June 13, 2016

CS442 Project Final Presentation

T0303

Bohun Seo, Hayeon Lee, Insu Jang

Introduction

3 / totalS.U.N.S.H.I.N.E.

Introduction

At Last!

4 / totalS.U.N.S.H.I.N.E.

Introduction

What is sunshine?

Prevent temptations

by

Providing flexibility and motivation

to

Enhance user’s efficiency of study

5 / totalS.U.N.S.H.I.N.E.

Introduction

What is sunshine?

To activate sunshine mode.

User just presses the button. Pre-configuration is unnecessary.

6 / totalS.U.N.S.H.I.N.E.

Introduction

What is sunshine?

In sunshine mode, launcher is changed

7 / totalS.U.N.S.H.I.N.E.

Introduction

What is sunshine?

Allowed apps can only be used basically

This classification is performed automatically by app’s category

8 / totalS.U.N.S.H.I.N.E.

Introduction

What is sunshine?

User can use our dedicated browser in sunshine mode to search.

Our browser performs semantic analysis and blocks page by category.

FFT in wikipedia Overwatch review

9 / totalS.U.N.S.H.I.N.E.

Introduction

What is sunshine?

User can acquire the points by remaining the sunshine mode

User consumes points for two purposes

Level up

Use blocked apps

Sunshine Components

1. Overall Feature

2. System Service

3. Dedicated Launcher

4. Dedicated Browser

11 / totalS.U.N.S.H.I.N.E.

Overall Feature

On Nexus 6

With AOSP 5.1 lollipop

12 / totalS.U.N.S.H.I.N.E.

Overall Feature

Other System Services

(Modified)

PAService

Dedicated

Browser

Dedicated

Launcher

(Sunshine mode)

framework

Others

Launchers

(Normal mode)

user

All appsBlocked

apps

Allowed

apps

Search

Server

Search

Server

PhoneInternet

full functionalities

limited functionalitiesRequest/Respond

Control other services

Semantic analysis

Google

Play

Google

PlayApp categorizing

13 / totalS.U.N.S.H.I.N.E.

System Service

System Service - Architecture

PAService

(API provider)

PackageManagerService

(App visibility control)

ActivityManager

(App execution control)

NotificationManagerService

(Notification control)

ActivityStack

(Foreground app control)

AppInfoManager

(Blocked / Allow apps

management)

AsyncCategorizing

(Update App’s Category )

PhoneWindowManager

(Launcher init control)

14 / totalS.U.N.S.H.I.N.E.

System Service

System Service – App categorizing

PAServicePackageManagerService

AppInfoManager

AsyncCategorizing

1. Application Installed

2. Request3. Finish callback

4. Save

App categorizing is performed only once per app

15 / totalS.U.N.S.H.I.N.E.

System Service

System Service – App categorizing

com.android.mms

(communication?)

com.concentriclivers.

mms.com.android.m

ms

Communication

Find the most similar app and use that category

Categorize app with exact package name

If it doesn’t exist, use similar name

16 / totalS.U.N.S.H.I.N.E.

System Service

System Service – Block Policy

Use pre-defined category tables

Exclude categories of unfamiliar with study

17 / totalS.U.N.S.H.I.N.E.

System Service

System Service – Exploiting App-related function call

PackageManagerService

ActivityManagerService

startActivity..

startActivity.. resolveIntent

queryIntentActivities

getInstalledApplications

Intent to specific Info by priority

ActivtyStackSupervisor

startActivityLocked

API call from general situations

Query from others

Execution Control

App visibility control

- Launcher selection

- Hide our apps

Instantiate Task and Load it Stack

“Rise above the storm,and you will find the sunshine.”