如何管理按钮的阵列上setOnClickListener [英] How to manage setOnClickListener on a array of buttons

问题描述

我有按钮的动态数组，我想知道如何处理每一个按钮的onclick？

I have a dynamic array of buttons and I would like to know how to handle the onclick on every button?

感谢

推荐答案

我不认为有必要建立一个新的OnClickListener为每个按钮 - 所有的按钮可以共享一个侦听器

I don't see a need to create a new OnClickListener for each button -- all the buttons could share a single listener.

private OnClickListener myListener = new OnClickListener() {
  public void onClick(View v) {
    Object tag = v.getTag();
    // Do something depending on the value of the tag
  }
};

...

for (int i=0; i < btns.length; ++i) {
  btns[i].setOnClickListener(myListener);
  btns[i].setTag(some_identifying_information);
}

当然，你的可能的为每个按钮创建一个独特的OnClickListener，并利用这种方式：

Of course, you could create a unique OnClickListener for each button, and take advantage this way:

for (int i=0; i < btns.length; ++i) {
  final Button btn = btns[i];
  btn.setOnClickListener(new OnClickListener() {
    public void onClick(View v) {
      // do something depending on the value of btn, which you're allowed
      // to reference here because it was declared final above.
    }
  });
}

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