diff options
author | Eric Erfanian <erfanian@google.com> | 2017-02-22 16:32:36 -0800 |
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committer | Eric Erfanian <erfanian@google.com> | 2017-03-01 09:56:52 -0800 |
commit | ccca31529c07970e89419fb85a9e8153a5396838 (patch) | |
tree | a7034c0a01672b97728c13282a2672771cd28baa /java/com/android/incallui/answer/impl/classifier/HistoryEvaluator.java | |
parent | e7ae4624ba6f25cb8e648db74e0d64c0113a16ba (diff) |
Update dialer sources.
Test: Built package and system image.
This change clobbers the old source, and is an export
from an internal Google repository.
The internal repository was forked form Android in March,
and this change includes modifications since then, to
near the v8 release.
Since the fork, we've moved code from monolithic to independent modules. In addition,
we've switched to Blaze/Bazel as the build sysetm. This export, however, still uses make.
New dependencies have been added:
- Dagger
- Auto-Value
- Glide
- Libshortcutbadger
Going forward, development will still be in Google3, and the Gerrit release
will become an automated export, with the next drop happening in ~ two weeks.
Android.mk includes local modifications from ToT.
Abridged changelog:
Bug fixes
● Not able to mute, add a call when using Phone app in multiwindow mode
● Double tap on keypad triggering multiple key and tones
● Reported spam numbers not showing as spam in the call log
● Crash when user tries to block number while Phone app is not set as default
● Crash when user picks a number from search auto-complete list
Visual Voicemail (VVM) improvements
● Share Voicemail audio via standard exporting mechanisms that support file attachment
(email, MMS, etc.)
● Make phone number, email and web sites in VVM transcript clickable
● Set PIN before declining VVM Terms of Service {Carrier}
● Set client type for outbound visual voicemail SMS {Carrier}
New incoming call and incall UI on older devices
(Android M)
● Updated Phone app icon
● New incall UI (large buttons, button labels)
● New and animated Answer/Reject gestures
Accessibility
● Add custom answer/decline call buttons on answer screen for touch exploration
accessibility services
● Increase size of touch target
● Add verbal feedback when a Voicemail fails to load
● Fix pressing of Phone buttons while in a phone call using Switch Access
● Fix selecting and opening contacts in talkback mode
● Split focus for ‘Learn More’ link in caller id & spam to help distinguish similar text
Other
● Backup & Restore for App Preferences
● Prompt user to enable Wi-Fi calling if the call ends due to out of service and Wi-Fi is
connected
● Rename “Dialpad” to “Keypad”
● Show "Private number" for restricted calls
● Delete unused items (vcard, add contact, call history) from Phone menu
Change-Id: I2a7e53532a24c21bf308bf0a6d178d7ddbca4958
Diffstat (limited to 'java/com/android/incallui/answer/impl/classifier/HistoryEvaluator.java')
-rw-r--r-- | java/com/android/incallui/answer/impl/classifier/HistoryEvaluator.java | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/java/com/android/incallui/answer/impl/classifier/HistoryEvaluator.java b/java/com/android/incallui/answer/impl/classifier/HistoryEvaluator.java new file mode 100644 index 000000000..3f302c65f --- /dev/null +++ b/java/com/android/incallui/answer/impl/classifier/HistoryEvaluator.java @@ -0,0 +1,115 @@ +/* + * Copyright (C) 2015 The Android Open Source Project + * + * 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.android.incallui.answer.impl.classifier; + +import android.os.SystemClock; + +import java.util.ArrayList; + +/** + * Holds the evaluations for ended strokes and gestures. These values are decreased through time. + */ +class HistoryEvaluator { + private static final float INTERVAL = 50.0f; + private static final float HISTORY_FACTOR = 0.9f; + private static final float EPSILON = 1e-5f; + + private final ArrayList<Data> mStrokes = new ArrayList<>(); + private final ArrayList<Data> mGestureWeights = new ArrayList<>(); + private long mLastUpdate; + + public HistoryEvaluator() { + mLastUpdate = SystemClock.elapsedRealtime(); + } + + public void addStroke(float evaluation) { + decayValue(); + mStrokes.add(new Data(evaluation)); + } + + public void addGesture(float evaluation) { + decayValue(); + mGestureWeights.add(new Data(evaluation)); + } + + /** Calculates the weighted average of strokes and adds to it the weighted average of gestures */ + public float getEvaluation() { + return weightedAverage(mStrokes) + weightedAverage(mGestureWeights); + } + + private float weightedAverage(ArrayList<Data> list) { + float sumValue = 0.0f; + float sumWeight = 0.0f; + int size = list.size(); + for (int i = 0; i < size; i++) { + Data data = list.get(i); + sumValue += data.evaluation * data.weight; + sumWeight += data.weight; + } + + if (sumWeight == 0.0f) { + return 0.0f; + } + + return sumValue / sumWeight; + } + + private void decayValue() { + 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, (time - mLastUpdate) / INTERVAL); + + decayValue(mStrokes, factor); + decayValue(mGestureWeights, factor); + mLastUpdate = time; + } + + private void decayValue(ArrayList<Data> list, float factor) { + int size = list.size(); + for (int i = 0; i < size; i++) { + list.get(i).weight *= factor; + } + + // Removing evaluations with such small weights that they do not matter anymore + while (!list.isEmpty() && isZero(list.get(0).weight)) { + list.remove(0); + } + } + + private boolean isZero(float x) { + return x <= EPSILON && x >= -EPSILON; + } + + /** + * For each stroke it holds its initial value and the current weight. Initially the weight is set + * to 1.0 + */ + private static class Data { + public float evaluation; + public float weight; + + public Data(float evaluation) { + this.evaluation = evaluation; + weight = 1.0f; + } + } +} |