如何在Android延迟后调用方法 [英] How to call a method after a delay in Android

问题描述

我希望能够在指定的延迟后调用以下方法.在目标 c 中有类似的东西:

I want to be able to call the following method after a specified delay. In objective c there was something like:

[self performSelector:@selector(DoSomething) withObject:nil afterDelay:5];

android 中是否有与 java 相同的方法?例如，我需要能够在 5 秒后调用一个方法.

Is there an equivalent of this method in android with java? For example I need to be able to call a method after 5 seconds.

public void DoSomething()
{
     //do something here
}

推荐答案

Kotlin

    Handler(Looper.getMainLooper()).postDelayed({
      //Do something after 100ms
    }, 100)

Java

    final Handler handler = new Handler(Looper.getMainLooper());
    handler.postDelayed(new Runnable() {
      @Override
      public void run() {
        //Do something after 100ms
      }
    }, 100);

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