[英]Start/stop button in Android
Such a simple thing (hence username) but I just want a start/stop button, it's for a timer but for simplicity we'll go by "starty" and "stoppy" instead of a timer running and a timer not running. 这样的事情很简单(因此使用用户名),但是我只想要一个开始/停止按钮,它用于计时器,但是为了简单起见,我们将按“ starty”和“ stoppy”进行操作,而不是运行计时器和不运行计时器。 I don't want to ask for you to do my code, but if anyone could tell me what I'm missing I'd really love that. 我不想让您编写代码,但是如果有人可以告诉我我所缺少的内容,我将非常喜欢。
Thanks! 谢谢! :) :)
public void onClick(View v) {
if (helloWorld.getText().length() == 0
|| helloWorld.equals("stoppy")) {
helloWorld.setText("starty");
} else {
helloWorld.setText("stoppy");
}
}
我认为这可能是一个问题。.添加像helloWorld.getText()。trim.equals(“ stoppy”)来匹配两个字符串
use like that 这样使用
public void onClick(View v) {
if (helloWorld.getText().trim().length() == 0
|| helloWorld.getText().trim().equals("stoppy")) {
helloWorld.setText("starty");
} else {
helloWorld.setText("stoppy");
}
}
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