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[英]Different color for each row in a ListView, I want to drag the row and each row's background color exchange too. how to do it
[英]How can I set different background color for each row in listview?
在getView(...) method
if (position == 0) {
view.setBackgroundResource(R.drawable.bg_list_even);
} else if (position == 1) {
view.setBackgroundResource(R.drawable.bg_list_odd);
} else...
更新::
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
View view = convertView;
ViewHolder holder;
if (view == null) {
LayoutInflater inflater = (LayoutInflater) activity
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = inflater.inflate(R.layout.row, null);
holder = new ViewHolder();
view.setTag(holder);
} else {
holder = (ViewHolder) view.getTag();
}
holder.title = (TextView) view.findViewById(R.id.txttitle);
holder.description = (TextView) view.findViewById(R.id.txtdesc);
holder.title.setText("Title" + position);
holder.description.setText("Desc" + position);
//here set your color as per position
if (position == 0) {
view.setBackgroundResource(R.drawable.bg_list_even);
} else if (position == 1) {
view.setBackgroundResource(R.drawable.bg_list_odd);
}
return view;
}
持有人階級
public class ViewHolder {
public TextView title;
public TextView description;
}
如下所示制作一個數組作為列表項目的數量我想你有五個項目
int[] color_arr={Color.BLUE,Color.CYAN,Color.DKGRAY,Color.GREEN,Color.RED};
以及如下所示在客戶端適配器的getView方法之后
public View getView(int position, View convertView, ViewGroup parent)
{
LayoutInflater inflater = getLayoutInflater();
View row=convertView;
row = inflater.inflate(R.layout.listview_custome, parent, false);
row.setBackgroundColor(color_arr[position]);// this set background color
TextView textview = (TextView) row.findViewById(R.id.tv_list);
ImageView imageview = (ImageView) row.findViewById(R.id.iv_list);
textview.setText(data_text[position]);
imageview.setImageResource(data_image[position]);
return (row);
}
正如您所說,您已經使用自定義適配器進行列表視圖,那么您需要做的就是下面。 在適配器的getView
方法中,您需要設置列表行xml的父視圖的背景顏色。
public View getView(int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = getLayoutInflater();
View rowView = convertView;
rowView = inflater.inflate(R.layout.listview_custome, parent, false);
rowView.setBackgroundColor(color_arr[position]);// this set background color
TextView textview = (TextView) rowView.findViewById(R.id.tv_list);
ImageView imageview = (ImageView) rowView.findViewById(R.id.iv_list);
textview.setText(data_text[position]);
imageview.setImageResource(data_image[position]);
if (position == 0) {
rowView.setBackgroundColor(Color.BLUE);
}
else if (position % 2 == 1) {
rowView.setBackgroundColor(Color.RED);
}
else if (position % 2 == 0) {
rowView.setBackgroundColor(Color.BLUE);
}
return (rowView);
}
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