Better Way to Format Currency Input Edittext

Better way to Format Currency Input editText?

I tested your method, but it fails when I use great numbers... I created this:

private String current = "";
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
    if(!s.toString().equals(current)){
       [your_edittext].removeTextChangedListener(this);

       String cleanString = s.toString().replaceAll("[$,.]", "");
                
       double parsed = Double.parseDouble(cleanString);
       String formatted = NumberFormat.getCurrencyInstance().format((parsed/100));
                    
       current = formatted;
       [your_edittext].setText(formatted);
       [your_edittext].setSelection(formatted.length());
       
       [your_edittext].addTextChangedListener(this);
    }
}

Kotlin variant:

private var current: String = ""

         override fun onTextChanged(
            s: CharSequence,
            start: Int,
            before: Int,
            count: Int
        ) {
            if (s.toString() != current) {
                discount_amount_edit_text.removeTextChangedListener(this)

                val cleanString: String = s.replace("""[$,.]""".toRegex(), "")

                val parsed = cleanString.toDouble()
                val formatted = NumberFormat.getCurrencyInstance().format((parsed / 100))

                current = formatted
                discount_amount_edit_text.setText(formatted)
                discount_amount_edit_text.setSelection(formatted.length)

                discount_amount_edit_text.addTextChangedListener(this)
            }
        }

Android EditText AddTextChangeListener Currency Format

Per this SO question Format EditText to currency with whole numbers I added setMaximumFractionDigits to 0 like so

@Override
    public void afterTextChanged(Editable s) {
        if (!s.toString().equals(current)) {
            inputValue.removeTextChangedListener(this);

        String replaceable = String.format("[%s,.\\s]",   NumberFormat.getCurrencyInstance().getCurrency().getSymbol());
        String cleanString = s.toString().replaceAll(replaceable, "");

        double parsed;
        try {
            parsed = Double.parseDouble(cleanString);
        } catch (NumberFormatException e) {
            parsed = 0.00;
        }
        NumberFormat formatter = NumberFormat.getCurrencyInstance();
        formatter.setMaximumFractionDigits(0);
        String formatted = formatter.format((parsed));

        current = formatted;
        inputValue.setText(formatted);
        inputValue.setSelection(formatted.length());
        inputValue.addTextChangedListener(this);
    }

Currency input with 2 decimal format

I think you can try the following:

Layout:

<EditText
        android:id="@+id/editText"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:inputType="numberDecimal"
        />

Activity:

EditText editText = (EditText) findViewById(R.id.editText);
editText.addTextChangedListener(new NumberTextWatcher(editText, "#,###"));

with text watcher as the following:

public class NumberTextWatcher implements TextWatcher {

    private final DecimalFormat df;
    private final DecimalFormat dfnd;
    private final EditText et;
    private boolean hasFractionalPart;
    private int trailingZeroCount;

    public NumberTextWatcher(EditText editText, String pattern) {
        df = new DecimalFormat(pattern);
        df.setDecimalSeparatorAlwaysShown(true);
        dfnd = new DecimalFormat("#,###.00");
        this.et = editText;
        hasFractionalPart = false;
    }

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

        if (s != null && !s.toString().isEmpty()) {
            try {
                int inilen, endlen;
                inilen = et.getText().length();
                String v = s.toString().replace(String.valueOf(df.getDecimalFormatSymbols().getGroupingSeparator()), "").replace("$","");
                Number n = df.parse(v);
                int cp = et.getSelectionStart();
                if (hasFractionalPart) {
                    StringBuilder trailingZeros = new StringBuilder();
                    while (trailingZeroCount-- > 0)
                        trailingZeros.append('0');
                    et.setText(df.format(n) + trailingZeros.toString());
                } else {
                    et.setText(dfnd.format(n));
                }
                et.setText("$".concat(et.getText().toString()));
                endlen = et.getText().length();
                int sel = (cp + (endlen - inilen));
                if (sel > 0 && sel < et.getText().length()) {
                    et.setSelection(sel);
                } else if (trailingZeroCount > -1) {
                    et.setSelection(et.getText().length() - 3);
                } else {
                    et.setSelection(et.getText().length());
                }
            } catch (NumberFormatException | ParseException e) {
                e.printStackTrace();
            }
        }

        et.addTextChangedListener(this);
    }

    @Override
    public void beforeTextChanged(CharSequence s, int start, int count, int after) {
    }

    @Override
    public void onTextChanged(CharSequence s, int start, int before, int count) {
        int index = s.toString().indexOf(String.valueOf(df.getDecimalFormatSymbols().getDecimalSeparator()));
        trailingZeroCount = 0;
        if (index > -1) {
            for (index++; index < s.length(); index++) {
                if (s.charAt(index) == '0')
                    trailingZeroCount++;
                else {
                    trailingZeroCount = 0;
                }
            }
            hasFractionalPart = true;
        } else {
            hasFractionalPart = false;
        }
    }
}

Format currency string using EditText in Android

try this :

set TextChangedListner as :

minimo.addTextChangedListener(new NumberTextWatcher(minimo));

create custom TextWatcher as:

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;
        }
    }
}

Simple EditText currency formatter

Try to use a textwatcher :D

http://developer.android.com/reference/android/text/TextWatcher.html

Better way to Format Currency Input editText?

With this u can format the incoming String before its display,
so u can easily append a "€" and other stuff

Currency format for EditText

Library author here.

We've got a wiki page describing masks for texts with right-to-left alignment; this page includes a case similar to yours.

In short, try configuring your listener like this:

mask.rightToLeft = true

EditText to Input Money Amount

For your first problem follow this link
Thousand separator

For your second problem
add this to your editext

android:digits="0123456789"
android:inputType="numberDecimal"

And for your third problem you have to use TextWatcher like this

editText1.addTextChangedListener(new TextWatcher(){
    public void onTextChanged(CharSequence s, int start, int before, int count)
    {
        if (editText1.getText().toString().matches("^0") )
        {
            // Not allowed
            Toast.makeText(context, "not allowed", Toast.LENGTH_LONG).show();
            editText1.setText("");
        }
    }
    @Override
    public void afterTextChanged(Editable arg0) { }
    @Override
    public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
}); 

Hw to Format Currency Input editText? Xamarin.Android

You could use the code below. I use the android:hint to set the placeholder text($0.00) to EditText.

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
      android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
    <EditText
        android:id="@+id/myEditField"
        android:hint="$0.00"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"/>
</LinearLayout>

Code behind:

public class Activity2 : Activity
{
    private EditText _editText;
    protected override void OnCreate(Bundle savedInstanceState)
    {
        base.OnCreate(savedInstanceState);

        // Create your application here

        SetContentView(Resource.Layout.layout2);

        _editText = FindViewById<EditText>(Resource.Id.myEditField);
        _editText.AfterTextChanged += EditText_AfterTextChanged;
    }

    private void EditText_AfterTextChanged(object sender, AfterTextChangedEventArgs e)
    {
        var text = e.Editable.ToString();
        _editText.AfterTextChanged -= EditText_AfterTextChanged;
        var formatedText = ValueConverter(text);
        _editText.Text = formatedText;
        _editText.SetSelection(formatedText.Length);
        _editText.AfterTextChanged += EditText_AfterTextChanged;
    }
    private static string ValueConverter(string text)
    {
        if (text.Length>5)
        {
            return string.Format("{0}{1}", "$0.0", text.Substring(4));
        }
        return string.Format("{0}{1}", "$0.0", text);
    }
}

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