CODEWITHSUNDEEP
javaandroidreflectionandroid-sourcetelephony
DCoder
DCoder

Reputation: 3488

Android - Unable to access some classes under **package android.telephony**

I am trying to access classes stored under android.telephony package using reflection but for some classes I am getting ClassNotFoundException.

Can anyone tell me why some classes can be accessed and some are not even though this classes reside within the same package ?

Ex: public class TelephonyManager can be accessed using reflection as shown below

try {
Class<?> manager1 = Class.forName("android.telephony.TelephonyManager");
} catch (ClassNotFoundException e1) {
e1.printStackTrace();
}

public class SubscriptionManager cannot be accessed using reflection

try {
Class<?> subscriptionManager = Class.forName("android.telephony.SubscriptionManager");
//Throwing error
} catch (ClassNotFoundException e1) {
e1.printStackTrace(); 
}

both classes belong to the same package android.telephony

Upvotes: 2

Views: 692

Answers (1)

Yash Sampat
Yash Sampat

Reputation: 30601

Probably because SubscriptionManager was just added in API 22, and the phone or emulator you are using does not have Android 5.1.

That's how reflection is supposed to work! If a class is not present, the ClassNotFoundException is thrown.

Upvotes: 2

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