Merge pull request #144 from ggggxiaolong/master

fix CubicLineChartActivity, BarLineChartTouchListener

Author: hannesa2

MPChartExample/src/main/java/com/xxmassdeveloper/mpchartexample/CubicLineChartActivity.java

@@ -105,7 +105,7 @@ protected void onCreate(Bundle savedInstanceState) {
     private void setData(int count, float range) {
 
         ArrayList<Entry> values = new ArrayList<>();
-        Double[] sampleValues = DataTools.Companion.getValues(100);
+        Double[] sampleValues = DataTools.Companion.getMuchValues(count);
 
         for (int i = 0; i < count; i++) {
             float val = (float) (sampleValues[i].floatValue() * (range + 1)) + 20;

MPChartLib/src/main/java/com/github/mikephil/charting/listener/BarLineChartTouchListener.java

@@ -443,6 +443,7 @@ private void performZoom(MotionEvent event) {
      */
     private float getLimitedScaleX(float scaleX, MPPointF t) {
         ViewPortHandler h = mChart.getViewPortHandler();
+		tempMatrix.set(mSavedMatrix);
         tempMatrix.postScale(scaleX, 1f, t.x, t.y);
 
         mSavedMatrix.getValues(matrixBuffer);