java 如何在循环时暂停直到按下按钮
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How to pause while loop until a button is pressed
提问by Rhiokai
How do I pause a while loop until a button is pressed?
如何暂停 while 循环直到按下按钮？
I want to have a while loop which restarts everytime a button is pressed. Is this possible?
我想有一个 while 循环，每次按下按钮时都会重新启动。这可能吗？
回答by syb0rg
Answer 1
答案 1
You could have a button that will exit the loop when it is pressed, and then call the method immediately after it exits.
你可以有一个按钮，当它被按下时将退出循环，然后在它退出后立即调用该方法。
public void process(){
boolean done = false;
while(!done) {
// do stuff
if (buttonPress) done = true; // ends loop
else buttonPress = false; // insures buttonPress is false, not needed
}
}
Answer 2
答案 2
You could also just sleep the thread for a certain amount of time, then it will automatically continue when the thread "wakes up".
您也可以让线程休眠一段时间，然后当线程“唤醒”时它会自动继续。
Thread thread = new Thread() {
boolean isRunning = true;
public void run() {
while(isRunning){
// do stuff
if(buttonPress) Thread.sleep(4000); // or however long you want
}
}
};
thread.start();
Answer 3
答案 3
Have a loop within the loop
在循环中有一个循环
while(listening) {
while(!buttonPress) {
}
buttonPress=false;
// do stuff
}
回答by Auslay
You could use the following code:
您可以使用以下代码：
(System.in.available() == 0){
//Do whatever you want
}
(System.in.available() == 0){
//Do whatever you want
}
回答by Shreshth Kharbanda
while (button.isPressed()) {
break;
}
while (!button.isPressed()) {
// do your things...
}
