How to check if URL is valid in Android

Question

Is there a good way to avoid the \"host is not resolved\" error that crashes an app? Some sort of a way to try connecting to a host ( like a URL ) and see if it\'s even vali

Answer 1

Wrap the operation in a try/catch. There are many ways that a URL can be well-formed but not retrievable. In addition, tests like seeing if the hostname exists doesn't guarantee anything because the host might become unreachable just after the check. Basically, no amount of pre-checking can guarantee that the retrieval won't fail and throw an exception, so you better plan to handle the exceptions.