mirror of
https://github.com/material-components/material-components-android.git
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ab2fec6da4
Bazel is happier if Java/Java test roots are named 'java' and 'javatests', and
this will mean that once we create a BUILD file for
android/support/design/{widget,internal}/ we'll no longer need a custom package
specified in our build (which tends to cause build problems that manifest quite
weirdly). This commit doesn't attempt to refactor the build at all yet, and is
just a pure move.
PiperOrigin-RevId: 178060739
107 lines
3.2 KiB
Java
107 lines
3.2 KiB
Java
/*
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* Copyright (C) 2017 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 android.support.design.stateful;
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import android.os.Bundle;
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import android.os.Parcel;
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import android.os.Parcelable;
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import android.support.v4.util.SimpleArrayMap;
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import android.support.v4.view.AbsSavedState;
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/**
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* SavedState for widgets that want to save and restore their own state in {@link
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* android.view.View#onSaveInstanceState()}. Supports widgets whose state is composed or delegated
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* out to multiple components.
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*
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* <p>Widgets with only composed or delegated state can directly instantiate this class and write to
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* {@link #extendableStates}. Widgets with additional state should subclass ExtendableSavedState
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* rather than trying to force the additional state into {@link #extendableStates}.
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*/
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public class ExtendableSavedState extends AbsSavedState {
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public final SimpleArrayMap<String, Bundle> extendableStates;
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public ExtendableSavedState(Parcelable superState) {
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super(superState);
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extendableStates = new SimpleArrayMap<>();
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}
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private ExtendableSavedState(Parcel in, ClassLoader loader) {
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super(in, loader);
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int size = in.readInt();
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String[] keys = new String[size];
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in.readStringArray(keys);
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Bundle[] states = new Bundle[size];
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in.readTypedArray(states, Bundle.CREATOR);
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extendableStates = new SimpleArrayMap<>(size);
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for (int i = 0; i < size; i++) {
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extendableStates.put(keys[i], states[i]);
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}
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}
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@Override
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public void writeToParcel(Parcel out, int flags) {
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super.writeToParcel(out, flags);
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int size = extendableStates.size();
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out.writeInt(size);
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String[] keys = new String[size];
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Bundle[] states = new Bundle[size];
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for (int i = 0; i < size; i++) {
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keys[i] = extendableStates.keyAt(i);
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states[i] = extendableStates.valueAt(i);
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}
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out.writeStringArray(keys);
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out.writeTypedArray(states, 0);
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}
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@Override
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public String toString() {
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return "ExtendableSavedState{"
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+ Integer.toHexString(System.identityHashCode(this))
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+ " states="
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+ extendableStates
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+ "}";
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}
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public static final Parcelable.Creator<ExtendableSavedState> CREATOR =
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new Parcelable.ClassLoaderCreator<ExtendableSavedState>() {
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@Override
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public ExtendableSavedState createFromParcel(Parcel in, ClassLoader loader) {
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return new ExtendableSavedState(in, loader);
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}
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@Override
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public ExtendableSavedState createFromParcel(Parcel in) {
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return new ExtendableSavedState(in, null);
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}
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@Override
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public ExtendableSavedState[] newArray(int size) {
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return new ExtendableSavedState[size];
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}
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};
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}
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