pull/145/head
Ben Weiss
2 years ago
commit
e949749073
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/*
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* Copyright 2022 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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* https://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.google.samples.apps.nowinandroid.di
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import android.app.Activity
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import android.util.Log
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import android.view.Window
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import androidx.metrics.performance.JankStats
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import dagger.Module
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import dagger.Provides
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import dagger.hilt.InstallIn
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import dagger.hilt.android.components.ActivityComponent
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import java.util.concurrent.Executor
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import kotlinx.coroutines.Dispatchers
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import kotlinx.coroutines.asExecutor
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@Module
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@InstallIn(ActivityComponent::class)
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object JankStatsModule {
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@Provides
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fun providesOnFrameListener(): JankStats.OnFrameListener {
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return JankStats.OnFrameListener { frameData ->
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// Make sure to only log janky frames.
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if (frameData.isJank) {
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// We're currently logging this but would better report it to a backend.
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Log.v("NiA Jank", frameData.toString())
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}
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}
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}
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@Provides
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fun providesWindow(activity: Activity): Window {
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return activity.window
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}
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@Provides
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fun providesDefaultExecutor(): Executor {
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return Dispatchers.Default.asExecutor()
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}
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@Provides
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fun providesJankStats(
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window: Window,
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executor: Executor,
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frameListener: JankStats.OnFrameListener
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): JankStats {
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return JankStats.createAndTrack(window, executor, frameListener)
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}
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}
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@ -0,0 +1,73 @@
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/*
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* Copyright 2022 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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* https://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.google.samples.apps.nowinandroid.core.ui
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import androidx.compose.runtime.Composable
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import androidx.compose.runtime.DisposableEffect
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import androidx.compose.runtime.DisposableEffectResult
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import androidx.compose.runtime.DisposableEffectScope
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import androidx.compose.runtime.LaunchedEffect
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import androidx.compose.runtime.remember
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import androidx.compose.ui.platform.LocalView
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import androidx.metrics.performance.PerformanceMetricsState
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import androidx.metrics.performance.PerformanceMetricsState.MetricsStateHolder
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import kotlinx.coroutines.CoroutineScope
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/**
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* Retrieves [PerformanceMetricsState.MetricsStateHolder] from current [LocalView] and
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* remembers it until the View changes.
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* @see PerformanceMetricsState.getForHierarchy
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*/
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@Composable
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fun rememberMetricsStateHolder(): MetricsStateHolder {
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val localView = LocalView.current
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return remember(localView) {
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PerformanceMetricsState.getForHierarchy(localView)
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}
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}
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/**
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* Convenience function to work with [PerformanceMetricsState] state. The side effect is
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* re-launched if any of the [keys] value is not equal to the previous composition.
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* @see JankMetricDisposableEffect if you need to work with DisposableEffect to cleanup added state.
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*/
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@Composable
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fun JankMetricEffect(
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vararg keys: Any?,
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reportMetric: suspend CoroutineScope.(state: MetricsStateHolder) -> Unit
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) {
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val metrics = rememberMetricsStateHolder()
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LaunchedEffect(metrics, *keys) {
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reportMetric(metrics)
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}
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}
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/**
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* Convenience function to work with [PerformanceMetricsState] state that needs to be cleaned up.
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* The side effect is re-launched if any of the [keys] value is not equal to the previous composition.
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*/
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@Composable
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fun JankMetricDisposableEffect(
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vararg keys: Any?,
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reportMetric: DisposableEffectScope.(state: MetricsStateHolder) -> DisposableEffectResult
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) {
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val metrics = rememberMetricsStateHolder()
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DisposableEffect(metrics, *keys) {
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reportMetric(this, metrics)
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}
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}
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