jni返回byte[]

http://www.aichengxu.com/view/48141
再次基础上做了改动
 
调用：
int ilength,i;
byte[] retdata;
byte[] out1 = new byte[1024];
{ out1[0] =(byte) 0X31; out1[1] =(byte) 0X32; out1[2] =0x33; out1[3] =0x34; out1[4] = 0x35;
}
retdata=JniNatives.Bluetooth_NativeProcessData_Send(out1, 5);

jni:

JNIEXPORT jbyteArray JNICALL Native_ProcessData_Send(JNIEnv *env, jobject clazz, jbyteArray data,jint len)

{
jbyte gs_raw_data[256];
int i;
jbyte* bytedata =env->GetByteArrayElements(data, 0);
memset(&gs_raw_data,0,255);
memcpy(&gs_raw_data,bytedata,len);
// parse the data
//below is the return 's bytearray lens
jbyteArray jarrRV =env->NewByteArray(len+1);
env->SetByteArrayRegion(jarrRV, 0,len,gs_raw_data);
return jarrRV;
}
static JNINativeMethod gMethods[] = {

{"Bluetooth_NativeProcessData_Send","([BI)[B",(void*)Native_ProcessData_Send}
}

文章来源: blog.csdn.net，作者：网奇，版权归原作者所有，如需转载，请联系作者。

原文链接：blog.csdn.net/jacke121/article/details/61419401