Android

Question

这会有点难以解释，但我会尽力而为！

我有一个数字从 1 到 50 的微调器。当我点击一个数字时，我编写的脚本会创建一些 TableView，就像我点击的数字一样（例如：点击 3 --> 3 TableView） .

当我点击另一个号码时出现问题：我想用新号码替换我以前的视图，而不是在它的末尾添加！只是为了更好地解释：我点击 3，它创建了 3 个视图；然后我点击 4：我现在想有 4 个视图，但它给了我 7，因为它有 3+4。如果我现在点击 50，我将有 57 个视图，而不是 50 个等等...真的不知道如何进行这项工作。

感谢您的帮助！

这是完整的代码，但我确定您对我在 OnItemSelectedListener 中所做的事情不感兴趣...无论如何，我会 post 在这里，以防万一您需要它！

spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
        @Override
        public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
            for (int j = 1+pokeIds.size(); j <= (int)spinner.getSelectedItem()+pokeIds.size(); j++) {
                //get a reference for the TableLayout
                TableLayout table = (TableLayout)findViewById(R.id.internalcopies);

                //create a new TableLayout
                TableLayout internaltable = new TableLayout(getApplicationContext());

                // create a new TableRow
                TableRow row = new TableRow(getApplicationContext());
                TableRow attackRow = new TableRow(getApplicationContext());
                TableRow ultiRow = new TableRow(getApplicationContext());

                ImageView iv = new ImageView(getApplicationContext());
                iv.setImageResource(imageAdapter.mThumbIds[pokeID-1]);
                TableRow.LayoutParams params = new TableRow.LayoutParams(200,200);
                iv.setLayoutParams(params);

                attackSpinner = new Spinner(getApplicationContext());
                ultiSpinner = new Spinner(getApplicationContext());
                attackSpinner.setBackgroundColor(getResources().getColor(R.color.erba));
                ultiSpinner.setBackgroundColor(getResources().getColor(R.color.erba));
                params = new TableRow.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
                attackSpinner.setLayoutParams(params);
                ultiSpinner.setLayoutParams(params);
                attackSpinner.setId(j);
                ultiSpinner.setId(j*10);

                editText = new EditText(getApplicationContext());
                if (dpi == 480) {
                    editText.setWidth(250);
                    editText.setTextSize(13);
                }
                else if (dpi == 420)
                    editText.setWidth(300);
                editText.setHint("(Nome)");
                editText.setHintTextColor(getResources().getColor(R.color.acciaio));
                editText.setTextColor(getResources().getColor(android.R.color.black));
                editText.setId(j*11);

                List<String> attacks = pokemonHelper.getMoves(pokeID, "HasAttack");

                ArrayAdapter<String>attacksAdapter = new ArrayAdapter<>(getApplicationContext(), android.R.layout.simple_spinner_item, attacks);
                attacksAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
                attackSpinner.setAdapter(attacksAdapter);

                List<String> ultis = pokemonHelper.getMoves(pokeID, "HasUlti");

                ArrayAdapter<String>ultiAdapter = new ArrayAdapter<>(getApplicationContext(), android.R.layout.simple_spinner_item, ultis);
                attacksAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
                ultiSpinner.setAdapter(ultiAdapter);

                // add the TextView  to the new TableRow
                params.gravity = Gravity.CENTER_VERTICAL;
                params.setMargins(0,10,0,0);
                row.addView(iv);
                editText.setLayoutParams(params);
                row.addView(editText);
                attackRow.addView(attackSpinner);
                ultiRow.addView(ultiSpinner);
                internaltable.addView(attackRow);
                internaltable.addView(ultiRow);
                internaltable.setLayoutParams(params);
                row.addView(internaltable);

                // add the TableRow to the TableLayout
                table.addView(row, new TableLayout.LayoutParams(TableLayout.LayoutParams.WRAP_CONTENT, TableLayout.LayoutParams.WRAP_CONTENT));
            }
        }

        @Override
        public void onNothingSelected(AdapterView<?> parent){}
    });

Answer 1

在开始添加新的之前，您应该删除 table 的所有子项：

//get a reference for the TableLayout
TableLayout table = (TableLayout)findViewById(R.id.internalcopies);

table.removeAllViews();
for (int j = 1+pokeIds.size(); j < (int)spinner.getSelectedItem()+pokeIds.size(); j++) {
    ...
}

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