e9b4b84dae
Since adding a public api for the playground app was problematic, we now keep track of onResume and onDestroy calls globally inside the app. This fixes a few bugs in cases where tasks would be hidden from the ActivityManger#.getAppTasks() method and allows us to listen for changes allowing us to do without a periodic refresh of the UI. Test: Manual Change-Id: Idb834cbdc7aad6442dd962c95b5321e1d75695fe
108 lines
3.6 KiB
Java
108 lines
3.6 KiB
Java
/*
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* Copyright (C) 2018 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.example.android.intentplayground;
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import android.app.Activity;
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import android.os.Bundle;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.LinearLayout;
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import android.widget.TextView;
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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import androidx.fragment.app.Fragment;
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import androidx.lifecycle.ViewModelProvider;
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import androidx.recyclerview.widget.LinearLayoutManager;
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import androidx.recyclerview.widget.RecyclerView;
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import java.util.List;
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/**
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* This fragment displays a hierarchy of tasks and activities in an expandable list.
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*/
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public class TreeFragment extends Fragment {
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public static final String TREE_NODE = "com.example.android.NODE_TREE";
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public static final String FRAGMENT_TITLE = "com.example.android.TREE_FRAGMENT_TITLE";
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private Activity mActivity;
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private String mTitle;
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private ViewGroup mContainer;
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private BaseActivityViewModel mViewModel;
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@Override
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public View onCreateView(LayoutInflater inflater, ViewGroup container,
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Bundle savedInstanceState) {
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Bundle args = getArguments();
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if (args != null) {
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mTitle = args.getString(FRAGMENT_TITLE);
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}
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return inflater.inflate(R.layout.fragment_tree, container, false /* attachToRoot */);
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}
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@Override
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public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
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super.onViewCreated(view, savedInstanceState);
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mViewModel = (new ViewModelProvider(getActivity(),
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new ViewModelProvider.NewInstanceFactory())).get(BaseActivityViewModel.class);
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mViewModel.getRefresh().observe(this, this::onResumeHelper);
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}
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@Override
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public void onResume() {
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super.onResume();
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mViewModel.actOnFab(BaseActivityViewModel.FabAction.Show);
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}
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private void onResumeHelper(List<Tracking.Task> tasks) {
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mActivity = getActivity();
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LinearLayout treeLayout = (LinearLayout) getView();
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TextView titleView = treeLayout.findViewById(R.id.task_tree_title);
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RecyclerView recyclerView = treeLayout.findViewById(R.id.tree_recycler);
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if (mTitle != null) {
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titleView.setText(mTitle);
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}
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displayRecycler(tasks, recyclerView);
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}
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private void displayRecycler(List<Tracking.Task> tasks, RecyclerView recyclerView) {
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recyclerView.setHasFixedSize(true);
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recyclerView.setNestedScrollingEnabled(false);
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InlineAdapter adapter = new InlineAdapter(tasks, getActivity());
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recyclerView.setAdapter(adapter);
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recyclerView.setLayoutManager(
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new LinearLayoutManager(getContext(), RecyclerView.VERTICAL, false));
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}
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/**
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* Expand a task group to show its child activities.
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*
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* @param i The index of the task to expand.
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*/
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public void openTask(int i) {
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View taskView = mContainer.getChildAt(i);
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if (taskView != null) {
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taskView.callOnClick();
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}
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}
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}
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