<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical"

    tools:context=".MainActivity" >

    <Button

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:onClick="click"

        android:text="传递int类型参数" />

    <Button

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:onClick="passString"

        android:text="传递String类型参数" />

    <Button

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:onClick="passIntArray"

        android:text="传递Int类型数组" />

</LinearLayout>

/*

 * Class:     com_wuyudong_javapassdata_JNI

 * Method:    arrElementsIncrease

 * Signature: ([I)[I

 */JNIEXPORT jintArray

 JNICALL Java_com_wuyudong_javapassdata_JNI_arrElementsIncrease(

        JNIEnv * env, jobject clazz, jintArray jArray){

      jsize len = (*env)->GetArrayLength(env, jArray);

     // jboolean iscopy;

      int* arrayPointer = (*env)->GetIntArrayElements(env, jArray, NULL);

      int i;

      for(i = ; i < len; i++){

          *(arrayPointer + i) += ;

      }

      return jArray;

 }

    public void passIntArray(View v) {

        int[] array = new int[] { 1, 2, 3, 4, 5 };

        int[] newArray = jni.arrElementsIncrease(array);

        for (int i : newArray) {

            Log.d("test", i + "");

        }

    }