1
我正在使用帶有自定義Adapter的ListView。每行內有兩個TextView。我只需要更改這些TextView的文本，僅用於我點擊的文本視圖。我怎樣才能實現它？將文本設置到ListView中的特定位置上的TextView
我有我的CustomAdapter內的方法，我初始化TextView的
public class MainListAdapter extends BaseAdapter {
private static final String TAG = "MainListAdapter";
private Context mContext;
private LayoutInflater layoutInflater;
private MyViewPager itemViewPager;
private View viewMain;
private View viewSlide;
private TextView cancel;
private TextView delete, block;
TextView itemName, showResult;
int triedOnce;
private ArrayList<View> views;
private PagerAdapter pagerAdapter;
private ArrayList<String> mList;
public static final String API_KEY = "MYAPIKEY";
public MainListAdapter(Context context, ArrayList<String> list) {
mContext = context;
layoutInflater = LayoutInflater.from(mContext);
mList = list;
}
@Override
public int getCount() {
return mList != null ? mList.size() : 0;
}
@Override
public Object getItem(int position) {
return mList != null ? mList.get(position) : null;
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
if (convertView == null) {
convertView = layoutInflater.inflate(R.layout.listview_item, null);
}
if(position%2 == 0){
convertView.setBackgroundResource(R.drawable.lis_bg);
}else if(position%2 == 1){
convertView.setBackgroundResource(R.drawable.ls_eppadi_bg);
}
viewMain = layoutInflater.inflate(R.layout.listview_item_main, null);
viewSlide = layoutInflater.inflate(R.layout.listview_item_slide, null);
cancel = (TextView)viewSlide.findViewById(R.id.tv_menu_cancel);
delete = (TextView)viewSlide.findViewById(R.id.tv_menu_delete);
block = (TextView) viewSlide.findViewById(R.id.tv_menu_block);
cancel.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
//perform cancel
}
});
delete.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
//perform delete
}
});
block.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
//perform block
}
});
views = new ArrayList<View>();
views.add(viewMain);
views.add(viewSlide);
itemViewPager = (MyViewPager)convertView.findViewById(R.id.vp_list_item);
itemViewPager.setSelfIndex(position);
pagerAdapter = new PagerAdapter() {
@Override
public void destroyItem(ViewGroup container, int position, Object object) {
((MyViewPager)container).removeView(views.get(position));
}
@Override
public Object instantiateItem(ViewGroup container, int position) {
((MyViewPager)container).addView(views.get(position));
return views.get(position);
}
@Override
public boolean isViewFromObject(View arg0, Object arg1) {
return arg0 == arg1;
}
@Override
public int getCount() {
return views.size();
}
};
fillItemData(convertView, position, viewMain);
itemViewPager.setAdapter(pagerAdapter);
itemViewPager.setCurrentItem(0);
return convertView;
}
//this is where the textview's are initialised
private void fillItemData(View convertView, final int position, View viewMain) {
int[] colorCollection = {
R.color.green, R.color.royalblue, R.color.violet
};
for (int i = 0; i < colorCollection.length; i++) {
colorCollection[i] = mContext.getResources().getColor(colorCollection[i]);
}
int currColor = colorCollection[position % colorCollection.length];
itemName = (TextView)viewMain.findViewById(R.id.tv_item_name);
showResult = (TextView)viewMain.findViewById(R.id.tv_show);
itemName.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
new PushTask().execute(position);
triedOnce = 0;
}
});
itemName.setBackgroundColor(currColor);
showResult.setBackgroundColor(currColor);
itemName.setText(mList.get(position));
}
class PushTask extends AsyncTask<Integer, Integer, Integer> {
@Override
protected void onPreExecute() {
itemName.setVisibility(View.GONE);
showResult.setVisibility(View.VISIBLE);
//set text here based on the position
showResult.setText("SENDING");
}
@Override
protected Integer doInBackground(Integer... position) {
int post = position[0];
int respCode = 0;
//perform my network operations
return respCode;
}
@Override
protected void onPostExecute(Integer response) {
switch(response) {
case 1:
//set text here
showResult.setText("SENT");
Handler handler = new Handler();
handler.postDelayed(new Runnable() {
@Override
public void run() {
showResult.setVisibility(View.GONE);
itemName.setVisibility(View.VISIBLE);
}
}, 2000);
break;
case 2:
//set text here
showResult.setText("PLEASE WAIT!");
handler = new Handler();
handler.postDelayed(new Runnable() {
@Override
public void run() {
showResult.setVisibility(View.GONE);
itemName.setVisibility(View.VISIBLE);
}
}, 2000);
break;
case 3:
//set text here
showResult.setText("FAILED!");
handler = new Handler();
handler.postDelayed(new Runnable() {
@Override
public void run() {
showResult.setVisibility(View.GONE);
itemName.setVisibility(View.VISIBLE);
}
}, 2000);
break;
case 4:
//set text here
showResult.setText("FAILED!");
handler = new Handler();
handler.postDelayed(new Runnable() {
@Override
public void run() {
showResult.setVisibility(View.GONE);
itemName.setVisibility(View.VISIBLE);
}
}, 2000);
break;
default:
break;
}
}
}
}
現在我需要改變itemName和showResult「基於位置的用戶點擊其中s文本。 itemName.setOnClickListener有AsyncTask，我將改變這些textViews的文本。 目前它改變了listView的最後一行。
如何更改所選位置。
在此先感謝。
請看我的問題編輯並讓我知道 –
檢查我的答案 – Kay