Merge "HIC: Base on elapsed time instead of RTC" into nyc-mr1-dev (628ef54d) · Commits · e / os / android_frameworks_base

packages/SystemUI/src/com/android/systemui/classifier/HistoryEvaluator.java

+10 −5

Original line number	Diff line number	Diff line
		@@ -16,6 +16,8 @@

		package com.android.systemui.classifier;

		import android.os.SystemClock;

		import java.util.ArrayList;

		/**
		@@ -31,7 +33,7 @@ public class HistoryEvaluator {
		private long mLastUpdate;

		public HistoryEvaluator() {
		mLastUpdate = System.currentTimeMillis();
		mLastUpdate = SystemClock.elapsedRealtime();
		}

		public void addStroke(float evaluation) {
		@@ -69,15 +71,18 @@ public class HistoryEvaluator {
		}

		private void decayValue() {
		long currentTimeMillis = System.currentTimeMillis();
		long time = SystemClock.elapsedRealtime();

		if (time <= mLastUpdate) {
		return;
		}

		// All weights are multiplied by HISTORY_FACTOR after each INTERVAL milliseconds.
		float factor = (float) Math.pow(HISTORY_FACTOR,
		(float) (currentTimeMillis - mLastUpdate) / INTERVAL);
		float factor = (float) Math.pow(HISTORY_FACTOR, (time - mLastUpdate) / INTERVAL);

		decayValue(mStrokes, factor);
		decayValue(mGestureWeights, factor);
		mLastUpdate = currentTimeMillis;
		mLastUpdate = time;
		}

		private void decayValue(ArrayList<Data> list, float factor) {