| /* |
| * 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 android.support.v7.preference; |
| |
| import android.content.Context; |
| import android.content.res.TypedArray; |
| import android.support.v4.content.res.TypedArrayUtils; |
| import android.support.v7.widget.SwitchCompat; |
| import android.util.AttributeSet; |
| import android.view.View; |
| import android.view.accessibility.AccessibilityManager; |
| import android.widget.Checkable; |
| import android.widget.CompoundButton; |
| |
| /** |
| * 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 SwitchPreferenceCompat 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; |
| } |
| |
| SwitchPreferenceCompat.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 SwitchPreferenceCompat(Context context, AttributeSet attrs, int defStyleAttr, |
| int defStyleRes) { |
| super(context, attrs, defStyleAttr, defStyleRes); |
| |
| TypedArray a = context.obtainStyledAttributes(attrs, |
| R.styleable.SwitchPreferenceCompat, defStyleAttr, defStyleRes); |
| |
| setSummaryOn(TypedArrayUtils.getString(a, R.styleable.SwitchPreferenceCompat_summaryOn, |
| R.styleable.SwitchPreferenceCompat_android_summaryOn)); |
| |
| setSummaryOff(TypedArrayUtils.getString(a, R.styleable.SwitchPreferenceCompat_summaryOff, |
| R.styleable.SwitchPreferenceCompat_android_summaryOff)); |
| |
| setSwitchTextOn(TypedArrayUtils.getString(a, |
| R.styleable.SwitchPreferenceCompat_switchTextOn, |
| R.styleable.SwitchPreferenceCompat_android_switchTextOn)); |
| |
| setSwitchTextOff(TypedArrayUtils.getString(a, |
| R.styleable.SwitchPreferenceCompat_switchTextOff, |
| R.styleable.SwitchPreferenceCompat_android_switchTextOff)); |
| |
| setDisableDependentsState(TypedArrayUtils.getBoolean(a, |
| R.styleable.SwitchPreferenceCompat_disableDependentsState, |
| R.styleable.SwitchPreferenceCompat_android_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 SwitchPreferenceCompat(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 SwitchPreferenceCompat(Context context, AttributeSet attrs) { |
| this(context, attrs, R.attr.switchPreferenceCompatStyle); |
| } |
| |
| /** |
| * Construct a new SwitchPreference with default style options. |
| * |
| * @param context The Context that will style this preference |
| */ |
| public SwitchPreferenceCompat(Context context) { |
| this(context, null); |
| } |
| |
| @Override |
| public void onBindViewHolder(PreferenceViewHolder holder) { |
| super.onBindViewHolder(holder); |
| View switchView = holder.findViewById(R.id.switchWidget); |
| syncSwitchView(switchView); |
| syncSummaryView(holder); |
| } |
| |
| /** |
| * 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(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(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; |
| } |
| |
| /** |
| * @hide |
| */ |
| @Override |
| protected void performClick(View view) { |
| super.performClick(view); |
| syncViewIfAccessibilityEnabled(view); |
| } |
| |
| private void syncViewIfAccessibilityEnabled(View view) { |
| AccessibilityManager accessibilityManager = (AccessibilityManager) |
| getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); |
| if (!accessibilityManager.isEnabled()) { |
| return; |
| } |
| |
| View switchView = view.findViewById(R.id.switchWidget); |
| syncSwitchView(switchView); |
| |
| View summaryView = view.findViewById(android.R.id.summary); |
| syncSummaryView(summaryView); |
| } |
| |
| private void syncSwitchView(View view) { |
| if (view instanceof SwitchCompat) { |
| final SwitchCompat switchView = (SwitchCompat) view; |
| switchView.setOnCheckedChangeListener(null); |
| } |
| if (view instanceof Checkable) { |
| ((Checkable) view).setChecked(mChecked); |
| } |
| if (view instanceof SwitchCompat) { |
| final SwitchCompat switchView = (SwitchCompat) view; |
| switchView.setTextOn(mSwitchOn); |
| switchView.setTextOff(mSwitchOff); |
| switchView.setOnCheckedChangeListener(mListener); |
| } |
| } |
| } |