Android Handler 消息队列

Question

I am calling

handler.postDelayed(runnable, time); handler.post(runnable2);

Will the second runnable not get handled until the first message in the queue does, after "time" has passed?

Answer 1

No. The second runnable will be posted immediately and would execute before the first -- depending on the time parameter in the first, anyway. If you post the first with a negligible delay for time it's possible it could execute first. I don't believe there's any guarantee in place that it wouldn't.