New formatters for YAxis and XAxis with greater customizeability.

Author: PhilJay

MPChartExample/src/com/xxmassdeveloper/mpchartexample/BarChartActivity.java

@@ -33,8 +33,8 @@
 import com.github.mikephil.charting.data.filter.Approximator.ApproximatorType;
 import com.github.mikephil.charting.listener.OnChartValueSelectedListener;
 import com.github.mikephil.charting.highlight.Highlight;
-import com.github.mikephil.charting.utils.ValueFormatter;
-import com.xxmassdeveloper.mpchartexample.custom.MyValueFormatter;
+import com.github.mikephil.charting.formatter.YAxisValueFormatter;
+import com.xxmassdeveloper.mpchartexample.custom.MyYAxisValueFormatter;
 import com.xxmassdeveloper.mpchartexample.notimportant.DemoBase;
 
 import java.util.ArrayList;
@@ -92,7 +92,7 @@ protected void onCreate(Bundle savedInstanceState) {
         xAxis.setDrawGridLines(false);
         xAxis.setSpaceBetweenLabels(2);
 
-        ValueFormatter custom = new MyValueFormatter();
+        YAxisValueFormatter custom = new MyYAxisValueFormatter();
 
         YAxis leftAxis = mChart.getAxisLeft();
         leftAxis.setTypeface(mTf);
@@ -267,7 +267,6 @@ private void setData(int count, float range) {
         dataSets.add(set1);
 
         BarData data = new BarData(xVals, dataSets);
-        // data.setValueFormatter(new MyValueFormatter());
         data.setValueTextSize(10f);
         data.setValueTypeface(mTf);
 

MPChartExample/src/com/xxmassdeveloper/mpchartexample/BarChartActivityMultiDataset.java

@@ -24,7 +24,7 @@
 import com.github.mikephil.charting.data.Entry;
 import com.github.mikephil.charting.listener.OnChartValueSelectedListener;
 import com.github.mikephil.charting.highlight.Highlight;
-import com.github.mikephil.charting.utils.LargeValueFormatter;
+import com.github.mikephil.charting.formatter.LargeValueFormatter;
 import com.xxmassdeveloper.mpchartexample.custom.MyMarkerView;
 import com.xxmassdeveloper.mpchartexample.notimportant.DemoBase;
 

MPChartExample/src/com/xxmassdeveloper/mpchartexample/LineChartActivity1.java

@@ -103,7 +103,7 @@ protected void onCreate(Bundle savedInstanceState) {
         llXAxis.setTextSize(10f);
 
         XAxis xAxis = mChart.getXAxis();
-        //xAxis.setXValueFormatter(new MyCustomXValueFormatter());
+        //xAxis.setValueFormatter(new MyCustomXAxisValueFormatter());
         //xAxis.addLimitLine(llXAxis); // add x-axis limit line
 
         LimitLine ll1 = new LimitLine(130f, "Upper Limit");
@@ -133,8 +133,8 @@ protected void onCreate(Bundle savedInstanceState) {
 
         mChart.getAxisRight().setEnabled(false);
 
-        mChart.getViewPortHandler().setMaximumScaleY(2f);
-        mChart.getViewPortHandler().setMaximumScaleX(2f);
+        //mChart.getViewPortHandler().setMaximumScaleY(2f);
+        //mChart.getViewPortHandler().setMaximumScaleX(2f);
 
         // add data
         setData(45, 100);

MPChartExample/src/com/xxmassdeveloper/mpchartexample/PieChartActivity.java

@@ -23,7 +23,7 @@
 import com.github.mikephil.charting.listener.OnChartValueSelectedListener;
 import com.github.mikephil.charting.utils.ColorTemplate;
 import com.github.mikephil.charting.highlight.Highlight;
-import com.github.mikephil.charting.utils.PercentFormatter;
+import com.github.mikephil.charting.formatter.PercentFormatter;
 import com.xxmassdeveloper.mpchartexample.notimportant.DemoBase;
 
 import java.util.ArrayList;

MPChartExample/src/com/xxmassdeveloper/mpchartexample/StackedBarActivity.java

@@ -29,6 +29,7 @@
 import com.github.mikephil.charting.listener.OnChartValueSelectedListener;
 import com.github.mikephil.charting.utils.ColorTemplate;
 import com.xxmassdeveloper.mpchartexample.custom.MyValueFormatter;
+import com.xxmassdeveloper.mpchartexample.custom.MyYAxisValueFormatter;
 import com.xxmassdeveloper.mpchartexample.notimportant.DemoBase;
 
 public class StackedBarActivity extends DemoBase implements OnSeekBarChangeListener, OnChartValueSelectedListener {
@@ -71,7 +72,7 @@ protected void onCreate(Bundle savedInstanceState) {
 
 		// change the position of the y-labels
 		YAxis yLabels = mChart.getAxisLeft();
-		yLabels.setValueFormatter(new MyValueFormatter());
+		yLabels.setValueFormatter(new MyYAxisValueFormatter());
 		mChart.getAxisRight().setEnabled(false);
 
 		XAxis xLabels = mChart.getXAxis();

MPChartExample/src/com/xxmassdeveloper/mpchartexample/StackedBarActivityNegative.java

@@ -24,7 +24,9 @@
 import com.github.mikephil.charting.data.filter.Approximator.ApproximatorType;
 import com.github.mikephil.charting.listener.OnChartValueSelectedListener;
 import com.github.mikephil.charting.highlight.Highlight;
-import com.github.mikephil.charting.utils.ValueFormatter;
+import com.github.mikephil.charting.formatter.ValueFormatter;
+import com.github.mikephil.charting.utils.ViewPortHandler;
+import com.github.mikephil.charting.formatter.YAxisValueFormatter;
 import com.xxmassdeveloper.mpchartexample.notimportant.DemoBase;
 
 import java.text.DecimalFormat;
@@ -211,16 +213,23 @@ public void onNothingSelected() {
 
     }
 
-    private class CustomFormatter implements ValueFormatter {
+    private class CustomFormatter implements ValueFormatter, YAxisValueFormatter {
 
         private DecimalFormat mFormat;
 
         public CustomFormatter() {
             mFormat = new DecimalFormat("###");
         }
 
+        // data
         @Override
-        public String getFormattedValue(float value) {
+        public String getFormattedValue(float value, Entry entry, int dataSetIndex, ViewPortHandler viewPortHandler) {
+            return mFormat.format(Math.abs(value)) + "m";
+        }
+
+        // YAxis
+        @Override
+        public String getFormattedValue(float value, YAxis yAxis) {
             return mFormat.format(Math.abs(value)) + "m";
         }
     }

MPChartExample/src/com/xxmassdeveloper/mpchartexample/custom/MyCustomXValueFormatter.java renamed to MPChartExample/src/com/xxmassdeveloper/mpchartexample/custom/MyCustomXAxisValueFormatter.java

@@ -1,14 +1,14 @@
 package com.xxmassdeveloper.mpchartexample.custom;
 
 import com.github.mikephil.charting.utils.ViewPortHandler;
-import com.github.mikephil.charting.utils.XValueFormatter;
+import com.github.mikephil.charting.formatter.XAxisValueFormatter;
 
 /**
  * Created by Philipp Jahoda on 14/09/15.
  */
-public class MyCustomXValueFormatter implements XValueFormatter {
+public class MyCustomXAxisValueFormatter implements XAxisValueFormatter {
 
-    public MyCustomXValueFormatter() {
+    public MyCustomXAxisValueFormatter() {
         // maybe do something here or provide parameters in constructor
     }
 

MPChartExample/src/com/xxmassdeveloper/mpchartexample/custom/MyFillFormatter.java

@@ -2,7 +2,7 @@
 
 import com.github.mikephil.charting.data.LineDataSet;
 import com.github.mikephil.charting.interfaces.LineDataProvider;
-import com.github.mikephil.charting.utils.FillFormatter;
+import com.github.mikephil.charting.formatter.FillFormatter;
 
 /**
  * Created by Philipp Jahoda on 12/09/15.

MPChartExample/src/com/xxmassdeveloper/mpchartexample/custom/MyValueFormatter.java

@@ -1,6 +1,8 @@
 package com.xxmassdeveloper.mpchartexample.custom;
 
-import com.github.mikephil.charting.utils.ValueFormatter;
+import com.github.mikephil.charting.data.Entry;
+import com.github.mikephil.charting.formatter.ValueFormatter;
+import com.github.mikephil.charting.utils.ViewPortHandler;
 
 import java.text.DecimalFormat;
 
@@ -11,10 +13,9 @@ public class MyValueFormatter implements ValueFormatter {
     public MyValueFormatter() {
         mFormat = new DecimalFormat("###,###,###,##0.0");
     }
-    
+
     @Override
-    public String getFormattedValue(float value) {
+    public String getFormattedValue(float value, Entry entry, int dataSetIndex, ViewPortHandler viewPortHandler) {
         return mFormat.format(value) + " $";
     }
-
 }

MPChartExample/src/com/xxmassdeveloper/mpchartexample/custom/MyYAxisValueFormatter.java

@@ -0,0 +1,20 @@
+package com.xxmassdeveloper.mpchartexample.custom;
+
+import com.github.mikephil.charting.components.YAxis;
+import com.github.mikephil.charting.formatter.YAxisValueFormatter;
+
+import java.text.DecimalFormat;
+
+public class MyYAxisValueFormatter implements YAxisValueFormatter {
+
+    private DecimalFormat mFormat;
+
+    public MyYAxisValueFormatter() {
+        mFormat = new DecimalFormat("###,###,###,##0.0");
+    }
+
+    @Override
+    public String getFormattedValue(float value, YAxis yAxis) {
+        return mFormat.format(value) + " $";
+    }
+}