blob: a30713661ca041f84d6120c31d2774e6e17d3cdc (
plain)
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
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
|
/*
* Copyright (C) 2015 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.display;
import android.annotation.Nullable;
import android.app.settings.SettingsEnums;
import android.content.Context;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.os.Bundle;
import android.view.Display;
import com.android.settings.R;
import com.android.settings.search.BaseSearchIndexProvider;
import com.android.settingslib.search.Indexable;
import com.android.settingslib.search.SearchIndexableRaw;
import com.android.settingslib.display.DisplayDensityConfiguration;
import com.android.settingslib.display.DisplayDensityUtils;
import com.android.settingslib.search.SearchIndexable;
import java.util.ArrayList;
import java.util.List;
/**
* Preference fragment used to control screen zoom.
*/
@SearchIndexable(forTarget = SearchIndexable.ALL & ~SearchIndexable.ARC)
public class ScreenZoomSettings extends PreviewSeekBarPreferenceFragment {
private int mDefaultDensity;
private int[] mValues;
@Override
protected int getActivityLayoutResId() {
return R.layout.screen_zoom_activity;
}
@Override
protected int[] getPreviewSampleResIds() {
return getContext().getResources().getBoolean(
R.bool.config_enable_extra_screen_zoom_preview)
? new int[]{
R.layout.screen_zoom_preview_1,
R.layout.screen_zoom_preview_2,
R.layout.screen_zoom_preview_settings}
: new int[]{R.layout.screen_zoom_preview_1};
}
@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
final DisplayDensityUtils density = new DisplayDensityUtils(getContext());
final int initialIndex = density.getCurrentIndex();
if (initialIndex < 0) {
// Failed to obtain default density, which means we failed to
// connect to the window manager service. Just use the current
// density and don't let the user change anything.
final int densityDpi = getResources().getDisplayMetrics().densityDpi;
mValues = new int[]{densityDpi};
mEntries = new String[]{getString(DisplayDensityUtils.SUMMARY_DEFAULT)};
mInitialIndex = 0;
mDefaultDensity = densityDpi;
} else {
mValues = density.getValues();
mEntries = density.getEntries();
mInitialIndex = initialIndex;
mDefaultDensity = density.getDefaultDensity();
}
getActivity().setTitle(R.string.screen_zoom_title);
}
@Override
protected Configuration createConfig(Configuration origConfig, int index) {
// Populate the sample layouts.
final Configuration config = new Configuration(origConfig);
config.densityDpi = mValues[index];
return config;
}
/**
* Persists the selected density and sends a configuration change.
*/
@Override
protected void commit() {
final int densityDpi = mValues[mCurrentIndex];
if (densityDpi == mDefaultDensity) {
DisplayDensityConfiguration.clearForcedDisplayDensity(Display.DEFAULT_DISPLAY);
} else {
DisplayDensityConfiguration.setForcedDisplayDensity(Display.DEFAULT_DISPLAY, densityDpi);
}
}
@Override
public int getHelpResource() {
return R.string.help_url_display_size;
}
@Override
public int getMetricsCategory() {
return SettingsEnums.DISPLAY_SCREEN_ZOOM;
}
/** Index provider used to expose this fragment in search. */
public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
new BaseSearchIndexProvider() {
@Override
public List<SearchIndexableRaw> getRawDataToIndex(Context context,
boolean enabled) {
final Resources res = context.getResources();
final SearchIndexableRaw data = new SearchIndexableRaw(context);
data.title = res.getString(R.string.screen_zoom_title);
data.key = "screen_zoom_settings";
data.screenTitle = res.getString(R.string.screen_zoom_title);
data.keywords = res.getString(R.string.screen_zoom_keywords);
final List<SearchIndexableRaw> result = new ArrayList<>(1);
result.add(data);
return result;
}
};
}
|
