Java 在Android中使用EditText格式化货币字符串

Java 在Android中使用EditText格式化货币字符串,java,android,string,formatting,android-edittext,Java,Android,String,Formatting,Android Edittext,我正在尝试在Android中格式化EditText的输入值,我想用货币值格式化输入,我已经尝试了以下方法: EditText minimo = (EditText) view.findViewById(R.id.minimo); Locale locale = new Locale("en", "UK"); NumberFormat fmt = NumberFormat.getCurrencyInstance(locale); Locale locale = new Locale("en"

我正在尝试在Android中格式化EditText的输入值,我想用货币值格式化输入,我已经尝试了以下方法:

EditText minimo = (EditText) view.findViewById(R.id.minimo);

Locale locale = new Locale("en", "UK");
NumberFormat fmt = NumberFormat.getCurrencyInstance(locale);

 Locale locale = new Locale("en", "UK");
    NumberFormat fmt = NumberFormat.getCurrencyInstance(locale);

    minimo.setText("", TextView.BufferType.valueOf(String.valueOf(fmt.format(TextView.BufferType.EDITABLE))));
日志:

EditText minimo = (EditText) view.findViewById(R.id.minimo);

Locale locale = new Locale("en", "UK");
NumberFormat fmt = NumberFormat.getCurrencyInstance(locale);

 Locale locale = new Locale("en", "UK");
    NumberFormat fmt = NumberFormat.getCurrencyInstance(locale);

    minimo.setText("", TextView.BufferType.valueOf(String.valueOf(fmt.format(TextView.BufferType.EDITABLE))));
试试这个:

EditText minimo = (EditText) view.findViewById(R.id.minimo);

Locale locale = new Locale("en", "UK");
NumberFormat fmt = NumberFormat.getCurrencyInstance(locale);

 Locale locale = new Locale("en", "UK");
    NumberFormat fmt = NumberFormat.getCurrencyInstance(locale);

    minimo.setText("", TextView.BufferType.valueOf(String.valueOf(fmt.format(TextView.BufferType.EDITABLE))));
TextChangedListner
设置为:

EditText minimo = (EditText) view.findViewById(R.id.minimo);

Locale locale = new Locale("en", "UK");
NumberFormat fmt = NumberFormat.getCurrencyInstance(locale);

 Locale locale = new Locale("en", "UK");
    NumberFormat fmt = NumberFormat.getCurrencyInstance(locale);

    minimo.setText("", TextView.BufferType.valueOf(String.valueOf(fmt.format(TextView.BufferType.EDITABLE))));
minimo.addTextChangedListener(new NumberTextWatcher(minimo));
创建自定义
TextWatcher
作为:

EditText minimo = (EditText) view.findViewById(R.id.minimo);

Locale locale = new Locale("en", "UK");
NumberFormat fmt = NumberFormat.getCurrencyInstance(locale);

 Locale locale = new Locale("en", "UK");
    NumberFormat fmt = NumberFormat.getCurrencyInstance(locale);

    minimo.setText("", TextView.BufferType.valueOf(String.valueOf(fmt.format(TextView.BufferType.EDITABLE))));
class NumberTextWatcher implements TextWatcher {

    private DecimalFormat df;
    private DecimalFormat dfnd;
    private boolean hasFractionalPart;

    private EditText et;

    public NumberTextWatcher(EditText et)
    {
        df = new DecimalFormat("#,###.##");
        df.setDecimalSeparatorAlwaysShown(true);
        dfnd = new DecimalFormat("#,###");
        this.et = et;
        hasFractionalPart = false;
    }

    @SuppressWarnings("unused")
    private static final String TAG = "NumberTextWatcher";

    public void afterTextChanged(Editable s)
    {
        et.removeTextChangedListener(this);

        try {
            int inilen, endlen;
            inilen = et.getText().length();

            String v = s.toString().replace(String.valueOf(df.getDecimalFormatSymbols().getGroupingSeparator()), "");
            Number n = df.parse(v);
            int cp = et.getSelectionStart();
            if (hasFractionalPart) {
                et.setText(df.format(n));
            } else {
                et.setText(dfnd.format(n));
            }
            endlen = et.getText().length();
            int sel = (cp + (endlen - inilen));
            if (sel > 0 && sel <= et.getText().length()) {
                et.setSelection(sel);
            } else {
                // place cursor at the end?
                et.setSelection(et.getText().length() - 1);
            }
        } catch (NumberFormatException nfe) {
            // do nothing?
        } catch (ParseException e) {
            // do nothing?
        }

        et.addTextChangedListener(this);
    }

    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().contains(String.valueOf(df.getDecimalFormatSymbols().getDecimalSeparator())))
        {
            hasFractionalPart = true;
        } else {
            hasFractionalPart = false;
        }
    }
}
class NumberTextWatcher实现TextWatcher{
专用分码格式df;
私有决策格式dfnd;
私有布尔部分;
私人编辑;
公用号码ExtWatcher(编辑文本et)
{
df=新的十进制格式(“#,###.##”);
df.setDecimalSeparatorAlwaysShown(真);
dfnd=新的十进制格式(“#,####”);
this.et=et;
hasstatilpart=false;
}
@抑制警告(“未使用”)
私有静态最终字符串标记=“NumberTextWatcher”;
公共无效后文本已更改(可编辑)
{
et.removeTextChangedListener(此);
试一试{
内伊尼伦,恩德伦;
inilen=et.getText().length();
String v=s.toString().replace(String.valueOf(df.getDecimalFormatSymbols().getGroupingSeparator()),“”);
数字n=df.parse(v);
int cp=et.getSelectionStart();
if(hasstatilpart){
et.setText(df.format(n));
}否则{
et.setText(dfnd.format(n));
}
endlen=et.getText().length();
int sel=(cp+(endlen-inilen));

如果(sel>0&&sel谢谢你Rustam,这使错误消失了,但它没有做我想做的事情,即如果用户键入“1000000”,它必须将值格式化为“10.000,00”。我编辑了这个问题,我想要格式化的是可编辑值,这真的很好,它工作了,只有一件事,我可以替换格式“###,######,####,####?@Rustam但如果我删除TextView,它会抱怨并要求
android.widget.TextView;