question: public void cancelRequestsByTAG ( Object TAG , boolean mayInterruptIfRunning ) { if ( TAG == null ) { log . d ( LOG_TAG , "cancelRequestsByTAG, passed TAG is null, cannot proceed" ) ; return ; } for ( List < RequestHandle > requestList : requestMap . values ( ) ) { if ( requestList != null ) { for ( RequestHandle requestHandle : requestList ) { if ( TAG . equals ( requestHandle . getTag ( ) ) ) requestHandle . cancel ( mayInterruptIfRunning ) ; } } } }
target:  Allows you to cancel all requests currently in queue or running, by set TAG, if passed TAG is null, will not attempt to cancel any requests, if TAG is null on RequestHandle, it cannot be canceled by this call