Xposed - Return class constructor - xposed

Question

Decompilled method:
private static l c(String str, String str2, String str3, String str4) {
l lVar;
k kVar = (k) m.get(str);
j jVar = (j) l.get(str);
if (kVar != null) {
lVar = new l(kVar, str2, str3);
} else if (jVar != null) {
lVar = new l(jVar, str2, str3);
} else {
lVar = new l(j.GENERIC, str2, str3);
}
lVar.a(str4);
return lVar;
}
How to use Xposed to return new l (jVar, str2, str3) with its specific values?
The beginning of the code I have is:
try {
findAndHookMethod("com.xiaomi.hm.health.ui.smartplay.h", lpparam.classLoader, "c", String.class, String.class, String.class, String.class, new XC_MethodHook() {
#Override
protected void afterHookedMethod(MethodHookParam param) {
String pkg = (String) param.args[0];
if (pkg == "com.perm.kate_new_6"){
return ???;
}
}
});
} catch (Throwable t) {
t.printStackTrace();
}

Answer 1

The XC_MethodHook's afterHookedMethod method needs to return void. I.e., the return of the hooked method needs be be set via setResult method of XC_MethodHook instead.
Internally it sets returnEarly to true which is checked in XposedBridge, preventing the original method code from executing, as well as any other hooks on the method.
If you just want to access whatever the method was originally going to return then getResult() should do.
If you need to return anything else, you can use reflection or Xposed's helpers (findClass) to retrieve the l, k and j classes, replicate the code if needed, create a new instance and return it via setResult. Alternatively you can use a XC_MethodReplacement hook instead as you will likely replicate its functionality anyways.