1 /* 2 * Copyright (C) 2019 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 17 package com.android.settings.gestures; 18 19 import android.app.settings.SettingsEnums; 20 import android.content.Context; 21 import android.content.res.Resources; 22 import android.content.res.TypedArray; 23 import android.os.Bundle; 24 import android.provider.Settings; 25 import android.view.WindowManager; 26 27 import com.android.settings.R; 28 import com.android.settings.dashboard.DashboardFragment; 29 import com.android.settings.search.BaseSearchIndexProvider; 30 import com.android.settings.widget.LabeledSeekBarPreference; 31 import com.android.settingslib.search.SearchIndexable; 32 33 /** 34 * A fragment to include all the settings related to Gesture Navigation mode. 35 */ 36 @SearchIndexable(forTarget = SearchIndexable.ALL & ~SearchIndexable.ARC) 37 public class GestureNavigationSettingsFragment extends DashboardFragment { 38 39 public static final String TAG = "GestureNavigationSettingsFragment"; 40 41 public static final String GESTURE_NAVIGATION_SETTINGS = 42 "com.android.settings.GESTURE_NAVIGATION_SETTINGS"; 43 44 private static final String LEFT_EDGE_SEEKBAR_KEY = "gesture_left_back_sensitivity"; 45 private static final String RIGHT_EDGE_SEEKBAR_KEY = "gesture_right_back_sensitivity"; 46 47 private WindowManager mWindowManager; 48 private BackGestureIndicatorView mIndicatorView; 49 50 private float[] mBackGestureInsetScales; 51 private float mDefaultBackGestureInset; 52 GestureNavigationSettingsFragment()53 public GestureNavigationSettingsFragment() { 54 super(); 55 } 56 57 @Override onCreate(Bundle savedInstanceState)58 public void onCreate(Bundle savedInstanceState) { 59 super.onCreate(savedInstanceState); 60 61 mIndicatorView = new BackGestureIndicatorView(getActivity()); 62 mWindowManager = (WindowManager) getActivity().getSystemService(Context.WINDOW_SERVICE); 63 } 64 65 @Override onCreatePreferences(Bundle savedInstanceState, String rootKey)66 public void onCreatePreferences(Bundle savedInstanceState, String rootKey) { 67 super.onCreatePreferences(savedInstanceState, rootKey); 68 69 final Resources res = getActivity().getResources(); 70 mDefaultBackGestureInset = res.getDimensionPixelSize( 71 com.android.internal.R.dimen.config_backGestureInset); 72 mBackGestureInsetScales = getFloatArray(res.obtainTypedArray( 73 com.android.internal.R.array.config_backGestureInsetScales)); 74 75 initSeekBarPreference(LEFT_EDGE_SEEKBAR_KEY); 76 initSeekBarPreference(RIGHT_EDGE_SEEKBAR_KEY); 77 } 78 79 @Override onResume()80 public void onResume() { 81 super.onResume(); 82 83 mWindowManager.addView(mIndicatorView, mIndicatorView.getLayoutParams( 84 getActivity().getWindow().getAttributes())); 85 } 86 87 @Override onPause()88 public void onPause() { 89 super.onPause(); 90 91 mWindowManager.removeView(mIndicatorView); 92 } 93 94 @Override getPreferenceScreenResId()95 protected int getPreferenceScreenResId() { 96 return R.xml.gesture_navigation_settings; 97 } 98 99 @Override getHelpResource()100 public int getHelpResource() { 101 // TODO(b/146001201): Replace with gesture navigation help page when ready. 102 return R.string.help_uri_default; 103 } 104 105 @Override getLogTag()106 protected String getLogTag() { 107 return TAG; 108 } 109 110 @Override getMetricsCategory()111 public int getMetricsCategory() { 112 return SettingsEnums.SETTINGS_GESTURE_NAV_BACK_SENSITIVITY_DLG; 113 } 114 initSeekBarPreference(final String key)115 private void initSeekBarPreference(final String key) { 116 final LabeledSeekBarPreference pref = getPreferenceScreen().findPreference(key); 117 pref.setContinuousUpdates(true); 118 119 final String settingsKey = key == LEFT_EDGE_SEEKBAR_KEY 120 ? Settings.Secure.BACK_GESTURE_INSET_SCALE_LEFT 121 : Settings.Secure.BACK_GESTURE_INSET_SCALE_RIGHT; 122 final float initScale = Settings.Secure.getFloat( 123 getContext().getContentResolver(), settingsKey, 1.0f); 124 125 // Find the closest value to initScale 126 float minDistance = Float.MAX_VALUE; 127 int minDistanceIndex = -1; 128 for (int i = 0; i < mBackGestureInsetScales.length; i++) { 129 float d = Math.abs(mBackGestureInsetScales[i] - initScale); 130 if (d < minDistance) { 131 minDistance = d; 132 minDistanceIndex = i; 133 } 134 } 135 pref.setProgress(minDistanceIndex); 136 137 pref.setOnPreferenceChangeListener((p, v) -> { 138 final int width = (int) (mDefaultBackGestureInset * mBackGestureInsetScales[(int) v]); 139 mIndicatorView.setIndicatorWidth(width, key == LEFT_EDGE_SEEKBAR_KEY); 140 return true; 141 }); 142 143 pref.setOnPreferenceChangeStopListener((p, v) -> { 144 mIndicatorView.setIndicatorWidth(0, key == LEFT_EDGE_SEEKBAR_KEY); 145 final float scale = mBackGestureInsetScales[(int) v]; 146 Settings.Secure.putFloat(getContext().getContentResolver(), settingsKey, scale); 147 return true; 148 }); 149 } 150 getFloatArray(TypedArray array)151 private static float[] getFloatArray(TypedArray array) { 152 int length = array.length(); 153 float[] floatArray = new float[length]; 154 for (int i = 0; i < length; i++) { 155 floatArray[i] = array.getFloat(i, 1.0f); 156 } 157 array.recycle(); 158 return floatArray; 159 } 160 161 public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER = 162 new BaseSearchIndexProvider(R.xml.gesture_navigation_settings) { 163 164 @Override 165 protected boolean isPageSearchEnabled(Context context) { 166 return SystemNavigationPreferenceController.isGestureAvailable(context); 167 } 168 }; 169 170 } 171