protected Boolean doInBackground(Void... params) {
// Prevent the onDestroy() method to overlap with initialization:
synchronized (mShutdownLock) {
QCAR.setInitParameters(CopyOfQCARInitActivity_xxx.this, mVuforiaFlags);
do {
mProgressValue = QCAR.init();
// Publish the progress value:
publishProgress(mProgressValue);
} while (!isCancelled() && mProgressValue >= 0 && mProgressValue < 100);
return (mProgressValue > 0);
}
}
@Override
protected void onDestroy() {
DLog.LOGD("onDestroy");
super.onDestroy();
SysMng.OnDeInit();
// Cancel potentially running tasks
if (mInitVuforiaTask != null
&& mInitVuforiaTask.getStatus() != InitVuforiaTask.Status.FINISHED) {
mInitVuforiaTask.cancel(true);
mInitVuforiaTask = null;
}
if (mLoadTrackerTask != null
&& mLoadTrackerTask.getStatus() != LoadTrackerTask.Status.FINISHED) {
mLoadTrackerTask.cancel(true);
mLoadTrackerTask = null;
}
// Ensure that all asynchronous operations to initialize Vuforia
// and loading the tracker datasets do not overlap:
synchronized (mShutdownLock) {
// Do application deinitialization in native code:
deinitApplicationNative();
// Unload texture:
mTextures.clear();
mTextures = null;
// Destroy the tracking data set:
destroyTrackerData();
// Deinit the tracker:
deinitTracker();
// Deinitialize Vuforia SDK:
QCAR.deinit();
}
System.gc();
}