src/com/android/settings/core/lifecycle/ObservablePreferenceFragment.java


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98

/*
 * Copyright (C) 2016 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.android.settings.core.lifecycle;


import android.annotation.CallSuper;
import android.content.Context;
import android.os.Bundle;
import android.support.v14.preference.PreferenceFragment;
import android.support.v7.preference.PreferenceScreen;

/**
 * {@link PreferenceFragment} that has hooks to observe fragment lifecycle events.
 */
public abstract class ObservablePreferenceFragment extends PreferenceFragment {

    private final Lifecycle mLifecycle = new Lifecycle();

    protected Lifecycle getLifecycle() {
        return mLifecycle;
    }

    @CallSuper
    @Override
    public void onAttach(Context context) {
        super.onAttach(context);
        mLifecycle.onAttach(context);
    }

    @CallSuper
    @Override
    public void onCreate(Bundle savedInstanceState) {
        mLifecycle.onCreate(savedInstanceState);
        super.onCreate(savedInstanceState);
    }

    @Override
    public void setPreferenceScreen(PreferenceScreen preferenceScreen) {
        mLifecycle.setPreferenceScreen(preferenceScreen);
        super.setPreferenceScreen(preferenceScreen);
    }

    @CallSuper
    @Override
    public void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        mLifecycle.onSaveInstanceState(outState);
    }

    @CallSuper
    @Override
    public void onStart() {
        mLifecycle.onStart();
        super.onStart();
    }

    @CallSuper
    @Override
    public void onStop() {
        mLifecycle.onStop();
        super.onStop();
    }

    @CallSuper
    @Override
    public void onResume() {
        mLifecycle.onResume();
        super.onResume();
    }

    @CallSuper
    @Override
    public void onPause() {
        mLifecycle.onPause();
        super.onPause();
    }

    @CallSuper
    @Override
    public void onDestroy() {
        mLifecycle.onDestroy();
        super.onDestroy();
    }

}