diff --git a/app/app.iml b/app/app.iml
index afa3736..e02613a 100644
--- a/app/app.iml
+++ b/app/app.iml
@@ -87,6 +87,7 @@
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/exploded-aar/com.android.support/recyclerview-v7/23.2.1/jars" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/exploded-aar/com.android.support/support-v4/23.2.1/jars" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/exploded-aar/com.android.support/support-vector-drawable/23.2.1/jars" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/exploded-aar/com.jjoe64/graphview/4.0.1/jars" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/exploded-aar/com.survivingwithandroid/weatherlib/1.6.0/jars" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/exploded-aar/com.survivingwithandroid/weatherlib_okhttpclient/1.6.0/jars" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/exploded-aar/org.osmdroid/osmdroid-android/5.1/jars" />
@@ -111,6 +112,7 @@
     <orderEntry type="sourceFolder" forTests="false" />
     <orderEntry type="library" exported="" name="weatherlib_okhttpclient-1.6.0" level="project" />
     <orderEntry type="library" exported="" name="gson-2.4" level="project" />
+    <orderEntry type="library" exported="" name="graphview-4.0.1" level="project" />
     <orderEntry type="library" exported="" name="design-23.2.1" level="project" />
     <orderEntry type="library" exported="" name="weatherlib-1.6.0" level="project" />
     <orderEntry type="library" exported="" name="recyclerview-v7-23.2.1" level="project" />
diff --git a/app/build.gradle b/app/build.gradle
index e16534b..0333580 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -27,6 +27,7 @@
     compile 'com.survivingwithandroid:weatherlib:1.6.0'
     compile 'com.survivingwithandroid:weatherlib_okhttpclient:1.6.0'
     compile 'com.squareup.okhttp:okhttp:2.0.+'
+    compile 'com.jjoe64:graphview:4.0.1'
     compile (name:'osmbonuspack_v5.7', ext:'aar')
     //compile 'org.slf4j:slf4j-log4j12:1.7.12'
     compile 'org.osmdroid:osmdroid-android:5.1@aar'
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 6faee34..a548457 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -202,6 +202,7 @@
         <item>- osmdroid: https://github.com/osmdroid/osmdroid</item>
         <item>- osmbonuspack: https://github.com/MKergall/osmbonuspack/</item>
         <item>- icons8: https://icons8.com/</item>
+        <item>- GraphView: https://github.com/jjoe64/GraphView</item>
     </string-array>
     <string-array name="fountain_size_dialog_options">
         <item>Small</item>