[android] accept floating numbers during core->platform color conversion

(cherry picked from commit 55527d041231448945904cdb67bef0dd08d62110)

2 files changed, 29 insertions, 5 deletions

diff --git a/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/utils/ColorUtils.java b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/utils/ColorUtils.java
index ab3d68547e..8d741d1bdc 100644
--- a/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/utils/ColorUtils.java
+++ b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/utils/ColorUtils.java
@@ -124,14 +124,16 @@ public class ColorUtils {
    */
   @ColorInt
   public static int rgbaToColor(@NonNull String value) {
-    Pattern c = Pattern.compile("rgba?\\s*\\(\\s*(\\d+)\\s*,\\s*(\\d+)\\s*,\\s*(\\d+)\\s*,?\\s*(\\d+\\.?\\d*)?\\s*\\)");
+    // we need to accept and floor float values as well, as those can come from core
+    Pattern c = Pattern.compile("rgba?\\s*\\(\\s*(\\d+\\.?\\d*)\\s*,\\s*(\\d+\\.?\\d*)\\s*,\\s*(\\d+\\.?\\d*)\\s*,"
+      + "?\\s*(\\d+\\.?\\d*)?\\s*\\)");
     Matcher m = c.matcher(value);
     if (m.matches() && m.groupCount() == 3) {
-      return Color.rgb(Integer.parseInt(m.group(1)), Integer.parseInt(m.group(2)),
-        Integer.parseInt(m.group(3)));
+      return Color.rgb((int) Float.parseFloat(m.group(1)), (int) Float.parseFloat(m.group(2)),
+        (int) Float.parseFloat(m.group(3)));
     } else if (m.matches() && m.groupCount() == 4) {
-      return Color.argb((int) (Float.parseFloat(m.group(4)) * 255), Integer.parseInt(m.group(1)),
-        Integer.parseInt(m.group(2)), Integer.parseInt(m.group(3)));
+      return Color.argb((int) (Float.parseFloat(m.group(4)) * 255), (int) Float.parseFloat(m.group(1)),
+        (int) Float.parseFloat(m.group(2)), (int) Float.parseFloat(m.group(3)));
     } else {
       throw new ConversionException("Not a valid rgb/rgba value");
     }
diff --git a/platform/android/MapboxGLAndroidSDK/src/test/java/com/mapbox/mapboxsdk/utils/ColorUtilsTest.kt b/platform/android/MapboxGLAndroidSDK/src/test/java/com/mapbox/mapboxsdk/utils/ColorUtilsTest.kt
new file mode 100644
index 0000000000..530a08a4e5
--- /dev/null
+++ b/platform/android/MapboxGLAndroidSDK/src/test/java/com/mapbox/mapboxsdk/utils/ColorUtilsTest.kt
@@ -0,0 +1,22 @@
+package com.mapbox.mapboxsdk.utils
+
+import android.graphics.Color
+import junit.framework.Assert
+import org.junit.Test
+
+class ColorUtilsTest {
+
+  @Test
+  fun rgbaToColor_decimalComponent() {
+    val input = "rgba(255,128.0000952303,0,0.7)"
+    val result = ColorUtils.rgbaToColor(input)
+    Assert.assertEquals(Color.argb(255, 128, 0, (0.7 * 255).toInt()), result)
+  }
+
+  @Test
+  fun rgbaToColor_decimalComponent_floor() {
+    val input = "rgba(255,128.70123,0,0.7)"
+    val result = ColorUtils.rgbaToColor(input)
+    Assert.assertEquals(Color.argb(255, 128, 0, (0.7 * 255).toInt()), result)
+  }
+}
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