一、unity3d调用java
unity里面想要获取安卓设备的唯一ID，必须通过原生的java接口来获取。
首先创建一个安卓库文件工程，里面新建一个java类，并从UnityPlayerMainActivity类派生，如下代码所示：
public class AndroidPlugin extends UnityPlayerMainActivity
{private static String unitygameobjectName = "_main"; //Unity 中对应挂脚本对象的名称private static AndroidPlugin thisActivity=null;public final static int FILECHOOSER_RESULTCODE = 19238467; protected static ValueCallback<Uri> _uploadMessages;protected static ValueCallback<Uri[]> _uploadCallback;protected static String _cameraPhotoPath;protected static final String LOG_TAG = "AndroidPlugin";private static final String TAG = "AndroidPlugin";private int _textureId = 0;private SurfaceTexture _surfaceTexture;private IjkMediaPlayer player = null;private Texture2DExt mTexture2DExt;private Texture2D mUnityTexture;private FBO mFBO;private float[] mMVPMatrix = new float[16];private MyPluginCallbackListener _listener;public static Activity getUnityActivity_(){return thisActivity;//UnityPlayer.currentActivity;}@Overridepublic void onCreate(Bundle savedInstanceState){thisActivity = this;super.onCreate(savedInstanceState); }public static String getAndroidUUID(){String deviceID = "androiduuid";if (ContextCompat.checkSelfPermission(thisActivity, android.Manifest.permission.READ_PHONE_STATE) != 0){ActivityCompat.requestPermissions(thisActivity, new String[] {Manifest.permission.READ_PHONE_STATE}, 9999);}else{TelephonyManager tm = (TelephonyManager)getUnityActivity_().getSystemService(Context.TELEPHONY_SERVICE);deviceID = tm.getDeviceId();}Log.d("androiduuid", "androiduuid is:" + deviceID);return deviceID;}
｝AndroidPlugin类里面添加需要调用的接口，比如：getAndroidUUID，将此类编译成一个jar库文件，复制到Plugins\Android\libs目录下。
c#需要添加以下相关的代码：
void Awake(){
#if UNITY_STANDALONE_WIN || UNITY_EDITOR#elif UNITY_ANDROID// unityClassObj = new AndroidJavaClass(UNTIFY_CLASS);AndroidJavaClassObj = new AndroidJavaClass(JAVA_CLASS);AndroidJavaObj = AndroidJavaClassObj.CallStatic<AndroidJavaObject>("getUnityActivity_");
#endif}public string GetDeviceID(){if (Application.platform != RuntimePlatform.OSXEditor && Application.platform != RuntimePlatform.WindowsEditor){try{
#if UNITY_ANDROID//AndroidJavaObject curA = unityClassObj.GetStatic<AndroidJavaObject>("currentActivity"); string aID = SystemInfo.deviceUniqueIdentifier;if (AndroidJavaObj != null)aID = AndroidJavaObj.CallStatic<string>("getAndroidUUID");return "ANDROID-" + aID;
#elif UNITY_IPHONEstring iID = GetIphoneADID();return "IOS-"+iID;
#endif}catch (System.Exception e){Debug.Log(e);}return SystemInfo.deviceUniqueIdentifier;}return SystemInfo.deviceUniqueIdentifier;})
)
