| /* |
| * Copyright (C) 2017 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.app; |
| |
| import android.content.Context; |
| import android.os.Bundle; |
| import android.os.Parcel; |
| import android.os.Parcelable; |
| import android.util.Log; |
| |
| final class FragmentState implements Parcelable { |
| final String mClassName; |
| final int mIndex; |
| final boolean mFromLayout; |
| final int mFragmentId; |
| final int mContainerId; |
| final String mTag; |
| final boolean mRetainInstance; |
| final boolean mDetached; |
| final Bundle mArguments; |
| final boolean mHidden; |
| |
| Bundle mSavedFragmentState; |
| |
| Fragment mInstance; |
| |
| FragmentState(Fragment frag) { |
| mClassName = frag.getClass().getName(); |
| mIndex = frag.mIndex; |
| mFromLayout = frag.mFromLayout; |
| mFragmentId = frag.mFragmentId; |
| mContainerId = frag.mContainerId; |
| mTag = frag.mTag; |
| mRetainInstance = frag.mRetainInstance; |
| mDetached = frag.mDetached; |
| mArguments = frag.mArguments; |
| mHidden = frag.mHidden; |
| } |
| |
| FragmentState(Parcel in) { |
| mClassName = in.readString(); |
| mIndex = in.readInt(); |
| mFromLayout = in.readInt() != 0; |
| mFragmentId = in.readInt(); |
| mContainerId = in.readInt(); |
| mTag = in.readString(); |
| mRetainInstance = in.readInt() != 0; |
| mDetached = in.readInt() != 0; |
| mArguments = in.readBundle(); |
| mHidden = in.readInt() != 0; |
| mSavedFragmentState = in.readBundle(); |
| } |
| |
| public Fragment instantiate(FragmentHostCallback host, FragmentContainer container, |
| Fragment parent, FragmentManagerNonConfig childNonConfig) { |
| if (mInstance == null) { |
| final Context context = host.getContext(); |
| if (mArguments != null) { |
| mArguments.setClassLoader(context.getClassLoader()); |
| } |
| |
| if (container != null) { |
| mInstance = container.instantiate(context, mClassName, mArguments); |
| } else { |
| mInstance = Fragment.instantiate(context, mClassName, mArguments); |
| } |
| |
| if (mSavedFragmentState != null) { |
| mSavedFragmentState.setClassLoader(context.getClassLoader()); |
| mInstance.mSavedFragmentState = mSavedFragmentState; |
| } |
| mInstance.setIndex(mIndex, parent); |
| mInstance.mFromLayout = mFromLayout; |
| mInstance.mRestored = true; |
| mInstance.mFragmentId = mFragmentId; |
| mInstance.mContainerId = mContainerId; |
| mInstance.mTag = mTag; |
| mInstance.mRetainInstance = mRetainInstance; |
| mInstance.mDetached = mDetached; |
| mInstance.mHidden = mHidden; |
| mInstance.mFragmentManager = host.mFragmentManager; |
| |
| if (FragmentManagerImpl.DEBUG) { |
| Log.v(FragmentManagerImpl.TAG, "Instantiated fragment " + mInstance); |
| } |
| } |
| mInstance.mChildNonConfig = childNonConfig; |
| return mInstance; |
| } |
| |
| @Override |
| public int describeContents() { |
| return 0; |
| } |
| |
| @Override |
| public void writeToParcel(Parcel dest, int flags) { |
| dest.writeString(mClassName); |
| dest.writeInt(mIndex); |
| dest.writeInt(mFromLayout ? 1 : 0); |
| dest.writeInt(mFragmentId); |
| dest.writeInt(mContainerId); |
| dest.writeString(mTag); |
| dest.writeInt(mRetainInstance ? 1 : 0); |
| dest.writeInt(mDetached ? 1 : 0); |
| dest.writeBundle(mArguments); |
| dest.writeInt(mHidden ? 1 : 0); |
| dest.writeBundle(mSavedFragmentState); |
| } |
| |
| public static final Parcelable.Creator<FragmentState> CREATOR = |
| new Parcelable.Creator<FragmentState>() { |
| @Override |
| public FragmentState createFromParcel(Parcel in) { |
| return new FragmentState(in); |
| } |
| |
| @Override |
| public FragmentState[] newArray(int size) { |
| return new FragmentState[size]; |
| } |
| }; |
| } |