机器人view.getId（）返回-1 [英] android view.getId() returns -1

问题描述

我需要改变文本的一系列头单元格中的数据表。
为了实现这一目标，我需要检索和存储分配给这些细胞中的视图ID，这样他们就可以在以后使用，以确定这些细胞的看法。
但是，当我试图得到一个ID为刚刚充电池来看，它总是返回-1。

I need to change the text for a range of header cells in the data table.
In order to achieve that, I would need to retrieve and store the view ids assigned to those cells, so they can be used later to identify those cell views.
However, when I try to get an ID for the just inflated cell view, it always returns -1.

下面是我的示例code：

Here is my sample code:

@Override
public View getView(final int row, final int column, View converView, ViewGroup parent) {
    if (converView == null) {
        converView = inflater.inflate(getLayoutResource(row, column), parent, false);
        if (row == -1){
            int viewId = converView.getId();
            setHeaderId(viewId, column+1);

        }  
    }
...     
}

在converView.getId（）在code以上返回-1，尽管视图ID已经被分配，并且是code调试过程中可见的事实。例如，我可以看到在调试过程如下： converView =的LinearLayout（ID = 830042440680）

The converView.getId() in the code above returns -1, despite the fact that the view id has already been assigned and is viewable during the code debugging. For example, I can see the following during debug: converView= LinearLayout (id= 830042440680)

任何想法，为什么我收到-1（= NO_ID）在上述code？

Any idea why I am getting -1 (= NO_ID) in the above code ?

推荐答案

从Android LayoutInflater文档：

From the Android LayoutInflater documentation:

从指定的XML资源充气一个新的视图层次。

Inflate a new view hierarchy from the specified xml resource.

所以，当你调用

converView = inflater.inflate(getLayoutResource(row, column), parent, false);

converView仅通过布局充气创造，没有身份证。您应该手动设置ID这样

converView is just create by your layout inflater and have no ID. You should set ID manually like this

converView.setId(YOUR_GENERATED_ID);

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