Add double seek bar for price range filtering

app/build.gradle

@@ -32,4 +32,5 @@ dependencies {
     compile 'com.squareup.retrofit2:converter-gson:2.1.0'
     compile files('libs/picasso-2.5.2.jar')
     compile 'com.android.support:support-v4:23.2.1'
+    compile 'org.florescu.android.rangeseekbar:rangeseekbar-library:0.3.0'
 }

app/src/main/java/com/testapp/NavDrawerActivity.java

@@ -32,6 +32,8 @@ import android.widget.Toast;
 import com.testapp.entities.Dish;
 import com.testapp.entities.Filter;
 
+import org.florescu.android.rangeseekbar.RangeSeekBar;
+
 import java.util.ArrayList;
 import java.util.List;
 
@@ -257,7 +259,8 @@ public class NavDrawerActivity extends AppCompatActivity implements NavigationVi
     }
 
     public void refreshDishes() {
-        adapter.filter(query, getChecked(R.id.type_checkboxes), getChecked(R.id.cuisine_checkboxes), getChecked(R.id.location_checkboxes), 0, 1000);
+        RangeSeekBar priceRangeBar = (RangeSeekBar)findViewById(R.id.price_range_bar);
+        adapter.filter(query, getChecked(R.id.type_checkboxes), getChecked(R.id.cuisine_checkboxes), getChecked(R.id.location_checkboxes), priceRangeBar.getSelectedMinValue().doubleValue(), priceRangeBar.getSelectedMaxValue().doubleValue());
         adapter.notifyDataSetChanged();
         System.out.println(adapter.filteredDishes.size());
     }

app/src/main/res/layout/activity_nav_drawer.xml

@@ -2,6 +2,7 @@
 <android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
+    xmlns:rsb="http://schemas.android.com/apk/res-auto"
     android:id="@+id/drawer_layout"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
@@ -140,13 +141,13 @@
                     android:paddingTop="5dp"
                     android:paddingBottom="5dp"/>
 
-                <SeekBar
+                <org.florescu.android.rangeseekbar.RangeSeekBar
+                    android:id="@+id/price_range_bar"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
-                    android:paddingLeft="20dip"
-                    android:paddingRight="20dip"
-                    android:max="150"
-                    android:progress="1" />
+                    rsb:textAboveThumbsColor="#000000"
+                    rsb:absoluteMaxValue="300"
+                    rsb:absoluteMinValue="0"/>
 
                 <TextView
                     android:typeface="monospace"

app/src/main/res/values/attrs.xml

+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <declare-styleable name="RangeSeekBar">
+        <attr name="absoluteMinValue" format="integer|float"/>
+        <attr name="absoluteMaxValue" format="integer|float"/>
+        <attr name="singleThumb" format="boolean"/>
+    </declare-styleable>
+
+</resources>
\ No newline at end of file

app/src/main/res/values/strings.xml

@@ -21,6 +21,8 @@
     <string name="drawer_4">Price Range</string>
     <string name="drawer_5">Locations</string>
     <string name="apply_filter">Apply Filters</string>
+    <string name="min_price">Minimum</string>
+    <string name="max_price">Maximum</string>
 
     <string name="navigation_drawer_open">Open navigation drawer</string>
     <string name="navigation_drawer_close">Close navigation drawer</string>