根据位置膨胀ListView中自定义视图(Inflating custom View in List

我有一个ListView ，我想膨胀的自定义View在某个位置。它实际上是第11项（第10位）。

所述getCount()方法返回11。

这里是顶部部分getView()方法：

public View getView(final int position, View convertView, ViewGroup parent) {
    final ViewHolder holder;
    if (convertView == null) {              
        if (position < 10) {
            convertView = mInflater.inflate(R.layout.standard, null);           
        } else {
            convertView = mInflater.inflate(R.layout.custom, null);
            Log.i(TAG, "Inflated custom layout");
        }
        Log.i(TAG, "getView, position = "+position);
        holder = new ViewHolder();
        holder.tv = (TextView) convertView.findViewById(R.id.tv);
        holder.radioButton = (RadioButton) convertView.findViewById(R.id.radioButton1);             
        convertView.setTag(holder);             
    } else {
        holder = (ViewHolder) convertView.getTag();
    }
    ...
    Log.i(TAG, "getView() : position = " + position);
}

下面是我在logcat中看到：

getView, position = 0
getView, position = 1
getView, position = 2

在getView日志的其余部分不显示; 我会假设，该行似乎都达路getView, position = 10 。

并且该行： convertView = mInflater.inflate(R.layout.custom, null); 永远不会被调用，因为Inflated custom layout不会在logcat中显示出来。

这很有趣，但因为底部的logcat总是叫（我向下滚动ListView ）：

getView() : position = 0
getView() : position = 1
getView() : position = 2
getView() : position = 3
getView() : position = 4
getView() : position = 5
getView() : position = 6
getView() : position = 7
getView() : position = 8
getView() : position = 9
getView() : position = 10

为什么我的自定义布局不膨胀？

Answer 1:

您需要充气布局时， getView()方法View convertView不为空。该View是从返回getView()将被重用。如果检查的观点是空和膨胀会膨胀，只有当它第一次返回View 。

public View getView(final int position, View convertView, ViewGroup parent) {
    final ViewHolder holder;
    if (convertView == null) {              
        if (position < 10) {
            convertView = mInflater.inflate(R.layout.standard, null);           
        }
        Log.i(TAG, "getView, position = "+position);
        holder = new ViewHolder();
        holder.tv = (TextView) convertView.findViewById(R.id.tv);
        holder.radioButton = (RadioButton) convertView.findViewById(R.id.radioButton1);             
        convertView.setTag(holder);             
    } else {
        holder = (ViewHolder) convertView.getTag();
    }
    ...

    if(position > 10) {
         convertView = mInflater.inflate(R.layout.custom, null);
         Log.i(TAG, "Inflated custom layout");
    }

    Log.i(TAG, "getView() : position = " + position);
}