How to use hidden class in hook?

pyler said:

I have something like this..

Code:

XposedHelpers.findAndHookMethod(packageManagerService,
				"installPackage", Uri.class, IPackageInstallObserver.class, int.class, String.class, new XC_MethodHook()
bla bla...

But IPackageInstallObserver.class is not resolved (hidden, not in SDK). So, devs, how can I use it? Any workaround? I just need it to make hook working. For info, I am going to hook flags, not observer.

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XposedHelpers.findAndHookMethod("com.android.server.pm.PackageManagerService", null,
				"installPackage", Uri.class, "android.content.pm.IPackageInstallObserver", int.class, String.class, new XC_MethodHook()
bla bla...

rovo89 said:

Simply use the string "android.content.pm.IPackageInstallObserver" instead of IPackageInstallObserver.class. You can do the same for the first class name:

Code:

XposedHelpers.findAndHookMethod("com.android.server.pm.PackageManagerService", null,
				"installPackage", Uri.class, "android.content.pm.IPackageInstallObserver", int.class, String.class, new XC_MethodHook()
bla bla...

(classloader is null here because the class is part of the BootClassLoader, usually you would use lpparam.classLoader instead)

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XposedHelpers.findAndHookMethod("com.example.main", null,
	"a", "com.example.Details", int.class, String.class, new XC_MethodHook() {
	@Override
	protected void beforeHookedMethod(MethodHookParam param)
			throws Throwable {
			int i = (Integer)param.args[1];
			String s = (String)param.args[2];
			.........					
			}
});

aoei said:

I can get the parameters like this: int i = (Integer)param.args[1]; String s = (String)param.args[2];
but what about the first one?
how to define "(Details)param.args[0]"?

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rovo89 said:

That's not possible. You have to assign it to an Object variable and then keep using reflection to get/set its fields and call methods. The methods in XposedHelpers make this very easy.

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rovo89 said:

That's not possible. You have to assign it to an Object variable and then keep using reflection to get/set its fields and call methods. The methods in XposedHelpers make this very easy.

Click to expand...

Click to collapse