我正在使用android java插件以统一的方式调用我的java函数:
static IntPtr cls_Activity;
static IntPtr fid_Activity;
static IntPtr obj_Activity;
static IntPtr kdataActivityClass;
static IntPtr startAdsMethod;
void Start () {
cls_Activity = AndroidJNI.FindClass("com/unity3d/player/UnityPlayer");
fid_Activity = AndroidJNI.GetStaticFieldID(cls_Activity, "currentActivity", "Landroid/app/Activity;");
obj_Activity = AndroidJNI.GetStaticObjectField(cls_Activity, fid_Activity);
kdataActivityClass = AndroidJNI.FindClass("com/kdata/unitytest/UnityUrlPlugin");
startAdsMethod = AndroidJNI.GetMethodID(PakdataActivityClass, "getURL","()V");
Debug.Log("obj_Activity"+obj_Activity);
Debug.Log("kdataActivityClass"+kdataActivityClass);
Debug.Log("Method"+startAdsMethod);
if (AndroidJNI.IsInstanceOf(obj_Activity, kdataActivityClass) != false)
{
jvalue[] myArray = new jvalue[1];
AndroidJNI.CallStaticStringMethod(obj_Activity, startAdsMethod, myArray);
}
问题是我正在访问该类,但该类中的方法返回null
Debug.Log("obj_Activity"+obj_Activity);
=>返回值
Debug.Log("kdataActivityClass"+kdataActivityClass);
=>返回=>值
Debug.Log("Method"+startAdsMethod);
=> retunns null< ===这是此方法的问题
应该返回一个硬编码的字符串,但它不能统一工作。
非常感谢帮助。 感谢
答案 0 :(得分:0)
使用javap检查getURL方法jni签名(您是否将相同的内容添加到第三个参数?):
cd <pathToUnityUrlPluginClass>
javap -p -s <UnityUrlPlugin>