diff --git a/MPChartLib/src/main/java/com/github/mikephil/charting/charts/LineChart.java b/MPChartLib/src/main/java/com/github/mikephil/charting/charts/LineChart.java
deleted file mode 100644
index db0536db27..0000000000
--- a/MPChartLib/src/main/java/com/github/mikephil/charting/charts/LineChart.java
+++ /dev/null
@@ -1,77 +0,0 @@
-
-package com.github.mikephil.charting.charts;
-
-import android.content.Context;
-import android.util.AttributeSet;
-
-import com.github.mikephil.charting.data.LineData;
-import com.github.mikephil.charting.formatter.IAxisValueFormatter;
-import com.github.mikephil.charting.interfaces.dataprovider.LineDataProvider;
-import com.github.mikephil.charting.renderer.LineChartRenderer;
-
-import java.util.Locale;
-
-/**
- * Chart that draws lines, surfaces, circles, ...
- *
- * @author Philipp Jahoda
- */
-public class LineChart extends BarLineChartBase<LineData> implements LineDataProvider {
-
-    public LineChart(Context context) {
-        super(context);
-    }
-
-    public LineChart(Context context, AttributeSet attrs) {
-        super(context, attrs);
-    }
-
-    public LineChart(Context context, AttributeSet attrs, int defStyle) {
-        super(context, attrs, defStyle);
-    }
-
-    @Override
-    protected void init() {
-        super.init();
-
-        mRenderer = new LineChartRenderer(this, mAnimator, mViewPortHandler);
-    }
-
-    @Override
-    public LineData getLineData() {
-        return mData;
-    }
-
-    @Override
-    protected void onDetachedFromWindow() {
-        // releases the bitmap in the renderer to avoid oom error
-        if (mRenderer != null && mRenderer instanceof LineChartRenderer) {
-            ((LineChartRenderer) mRenderer).releaseBitmap();
-        }
-        super.onDetachedFromWindow();
-    }
-
-    @Override
-    public String getAccessibilityDescription() {
-        LineData lineData = getLineData();
-
-        int numberOfPoints = lineData.getEntryCount();
-
-        // Min and max values...
-        IAxisValueFormatter yAxisValueFormmater = getAxisLeft().getValueFormatter();
-        String minVal = yAxisValueFormmater.getFormattedValue(lineData.getYMin(), null);
-        String maxVal = yAxisValueFormmater.getFormattedValue(lineData.getYMax(), null);
-
-        // Data range...
-        IAxisValueFormatter xAxisValueFormatter = getXAxis().getValueFormatter();
-        String minRange = xAxisValueFormatter.getFormattedValue(lineData.getXMin(), null);
-        String maxRange = xAxisValueFormatter.getFormattedValue(lineData.getXMax(), null);
-
-        String entries = numberOfPoints == 1 ? "entry" : "entries";
-
-        return String.format(Locale.getDefault(), "The line chart has %d %s. " +
-                        "The minimum value is %s and maximum value is %s." +
-                        "Data ranges from %s to %s.",
-                numberOfPoints, entries, minVal, maxVal, minRange, maxRange);
-    }
-}
diff --git a/MPChartLib/src/main/java/com/github/mikephil/charting/charts/LineChart.kt b/MPChartLib/src/main/java/com/github/mikephil/charting/charts/LineChart.kt
new file mode 100644
index 0000000000..86591cd467
--- /dev/null
+++ b/MPChartLib/src/main/java/com/github/mikephil/charting/charts/LineChart.kt
@@ -0,0 +1,54 @@
+package com.github.mikephil.charting.charts
+
+import android.content.Context
+import android.util.AttributeSet
+import com.github.mikephil.charting.data.LineData
+import com.github.mikephil.charting.interfaces.dataprovider.LineDataProvider
+import com.github.mikephil.charting.renderer.LineChartRenderer
+import java.util.Locale
+
+class LineChart : BarLineChartBase<LineData?>, LineDataProvider {
+
+    constructor(context: Context?) : super(context)
+    constructor(context: Context?, attrs: AttributeSet?) : super(context, attrs)
+    constructor(context: Context?, attrs: AttributeSet?, defStyle: Int) : super(context, attrs, defStyle)
+
+    override fun init() {
+        super.init()
+        mRenderer = LineChartRenderer(this, mAnimator, mViewPortHandler)
+    }
+
+    override fun getLineData(): LineData {
+        return mData!!
+    }
+
+    public override fun onDetachedFromWindow() {
+        // releases the bitmap in the renderer to avoid oom error
+        if (mRenderer != null && mRenderer is LineChartRenderer) {
+            (mRenderer as LineChartRenderer).releaseBitmap()
+        }
+        super.onDetachedFromWindow()
+    }
+
+    override fun getAccessibilityDescription(): String {
+        val lineData = lineData
+        val numberOfPoints = lineData.entryCount
+
+        // Min and max values...
+        val yAxisValueFormatter = axisLeft.valueFormatter
+        val minVal = yAxisValueFormatter.getFormattedValue(lineData.yMin, null)
+        val maxVal = yAxisValueFormatter.getFormattedValue(lineData.yMax, null)
+
+        // Data range...
+        val xAxisValueFormatter = xAxis.valueFormatter
+        val minRange = xAxisValueFormatter.getFormattedValue(lineData.xMin, null)
+        val maxRange = xAxisValueFormatter.getFormattedValue(lineData.xMax, null)
+        val entries = if (numberOfPoints == 1) "entry" else "entries"
+        return String.format(
+            Locale.getDefault(), "The line chart has %d %s. " +
+                    "The minimum value is %s and maximum value is %s." +
+                    "Data ranges from %s to %s.",
+            numberOfPoints, entries, minVal, maxVal, minRange, maxRange
+        )
+    }
+}