This works for a file on the SDCard:
#include <string.h>
#include <jni.h>
#include <stdio.h>
/* This is a trivial JNI example where we use a native method
* to return a new VM String. See the corresponding Java source
* file located at:
*
* apps/samples/hello-jni/project/src/com/example/HelloJni/
HelloJni.java
*/
jstring
Java_com_example_hellojni_HelloJni_stringFromJNI( JNIEnv* env,
jobject thiz )
{
FILE* file = fopen("/sdcard/hello.txt","w+");
if (file != NULL)
{
fputs("HELLO WORLD!\n", file);
fflush(file);
fclose(file);
}
return (*env)->NewStringUTF(env, "Hello from JNI (with file
io)!");
}
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