可我怎么LOOP几个按钮看法？ [英] How can I LOOP over several Button Views?

问题描述

比方说我在XML文件中定义几个按钮，最初它们设置为禁用。

Say for example I define several buttons in my XML file and initially set them as disabled.

<Button 
android:text="Off"
android:id="@+id/Button0"
android:enabled="false">
</Button>
<Button android:text="Off"
android:id="@+id/Button1"
android:enabled="false">
</Button>
<Button android:text="Off"
        android:id="@+id/Button2"
    android:enabled="false">
</Button>
<Button android:text="Off"
    android:id="@+id/Button3"
        android:enabled="false">
</Button>

在我的code后来我再要启用所有的按钮所以理论上讲，这应该在一个循环中执行，但我不能工作了我怎么能访问按钮INS循环。例如我不想把几个语句：

Later on in my code I then want to enable ALL the buttons so ideally this should be done in a loop but I cannot work out how I can get access to the buttons ins a loop. e.g. I do not want to put several statements:

Button b = (Button)findViewById(R.id.Button0);
/* Do some action on button0 */
b = (Button)findViewById(R.id.Button1);
/* Do some action on button1 */
/* And continue with explicit statements for each button*/

那么，如何可以实现上述的一个循环？

So how can I achieve the above in a loop?

推荐答案

我的建议是：创建一个包含按钮的标识整数的静态最后一个数组，例如：

My advice: Create a static final array of integers containing the IDs of the buttons, e.g.:

private static final int[] BUTTONS = {
    R.id.Button0,
    R.id.Button1,
    ...
};

然后你就可以在该迭代。

Then you can iterate over that.

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