JNA does not support mapping of c++ classes, so if you’re using c++ library you will need a jni wrapper If you need a lot of memory copying. For example, you call one method which returns you a large byte buffer, you change something in it, then you need to call another method which uses … Read more
Which JPA are you using – Hibernate, EclipseLink or something else? There is no standard way to do this in JPA but your specific implementation may allow it – for example, Eclipselink has a query result type hint. http://dev.eclipse.org/mhonarc/lists/eclipselink-users/msg03013.html Query query = entityManager.createNativeQuery(sql); query.setHint(QueryHints.RESULT_TYPE, ResultType.Map); For Hibernate, with javax.persistence.Query dbQuery: org.hibernate.Query hibernateQuery =((org.hibernate.jpa.HibernateQuery)dbQuery) .getHibernateQuery(); hibernateQuery.setResultTransformer(AliasToEntityMapResultTransformer.INSTANCE);
For my application I used an activity with the Dialog theme. You can declare the theme in the manifest file : <activity android:name=”PopupActivity” android:launchMode=”singleInstance” android:excludeFromRecents=”true” android:taskAffinity=”” android:theme=”@android:style/Theme.Dialog” /> use launcheMode=”singleInstance” and taskAffinity=”” if your popup is detached from your main application. Otherwise user may click the back button and return to the previous activity of … Read more
I decided to re-post my answer from elsewhere here, so that all of this is on one page for easy access. If this is against SO policies, please tell me and delete this post from here. Here is my idea on how to create separate APK files for each supported processor architecture: Build one “fat” … Read more
You can use the following : First we get the last saved image by checking which was the last modified image. Then check if last modified time is in the last few seconds. You may also have to check the exact location of where camera stores the image. private boolean deleteLastFromDCIM() { boolean success = … Read more
This would appear to be a result of two ndk-gcc bugs mentioned at https://code.google.com/p/android/issues/detail?id=23203 and stated there to have been fixed as of ndk-r8c. It would appear that the check for libraries with the issue has been added only recently. Note: please do not edit this post to hide the link URL. It is explicit … Read more
**: exponentiation ^: exclusive-or (bitwise) %: modulus //: divide with integral result (discard remainder)
What this question amounts to is asking how to call C++ instance methods using JNA, and it’s possible, but you’re going to have to do some work. In particular, you’ll need to write a wrapper which extern “C”s any functions you actually need to invoke. For any arbitrary type* function() definition you can map the … Read more
In my case this particular problem happened when I was trying to archive a 0.40+ react-native app for iOS (solution was found here: Reliable build on ^0.39.2 fails when upgrading to ^0.40.0). What happened was that Xcode was trying to build the react-native libraries in parallel and was building libraries with implicit react dependencies before … Read more
Yes, ARM native code runs on Intel x86 using an emulation feature named Houdini What this library does is reads ARM instructions on the fly and converts them to equivalent x86 instructions. This is the reason why many apps may work as is on x86 without actually having to build an equivalent library.