How to hook into a method with int[] using xposed?

Question

I am trying to hook into this method in NotificationManagerService using Xposed:

void enqueueNotificationInternal(final String pkg, final String opPkg, final int callingUid,
            final int callingPid, final String tag, final int id, final Notification notification,
            int[] idOut, int incomingUserId)

For that I am using this hook:

XposedHelpers.findAndHookMethod("com.android.server.notification.NotificationManagerService", loadPackageParam.classLoader,
                "enqueueNotificationInternal", String.class, String.class, Integer.class, Integer.class, String.class,
                Integer.class, Notification.class, Integer.class, Integer.class, new XC_MethodHook(){
//More code...
});

However this is giving me an error in the Xposed log that the method could not be found. It is probably because of int[] idOut, because I am not sure what the class of that 'type' of that parameter is. Apparently not Integer.class, or is it and is something else wrong?

It appears you are trying to match "final int callingUid" to Integer.class, which is not correct. You can user Integer.TYPE or int.class for int primitives. — Jamie, Nov 17 '15 at 22:04
For idOut, you can do: Class.forName("[I") or you could do "new int[0].getClass()" — Jamie, Nov 17 '15 at 22:08
Thanks, it works now! I replaced Integer.class with int.class, and the integer array with new int[0].class — Wilco, Nov 19 '15 at 15:58

Marlon · Answer 1 · 2019-03-12T08:15:14.970

What worked for me was declaring an empty array variable and get its class:

int[] data = new int[0];

XposedHelpers.findAndHookMethod("com.class", 
    loadPackageParam.classLoader, 
    "methodName", 
    String.class, 
    data.getClass(), 
    new XC_MethodHook(){
        // code
    });

Another possible answer:

XposedHelpers.findAndHookMethod("com.class", 
    loadPackageParam.classLoader, 
    "methodName", 
    String.class, 
    int[].class, 
    new XC_MethodHook(){
        // code
    });

score 1 · Answer 2 · edited Apr 26 '22 at 15:52

1

This works:

XposedHelpers.findAndHookMethod("com.android.server.notification.NotificationManagerService", 
    loadPackageParam.classLoader, "enqueueNotificationInternal", String.class, 
    String.class, int.class, int.class, String.class, int.class,
    Notification.class, new int[0].class, int.class, new XC_MethodHook(){
        //More code...
    });

edited Apr 26 '22 at 15:52

Robert

39,162
17
99
152

answered Nov 19 '15 at 16:01

Wilco

53
1
6

score 1 · Answer 3 · answered Feb 14 '17 at 16:44

1

You can simply use:

 int[].class

other answers works but are the wrong way.

answered Feb 14 '17 at 16:44

Simone Aonzo

841
10
21

How to hook into a method with int[] using xposed?

3 Answers3

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