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Android中的Looper对象详细介绍

2019年07月24日  | 移动技术网IT编程  | 我要评论

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java 官网对looper对象的说明：


public class looperextends object
class used to run a message loop for a thread. threads by default do not have a message loop associated with them; to create one, call prepare() in the thread that is to run the loop, and then loop() to have it process messages until the loop is stopped.

most interaction with a message loop is through the handler class.

this is a typical example of the implementation of a looper thread, using the separation of prepare() and loop() to create an initial handler to communicate with the looper.

复制代码 代码如下:

  class looperthread extends thread {
      public handler mhandler;

      public void run() {
          looper.prepare();

          mhandler = new handler() {
              public void handlemessage(message msg) {
                  // process incoming messages here
              }
          };

          looper.loop();
      }
  }

主要方法：

static void loop() ：  run the message queue in this thread.
static void prepare() ：  initialize the current thread as a looper.

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