Build version 1.1.0 release

 - New charting implementation
 - Add license page
 - Add some documentation
 - Some visual fixes and tweaks

android/build.gradle

@@ -5,7 +5,7 @@ buildscript {
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.6.1'
+        classpath 'com.android.tools.build:gradle:4.0.1'
     }
 }
 

android/gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Mon Apr 06 13:07:01 IST 2020
+#Tue Jul 14 15:44:44 IST 2020
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.4-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-all.zip

lib/data/all_data.dart

@@ -34,25 +34,21 @@ final List<Map<String, dynamic>> devDetails = [
   {
     'Name': 'ANURAG ROY',
     'Github': 'RoyARG02',
-    'Bio': 'Programming language nomad, and a Flutter developer.',
     'Twitter': '_royarg'
   },
   {
     'Name': 'AYUSH THAKUR',
     'Github': 'ayulockin',
-    'Bio': 'Deep Learning for Computer Vision | Computer Vision for Robotics',
     'Twitter': 'ayushthakur0'
   },
   {
     'Name': 'SNEHANGSHU BHATTACHARYA',
     'Github': 'forkbomb-666',
-    'Bio': 'Linux | Bigdata(Hadoop) | DIY Electronics | Robotics',
     'Twitter': 'snehangshu_'
   },
   {
     'Name': 'ARITRA ROY GOSTHIPATY',
     'Github': 'ariG23498',
-    'Bio': '| Flutter | Android | Algorithms | Digital Signal Processing |',
     'Twitter': 'ariG23498'
   }
 ];

lib/data_providers/analysis_current_value_provider.dart

@@ -0,0 +1,38 @@
+import 'package:flutter/foundation.dart';
+
+import 'package:soil_moisture_app/ui/analysis_graph.dart';
+import 'package:soil_moisture_app/utils/date_func.dart';
+
+/// Provides the current value selected in the [AnalysisGraph].
+class AnalysisCurrentValueProvider with ChangeNotifier {
+  DataPoint current;
+
+  AnalysisCurrentValueProvider();
+
+  /// Initailizes the provider, with a list of data values.
+  /// 
+  /// Calculates the current value taking the last value of the
+  /// list.
+  AnalysisCurrentValueProvider.init(List<dynamic> data)
+      : current = DataPoint(
+          DateTime(date.year, date.month, date.day, data.length - 1),
+          data.last,
+        );
+
+  /// Updates the current value.
+  /// 
+  /// Used in conjunction with [DataProvider] as [ProxyProvider].
+  void update(List<dynamic> data) {
+    current = DataPoint(
+      DateTime(date.year, date.month, date.day, data.length - 1),
+      data.last,
+    );
+    notifyListeners();
+  }
+
+  /// Changes the currently selected value.
+  changeValue(DataPoint current) {
+    this.current = current;
+    notifyListeners();
+  }
+}

lib/data_providers/analysis_data_provider.dart

@@ -0,0 +1,29 @@
+import 'package:flutter/foundation.dart';
+
+/// Contains the current values alongwith its unit to be displayed
+/// in [AnalysisGraph].
+class AnalysisDataProvider with ChangeNotifier {
+  List<dynamic> data;
+  String unit;
+
+  AnalysisDataProvider();
+
+  /// Initializes the provider given some data and its unit.
+  void init(List<dynamic> newData, String unit) {
+    data = newData;
+    this.unit = unit;
+  }
+
+  /// Same as [AnalysisDataProvider.init] but notifies dependant widgets.
+  void changeData(List<dynamic> newData, String unit) {
+    data = newData;
+    this.unit = unit;
+    notifyListeners();
+  }
+
+  /// "Updates", which isn't saying much considering it only notifies dependant
+  /// widgets. Used in conjunction with [SelectedCardState] as a [ProxyProvider].
+  void update() {
+    notifyListeners();
+  }
+}

lib/main.dart

@@ -3,6 +3,9 @@ import 'package:flutter/material.dart';
 // * External Packages import
 import 'package:provider/provider.dart';
 
+// * Data providers import
+import 'package:soil_moisture_app/data_providers/analysis_data_provider.dart';
+
 // * Prefs import
 import 'package:soil_moisture_app/prefs/user_prefs.dart';
 
@@ -60,14 +63,19 @@ class Root extends StatelessWidget {
 class Home extends StatefulWidget {
   final List<Widget> _tabPages = [
     Overview(),
-    Analysis(),
+    ChangeNotifierProxyProvider<SelectedCardState, AnalysisDataProvider>(
+      create: (context) => AnalysisDataProvider(),
+      update: (context, selCard, dataProvider) => dataProvider..update(),
+      child: Analysis(),
+    ),
   ];
   @override
   @override
   _HomeState createState() => _HomeState();
 }
 
-class _HomeState extends State<Home> with SingleTickerProviderStateMixin {
+class _HomeState extends State<Home>
+    with SingleTickerProviderStateMixin, AutomaticKeepAliveClientMixin {
   TabController _controller;
   void initState() {
     super.initState();
@@ -97,6 +105,7 @@ class _HomeState extends State<Home> with SingleTickerProviderStateMixin {
 
   @override
   Widget build(BuildContext context) {
+    super.build(context);
     print(appWidth(context));
     return WillPopScope(
       onWillPop: _popScopeInvoke,
@@ -153,4 +162,7 @@ class _HomeState extends State<Home> with SingleTickerProviderStateMixin {
       ),
     );
   }
+
+  @override
+  bool get wantKeepAlive => true;
 }