[android] - transition options for layer properties

platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/style/TransitionOptions.java

@@ -0,0 +1,44 @@
+package com.mapbox.mapboxsdk.style;
+
+public class TransitionOptions {
+
+  private long duration;
+  private long delay;
+
+  public TransitionOptions(long duration, long delay) {
+    this.duration = duration;
+    this.delay = delay;
+  }
+
+  public long getDuration() {
+    return duration;
+  }
+
+  public long getDelay() {
+    return delay;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+
+    TransitionOptions that = (TransitionOptions) o;
+
+    if (duration != that.duration) {
+      return false;
+    }
+    return delay == that.delay;
+  }
+
+  @Override
+  public int hashCode() {
+    int result = (int) (duration ^ (duration >>> 32));
+    result = 31 * result + (int) (delay ^ (delay >>> 32));
+    return result;
+  }
+}

platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/style/layers/BackgroundLayer.java

@@ -8,6 +8,8 @@
 
 import static com.mapbox.mapboxsdk.utils.ColorUtils.rgbaToColor;
 
+import com.mapbox.mapboxsdk.style.TransitionOptions;
+
 /**
  * The background color or pattern of the map.
  *
@@ -75,6 +77,24 @@ public int getBackgroundColorAsInt() {
     }
   }
 
+  /**
+   * Get the BackgroundColor property transition options
+   *
+   * @return transition options for String
+   */
+  public TransitionOptions getBackgroundColorTransition() {
+    long[] durations = nativeGetBackgroundColorTransition();
+    return new TransitionOptions(durations[0], durations[1]);
+  }
+
+  /**
+   * Set the BackgroundColor property transition options
+   *
+   * @param options transition options for String
+   */
+  public void setBackgroundColorTransition(TransitionOptions options) {
+    nativeSetBackgroundColorTransition(options.getDuration(), options.getDelay());
+  }
 
   /**
    * Get the BackgroundPattern property
@@ -86,6 +106,25 @@ public PropertyValue<String> getBackgroundPattern() {
     return (PropertyValue<String>) new PropertyValue("background-pattern", nativeGetBackgroundPattern());
   }
 
+  /**
+   * Get the BackgroundPattern property transition options
+   *
+   * @return transition options for String
+   */
+  public TransitionOptions getBackgroundPatternTransition() {
+    long[] durations = nativeGetBackgroundPatternTransition();
+    return new TransitionOptions(durations[0], durations[1]);
+  }
+
+  /**
+   * Set the BackgroundPattern property transition options
+   *
+   * @param options transition options for String
+   */
+  public void setBackgroundPatternTransition(TransitionOptions options) {
+    nativeSetBackgroundPatternTransition(options.getDuration(), options.getDelay());
+  }
+
   /**
    * Get the BackgroundOpacity property
    *
@@ -96,12 +135,42 @@ public PropertyValue<Float> getBackgroundOpacity() {
     return (PropertyValue<Float>) new PropertyValue("background-opacity", nativeGetBackgroundOpacity());
   }
 
+  /**
+   * Get the BackgroundOpacity property transition options
+   *
+   * @return transition options for Float
+   */
+  public TransitionOptions getBackgroundOpacityTransition() {
+    long[] durations = nativeGetBackgroundOpacityTransition();
+    return new TransitionOptions(durations[0], durations[1]);
+  }
+
+  /**
+   * Set the BackgroundOpacity property transition options
+   *
+   * @param options transition options for Float
+   */
+  public void setBackgroundOpacityTransition(TransitionOptions options) {
+    nativeSetBackgroundOpacityTransition(options.getDuration(), options.getDelay());
+  }
+
   private native Object nativeGetBackgroundColor();
 
+  private native long[] nativeGetBackgroundColorTransition();
+
+  private native void nativeSetBackgroundColorTransition(long duration, long delay);
+
   private native Object nativeGetBackgroundPattern();
 
+  private native long[] nativeGetBackgroundPatternTransition();
+
+  private native void nativeSetBackgroundPatternTransition(long duration, long delay);
+
   private native Object nativeGetBackgroundOpacity();
 
+  private native long[] nativeGetBackgroundOpacityTransition();
+
+  private native void nativeSetBackgroundOpacityTransition(long duration, long delay);
 
   @Override
   protected native void finalize() throws Throwable;