无法解析符号“IPackageDeleteObserver”

我正在尝试卸载盗版应用程序。 我的sdk中没有以下导入。

import android.app.PackageDeleteObserver; import android.content.pm.IPackageDeleteObserver; 

所以我从这里获得了接口IPackageDeleteObserver https://github.com/android/platform_frameworks_base/blob/master/core/java/android/content/pm/IPackageInstallObserver2.aidl我放在android / content / pm但是我的android工作室没有检测到它。 下拉列表未显示android.content.pm.IPackageDeleteObserver 。 有谁知道如何解决这些import？

这是整个代码：

  package com.vivek.light.utils; /** * Created by Shiva on 24-07-2015. */ import android.app.PackageDeleteObserver; import android.content.pm.IPackageDeleteObserver; import android.content.pm.PackageManager; import android.os.RemoteException; import android.util.Log; import java.lang.reflect.Method; import static com.vivek.light.utils.AntiPiracyConstants.*; public class AntiPiracyUtils { static final String TAG = "ANTI-PIRACY: Utilities"; private static PackageDeleteObserver sPDO; private AntiPiracyUtils() { sPDO = getPackageDeleteObserver(); } private static Class[] UNINSTALLTYPES = new Class[] { String.class, IPackageDeleteObserver.class, int.class }; public static class PackageDeleteObserver extends IPackageDeleteObserver.stub { public void packageDeleted(String packageName, int returnCode) throws RemoteException { if (DEBUG) Log.i(TAG, "PackageDeleteObserver: " + packageName + " removed"); } } public static PackageDeleteObserver getPackageDeleteObserver() { if (sPDO == null) sPDO = new PackageDeleteObserver(); return sPDO; } public static Method getUninstallTypes(PackageManager pm) throws NoSuchMethodException { try { return pm.getClass().getMethod("deletePackage", UNINSTALLTYPES); } catch (NoSuchMethodException WTF) { Log.e(TAG, "NoSuchMethodException" + l); } return null; } }