diff --git a/library/src/com/bumptech/glide/resize/cache/LruMemoryCache.java b/library/src/com/bumptech/glide/resize/cache/LruMemoryCache.java
index 5980904482..5bb048eb5c 100644
--- a/library/src/com/bumptech/glide/resize/cache/LruMemoryCache.java
+++ b/library/src/com/bumptech/glide/resize/cache/LruMemoryCache.java
@@ -4,9 +4,13 @@
 
 package com.bumptech.glide.resize.cache;
 
-import android.graphics.Bitmap;
+import static android.content.ComponentCallbacks2.TRIM_MEMORY_BACKGROUND;
+import static android.content.ComponentCallbacks2.TRIM_MEMORY_MODERATE;
 
+import android.graphics.Bitmap;
+import java.util.Iterator;
 import java.util.LinkedHashMap;
+import java.util.Map;
 
 /**
  */
@@ -47,9 +51,33 @@ public void setImageRemovedListener(ImageRemovedListener listener) {
         this.imageRemovedListener = listener;
     }
 
-    private void evict() {
-        LinkedHashMap.Entry<String, Bitmap> last;
-        while (currentSize > maxSize) {
+    @Override
+    public void clearMemory() {
+        final Iterator<Map.Entry<String,Bitmap>> iterator = cache.entrySet().iterator();
+        while (iterator.hasNext()) {
+            final Bitmap bitmap = iterator.next().getValue();
+            bitmap.recycle();
+            iterator.remove();
+        }
+        currentSize = 0;
+    }
+
+    @Override
+    public void trimMemory(int level) {
+        if (level >= TRIM_MEMORY_MODERATE) {
+            // Nearing middle of list of cached background apps
+            // Evict our entire bitmap cache
+            clearMemory();
+        } else if (level >= TRIM_MEMORY_BACKGROUND) {
+            // Entering list of cached background apps
+            // Evict oldest half of our bitmap cache
+            trimToSize(currentSize / 2);
+        }
+    }
+
+    private void trimToSize(int size) {
+        Map.Entry<String, Bitmap> last;
+        while (currentSize > size) {
             last = cache.entrySet().iterator().next();
             final Bitmap toRemove = last.getValue();
             currentSize -= getSize(toRemove);
@@ -60,4 +88,8 @@ private void evict() {
             }
         }
     }
+
+    private void evict() {
+        trimToSize(maxSize);
+    }
 }
diff --git a/library/src/com/bumptech/glide/resize/cache/MemoryCache.java b/library/src/com/bumptech/glide/resize/cache/MemoryCache.java
index 403cb6c529..09aaf519fe 100644
--- a/library/src/com/bumptech/glide/resize/cache/MemoryCache.java
+++ b/library/src/com/bumptech/glide/resize/cache/MemoryCache.java
@@ -1,5 +1,6 @@
 package com.bumptech.glide.resize.cache;
 
+import android.content.ComponentCallbacks2;
 import android.graphics.Bitmap;
 
 /**
@@ -40,4 +41,15 @@ public interface ImageRemovedListener {
      * @param listener The listener
      */
     public void setImageRemovedListener(ImageRemovedListener listener);
+
+    /**
+     * Evict all items from the memory cache.
+     */
+    public void clearMemory();
+
+    /**
+     * Trim the memory cache to the appropriate level. Typically called on the callback onTrimMemory.
+     * @param level This integer represents a trim level as specified in {@link ComponentCallbacks2}
+     */
+    public void trimMemory(int level);
 }
diff --git a/library/src/com/bumptech/glide/resize/cache/MemoryCacheAdapter.java b/library/src/com/bumptech/glide/resize/cache/MemoryCacheAdapter.java
index 7ca832da29..43d2356823 100644
--- a/library/src/com/bumptech/glide/resize/cache/MemoryCacheAdapter.java
+++ b/library/src/com/bumptech/glide/resize/cache/MemoryCacheAdapter.java
@@ -26,4 +26,10 @@ public Bitmap put(String key, Bitmap bitmap) {
     public void setImageRemovedListener(ImageRemovedListener listener) {
         this.listener = listener;
     }
+
+    @Override
+    public void clearMemory() {}
+
+    @Override
+    public void trimMemory(int level) {}
 }