Android版的EditText：格式化数 [英] Android edittext: Formating number

问题描述

我有一个的EditText ，如果我输入输入编号为 100000 ，其结果必然是 100.000 ，如果我输入的输入为百万，其结果必然是 1,000,000 。

在从最后开始，每3个字符必须有。

下面是我的code：

  tambah =（EditText上）rootView.findViewById（R.id.total）;
tambah.setOnFocusChangeListener（新OnFocusChangeListener（）{
       公共无效onFocusChange（视图V，布尔hasFocus）{
              // ...
       }
 

解决方案

下面是我用它来对美元的输入。它确保没有任何时刻都只有2位过去小数点。您应该能够以使其适应你的需要通过删除$符号。

  amountEditText.setRawInputType（Configuration.KEYBOARD_12KEY）;
amountEditText.addTextChangedListener（新TextWatcher（）{
    公共无效afterTextChanged（编辑S）{}
    公共无效beforeTextChanged（CharSequence中，诠释开始，诠释计数后INT）{}公共无效onTextChanged（CharSequence中，诠释开始，诠释之前，诠释计数）{
    如果（s.toString（）的比赛（^ \\\\ $（\\\\Ð{1,3}（\\\\ \\\\ð{3}）* |！（\\\\ D +））（\\\\。 ð{2}）？$））
    {
        字符串userInput =+ s.toString（）的replaceAll（[^ \\\\ D]。，）;
        StringBuilder的cashAmountBuilder =新的StringBuilder（userInput）;        而（cashAmountBuilder.length（）→3＆放大器;＆放大器; cashAmountBuilder.charAt（0）=='0'）{
            cashAmountBuilder.deleteCharAt（0）;
        }
        而（cashAmountBuilder.length（）3;）{
            cashAmountBuilder.insert（0，'0'）;
        }
        cashAmountBuilder.insert（cashAmountBuilder.length（） -  2，'。'）;
        cashAmountBuilder.insert（0，'$'）;        amountEditText.setText（cashAmountBuilder.toString（））;
        //保持光标总是向右
        Selection.setSelection（amountEditText.getText（），cashAmountBuilder.toString（）长度（））;    }}
}）;
 

I have a edittext, and if I enter input number as 100000, the result must be 100.000, and if I enter input as 1000000, the result must be 1.000.000.

After every 3 characters from the last to beginning must have a "."

Here is my code:

tambah = (EditText)rootView.findViewById(R.id.total);
tambah.setOnFocusChangeListener(new OnFocusChangeListener(){
       public void onFocusChange(View v, boolean hasFocus) {
              // ...
       }

解决方案

Here is something I use to for dollar input. It makes sure that there are only 2 places past the decimal point at all times. You should be able to adapt it to your needs by removing the $ sign.

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());

    }

}
});

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