Android 点击ListView(或GridView)的一个item，使其里面textview变色，点击另一个这个恢复原来颜色

今天作一个项目，就是做视频app，如果电视剧的话有许多剧集，点击一个item,播放不同的剧集，要有点击效果，并且默认是选择第一个。花费了一段时间，自己觉得有点难

度，现在和大家分享一下,下面是效果显示：



这个类是例子主类：

public final class MainActivity extends Activity {

private GridView gridView;

private ArrayList< String> numberList=new ArrayList<String>();;

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

// "mMediaItem.mDirector---------------"+VideoDetailActivity_Phone.mediaItem.mDes);

gridView = (GridView) findViewById(R.id.video_detail_series_gridview);



for (int j = 0; j < 10; j++) {



numberList.add("" + (j+1));

}

final SeriesFragmentDataAdapter seriesAdapter = new SeriesFragmentDataAdapter(this,numberList);

gridView.setAdapter(seriesAdapter);



gridView.setOnItemClickListener(new OnItemClickListener() {

@Override

public void onItemClick(AdapterView<?> parent, View view,

int position, long id) {

// TODO Auto-generated method stub

／／这句是通知adapter改变选中的position

seriesAdapter.clearSelection(position);

／／关键是这一句，激情了，它可以让listview改动过的数据重新加载一遍，以达到你想要的效果

seriesAdapter.notifyDataSetChanged();

}

});

}

}

这个类是例子adapter：

public class SeriesFragmentDataAdapter extends BaseAdapter {

private LayoutInflater inflater;

private ArrayList<String> numberList=new ArrayList<String>();

private int selectedPosition=0;

public SeriesFragmentDataAdapter(Context context,

ArrayList<String> numberList) {

inflater = LayoutInflater.from(context);

this.numberList = numberList;

}

@Override

public int getCount() {

// TODO Auto-generated method stub

return numberList.size();

}

@Override

public Object getItem(int position) {

// TODO Auto-generated method stub

return numberList.get(position);

}

@Override

public long getItemId(int position) {

// TODO Auto-generated method stub

return position;

}

／／这句是把listview的点击position,传递过来

public void clearSelection(int position) {

selectedPosition = position;

}

@Override

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

// TODO Auto-generated method stub

ViewHolder holder;



if (convertView == null) {

holder = new ViewHolder();

convertView = inflater.inflate(R.layout.global_series_item, null);

holder.textview = (TextView) convertView

.findViewById(R.id.video_detail_series_item_text);

convertView.setTag(holder);

}

holder = (ViewHolder) convertView.getTag();

if (numberList.get(position).length() > 0) {

holder.textview.setText(numberList.get(position));

}

／／判断点击了哪个item,然后判断，让他的textview变色

if(selectedPosition==position){

holder.textview.setTextColor(Color.parseColor("#ff6501"));

}else{

holder.textview.setTextColor(Color.parseColor("#404040"));

}

return convertView;

}

public class ViewHolder {

public TextView textview;

}

}

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