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    <p>I built on Guilhermes answer, but I preserve the position of the cursor and also treat the periods differently - this way if a user is typing after the period, it does not affect the numbers before the period I find that this gives a very smooth input.</p> <pre><code> [yourtextfield].addTextChangedListener(new TextWatcher() { NumberFormat currencyFormat = NumberFormat.getCurrencyInstance(); private String current = ""; @Override public void onTextChanged(CharSequence s, int start, int before, int count) { if(!s.toString().equals(current)) { [yourtextfield].removeTextChangedListener(this); int selection = [yourtextfield].getSelectionStart(); // We strip off the currency symbol String replaceable = String.format("[%s,\\s]", NumberFormat.getCurrencyInstance().getCurrency().getSymbol()); String cleanString = s.toString().replaceAll(replaceable, ""); double price; // Parse the string try { price = Double.parseDouble(cleanString); } catch(java.lang.NumberFormatException e) { price = 0; } // If we don't see a decimal, then the user must have deleted it. // In that case, the number must be divided by 100, otherwise 1 int shrink = 1; if(!(s.toString().contains("."))) { shrink = 100; } // Reformat the number String formated = currencyFormat.format((price / shrink)); current = formated; [yourtextfield].setText(formated); [yourtextfield].setSelection(Math.min(selection, [yourtextfield].getText().length())); [yourtextfield].addTextChangedListener(this); } } @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { } @Override public void afterTextChanged(Editable s) { } }); </code></pre>
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    1. POBetter way to Format Currency Input editText?
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    1. USgenixpro
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