英文:
Change the text color of one row of a ListView
问题
我有一个 ListView，它被正确地填充了，并且显示出了所有的项目。我想知道如何改变其中一行（索引 = 0）的颜色。我尝试使用 ListView，并通过 listView.getChildAt(0) 达到它的子项，但我没有看到任何改变文本颜色的方法（仅限于背景颜色）。
以防万一需要，我会贴出我用来更新 ListView 的方法：
String[] aux = new String[namesList.size()];
namesList.toArray(aux);
arrayAdapter = new ArrayAdapter<>(getActivity(), R.layout.row, aux);
listView.setAdapter(arrayAdapter);
if(from)
listView_address.getChildAt(0) // 没有可用的方法
setSelectNameListeners();
英文:
I have a ListView which is correctly filled and it displays all its items. I was wondering how could I change the color of one of its rows (index = 0). I was trying to use the ListView and reaching its child using listView.getChildAt(0) but I do not see any method to change the color of the text (just for the background)
Just in case is needed I post the method that I use to update the ListView
String[] aux = new String[namesList.size()];
namesList.toArray(aux);
arrayAdapter = new ArrayAdapter<>(getActivity(), R.layout.row, aux);
listView.setAdapter(arrayAdapter);
if(from)
listView_address.getChildAt(0) // Not a method which I could use
setSelectNameListeners();
答案1
得分: 2
你不能改变字符串的颜色，但可以改变文本视图的颜色。
字符串只是告诉要显示什么，文本视图将负责如何显示信息，现在要改变文本的颜色，您需要一个自定义适配器，并使该适配器返回您所需的项目，获取第一个项目并更改其颜色。
英文:
You cannot change the color of a String, however you can change color of a textview.
A String only tells what to display, a textView will be responsible for how to display the information, now to change the color of the text you'll need a custom adapter and make that adapter return you the items, you get the 1st item and change it's color.
答案2
得分: 1
您可以尝试以下代码：
String[] aux = new String[namesList.size()];
namesList.toArray(aux);
arrayAdapter = new ArrayAdapter<>(getActivity(), R.layout.row, aux) {
@Override
public View getView(int position, View convertView, ViewGroup parent) {
if (position == 0) {
// 从ListView获取项目
View view = super.getView(position, convertView, parent);
// 为每个ListView项目初始化一个TextView
TextView tv = (TextView) view.findViewById(android.R.id.text1);
// 设置TextView（ListView项目）的文本颜色
tv.setTextColor(Color.RED);
// 使用TextView生成ListView项目
return view;
}
}
};
listView.setAdapter(arrayAdapter);
英文:
Yo can try this:
String[] aux = new String[namesList.size()];
namesList.toArray(aux);
arrayAdapter = new ArrayAdapter<>(getActivity(), R.layout.row, aux){
@Override
public View getView(int position, View convertView, ViewGroup parent){
if(position == 0){
// Get the Item from ListView
View view = super.getView(position, convertView, parent);
// Initialize a TextView for ListView each Item
TextView tv = (TextView) view.findViewById(android.R.id.text1);
// Set the text color of TextView (ListView Item)
tv.setTextColor(Color.RED);
// Generate ListView Item using TextView
return view;
}
}
};
listView.setAdapter(arrayAdapter);
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