Adam Powell | be0a453 | 2010-11-29 17:47:48 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2010 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 android.preference; |
| 18 | |
| 19 | import android.content.Context; |
| 20 | import android.content.res.TypedArray; |
| 21 | import android.util.AttributeSet; |
| 22 | import android.view.View; |
| 23 | import android.widget.Checkable; |
| 24 | import android.widget.CompoundButton; |
| 25 | import android.widget.Switch; |
| 26 | |
| 27 | /** |
| 28 | * A {@link Preference} that provides a two-state toggleable option. |
| 29 | * <p> |
| 30 | * This preference will store a boolean into the SharedPreferences. |
| 31 | * |
| 32 | * @attr ref android.R.styleable#SwitchPreference_summaryOff |
| 33 | * @attr ref android.R.styleable#SwitchPreference_summaryOn |
| 34 | * @attr ref android.R.styleable#SwitchPreference_switchTextOff |
| 35 | * @attr ref android.R.styleable#SwitchPreference_switchTextOn |
| 36 | * @attr ref android.R.styleable#SwitchPreference_disableDependentsState |
| 37 | */ |
| 38 | public class SwitchPreference extends TwoStatePreference { |
| 39 | // Switch text for on and off states |
| 40 | private CharSequence mSwitchOn; |
| 41 | private CharSequence mSwitchOff; |
| 42 | private final Listener mListener = new Listener(); |
| 43 | |
Adam Powell | 94f67e2 | 2011-08-23 20:35:49 -0700 | [diff] [blame] | 44 | private class Listener implements CompoundButton.OnCheckedChangeListener { |
Adam Powell | be0a453 | 2010-11-29 17:47:48 -0800 | [diff] [blame] | 45 | @Override |
| 46 | public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { |
Adam Powell | 94f67e2 | 2011-08-23 20:35:49 -0700 | [diff] [blame] | 47 | if (!callChangeListener(isChecked)) { |
| 48 | // Listener didn't like it, change it back. |
| 49 | // CompoundButton will make sure we don't recurse. |
| 50 | buttonView.setChecked(!isChecked); |
| 51 | return; |
| 52 | } |
| 53 | |
Adam Powell | be0a453 | 2010-11-29 17:47:48 -0800 | [diff] [blame] | 54 | SwitchPreference.this.setChecked(isChecked); |
| 55 | } |
| 56 | } |
| 57 | |
| 58 | /** |
| 59 | * Construct a new SwitchPreference with the given style options. |
| 60 | * |
| 61 | * @param context The Context that will style this preference |
| 62 | * @param attrs Style attributes that differ from the default |
| 63 | * @param defStyle Theme attribute defining the default style options |
| 64 | */ |
| 65 | public SwitchPreference(Context context, AttributeSet attrs, int defStyle) { |
| 66 | super(context, attrs, defStyle); |
| 67 | |
| 68 | TypedArray a = context.obtainStyledAttributes(attrs, |
| 69 | com.android.internal.R.styleable.SwitchPreference, defStyle, 0); |
| 70 | setSummaryOn(a.getString(com.android.internal.R.styleable.SwitchPreference_summaryOn)); |
| 71 | setSummaryOff(a.getString(com.android.internal.R.styleable.SwitchPreference_summaryOff)); |
| 72 | setSwitchTextOn(a.getString( |
| 73 | com.android.internal.R.styleable.SwitchPreference_switchTextOn)); |
| 74 | setSwitchTextOff(a.getString( |
| 75 | com.android.internal.R.styleable.SwitchPreference_switchTextOff)); |
| 76 | setDisableDependentsState(a.getBoolean( |
| 77 | com.android.internal.R.styleable.SwitchPreference_disableDependentsState, false)); |
| 78 | a.recycle(); |
| 79 | } |
| 80 | |
| 81 | /** |
| 82 | * Construct a new SwitchPreference with the given style options. |
| 83 | * |
| 84 | * @param context The Context that will style this preference |
| 85 | * @param attrs Style attributes that differ from the default |
| 86 | */ |
| 87 | public SwitchPreference(Context context, AttributeSet attrs) { |
| 88 | this(context, attrs, com.android.internal.R.attr.switchPreferenceStyle); |
| 89 | } |
| 90 | |
| 91 | /** |
| 92 | * Construct a new SwitchPreference with default style options. |
| 93 | * |
| 94 | * @param context The Context that will style this preference |
| 95 | */ |
| 96 | public SwitchPreference(Context context) { |
| 97 | this(context, null); |
| 98 | } |
| 99 | |
| 100 | @Override |
| 101 | protected void onBindView(View view) { |
| 102 | super.onBindView(view); |
| 103 | |
| 104 | View checkableView = view.findViewById(com.android.internal.R.id.switchWidget); |
| 105 | if (checkableView != null && checkableView instanceof Checkable) { |
| 106 | ((Checkable) checkableView).setChecked(mChecked); |
Svetoslav Ganov | 7650259 | 2011-07-29 10:44:59 -0700 | [diff] [blame] | 107 | |
| 108 | sendAccessibilityEvent(checkableView); |
Adam Powell | be0a453 | 2010-11-29 17:47:48 -0800 | [diff] [blame] | 109 | |
| 110 | if (checkableView instanceof Switch) { |
| 111 | final Switch switchView = (Switch) checkableView; |
| 112 | switchView.setTextOn(mSwitchOn); |
| 113 | switchView.setTextOff(mSwitchOff); |
| 114 | switchView.setOnCheckedChangeListener(mListener); |
| 115 | } |
Adam Powell | be0a453 | 2010-11-29 17:47:48 -0800 | [diff] [blame] | 116 | } |
| 117 | |
| 118 | syncSummaryView(view); |
| 119 | } |
| 120 | |
| 121 | /** |
| 122 | * Set the text displayed on the switch widget in the on state. |
| 123 | * This should be a very short string; one word if possible. |
| 124 | * |
| 125 | * @param onText Text to display in the on state |
| 126 | */ |
| 127 | public void setSwitchTextOn(CharSequence onText) { |
| 128 | mSwitchOn = onText; |
| 129 | notifyChanged(); |
| 130 | } |
| 131 | |
| 132 | /** |
| 133 | * Set the text displayed on the switch widget in the off state. |
| 134 | * This should be a very short string; one word if possible. |
| 135 | * |
| 136 | * @param offText Text to display in the off state |
| 137 | */ |
| 138 | public void setSwitchTextOff(CharSequence offText) { |
| 139 | mSwitchOff = offText; |
| 140 | notifyChanged(); |
| 141 | } |
| 142 | |
| 143 | /** |
| 144 | * Set the text displayed on the switch widget in the on state. |
| 145 | * This should be a very short string; one word if possible. |
| 146 | * |
| 147 | * @param resId The text as a string resource ID |
| 148 | */ |
| 149 | public void setSwitchTextOn(int resId) { |
| 150 | setSwitchTextOn(getContext().getString(resId)); |
| 151 | } |
| 152 | |
| 153 | /** |
| 154 | * Set the text displayed on the switch widget in the off state. |
| 155 | * This should be a very short string; one word if possible. |
| 156 | * |
| 157 | * @param resId The text as a string resource ID |
| 158 | */ |
| 159 | public void setSwitchTextOff(int resId) { |
| 160 | setSwitchTextOff(getContext().getString(resId)); |
| 161 | } |
| 162 | |
| 163 | /** |
| 164 | * @return The text that will be displayed on the switch widget in the on state |
| 165 | */ |
| 166 | public CharSequence getSwitchTextOn() { |
| 167 | return mSwitchOn; |
| 168 | } |
| 169 | |
| 170 | /** |
| 171 | * @return The text that will be displayed on the switch widget in the off state |
| 172 | */ |
| 173 | public CharSequence getSwitchTextOff() { |
| 174 | return mSwitchOff; |
| 175 | } |
| 176 | } |