Release PreviewCallback (#86)

ISSUE_TEMPLATE.md

@@ -7,19 +7,19 @@ Prerequisites:*
 - [ ] *I can reproduce the bug in the demo app, and if not...*
 - [ ] *I have tried to reproduce the bug in the demo app*
 
-##### Detailed steps to reproduce the issue:
+#### Detailed steps to reproduce the issue:
 
 1.
 2.
 3.
 
-##### Expected behavior:
+#### Expected behavior:
 
-##### Actual behavior:
+#### Actual behavior:
 
-##### Screenshots:
+#### Screenshots:
 
-##### Interesting logs:
+#### Interesting logs:
 
 *You can use `CameraLogger.setLogLevel(LEVEL_VERBOSE)`
 to add logs to logcat, and `CameraLogger.registerLogger()`

cameraview/src/main/java/com/otaliastudios/cameraview/Camera1.java

@@ -196,12 +196,14 @@ class Camera1 extends CameraController implements Camera.PreviewCallback {
         LOG.i("onStop:", "About to clean up.");
         mHandler.get().removeCallbacks(mPostFocusResetRunnable);
         if (mCamera != null) {
+
             LOG.i("onStop:", "Clean up.", "Ending video?", mIsCapturingVideo);
             if (mIsCapturingVideo) endVideo();
 
             try {
                 LOG.i("onStop:", "Clean up.", "Stopping preview.");
                 mCamera.stopPreview();
+                mCamera.setPreviewCallback(null);
                 LOG.i("onStop:", "Clean up.", "Stopped preview.");
             } catch (Exception e) {
                 LOG.w("onStop:", "Clean up.", "Exception while stopping preview.");

cameraview/src/main/java/com/otaliastudios/cameraview/CameraView.java

@@ -1607,8 +1607,8 @@ public class CameraView extends FrameLayout {
         @Override
         public void dispatchFrame(final byte[] frame, final long time, final int rotation,
                                   final Size size, final int previewFormat) {
-            mLogger.i("dispatchFrame", time, rotation, "processors:", mFrameProcessors.size());
             if (mFrameProcessors.isEmpty()) return;
+            mLogger.v("dispatchFrame", time, rotation, "processors:", mFrameProcessors.size());
             if (mFrame == null) mFrame = new Frame();
             mFrameProcessorsHandler.post(new Runnable() {
                 @Override