CODEWITHSUNDEEP
androidandroid-ndkjava-native-interface
simon
simon

Reputation: 2164

Android NDK - Save "native objects" between native code calls

Right now I have a native function which sort of does this:

Object o = new Object();
while (!o.done()) { o.compute(); }
return o.result();

This computing can take a while and I would want the UI in Android to be update with some kind of progress bar. So what I need is three different native functions, one for each step above. The problem I'm having is how to save the "native object" inbetween calls. Any tips?

Thanks

Upvotes: 0

Views: 441

Answers (1)

BitBank
BitBank

Reputation: 8715

Your Android NDK C code statics act like statics do in normal application programming. As long as the current process (app) is running, your data will be preserved. If you have a method that will do a lot of processing, call it from a Java thread to work in the background like this:

  new Thread(new Runnable()
  {
      public void run()
      {
      <call native method here>
      }
  }).start();

Upvotes: 2

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