android-ndk_开发者

JNI: jstring make the app crash on android

I\'m getting started with Android-NDK. So here we are, with a problem. This 开发者_运维百科is the C file:[详细]

2023-04-13 07:34 分类：问答

Does Android glTexSubImage2D Work At All?

Does anyone have working code using glTexSubImage2D() on Android, preferably开发者_运维问答 via the NDK but even just in Java?[详细]

2023-04-13 05:35 分类：问答

Android - JNI NewObject() does not save values when passing it to Java

I am using native code to create an object which I then pass as an argument to a method I call. Nothing appears to go wrong in native code, but when I get the call in Java, the object seems to have nu[详细]

2023-04-13 00:21 分类：问答

Android - native sockets not removing 3G-sleep-mode on first attempt

I have a really annoying problem. What happens is I have an application which is using native sockets to send data over TCP.[详细]

2023-04-12 14:21 分类：问答

Error in loading .so file (Tesseract) on real device Android 2.1

I am developing a sample scan activity for card reading(OCR) using Tesseract tools. It works fine on emulator (using android 2.2) and scans given card from sdcard fastly and easily.[详细]

2023-04-12 14:14 分类：问答

Using Android NDK to implement EDSDK

I am now doing a final year project of making a remote control of Canon DSLR from Android devices. What I know is that using Android NDK, I will be able to call a function from the EDSDK from the Andr[详细]

2023-04-12 13:48 分类：问答

Fast way to decode JPEG image

I need to decode (unpack into bitmap) pretty small (about 1200 * 1200) JPEG. The problem is I need to do it quickly. I have开发者_如何学运维 tried libjpeg, and it\'s quite slow. I have also tried Bitm[详细]

2023-04-12 08:31 分类：问答

Crash on function call in Android NDK

I am developing an Android based project that requires some components to run via the NDK because I\'m using code already written in C. I am having a very weird problem where the program crashes when[详细]

2023-04-12 04:19 分类：问答

Boost C++ and Android 3

I tr开发者_如何学运维ied to google and SO search. So far I was able to find only conflicting information. If it is too hard to marry Boost and Android, maybe there are replacements? I am especially in[详细]

2023-04-12 02:53 分类：问答

"Immediate out of range errors" when assigning 0.0 to a NEON register

If I understand it correctly, because ARM instructions are 32 bits long they can only hold so many bits of immediate value. What I\'m trying to do is vmov.f32 s0, #0.0, and I get \"immediate out of ra[详细]

2023-04-12 01:07 分类：问答