jni jnienv GetObjectArrayElement example c c++ java

GetObjectArrayElement

jobject GetObjectArrayElement(JNIEnv *env,
jobjectArray array, jsize index);

Returns an element of an Object array.

LINKAGE:

Index 173 in the JNIEnv interface function table.

PARAMETERS of GetObjectArrayElement

env: the JNI interface pointer.

array: a Java array.

index: array index.

RETURNS of GetObjectArrayElement

Returns a Java object.

THROWS:

ArrayIndexOutOfBoundsException: if index does not specify a valid index in the array.

Example of GetObjectArrayElement

void MyJNIFunction(JNIEnv *env, jobject object, jobjectarray stringArray) {

    int stringCount = GetArrayLength(env, stringArray);

    for (int i=0; i<stringCount; i++) {
        jstring string = (jstring) GetObjectArrayElement(env, stringArray, i);
        const char *rawString = GetStringUTFChars(env, string, 0);
        // Don't forget to call `ReleaseStringUTFChars` when you're done.
    }
}