マイ アプリでは、[削除] ボタンをクリックすると、[注文] ページでアイテムが削除されます..しかし、削除されたアイテムは、ListView でもチェックを外す必要があります..
私は試してみましたが、これは私のコードです:
public View getView(final int position, View convertView, ViewGroup parent)
{
final ViewHolder holder;
if (convertView == null)
{
convertView = inflater.inflate(R.layout.selecteditemlistview, null);
holder = new ViewHolder();
holder.textViewSelectedText = (TextView)convertView.findViewById(R.id.selectedtext);
holder.price=(TextView)convertView.findViewById(R.id.selectitemprice);
holder.image=(ImageView)convertView.findViewById(R.id.selectitemimage);
holder.qty=(EditText)convertView.findViewById(R.id.selectqty);
holder.total=(TextView)convertView.findViewById(R.id.price);
holder.delete = (Button) convertView.findViewById(R.id.delete);
holder.uncheck = (CheckBox)convertView.findViewById(R.id.bcheck);
convertView.setTag(holder);
}
else
{
holder = (ViewHolder) convertView.getTag();
}
String amount=holder.qty.getText().toString();
final Double price1=Double.parseDouble(itemprice.get(position));
int qut=Integer.parseInt(holder.qty.getText().toString());
Double total=(price1*qut);
holder.textViewSelectedText.setText(arr1.get(position));
holder.price.setText(itemprice.get(position));
holder.image.setImageBitmap(itemimage.get(position));
holder.total.setText(String.valueOf(total));
holder.delete.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
arr1.remove(position);
itemimage.remove(position);
itemprice.remove(position);
notifyDataSetChanged();
holder.uncheck.setChecked(false);
}
});
前もって感謝します。
これは私の Logcat です。
05-19 12:10:17.355: D/AndroidRuntime(721): Shutting down VM
05-19 12:10:17.365: W/dalvikvm(721): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
05-19 12:10:17.375: E/AndroidRuntime(721): FATAL EXCEPTION: main
05-19 12:10:17.375: E/AndroidRuntime(721): java.lang.NullPointerException
05-19 12:10:17.375: E/AndroidRuntime(721): at com.customer.CustomAdapter$1.onClick(CustomAdapter.java:114)
05-19 12:10:17.375: E/AndroidRuntime(721): at android.view.View.performClick(View.java:2408)
05-19 12:10:17.375: E/AndroidRuntime(721): at android.view.View$PerformClick.run(View.java:8816)
05-19 12:10:17.375: E/AndroidRuntime(721): at android.os.Handler.handleCallback(Handler.java:587)
05-19 12:10:17.375: E/AndroidRuntime(721): at android.os.Handler.dispatchMessage(Handler.java:92)
05-19 12:10:17.375: E/AndroidRuntime(721): at android.os.Looper.loop(Looper.java:123)
05-19 12:10:17.375: E/AndroidRuntime(721): at android.app.ActivityThread.main(ActivityThread.java:4627)
05-19 12:10:17.375: E/AndroidRuntime(721): at java.lang.reflect.Method.invokeNative(Native Method)
05-19 12:10:17.375: E/AndroidRuntime(721): at java.lang.reflect.Method.invoke(Method.java:521)
05-19 12:10:17.375: E/AndroidRuntime(721): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
05-19 12:10:17.375: E/AndroidRuntime(721): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
05-19 12:10:17.375: E/AndroidRuntime(721): at dalvik.system.NativeStart.main(Native Method)