This repository contains an exampe project with input watcher for auto formatting digits in edit text.
EditText input = findViewById(R.id.input);
NumberAutoFormatWatcher numberAutoFormatWatcher = new NumberAutoFormatWatcher();
numberAutoFormatWatcher.setFilter(filter);
numberAutoFormatWatcher.setDecimalFractions(2); // set decimal fractions
numberAutoFormatWatcher.setIntegerFractions(9); // set integer fractions
input.setFilters(new InputFilter[] { filter });
input.addTextChangedListener(numberAutoFormatWatcher);
InputFilter filter = new InputFilter() {
@Override
public CharSequence filter(CharSequence source, int i, int i1, Spanned spanned, int i2,
int i3) {
String fullString = input.getText().toString() + source.toString();
int dotAmount = InputUtils.getSignCount(fullString, '.');
// preventing multiple dots
if (dotAmount > 1) {
return "";
}
return source;
}
}; <EditText
android:id="@+id/input"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="numberDecimal"
android:singleLine="true"
/>-prevent symbols entering (while paste)
-fixed crash (while paste symbols)
-set limit for integer fractions
-set limit for decimal fractions
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