| /* |
| * Copyright (C) 2010 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 android.preference; |
| |
| import android.annotation.StringRes; |
| import android.content.Context; |
| import android.content.res.TypedArray; |
| import android.util.AttributeSet; |
| import android.view.View; |
| import android.widget.Checkable; |
| import android.widget.CompoundButton; |
| import android.widget.Switch; |
| |
| /** |
| * A {@link Preference} that provides a two-state toggleable option. |
| * <p> |
| * This preference will store a boolean into the SharedPreferences. |
| * |
| * @attr ref android.R.styleable#SwitchPreference_summaryOff |
| * @attr ref android.R.styleable#SwitchPreference_summaryOn |
| * @attr ref android.R.styleable#SwitchPreference_switchTextOff |
| * @attr ref android.R.styleable#SwitchPreference_switchTextOn |
| * @attr ref android.R.styleable#SwitchPreference_disableDependentsState |
| */ |
| public class SwitchPreference extends TwoStatePreference { |
| private final Listener mListener = new Listener(); |
| |
| // Switch text for on and off states |
| private CharSequence mSwitchOn; |
| private CharSequence mSwitchOff; |
| |
| private class Listener implements CompoundButton.OnCheckedChangeListener { |
| @Override |
| public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { |
| if (!callChangeListener(isChecked)) { |
| // Listener didn't like it, change it back. |
| // CompoundButton will make sure we don't recurse. |
| buttonView.setChecked(!isChecked); |
| return; |
| } |
| |
| SwitchPreference.this.setChecked(isChecked); |
| } |
| } |
| |
| /** |
| * Construct a new SwitchPreference with the given style options. |
| * |
| * @param context The Context that will style this preference |
| * @param attrs Style attributes that differ from the default |
| * @param defStyleAttr An attribute in the current theme that contains a |
| * reference to a style resource that supplies default values for |
| * the view. Can be 0 to not look for defaults. |
| * @param defStyleRes A resource identifier of a style resource that |
| * supplies default values for the view, used only if |
| * defStyleAttr is 0 or can not be found in the theme. Can be 0 |
| * to not look for defaults. |
| */ |
| public SwitchPreference(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { |
| super(context, attrs, defStyleAttr, defStyleRes); |
| |
| TypedArray a = context.obtainStyledAttributes(attrs, |
| com.android.internal.R.styleable.SwitchPreference, defStyleAttr, defStyleRes); |
| setSummaryOn(a.getString(com.android.internal.R.styleable.SwitchPreference_summaryOn)); |
| setSummaryOff(a.getString(com.android.internal.R.styleable.SwitchPreference_summaryOff)); |
| setSwitchTextOn(a.getString( |
| com.android.internal.R.styleable.SwitchPreference_switchTextOn)); |
| setSwitchTextOff(a.getString( |
| com.android.internal.R.styleable.SwitchPreference_switchTextOff)); |
| setDisableDependentsState(a.getBoolean( |
| com.android.internal.R.styleable.SwitchPreference_disableDependentsState, false)); |
| a.recycle(); |
| } |
| |
| /** |
| * Construct a new SwitchPreference with the given style options. |
| * |
| * @param context The Context that will style this preference |
| * @param attrs Style attributes that differ from the default |
| * @param defStyleAttr An attribute in the current theme that contains a |
| * reference to a style resource that supplies default values for |
| * the view. Can be 0 to not look for defaults. |
| */ |
| public SwitchPreference(Context context, AttributeSet attrs, int defStyleAttr) { |
| this(context, attrs, defStyleAttr, 0); |
| } |
| |
| /** |
| * Construct a new SwitchPreference with the given style options. |
| * |
| * @param context The Context that will style this preference |
| * @param attrs Style attributes that differ from the default |
| */ |
| public SwitchPreference(Context context, AttributeSet attrs) { |
| this(context, attrs, com.android.internal.R.attr.switchPreferenceStyle); |
| } |
| |
| /** |
| * Construct a new SwitchPreference with default style options. |
| * |
| * @param context The Context that will style this preference |
| */ |
| public SwitchPreference(Context context) { |
| this(context, null); |
| } |
| |
| @Override |
| protected void onBindView(View view) { |
| super.onBindView(view); |
| |
| View checkableView = view.findViewById(com.android.internal.R.id.switchWidget); |
| if (checkableView != null && checkableView instanceof Checkable) { |
| if (checkableView instanceof Switch) { |
| final Switch switchView = (Switch) checkableView; |
| switchView.setOnCheckedChangeListener(null); |
| } |
| |
| ((Checkable) checkableView).setChecked(mChecked); |
| |
| if (checkableView instanceof Switch) { |
| final Switch switchView = (Switch) checkableView; |
| switchView.setTextOn(mSwitchOn); |
| switchView.setTextOff(mSwitchOff); |
| switchView.setOnCheckedChangeListener(mListener); |
| } |
| } |
| |
| syncSummaryView(view); |
| } |
| |
| /** |
| * Set the text displayed on the switch widget in the on state. |
| * This should be a very short string; one word if possible. |
| * |
| * @param onText Text to display in the on state |
| */ |
| public void setSwitchTextOn(CharSequence onText) { |
| mSwitchOn = onText; |
| notifyChanged(); |
| } |
| |
| /** |
| * Set the text displayed on the switch widget in the off state. |
| * This should be a very short string; one word if possible. |
| * |
| * @param offText Text to display in the off state |
| */ |
| public void setSwitchTextOff(CharSequence offText) { |
| mSwitchOff = offText; |
| notifyChanged(); |
| } |
| |
| /** |
| * Set the text displayed on the switch widget in the on state. |
| * This should be a very short string; one word if possible. |
| * |
| * @param resId The text as a string resource ID |
| */ |
| public void setSwitchTextOn(@StringRes int resId) { |
| setSwitchTextOn(getContext().getString(resId)); |
| } |
| |
| /** |
| * Set the text displayed on the switch widget in the off state. |
| * This should be a very short string; one word if possible. |
| * |
| * @param resId The text as a string resource ID |
| */ |
| public void setSwitchTextOff(@StringRes int resId) { |
| setSwitchTextOff(getContext().getString(resId)); |
| } |
| |
| /** |
| * @return The text that will be displayed on the switch widget in the on state |
| */ |
| public CharSequence getSwitchTextOn() { |
| return mSwitchOn; |
| } |
| |
| /** |
| * @return The text that will be displayed on the switch widget in the off state |
| */ |
| public CharSequence getSwitchTextOff() { |
| return mSwitchOff; |
| } |
| } |