(Context context, AttributeSet attrs) {
38        mContext = context;
39        TypedArray a = context.obtainStyledAttributes(
40                attrs, R.styleable.CameraPreference, 0, 0);
41        mTitle = a.getString(R.styleable.CameraPreference_title);
42        a.recycle();
43    }
44
45    public String getTitle() {
46        return mTitle;
47    }
48
49    protected SharedPreferences getSharedPreferences() {
50        if (mSharedPreferences == null) {
51            mSharedPreferences =
52                    PreferenceManager.getDefaultSharedPreferences(mContext);
53        }
54        return mSharedPreferences;
55    }
56
57    public abstract void reloadValue();
58}
59