Android EditText AddTextChangeListener Currency Format
Through SO I put together the following EditText addTextChangedListener event handler, it works great except for a little improvement I need. When I type, it fills in the numbers from right to left. I would prefer it to fill from left to right. Right now if I enter 50 it is $ 0.50, when I enter 50 I want it to format as $ 50.00
Below is the xml declaration and the Java code, please someone can point me to what I need to change to get the desired result.
XML declaration
<EditText
android:id="@+id/valueEditText"
android:layout_row="1"
android:hint="@string/hint_value_to_add"
android:imeOptions="actionNext"
android:inputType="numberDecimal"
style="@style/EnrollEditViewStyle" />
<requestFocus />
Java code
inputValue = (EditText) findViewById(R.id.valueEditText);
inputValue.addTextChangedListener(new TextWatcher() {
private String current = "";
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
// TODO Auto-generated method stub
}
@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;
}
String formatted = NumberFormat.getCurrencyInstance().format((parsed/100));
current = formatted;
inputValue.setText(formatted);
inputValue.setSelection(formatted.length());
inputValue.addTextChangedListener(this);
}
}
});
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1 answer
In this SO question EditText format for currency with integers 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);
}
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