使用自定义列表视图,从排删除baseAdapter [英] Remove row from listview using custom baseAdapter
问题描述
您好我有CustomBaseAdapter.The列表视图内容的EditText和DeleteButton。现在一个ListView我想删除按钮单击事件的行。我试图adapter.removeViewAt(int)方法,但它给了我异常removeViewAt(INT)不支持适配器视图。我试过很多解决方案,但没有一个是工作,请帮助我。
Hello I have a ListView with CustomBaseAdapter.The listview contents EditText and DeleteButton .Now i want to delete the row on the button click event. I tried adapter.removeViewAt(int) method but it gives me exception that removeViewAt(int) not supported by AdapterView. I tried many solutions but none are work please help me.
我收到以下错误日志 -
I get Following ErrorLog -
12-01 12:28:53.499: W/System.err(464): java.lang.UnsupportedOperationException: removeView(View) is not supported in AdapterView
12-01 12:28:53.499: W/System.err(464): at android.widget.AdapterView.removeView(AdapterView.java:489)
12-01 12:28:53.499: W/System.err(464): at android.view.View.performClick(View.java:2408)
12-01 12:28:53.499: W/System.err(464): at android.view.View$PerformClick.run(View.java:8816)
12-01 12:28:53.499: W/System.err(464): at android.os.Handler.handleCallback(Handler.java:587)
12-01 12:28:53.499: W/System.err(464): at android.os.Handler.dispatchMessage(Handler.java:92)
12-01 12:28:53.509: W/System.err(464): at android.os.Looper.loop(Looper.java:123)
12-01 12:28:53.519: W/System.err(464): at android.app.ActivityThread.main(ActivityThread.java:4627)
12-01 12:28:53.519: W/System.err(464): at java.lang.reflect.Method.invokeNative(Native Method)
12-01 12:28:53.519: W/System.err(464): at java.lang.reflect.Method.invoke(Method.java:521)
12-01 12:28:53.519: W/System.err(464): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
12-01 12:28:53.519: W/System.err(464): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
12-01 12:28:53.519: W/System.err(464): at dalvik.system.NativeStart.main(Native Method)
和我的适配器是 -
and my adapter is -
公共类LazyAdapter延伸BaseAdapter {
public class LazyAdapter extends BaseAdapter {
private Activity activity;
private static LayoutInflater inflater=null;
private int noofrows;
private int LayoutRid;
static Map<Integer, String> Amt = new LinkedHashMap<Integer, String>();
static String AmtValue;
public LazyAdapter(Activity a, int rows, int Layoutid) {
activity = a;
noofrows = rows;
LayoutRid = Layoutid;
inflater = (LayoutInflater)activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
public int getCount() {
return noofrows;
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
public View getView(final int position, View convertView, ViewGroup parent) {
ViewHolder holder = new ViewHolder();
convertView = inflater.inflate(_LayoutRid, null );
holder.Amount = (EditText)convertView.findViewById(R.id.SESDedCCetDedAmount);
holder.btnDel = (Button)convertView.findViewById(R.id.btnMinus);
convertView.setTag(holder);
holder.Amount.setText(AmtValue == null? "" : AmtValue);
holder.btnDel.setText(CodeValue == null? "" : CodeValue);
holder.Amount.addTextChangedListener(new TextWatcher() {
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
}
public void afterTextChanged(Editable s) {
Amt.put(position, s.toString());
}
});
holder.btnDel.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
// Take List from parent view
ParentActivity.list.removeViewAt(position);
notifyDataSetChanged();
}
});
return convertView;
}
static class ViewHolder {
EditText Amount;
Button btnDel;
}
}
推荐答案
我解决了这个问题。我想从ArrayList中删除,但实际上我保存它的Hashmap,所以我必须从散列表中删除。因此,hashmap.remove(位置);解决了我的问题。
I solved the problem. I am trying to remove it from Arraylist but actually i stored it in Hashmap so i have to remove it from hashmap. So, hashmap.remove(position); solved my issue.
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