java 在开始另一个方法之前等待方法完成的简单方法
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Simple way to wait for a method to finish before starting another one
提问by user573382
I'm not familiar at all with Java threading :(. I have this class which, when called, constructs a new window (draw() method). The drawGUI() calls a processing method at the end (compare() method).
我对 Java 线程一点都不熟悉 :(。我有这个类，它在调用时会构造一个新窗口（draw() 方法）。drawGUI() 最后调用一个处理方法（compare() 方法） .
basically the structure is
基本上结构是
public static void draw() {
// draws stuff
compare();
}
The problem is that the window drawn by drawGUI() has some major visual artifacts till the processing (compare() ) is over.
问题是 drawGUI() 绘制的窗口在处理 (compare() ) 结束之前有一些主要的视觉伪影。
What is the simplest way I can implement to launch compare() after draw() has finished executing? Thank you
在 draw() 完成执行后，我可以实现启动 compare() 的最简单方法是什么？谢谢
采纳答案by Ovi Tisler
The simplestway is to just put your draw()code inside an asyncExec()inside your thread at the end
在最简单的办法是只要把你的draw()代码中的asyncExec()你的线程里面末
new Thread(new Runnable() { public void run() { //do long running blocking bg stuff here Display.getDefault().asyncExec(new Runnable() { public void run() { draw(); } } }).start();
new Thread(new Runnable() { public void run() { //do long running blocking bg stuff here Display.getDefault().asyncExec(new Runnable() { public void run() { draw(); } } }).start();
回答by Thor84no
Assuming that the reason you're getting the artefacts is that draw()hasn't had a chance to return, you can use a Thread.
假设您获得人工制品的原因是draw()没有机会返回，您可以使用Thread.
final T parent = this;
new Thread(new Runnable() {
public void run() {
parent.compare();
}
}).start();
(Where T is the type of the class that has your compare method).
（其中 T 是具有您的比较方法的类的类型）。
