Android Thread AsyncTask handler 应用区别
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Android Thread handler
AsyncTask
都可以实现异步处理
AsyncTask 的出现就是为了 使UI 处理 更easy ,所以和UI 线程有关的 用 AsyncTask 最好
Thread handler 主要是在线程里面,
Difference Handler
and AsyncTask
: Use AsyncTask
when Caller thread is a UI Thread. This is what android document says:
AsyncTask enables proper and easy use of the UI thread. This class allows to perform background operations and publish results on the UI thread without having to manipulate threads and/or handlers
I want to emphasize on two points:
1) Easy use of the UI thread (so, use when caller thread is UI Thread).
2) No need to manipulate handlers. (means: You can use Handler instead of AsyncTask, but AsyncTask is an easier option).
There are many things in this post I haven't said yet, for example: what is UI Thread, of why it easier. You must know some method behind each kind and use it, you will completely understand why..
@: when you read Android document, you will see:
Handler allows you to send and process Message and Runnable objects associated with a thread's MessageQueue
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