4860e4ee48
Test: make setup-wizard-lib Bug: 76692459 Change-Id: I40171e973d442b1a1815e9e7d7c2cc984cb38bac
135 lines
4.3 KiB
Java
135 lines
4.3 KiB
Java
/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.setupwizardlib.items;
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import android.content.Context;
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import android.content.res.TypedArray;
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import android.util.AttributeSet;
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import android.view.View;
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import android.widget.CompoundButton;
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import androidx.appcompat.widget.SwitchCompat;
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import com.android.setupwizardlib.R;
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/**
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* An item that is displayed with a switch, with methods to manipulate and listen to the checked
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* state of the switch. Note that by default, only click on the switch will change the on-off state.
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* To change the switch state when tapping on the text, use the click handlers of list view or
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* RecyclerItemAdapter with {@link #toggle(View)}.
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*/
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public class SwitchItem extends Item implements CompoundButton.OnCheckedChangeListener {
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/**
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* Listener for check state changes of this switch item.
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*/
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public interface OnCheckedChangeListener {
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/**
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* Callback when checked state of a {@link SwitchItem} is changed.
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*
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* @see #setOnCheckedChangeListener(OnCheckedChangeListener)
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*/
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void onCheckedChange(SwitchItem item, boolean isChecked);
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}
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private boolean mChecked = false;
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private OnCheckedChangeListener mListener;
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/**
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* Creates a default switch item.
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*/
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public SwitchItem() {
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super();
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}
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/**
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* Creates a switch item. This constructor is used for inflation from XML.
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*
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* @param context The context which this item is inflated in.
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* @param attrs The XML attributes defined on the item.
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*/
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public SwitchItem(Context context, AttributeSet attrs) {
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super(context, attrs);
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final TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.SuwSwitchItem);
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mChecked = a.getBoolean(R.styleable.SuwSwitchItem_android_checked, false);
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a.recycle();
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}
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/**
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* Sets whether this item should be checked.
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*/
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public void setChecked(boolean checked) {
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if (mChecked != checked) {
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mChecked = checked;
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notifyItemChanged();
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if (mListener != null) {
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mListener.onCheckedChange(this, checked);
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}
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}
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}
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/**
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* @return True if this switch item is currently checked.
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*/
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public boolean isChecked() {
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return mChecked;
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}
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@Override
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protected int getDefaultLayoutResource() {
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return R.layout.suw_items_switch;
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}
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/**
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* Toggle the checked state of the switch, without invalidating the entire item.
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*
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* @param view The root view of this item, typically from the argument of onItemClick.
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*/
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public void toggle(View view) {
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mChecked = !mChecked;
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final SwitchCompat switchView = (SwitchCompat) view.findViewById(R.id.suw_items_switch);
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switchView.setChecked(mChecked);
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}
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@Override
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public void onBindView(View view) {
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super.onBindView(view);
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final SwitchCompat switchView = (SwitchCompat) view.findViewById(R.id.suw_items_switch);
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switchView.setOnCheckedChangeListener(null);
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switchView.setChecked(mChecked);
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switchView.setOnCheckedChangeListener(this);
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switchView.setEnabled(isEnabled());
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}
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/**
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* Sets a listener to listen for changes in checked state. This listener is invoked in both
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* user toggling the switch and calls to {@link #setChecked(boolean)}.
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*/
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public void setOnCheckedChangeListener(OnCheckedChangeListener listener) {
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mListener = listener;
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}
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@Override
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public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
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mChecked = isChecked;
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if (mListener != null) {
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mListener.onCheckedChange(this, isChecked);
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}
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}
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}
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