android.util.Singleton Java Examples

The following examples show how to use android.util.Singleton. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: PluginManager.java    From VirtualAPK with Apache License 2.0 6 votes vote down vote up 
/**
 * hookSystemServices, but need to compatible with Android O in future.
 */
protected void hookSystemServices() {
    try {
        Singleton<IActivityManager> defaultSingleton;

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            defaultSingleton = Reflector.on(ActivityManager.class).field("IActivityManagerSingleton").get();
        } else {
            defaultSingleton = Reflector.on(ActivityManagerNative.class).field("gDefault").get();
        }
        IActivityManager origin = defaultSingleton.get();
        IActivityManager activityManagerProxy = (IActivityManager) Proxy.newProxyInstance(mContext.getClassLoader(), new Class[] { IActivityManager.class },
            createActivityManagerProxy(origin));

        // Hook IActivityManager from ActivityManagerNative
        Reflector.with(defaultSingleton).field("mInstance").set(activityManagerProxy);

        if (defaultSingleton.get() == activityManagerProxy) {
            this.mActivityManager = activityManagerProxy;
            Log.d(TAG, "hookSystemServices succeed : " + mActivityManager);
        }
    } catch (Exception e) {
        Log.w(TAG, e);
    }
}
Example #2
Source File: ActivityManagerPatch.java    From DeepInVirtualApp with MIT License 5 votes vote down vote up 
@Override
public void inject() throws Throwable {

    Field f_gDefault = ActivityManagerNative.class.getDeclaredField("gDefault");
    if (!f_gDefault.isAccessible()) {
        f_gDefault.setAccessible(true);
    }
    if (f_gDefault.getType() == IActivityManager.class) {
        f_gDefault.set(null, getHookObject().getProxyObject());

    } else if (f_gDefault.getType() == Singleton.class) {

        Singleton gDefault = (Singleton) f_gDefault.get(null);
        Field f_mInstance = Singleton.class.getDeclaredField("mInstance");
        if (!f_mInstance.isAccessible()) {
            f_mInstance.setAccessible(true);
        }
        f_mInstance.set(gDefault, getHookObject().getProxyObject());
    } else {
        // 不会经过这里
        throw new UnsupportedOperationException("Singleton is not visible in AMN.");
    }

    HookBinder<IActivityManager> hookAMBinder = new HookBinder<IActivityManager>() {
        @Override
        protected IBinder queryBaseBinder() {
            return ServiceManager.getService(Context.ACTIVITY_SERVICE);
        }

        @Override
        protected IActivityManager createInterface(IBinder baseBinder) {
            return getHookObject().getProxyObject();
        }
    };
    hookAMBinder.injectService(Context.ACTIVITY_SERVICE);
}