在UI线程上运行方法 [英] Running a method on UI thread

问题描述

我的问题似乎很简单，但逻辑看来我似乎不对。
我试图使用UI线程运行其他类的方法。我可以通过这样包装我的方法来做到这一点

My question seems very simple but i can't seem to the logic right. Am trying to run methods from other classes using the UI thread. I could do this this simply by wrapping my methods like this

    runOnUiThread(new Runnable() {
    public void run() {
        Log.d("UI thread", "I am the UI thread");
           ui.myMethod("changetext");
    }
});

但我的目标是要创建一个包装方法的类在UI线程上，因为在单个类中几乎有5次 runOnUiThread（）似乎很麻烦。

but my goal is to have a class that wraps methods to be run on the UI thread as having runOnUiThread() almost 5 times in a single class seems very untidy. Any pointers?

推荐答案

如果重复调用相同的UI方法，则可以通过创建<$来简化客户端代码。 c $ c> Runnable 的方法：

If you're calling the same UI method repeatedly, you could streamline the client code by creating the Runnable in a method:

private void updateUi(final String message) {
   runOnUiThread(new Runnable() {
      public void run() {
         ui.myMethod(message);
      }
   });
}

然后，您的客户代码只需调用 updateUi（ changetext）。 （此代码假定 ui 是最终的。如果不是，则可以传递最终引用。）

Then your client code would simply call updateUi("changetext"). (This code assumes that ui is final. If not, you could pass in a final reference.)

如果您每次都调用一个不同的UI方法，但这并不会给您带来任何好处，因为您需要为每个UI方法使用单独的更新方法。您现有的代码非常优雅。

If you're calling a different UI method every time, this doesn't gain you anything as you'd need a separate update method for each UI method. Your existing code is as elegant as it gets.

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