Merge branch 'master' into cjk_withings_device_integration

* Implements foreground task detector.

AndroidManifest.xml

@@ -1,10 +1,13 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.audacious_software.pdk.passivedatakit">
+    package="com.audacious_software.pdk.passivedatakit"
+    xmlns:tools="http://schemas.android.com/tools">
     <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
     <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
     <uses-permission android:name="com.google.android.gms.permission.ACTIVITY_RECOGNITION" />
     <uses-permission android:name="android.permission.READ_CALL_LOG" />
     <uses-permission android:name="android.permission.READ_SMS" />
+    <uses-permission android:name="android.permission.GET_TASKS" />
+    <uses-permission android:name="android.permission.PACKAGE_USAGE_STATS" tools:ignore="ProtectedPermissions" />
     <application android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name" android:theme="@style/AppTheme">

build.gradle

@@ -16,6 +16,7 @@ buildscript {
 repositories {
     jcenter()
     maven { url "https://jitpack.io" }
+    maven { url 'https://dl.bintray.com/rvalerio/maven' }
     flatDir{
         dirs 'libs'
     }
@@ -28,7 +29,7 @@ android {
     useLibrary 'org.apache.http.legacy'
 
     defaultConfig {
-        minSdkVersion 19
+        minSdkVersion 18
         targetSdkVersion 25
         versionCode 1
         versionName "1.0"
@@ -54,18 +55,19 @@ android {
         compile 'com.android.support:appcompat-v7:25.3.1'
         compile 'com.android.support:recyclerview-v7:25.3.1'
         compile 'com.android.support:cardview-v7:25.3.1'
-        compile 'com.google.android.gms:play-services-location:10.2.1'
-        compile 'com.google.android.gms:play-services-maps:10.2.1'
-        compile 'com.google.android.gms:play-services-nearby:10.2.1'
-        compile 'com.google.android.gms:play-services-places:10.2.1'
-        compile 'com.google.android.gms:play-services-awareness:10.2.1'
+        compile 'com.google.android.gms:play-services-location:10.2.4'
+        compile 'com.google.android.gms:play-services-maps:10.2.4'
+        compile 'com.google.android.gms:play-services-nearby:10.2.4'
+        compile 'com.google.android.gms:play-services-places:10.2.4'
+        compile 'com.google.android.gms:play-services-awareness:10.2.4'
         compile 'com.google.maps.android:android-maps-utils:0.4'
         compile 'com.squareup.okhttp3:okhttp:3.2.0'
         compile 'commons-io:commons-io:2.4'
         compile 'commons-codec:commons-codec:1.10'
         compile 'org.apache.commons:commons-lang3:3.4'
         compile 'com.fasterxml.jackson.core:jackson-core:2.7.3'
         compile 'com.github.philjay:mpandroidchart:v3.0.1'
+        compile 'com.rvalerio:fgchecker:1.0.1'
     }
 
     buildTypes {

res/layout/card_generator_app_event.xml

@@ -25,7 +25,7 @@
                     android:layout_width="24dp"
                     android:layout_height="24dp"
                     android:layout_marginRight="8dp" />
-                <TextView android:text="@string/generator_app_event"
+                <TextView android:text="@string/generator_app_events"
                     android:gravity="center_vertical|start"
                     android:layout_width="0dp"
                     android:layout_height="24dp"

res/values/databases.xml

@@ -27,4 +27,8 @@
     <!-- Battery Generator -->
     <string name="pdk_generator_device_battery_create_history_table">CREATE TABLE history(_id INTEGER PRIMARY KEY AUTOINCREMENT, fetched INTEGER, transmitted INTEGER, observed INTEGER, health TEXT, level INTERGER, plugged TEXT, present INTEGER, scale INTEGER, temperature INTEGER, voltage INTEGER, technology TEXT, status TEXT);</string>
 
+    <!-- Foreground Applications -->
+    <string name="pdk_generator_foreground_applications_create_history_table">CREATE TABLE history(_id INTEGER PRIMARY KEY AUTOINCREMENT, fetched INTEGER, transmitted INTEGER, observed INTEGER, application TEXT);</string>
+    <string name="pdk_generator_foreground_applications_history_table_add_duration">ALTER TABLE history ADD duration REAL;</string>
+
 </resources>

res/values/diagnostics.xml

@@ -19,4 +19,7 @@
 
     <string name="diagnostic_withings_auth_required_title">Access to Withing Account Required</string>
     <string name="diagnostic_withings_auth_required">Permission is required to fetch data from the Withings server. Please grant this application the requested permissions.</string>
+
+    <string name="diagnostic_usage_stats_permission_required_title">App Usage Data Permission Required</string>
+    <string name="diagnostic_usage_stats_permission_required">This app requires access to app usage data from your device\'s settings.</string>
 </resources>

res/values/generators.xml

@@ -149,6 +149,13 @@
     <color name="generator_battery_header">#1B5E20</color>
 
     <!-- App Event History -->
-    <string name="generator_app_event">App Event History</string>
+    <string name="generator_app_events">App Events History</string>
     <string name="message_generator_device_app_event_empty">No app events have been logged yet.</string>
+
+    <!-- Foreground Application -->
+    <string name="generator_foreground_application">Foreground Applications</string>
+    <string name="message_generator_foreground_applications_empty">No application launches have been logged yet.</string>
+    <string name="generator_foreground_application_top_apps">Most Used (Last 24 Hours)</string>
+    <string name="generator_foreground_application_recent_apps">Recently Used</string>
+    <string name="generator_foreground_application_app_name_duration">%1$s: %2$.0fm</string>
 </resources>