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TestFragment.java
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TestFragment.java
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/**
* Copyright 2021 Google Inc. All Rights Reserved.
*
* 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 com.google.firebase.example.perfmon;
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.os.Handler;
import android.os.Looper;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewTreeObserver;
import androidx.annotation.NonNull;
import androidx.fragment.app.Fragment;
import com.google.firebase.perf.FirebasePerformance;
import com.google.firebase.perf.metrics.Trace;
public class TestFragment extends Fragment {
// TODO (1): Declare the Trace variable.
@Override
public void onAttach(@NonNull Context context) {
super.onAttach(context);
// TODO (2): Start trace recording as soon as the Fragment is attached to its host Activity.
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_test, container, false);
}
@Override
public void onViewCreated(@NonNull View mainView, Bundle savedInstanceState) {
super.onViewCreated(mainView, savedInstanceState);
Activity parentActivity = getActivity();
// Load some images
TestUtils.loadImage(parentActivity, mainView.findViewById(R.id.img_top), TestUtils.FIREBASE_LOGO_ANIMATION_GIF);
TestUtils.loadImage(parentActivity, mainView.findViewById(R.id.img_center), TestUtils.FIREBASE_SPARKY_PINEAPPLE_GIF);
// Performing some CPU intensive work on the Main Thread to mimic slow loading
TestUtils.performIntensiveIoOperations(parentActivity);
// TODO (3): Register the callback to listen for first frame rendering (see
// "OnFirstDrawCallback" in FirstDrawListener) and stop the trace when View drawing is
// finished.
}
}