Question

我使用过滤器来设置editText的长度我将EditText长度设置为10，如下所示。

TextView editVew = new TextView(R.id.txtAmt);
InputFilter[] FilterArray = new InputFilter[1];
FilterArray[0] = new InputFilter.LengthFilter(10);
editVew.setFilters(FilterArray);
editVew.setInputType(InputType.TYPE_CLASS_NUMBER);

我的困惑：如何在我的编号中设置2位数的分数，我的编辑视图的总长度不应超过10位？如果有人知道请回复。
感谢

Answer 1

尝试此操作以使您的edittext支持小数点后的两位数。

EditText text = (EditText) findViewById(R.id.txtAmt);
text.addTextChangedListener(new TextWatcher() 
{
    public void afterTextChanged(Editable edittext) 
    {
        String str= edittext.toString();
        int posDot = str.indexOf(".");
        if (posDot <= 0) return;
        if (str.length() - posDot - 1 > 2)
        {
            edt.delete(posDot + 3, posDot + 4);
        }
    }

    public void beforeTextChanged(CharSequence arg0, int arg1, int arg2, int arg3) {}

    public void onTextChanged(CharSequence arg0, int arg1, int arg2, int arg3) {}
});

在xml中使用android:maxLength="10"来限制editText支持10个最大输入数字

Answer 2

试试这个..

            maxLength = 10;
            smsType = "free";
            FilterArraySeventy[0] = new InputFilter.LengthFilter(maxLength);
            message.setFilters(FilterArrayten);

Answer 3

您的答案的解决方案

amountEditText.setRawInputType(Configuration.KEYBOARD_12KEY);
    amountEditText.addTextChangedListener(new TextWatcher() {
        public void afterTextChanged(Editable s) {}
        public void beforeTextChanged(CharSequence s, int start, int count, int after) {}

        public void onTextChanged(CharSequence s, int start, int before, int count) {
            if(!s.toString().matches("^\\$(\\d{1,3}(\\,\\d{3})*|(\\d+))(\\.\\d{2})?$"))
            {
                String userInput= ""+s.toString().replaceAll("[^\\d]", "");
                StringBuilder cashAmountBuilder = new StringBuilder(userInput);

                while (cashAmountBuilder.length() > 3 && cashAmountBuilder.charAt(0) == '0') {
                    cashAmountBuilder.deleteCharAt(0);
                }
                while (cashAmountBuilder.length() < 3) {
                    cashAmountBuilder.insert(0, '0');
                }
                cashAmountBuilder.insert(cashAmountBuilder.length()-2, '.');
                cashAmountBuilder.insert(0, '$');

                amountEditText.setText(cashAmountBuilder.toString());
                // keeps the cursor always to the right
                Selection.setSelection(amountEditText.getText(), cashAmountBuilder.toString().length());

            }

        }
    });

这里讨论了同样的问题

Ref Link

如何在editText中设置2位数的小数部分？

3 个答案: