如何改变一个项目的背景下，从列表视图中的code [英] How to change background of one item from listview in code

问题描述

我继承了ListActivity，我需要在某些行code背景颜色改变。如何做到这一点，例如第一行设置黄色背景？

 公共类AlarmsActivity扩展ListActivity {
    私人活动currentActivity;

    公共无效的onCreate（包savedInstanceState）{
        super.onCreate（savedInstanceState）;

        setListAdapter（新ArrayAdapter＆LT;字符串＆GT;（这一点，R.layout.alarms，DATA））;

        currentActivity =这一点;

        ListView的LV = getListView（）;
        lv.setTextFilterEnabled（真正的）;

        lv.setOnItemClickListener（新OnItemClickListener（）{

            公共无效onItemClick（适配器视图＆LT;＆GT;为arg0，查看ARG1，INT ARG2，
                    长ARG3）{
                Toast.makeText（getApplicationContext（），
                        （（TextView中）ARG1）.getText（），Toast.LENGTH_SHORT）.show（）;


            }
        }）;
    }

    静态最终的String []数据=新的String [] {姓名，姓氏，地址，城};


}
 

解决方案

取颜色一些数组，然后在getView方法设置视图颜色的POS机。例如：

 私人INT []颜色=新INT [] {0xfffff000，为0xffff0000，......};
 

在 getView（）这样写：

  view.setBackgroundColor（颜色[POS]）;
 

在这里pos是在颜色的索引值[]

I have inherited ListActivity and I need to change in code background color of some rows. How to do that, for example first row to set YELLOW background ?

public class AlarmsActivity extends ListActivity {
    private Activity currentActivity;

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setListAdapter(new ArrayAdapter<String>(this, R.layout.alarms, DATA));

        currentActivity = this;

        ListView lv = getListView();
        lv.setTextFilterEnabled(true);

        lv.setOnItemClickListener(new OnItemClickListener() {

            public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
                    long arg3) {
                Toast.makeText(getApplicationContext(),
                        ((TextView) arg1).getText(), Toast.LENGTH_SHORT).show();


            }
        });
    }

    static final String[] DATA = new String[] {"Name","Last Name","Address","City" };


}

解决方案

Take some array of colors and then in getView method set the view color to the pos. for example :

private int[] colors=new int[]{0xfffff000, 0xffff0000, .....};

in getView() write this:

view.setBackgroundColor(colors[pos]);

here pos is the index value in the colors[]

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