Yes, that's what I mean. What I didn't know was that Even though I never set 'what' value to 0 in handler.post(new Runnable()), The runnable is removed. (The doc didn't say default value of 'what' is 0!!!)
2013/4/12 bob <[email protected]> > That code does not remove the 0th Message. > > > It removes all messages that have a "what" value of 0. > > > The "what" is apparently an id associated with the messages (not > necessarily unique) : > > > <https://lh4.googleusercontent.com/-NFUf7VOHEOU/UWgawLxDSKI/AAAAAAAAAW0/8AjbjmNtl_Y/s1600/what.png> > > > > Thanks. > > > > On Thursday, April 11, 2013 8:20:06 PM UTC-5, NoraBora wrote: >> >> Sometimes you use a handler as a member variable and use it for >> sendMessages(), removeMessage(), post(). >> I just found out something. >> >> Say you call these >> handler.sendMesssage(0) // 1 >> handler.post(new Runnable()) // 2 >> handler.post(new Runnable()) // 3 >> >> and call this >> handler.removeMessage(0) >> >> then this will remove 2, 3 as well as 1 >> because removeMessage/hasMessage doesn't check runnable and posted >> message's what value is 0 by default. >> >> Some people could think this as a bug but it's too late to change such a >> basic api so >> I think documentation should mention this. >> > -- > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en > --- > You received this message because you are subscribed to a topic in the > Google Groups "Android Developers" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/android-developers/9kiGk35F-Ik/unsubscribe?hl=en > . > To unsubscribe from this group and all its topics, send an email to > [email protected]. > For more options, visit https://groups.google.com/groups/opt_out. > > > -- -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups "Android Developers" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
