获取Android界面性能数据的快捷方法

//调试界面性能时使用,可打印关键的layout耗时，使用完毕需删除
fun Activity.printPerformanceForLayout(tag: String = "performance") {
    val handlerThread = HandlerThread("FrameMetrics")
    handlerThread.start()
    val handler = Handler(handlerThread.looper)
    if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.N) {
        window.addOnFrameMetricsAvailableListener({ _, frameMetrics, _ ->
            val frameMetricsCopy = FrameMetrics(frameMetrics)
            //返回的是纳秒
            val layoutMeasureDuratiOnNs= frameMetricsCopy.getMetric(FrameMetrics.LAYOUT_MEASURE_DURATION)
            //多数情况下更习惯于ms
            val layoutMeasureDuratiOnMs= layoutMeasureDurationNs.toDouble() / 1000000.toDouble()
            //如果有超过16ms的输出 那就要考虑你的界面是否需要进行优化了
            Log.v("wuyue", "layoutMeasureDurationMs:" + layoutMeasureDurationMs)
        }, handler)
    }
}

adb shell am start-activity -W -n 包名/activity名称

adb shell am start-activity -W -n 包名/activity名称 | grep "TotalTime" | cut -d ' ' -f 2

adb shell am start-activity -S -W -R 100 -n 包名/activity名称

for i in `seq 1 100`
do
  adb shell am force-stop com.vivo.space
  sleep 2
  adb shell am start-activity -W -n 包名/activity名称 | grep "TotalTime" | cut -d ' ' -f 2
done