diff --git a/build.gradle b/build.gradle
index 20994bab..4ba5c105 100644
--- a/build.gradle
+++ b/build.gradle
@@ -9,6 +9,7 @@ buildscript {
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
+        classpath 'org.jfrog.buildinfo:build-info-extractor-gradle:4.1.0'
     }
 }
 
@@ -23,7 +24,7 @@ task clean(type: Delete) {
 }
 
 ext {
-    buildToolsVersion = '25.0.2'
+    buildToolsVersion = '25.0.1'
     compileSdkVersion = 25
     minSdkVersion = 9
     targetSdkVersion = 25
diff --git a/library/build.gradle b/library/build.gradle
index 30b53bd8..3dfeaba2 100644
--- a/library/build.gradle
+++ b/library/build.gradle
@@ -13,6 +13,8 @@
 // limitations under the License.
 
 apply plugin: 'com.android.library'
+apply plugin: 'com.jfrog.artifactory'
+apply plugin: 'maven-publish'
 
 android {
     compileSdkVersion rootProject.ext.compileSdkVersion
@@ -38,6 +40,35 @@ android {
     }
 }
 
+artifactory {
+    contextUrl = "${System.env.ARTIFACTORY_URL}"
+    publish {
+        repository {
+            repoKey = 'private-local'
+            username = "${System.env.ARTIFACTORY_USERNAME}"
+            password = "${System.env.ARTIFACTORY_PASSWORD}"
+            maven = true
+        }
+        defaults {
+            publications('aar')
+        }
+    }
+}
+
+
+
+publishing {
+    publications {
+        aar(MavenPublication) {
+            groupId 'premise.android.cameraview'
+            version '0.2.9'
+            artifactId 'cameraview'
+
+            artifact("$buildDir/outputs/aar/${project.getName()}-release.aar")
+        }
+    }
+}
+
 dependencies {
     compile "com.android.support:support-annotations:$supportLibraryVersion"
     compile "com.android.support:support-v4:$supportLibraryVersion"
diff --git a/library/src/main/api14/com/google/android/cameraview/Camera1.java b/library/src/main/api14/com/google/android/cameraview/Camera1.java
index 1830c185..920ef5d6 100644
--- a/library/src/main/api14/com/google/android/cameraview/Camera1.java
+++ b/library/src/main/api14/com/google/android/cameraview/Camera1.java
@@ -423,9 +423,13 @@ private boolean setFlashInternal(int flash) {
                 mCameraParameters.setFlashMode(mode);
                 mFlash = flash;
                 return true;
-            }
+             }
             String currentMode = FLASH_MODES.get(mFlash);
-            if (modes == null || !modes.contains(currentMode)) {
+            /**
+             * kkawai, fix for 1st gen Nexus 7 that only has front facing
+             * camera with no flash
+             */
+            if (modes != null && !modes.contains(currentMode)) {
                 mCameraParameters.setFlashMode(Camera.Parameters.FLASH_MODE_OFF);
                 mFlash = Constants.FLASH_OFF;
                 return true;
diff --git a/library/src/main/api14/com/google/android/cameraview/TextureViewPreview.java b/library/src/main/api14/com/google/android/cameraview/TextureViewPreview.java
index d2f6dc61..8d3d550c 100644
--- a/library/src/main/api14/com/google/android/cameraview/TextureViewPreview.java
+++ b/library/src/main/api14/com/google/android/cameraview/TextureViewPreview.java
@@ -134,6 +134,8 @@ void configureTransform() {
                                     0.f, height, // bottom right
                             }, 0,
                     4);
+        } else if (mDisplayOrientation == 180) {
+            matrix.postRotate(180, getWidth() / 2, getHeight() / 2);
         }
         mTextureView.setTransform(matrix);
     }
diff --git a/library/src/main/java/com/google/android/cameraview/CameraView.java b/library/src/main/java/com/google/android/cameraview/CameraView.java
index 04826d84..a2ef8d37 100644
--- a/library/src/main/java/com/google/android/cameraview/CameraView.java
+++ b/library/src/main/java/com/google/android/cameraview/CameraView.java
@@ -33,6 +33,7 @@
 
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
+import java.lang.ref.WeakReference;
 import java.util.ArrayList;
 import java.util.Set;
 
@@ -96,13 +97,13 @@ public CameraView(Context context, AttributeSet attrs, int defStyleAttr) {
         }
         // Internal setup
         final PreviewImpl preview = createPreviewImpl(context);
-        mCallbacks = new CallbackBridge();
+        mCallbacks = new CallbackBridge(this);
         if (Build.VERSION.SDK_INT < 21) {
             mImpl = new Camera1(mCallbacks, preview);
         } else if (Build.VERSION.SDK_INT < 23) {
-            mImpl = new Camera2(mCallbacks, preview, context);
+            mImpl = new Camera2(mCallbacks, preview, context.getApplicationContext());
         } else {
-            mImpl = new Camera2Api23(mCallbacks, preview, context);
+            mImpl = new Camera2Api23(mCallbacks, preview, context.getApplicationContext());
         }
         // Attributes
         TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.CameraView, defStyleAttr,
@@ -152,6 +153,9 @@ protected void onDetachedFromWindow() {
             mDisplayOrientationDetector.disable();
         }
         super.onDetachedFromWindow();
+        if (mCallbacks != null && mCallbacks.mCallbacks != null) {
+            mCallbacks.mCallbacks.clear();
+        }
     }
 
     @Override
@@ -407,13 +411,16 @@ public void takePicture() {
         mImpl.takePicture();
     }
 
-    private class CallbackBridge implements CameraViewImpl.Callback {
+    private static class CallbackBridge implements CameraViewImpl.Callback {
 
         private final ArrayList<Callback> mCallbacks = new ArrayList<>();
 
         private boolean mRequestLayoutOnOpen;
 
-        CallbackBridge() {
+        private WeakReference<CameraView> cameraView;
+
+        CallbackBridge(CameraView cameraView) {
+            this.cameraView = new WeakReference<>(cameraView);
         }
 
         public void add(Callback callback) {
@@ -428,24 +435,26 @@ public void remove(Callback callback) {
         public void onCameraOpened() {
             if (mRequestLayoutOnOpen) {
                 mRequestLayoutOnOpen = false;
-                requestLayout();
+                if (cameraView.get() != null) {
+                    cameraView.get().requestLayout();
+                }
             }
             for (Callback callback : mCallbacks) {
-                callback.onCameraOpened(CameraView.this);
+                callback.onCameraOpened(cameraView.get());
             }
         }
 
         @Override
         public void onCameraClosed() {
             for (Callback callback : mCallbacks) {
-                callback.onCameraClosed(CameraView.this);
+                callback.onCameraClosed(cameraView.get());
             }
         }
 
         @Override
         public void onPictureTaken(byte[] data) {
             for (Callback callback : mCallbacks) {
-                callback.onPictureTaken(CameraView.this, data);
+                callback.onPictureTaken(cameraView.get(), data);
             }
         }
 
@@ -488,7 +497,7 @@ public void writeToParcel(Parcel out, int flags) {
             out.writeInt(flash);
         }
 
-        public static final Parcelable.Creator<SavedState> CREATOR
+        public static final Creator<SavedState> CREATOR
                 = ParcelableCompat.newCreator(new ParcelableCompatCreatorCallbacks<SavedState>() {
 
             @Override