获取共享父与当前视图中的其他子 [英] Get other child that shares parent with the current view

问题描述

我要创建一个表，其中每一行包含文本和一个按钮。现在，当该按钮为pressed我想打电话给使用按钮旁边的文本价值的事件。我如何可以访问的TextView的内容？我可以得到 ViewParent 我的按钮，这应该是该行的，但有没有方法来访问该意见的孩子。

 私人OnClickListener updateButtonListener =新OnClickListener（）{
     公共无效的onClick（视图v）{
         ViewParent父= v.getParent（）;
         //这里我想获得该ViewParent的第一个孩子
      }
};
 

解决方案

如果你能得到一个 ViewParent ，你可以将其转换为 ViewGroup中并获得查看需要。您的code将是这样的：

 的TextView TextView的= NULL;
ViewGroup中排=（ViewGroup中）v.getParent（）;
为（中间体itemPos = 0; itemPos＆其中; row.getChildCount（）; itemPos ++）{
    查看查看= row.getChildAt（itemPos）;
    如果（查看的instanceof的TextView）{
         TextView的=（TextView的）观点; //找到了！
         打破;
    }
}
 

就是这样，假设你只有一个的TextView 在你行。

I'm creating a table in which each row contains text as well as a button. Now when that button is pressed I want to call an event that uses the value of the text next to the button. How can I access the content of that TextView? I can get the ViewParent of my button, which should be the row, but there's no method to access that views children.

private OnClickListener updateButtonListener = new OnClickListener(){
     public void onClick(View v) {
         ViewParent parent = v.getParent();
         //Here I would like to get the first child of that ViewParent
      }
};

解决方案

If you can get a ViewParent, you can then cast it to a ViewGroup and get the View you need. Your code will look like this:

TextView textView = null;
ViewGroup row = (ViewGroup) v.getParent();
for (int itemPos = 0; itemPos < row.getChildCount(); itemPos++) {
    View view = row.getChildAt(itemPos);
    if (view instanceof TextView) {
         textView = (TextView) view; //Found it!
         break;
    }
}

That's it, assuming you have only one TextView in your row.

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