I want to do a very simple thing. I have a listview in my application which I dynamically add text to. But, after a certain point, I would like to change the color of the text inside the listview. So, I made a XML defining my custom list item, and subclassed the ArrayAdapter. But, whenever I call the add() method on my custom ArrayAdapter, an item does get added to the listview, but the text is not placed into it.
Here's my XML: `
<TextView xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/list_content" android:textSize="8pt"
android:gravity="center" android:layout_margin="4dip"
android:layout_width="fill_parent" android:layout_height="wrap_content" android:textColor="#FF00FF00"/>
And my ArrayAdapter subclass:
private class customAdapter extends ArrayAdapter<String> {
public View v;
public customAdapter(Context context){
super(context, R.layout.gamelistitem);
}
@Override
public View getView(int pos, View convertView, ViewGroup parent){
this.v = convertView;
if(v==null) {
LayoutInflater vi = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
v=vi.inflate(R.layout.gamelistitem, null);
}
if(timeLeft!=0) {
TextView tv = (TextView)v.findViewById(R.id.list_content);
//tv.setText(str[pos]);
tv.setTextColor(Color.GREEN);
}
else {
TextView tv = (TextView)v.findViewById(R.id.list_content);
//tv.setText(str[pos]);
tv.setTextColor(Color.RED);
}
return v;
}
}
I'm sure I'm doing something horribly wrong, but I'm still a little new to Android.
Thank you! `
You need to set the text in getView()
. Get the value to set with getItem(pos)
, then set it.
public View getView(int pos, View convertView, ViewGroup parent){
this.v = convertView;
if(v==null) {
LayoutInflater vi = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
v=vi.inflate(R.layout.gamelistitem, null);
}
// Moved this outside the if blocks, because we need it regardless
// of the value of timeLeft.
TextView tv = (TextView)v.findViewById(R.id.list_content);
tv.setText(getItem(pos));
if(timeLeft!=0) {
//TextView tv = (TextView)v.findViewById(R.id.list_content);
//tv.setText(str[pos]);
tv.setTextColor(Color.GREEN);
}
else {
//TextView tv = (TextView)v.findViewById(R.id.list_content);
//tv.setText(str[pos]);
tv.setTextColor(Color.RED);
}
return v;
}
Also, is there a reason you're storing v
as a member variable, rather than just inside the function?
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