multithreading - How to stop multiple thread in android -

now going thread process,i have 1 thread , i'll run thread several time increasing count. if stop thread using thread instincts stop processing thread.

here had tried:

      if (null != image && server.threadcount <=10) {             startthread = new thread(mthread);             startthread.start();          }         else         {             server.threadcount--;         }     }       public static class runnablethread implements runnable {          public void run() {             server.threadcount++;         /*    if (server.threadcount <=10) {         log.v("count",string.valueof(server.threadcount));                 server.threadcount++;             } */         }     } } 

if use startthread.interrupt(); stop hole thread or current.

i need stop particular thread , if need stop whole thread.

this alternate solution provide here. first of must warn using count threads error prone , dangerous. may miss decrement or incrementing variable due concurrency issue. provide here solution above problem , alternate solution problem.

solution question :

1. first thing is, in above example have reference 1 thread when call startthread.interrupt(), result stop 1 thread have referenced @ time.

2. second suggest add reference list, specially concurrent collection or synchronized collection. can iterate thread references list , call interrupt() when wanted flag interruption.

ex :

list<thread> threadlist =      collections.synchronizedlist(new arraylist<thread>());     ......     startthread = new thread(mthread);          startthread.start();     threadlist.add(startthread);     ......     @override     public void ondestroy() {     super.ondestroy();      synchronized(threadlist) {    iterator<string> iterator = threadlist.iterator();     while (iterator.hasnext())       thread startthread = iterator.next();     startthread.interrupt();    }} 

3. stop thread according interrupted flag.

alternate , preferred solution :

1. create threadpool number of threads wanted use. can call shutdown() or shutdownnow()method achieve above.this call interrupts threads processing tasks. ex:

   executorservice executer = executors.newfixedthreadpool(10); executor.execute(yourrunnablehere); /*if have 10 can use                                loop execute runnables. */  ....... @override public void ondestroy() { super.ondestroy(); executor.shutdownnow(); } 

2. in above example create threadpool.

   • a threadpool pool of threads. submitted or executed tasks on executors processed threads threadpool. above create threadpool of 10 threads. 10 tasks can executed in parallel executor.
   • the executors used manage execution of tasks. used interrupt thread. short intro above example.

you can learn more executors , threadpool online or reading book "java concurrency in practice" , android "efficient android threading". hope helped. thank you.

short tutorial on executor :

you can use below link learn executors or other concurrency utilities quickly. gives knowledge 1 concurrency utilities. note: check side navigation bar other utilities.

short tutorial on executors