Add explicit check for null preview data.

Fixes #268.
journeyapps · Mar 20, 2017 · 9ec92a5 · 9ec92a5
1 parent 2cf4b60
commit 9ec92a5
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/zxing-android-embedded/src/com/journeyapps/barcodescanner/camera/CameraManager.java b/zxing-android-embedded/src/com/journeyapps/barcodescanner/camera/CameraManager.java
@@ -97,6 +97,9 @@ public void onPreviewFrame(byte[] data, Camera camera) {
             PreviewCallback callback = this.callback;
             if (cameraResolution != null && callback != null) {
                 try {
+                    if(data == null) {
+                        throw new NullPointerException("No preview data received");
+                    }
                     int format = camera.getParameters().getPreviewFormat();
                     SourceData source = new SourceData(data, cameraResolution.width, cameraResolution.height, format, getCameraRotation());
                     callback.onPreview(source);