Make Entry class Parcelable.

NasaGeek · NasaGeek · commit 47b78b4308ba · 2015-10-15T00:45:11.000-04:00
As an Entry object may contain arbitrary data (in the form of a single object),
I took the route of checking if that object is also parcelable and parceling it
if so. If the object is not parcelable, then an Exception is thrown.
diff --git a/MPChartLib/src/com/github/mikephil/charting/data/Entry.java b/MPChartLib/src/com/github/mikephil/charting/data/Entry.java
@@ -1,13 +1,17 @@
 
 package com.github.mikephil.charting.data;
 
+import android.os.Parcel;
+import android.os.ParcelFormatException;
+import android.os.Parcelable;
+
 /**
  * Class representing one entry in the chart. Might contain multiple values.
  * Might only contain a single value depending on the used constructor.
  * 
  * @author Philipp Jahoda
  */
-public class Entry {
+public class Entry implements Parcelable {
 
     /** the actual value */
     private float mVal = 0f;
@@ -142,4 +146,43 @@ public boolean equalTo(Entry e) {
     public String toString() {
         return "Entry, xIndex: " + mXIndex + " val (sum): " + getVal();
     }
+
+    @Override
+    public int describeContents() {
+        return 0;
+    }
+
+    @Override
+    public void writeToParcel(Parcel dest, int flags) {
+        dest.writeFloat(this.mVal);
+        dest.writeInt(this.mXIndex);
+        if (mData != null) {
+            if (mData instanceof Parcelable) {
+                dest.writeInt(1);
+                dest.writeParcelable((Parcelable) this.mData, flags);
+            } else {
+                throw new ParcelFormatException("Cannot parcel an Entry with non-parcelable data");
+            }
+        } else {
+            dest.writeInt(0);
+        }
+    }
+
+    protected Entry(Parcel in) {
+        this.mVal = in.readFloat();
+        this.mXIndex = in.readInt();
+        if (in.readInt() == 1) {
+            this.mData = in.readParcelable(Object.class.getClassLoader());
+        }
+    }
+
+    public static final Parcelable.Creator<Entry> CREATOR = new Parcelable.Creator<Entry>() {
+        public Entry createFromParcel(Parcel source) {
+            return new Entry(source);
+        }
+
+        public Entry[] newArray(int size) {
+            return new Entry[size];
+        }
+    };
 }
