Merge pull request #1 from shree-vastava/fix/chart_description_label

The text for chart description label was missing in the chart.

Author: shree-vastava

app/build.gradle

@@ -18,7 +18,7 @@ android {
         minSdkVersion 24
         targetSdkVersion 30
         versionCode 1
-        versionName "1.0"
+        versionName "1.1.0"
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     }

app/src/main/java/com/acous/airqualityindex/ui/ChartActivity.kt

@@ -11,6 +11,7 @@ import androidx.lifecycle.Observer
 import com.acous.airqualityindex.R
 import com.acous.airqualityindex.data.CityAqi
 import com.acous.airqualityindex.util.Status
+import com.github.mikephil.charting.components.Description
 import com.github.mikephil.charting.components.XAxis
 import com.github.mikephil.charting.data.Entry
 import com.github.mikephil.charting.data.LineData
@@ -123,6 +124,9 @@ class ChartActivity : AppCompatActivity() {
         chart_aqi.axisRight.isEnabled = false
         chart_aqi.xAxis.textSize = 8f
         chart_aqi.legend.isEnabled = false
+        var desc = Description()
+        desc.text = """${getString(R.string.chart_desc)} ${cityAqi.city}"""
+        chart_aqi.description = desc
         chart_aqi.setTouchEnabled(true)
         chart_aqi.xAxis.position = (XAxis.XAxisPosition.BOTTOM)
         chart_aqi.setDrawGridBackground(false)

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

@@ -6,6 +6,7 @@
     <string name="seconds_remaining">Seconds for next value</string>
     <string name="interval_label">Refresh Seconds</string>
     <string name="refresh">Refresh</string>
+    <string name="chart_desc">Air quality index of </string>
     <string name="next_interval">The interval will be applicable from next cycle</string>
 
     <string-array name="seconds_interval">