android中的textview.getLineCount始终为0 [英] textview.getLineCount always 0 in android

问题描述

我正在尝试动态调整 textview 的大小，但 getlinecount() 方法总是返回 0，即使在 settext() 和 invalidate() 之后也是如此.我正在使用以下代码:

I'm trying to dynamically resize my textview but getlinecount() method always returns me 0 even after settext() and invalidate(). I'm using the following code:

if (convertView == null) {
    convertView = lInflater.inflate(R.layout.listview, null);
    holder = new ViewHolder();
    holder.text2 = (TextView)convertView.findViewById(R.id.TextView02);
    convertView.setTag(holder);
} else {
    holder = (ViewHolder)convertView.getTag();
}

holder.text2.setText(arr2[position]);
holder.text2.invalidate();

int lineCnt = holder.text2.getLineCount();

holder是一个静态类，如下:

holder is a static class as follows:

static class ViewHolder {
    TextView text2;
}

holder 包含非 null text2 且内容集也非 null.

holder contains non null text2 and the content set is also non null.

推荐答案

我知道这个问题已经很老了，但万一有人来这里寻找实际答案:

I know this question is quite old, but in case anyone comes here looking for the actual answer:

holder.text2.setText(arr2[position]);
holder.text2.post(new Runnable() {
    @Override
    public void run() {
        int lineCnt = holder.text2.getLineCount();
        // Perform any actions you want based on the line count here.
    }
});

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