在列表视图中动态更改(列表项)TextView的颜色 [英] Dynamically change color of (List item)TextView in Listview

问题描述

我正在使用ListView，如下所示，其文件名为browser.xml.

I am using a ListView as shown below in filename browse.xml.

<ListView
   android:id="@+id/listView1"
   android:layout_width="250dp"
   android:layout_height="match_parent"
   android:layout_alignParentLeft="true"
   android:layout_below="@+id/relativeLayout1" >

</ListView>

然后我在onCreate()方法内部填充此listView:

And I am filling this listView inside onCreate() method as:

files1=new ArrayList<String>();
File sdcard=Environment.getExternalStorageDirectory();
files1 =  getListFiles(new File(sdcard.getAbsolutePath()+File.separatorChar)); 
ArrayAdapter<String> fileList =new ArrayAdapter<String>(this, R.layout.row,files1);

setListAdapter(fileList);

row.xml如下所示:

row.xml is shown below as:

<?xml version="1.0" encoding="utf-8"?>
<TextView 
   xmlns:android="http://schemas.android.com/apk/res/android"
   android:id="@+id/rowtext"
   android:layout_width="fill_parent"
   android:layout_height="40dp"
   android:textSize="20dp" 
   android:textColor="#000000"   
   android:background="#FFFFFF"/>

整个程序在listView上显示sdcard的所有文件，并在单击任何listitem时，将该文件名保存到sharedPrefernce中.现在，我想在ListView中更改文件名(列表项)的文本颜色在SharedPrefernce中.

This whole program is am showing all the files of sdcard at listView and on click of any listitem, am saving that file name into sharedPrefernce..Now I want to change the text color of file name(List items) in the ListView which are there in SharedPrefernce..

:这是在使用ArrayAdapter默认构造函数列出列表视图中的所有项目

请给我一些建议. 谢谢.

Pls suggest me something.. Thanks..

推荐答案

我们可以在Adapter的getView()中动态更改列表项的文本颜色.

We can change the textcolor dynamically for list item in the getView() of Adapter.

public View getView(int position, View convertView, ViewGroup parent) {
    View row = convertView;

    if (row == null) {
        row = LayoutInflater.from(parent.getContext()).inflate(R.layout.row, null);
    }

    TextView listTitle = (TextView) row.findViewById(R.id.rowtext);
    listTitle.setTextColor(Color.parseColor("#405478"));

    return listTitle;
}

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