1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file 5 * except in compliance with the License. You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software distributed under the 10 * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 11 * KIND, either express or implied. See the License for the specific language governing 12 * permissions and limitations under the License. 13 */ 14 15 package com.android.systemui.fragments; 16 17 import android.content.Context; 18 import android.content.res.Configuration; 19 import android.os.Bundle; 20 import android.os.Handler; 21 import android.util.ArrayMap; 22 import android.util.Log; 23 import android.view.View; 24 25 import com.android.systemui.ConfigurationChangedReceiver; 26 import com.android.systemui.Dumpable; 27 import com.android.systemui.SystemUI; 28 import com.android.systemui.SystemUIApplication; 29 30 import java.io.FileDescriptor; 31 import java.io.PrintWriter; 32 33 /** 34 * Holds a map of root views to FragmentHostStates and generates them as needed. 35 * Also dispatches the configuration changes to all current FragmentHostStates. 36 */ 37 public class FragmentService implements ConfigurationChangedReceiver, Dumpable { 38 39 private static final String TAG = "FragmentService"; 40 41 private final ArrayMap<View, FragmentHostState> mHosts = new ArrayMap<>(); 42 private final Handler mHandler = new Handler(); 43 private final Context mContext; 44 45 public FragmentService(Context context) { 46 mContext = context; 47 } 48 49 public FragmentHostManager getFragmentHostManager(View view) { 50 View root = view.getRootView(); 51 FragmentHostState state = mHosts.get(root); 52 if (state == null) { 53 state = new FragmentHostState(root); 54 mHosts.put(root, state); 55 } 56 return state.getFragmentHostManager(); 57 } 58 59 public void destroyAll() { 60 for (FragmentHostState state : mHosts.values()) { 61 state.mFragmentHostManager.destroy(); 62 } 63 } 64 65 @Override 66 public void onConfigurationChanged(Configuration newConfig) { 67 for (FragmentHostState state : mHosts.values()) { 68 state.sendConfigurationChange(newConfig); 69 } 70 } 71 72 @Override 73 public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 74 pw.println("Dumping fragments:"); 75 for (FragmentHostState state : mHosts.values()) { 76 state.mFragmentHostManager.getFragmentManager().dump(" ", fd, pw, args); 77 } 78 } 79 80 private class FragmentHostState { 81 private final View mView; 82 83 private FragmentHostManager mFragmentHostManager; 84 85 public FragmentHostState(View view) { 86 mView = view; 87 mFragmentHostManager = new FragmentHostManager(mContext, FragmentService.this, mView); 88 } 89 90 public void sendConfigurationChange(Configuration newConfig) { 91 mHandler.post(() -> handleSendConfigurationChange(newConfig)); 92 } 93 94 public FragmentHostManager getFragmentHostManager() { 95 return mFragmentHostManager; 96 } 97 98 private void handleSendConfigurationChange(Configuration newConfig) { 99 mFragmentHostManager.onConfigurationChanged(newConfig); 100 } 101 } 102 } 103
