该NFCEE_ADMIN权限签名级别。 但是，是否有可能欺骗工作再上一个植根于手机这个权限？也许使用类似于时钟同步它的方式的技术？

我想使用反射技术来获得访问NFCExtras：

  mAdapter = NfcAdapter.getDefaultAdapter（本）;

尝试 {
    类mynfcextras =的Class.forName（android.nfc.INfcAdapterExtras）;
    方法getnfcExtras = mAdapter.getClass（）实现getMethod（getNfcAdapterExtrasInterface）。
    对象nfcExtras = getnfcExtras.invoke（mAdapter）;
}赶上（例外五）{
    // TODO自动生成的catch块
    e.printStackTrace（）;
}
 

不过，当然得到以下错误：需要NFCEE_ADMIN权限：无论是用户还是XXX当前进程com.android.nfc.permission.NFCEE_ADMIN

编辑：当然，我也允许添加到程序包，但在安装过程中删除：

  W / PackageManager（XXX）：未授予权限com.android.nfc.permission.NFCEE_ADMIN打包XXX（的ProtectionLevel = 2标志= 0x8be46）
 

解决方案

您的应用程序的签名需要在 /system/etc/nfcee_access.xml 。例如参见 HTTP：//$c$c.google.com/p /谋求换安卓/维基/ BuildingTheSystem 一个例子，如何创建它。

The NFCEE_ADMIN permission is signature level. However, is it possible to "cheat" to get this permission on a rooted phone ? Maybe using a technique similar to the way ClockSync does it ?

I am trying to use reflexion techniques to get access to NFCExtras :

mAdapter = NfcAdapter.getDefaultAdapter(this);

try {
    Class mynfcextras = Class.forName("android.nfc.INfcAdapterExtras");
    Method getnfcExtras = mAdapter.getClass().getMethod("getNfcAdapterExtrasInterface");
    Object nfcExtras = getnfcExtras.invoke(mAdapter);
} catch (Exception e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
}

But of course get the following error : "NFCEE_ADMIN permission required: Neither user xxx nor current process has com.android.nfc.permission.NFCEE_ADMIN."

Edit : Of course, I did add the permission to the package, but it is removed during installation :

W/PackageManager(  XXX): Not granting permission com.android.nfc.permission.NFCEE_ADMIN to package XXX (protectionLevel=2 flags=0x8be46)

The signature of your app needs to be in /system/etc/nfcee_access.xml. See e.g. http://code.google.com/p/seek-for-android/wiki/BuildingTheSystem for an example how to create it.