Is it possible to change default sms application on Android 4.4 without user knowledge? I'm trying to do it on a ROOTED Galaxy S5 using reflection and invoking system methods, so here is what I done so far:
Created small app that implements all things needed for app to be a SMS manager (as per http://android-developers.blogspot.in/2013/10/getting-your-sms-apps-ready-for-kitkat.html) and I can make it default sms app but Android asks me to confirm that in dialog. Now I'm exploring android source code and I found something in this class:
So I'm trying to invoke internal method:
SmsApplication.setDefaultApplication(mNewSmsApplicationData.mPackageName, this);
via reflection and here is how I done it so far:
Class[] params = new Class[2];
params[0]=String.class;
params[1]=Context.class;
Class cls = null;
try {
cls = Class.forName("com.android.internal.telephony.SmsApplication");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
Method method = null;
try {
method = cls.getDeclaredMethod("getSmsApplicationData", params);
} catch (NoSuchMethodException e) {
e.printStackTrace();
}
try {
Object[] params2 = new Object[2];
params2[0]=getPackageName();
params2[1]=getApplicationContext();
Log.d("Current package", getPackageName());
method.invoke(null, params2);
} catch (InvocationTargetException e) {
e.printStackTrace();
}
And I made this app system app and put it into folder /system/priv-app, rebooted phone and started it successfully with adb, but when I click on the button that executes code above, nothing happens. No errors, no log output, but default app is still Messaging (com.android.mms).
Is there any way to do this?
