CODEWITHSUNDEEP
javaandroid
mittelmania
mittelmania

Reputation: 3571

Starting a WiFi scan and blocking the thread until the results are ready

My main objective is to write a method in Java that could initiate a WiFi scan, wait for the scan results and return them.

I know that I have to register a BroadcastReceiver and wait for Android to broadcast an Intent with the scan results. My question is - is it possible to block the thread from the moment I called startScan() until the receiver's onReceive() method is triggered? I tried using a wait()/notify() pair and using a CountDownLatch - both blocked the thread, however onReceive was never called.

EDIT: The whole procedure takes place in a worker thread, I'm not blocking the UI thread.

How can this be done?

Upvotes: 1

Views: 135

Answers (1)

Booger
Booger

Reputation: 18725

You shouldn't block the UI thread - ever. When you do, your device will stop responding, and this is terrible UI.

You can block other operations within your app (but disabling buttons, etc) - but you should never, never block the UI thread (and the OS makes it hard to do so).

Upvotes: 1

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