Aurimas Liutikas | 6acbe07 | 2017-02-08 10:48:40 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2017 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package android.app; |
| 18 | |
| 19 | import android.content.Context; |
| 20 | import android.os.Bundle; |
| 21 | import android.os.Parcel; |
| 22 | import android.os.Parcelable; |
| 23 | import android.util.Log; |
| 24 | |
| 25 | final class FragmentState implements Parcelable { |
| 26 | final String mClassName; |
| 27 | final int mIndex; |
| 28 | final boolean mFromLayout; |
| 29 | final int mFragmentId; |
| 30 | final int mContainerId; |
| 31 | final String mTag; |
| 32 | final boolean mRetainInstance; |
| 33 | final boolean mDetached; |
| 34 | final Bundle mArguments; |
| 35 | final boolean mHidden; |
| 36 | |
| 37 | Bundle mSavedFragmentState; |
| 38 | |
| 39 | Fragment mInstance; |
| 40 | |
| 41 | FragmentState(Fragment frag) { |
| 42 | mClassName = frag.getClass().getName(); |
| 43 | mIndex = frag.mIndex; |
| 44 | mFromLayout = frag.mFromLayout; |
| 45 | mFragmentId = frag.mFragmentId; |
| 46 | mContainerId = frag.mContainerId; |
| 47 | mTag = frag.mTag; |
| 48 | mRetainInstance = frag.mRetainInstance; |
| 49 | mDetached = frag.mDetached; |
| 50 | mArguments = frag.mArguments; |
| 51 | mHidden = frag.mHidden; |
| 52 | } |
| 53 | |
| 54 | FragmentState(Parcel in) { |
| 55 | mClassName = in.readString(); |
| 56 | mIndex = in.readInt(); |
| 57 | mFromLayout = in.readInt() != 0; |
| 58 | mFragmentId = in.readInt(); |
| 59 | mContainerId = in.readInt(); |
| 60 | mTag = in.readString(); |
| 61 | mRetainInstance = in.readInt() != 0; |
| 62 | mDetached = in.readInt() != 0; |
| 63 | mArguments = in.readBundle(); |
| 64 | mHidden = in.readInt() != 0; |
| 65 | mSavedFragmentState = in.readBundle(); |
| 66 | } |
| 67 | |
| 68 | public Fragment instantiate(FragmentHostCallback host, FragmentContainer container, |
| 69 | Fragment parent, FragmentManagerNonConfig childNonConfig) { |
| 70 | if (mInstance == null) { |
| 71 | final Context context = host.getContext(); |
| 72 | if (mArguments != null) { |
| 73 | mArguments.setClassLoader(context.getClassLoader()); |
| 74 | } |
| 75 | |
| 76 | if (container != null) { |
| 77 | mInstance = container.instantiate(context, mClassName, mArguments); |
| 78 | } else { |
| 79 | mInstance = Fragment.instantiate(context, mClassName, mArguments); |
| 80 | } |
| 81 | |
| 82 | if (mSavedFragmentState != null) { |
| 83 | mSavedFragmentState.setClassLoader(context.getClassLoader()); |
| 84 | mInstance.mSavedFragmentState = mSavedFragmentState; |
| 85 | } |
| 86 | mInstance.setIndex(mIndex, parent); |
| 87 | mInstance.mFromLayout = mFromLayout; |
| 88 | mInstance.mRestored = true; |
| 89 | mInstance.mFragmentId = mFragmentId; |
| 90 | mInstance.mContainerId = mContainerId; |
| 91 | mInstance.mTag = mTag; |
| 92 | mInstance.mRetainInstance = mRetainInstance; |
| 93 | mInstance.mDetached = mDetached; |
| 94 | mInstance.mHidden = mHidden; |
| 95 | mInstance.mFragmentManager = host.mFragmentManager; |
| 96 | |
| 97 | if (FragmentManagerImpl.DEBUG) { |
| 98 | Log.v(FragmentManagerImpl.TAG, "Instantiated fragment " + mInstance); |
| 99 | } |
| 100 | } |
| 101 | mInstance.mChildNonConfig = childNonConfig; |
| 102 | return mInstance; |
| 103 | } |
| 104 | |
| 105 | @Override |
| 106 | public int describeContents() { |
| 107 | return 0; |
| 108 | } |
| 109 | |
| 110 | @Override |
| 111 | public void writeToParcel(Parcel dest, int flags) { |
| 112 | dest.writeString(mClassName); |
| 113 | dest.writeInt(mIndex); |
| 114 | dest.writeInt(mFromLayout ? 1 : 0); |
| 115 | dest.writeInt(mFragmentId); |
| 116 | dest.writeInt(mContainerId); |
| 117 | dest.writeString(mTag); |
| 118 | dest.writeInt(mRetainInstance ? 1 : 0); |
| 119 | dest.writeInt(mDetached ? 1 : 0); |
| 120 | dest.writeBundle(mArguments); |
| 121 | dest.writeInt(mHidden ? 1 : 0); |
| 122 | dest.writeBundle(mSavedFragmentState); |
| 123 | } |
| 124 | |
| 125 | public static final Parcelable.Creator<FragmentState> CREATOR = |
| 126 | new Parcelable.Creator<FragmentState>() { |
| 127 | @Override |
| 128 | public FragmentState createFromParcel(Parcel in) { |
| 129 | return new FragmentState(in); |
| 130 | } |
| 131 | |
| 132 | @Override |
| 133 | public FragmentState[] newArray(int size) { |
| 134 | return new FragmentState[size]; |
| 135 | } |
| 136 | }; |
| 137 | } |