Thu Nov 29 13:02:52 PST 2018

Already we know that we can set which type of input the edittext should accept from user using

android:inputType="numberDecimal"



But there is no predefined function to set the limit for the edittext to
How many digit it should accept after the decimal point from user. We can achieve this by using
TextWatcher.





Full code example.



Following program creates a Decimal Filter.




DecimalFilter.java

import android.text.Editable; import android.text.InputFilter; import android.text.TextWatcher; import android.view.KeyEvent; import android.view.View; import android.view.View.OnKeyListener; import android.widget.EditText; public class DecimalFilter implements TextWatcher { int count= -1 ; EditText et; Activity activity; public DecimalFilter(EditText edittext, Activity activity) { et = edittext; this.activity = activity; } public void afterTextChanged(Editable s) { if (s.length() > 0) { String str = et.getText().toString(); et.setOnKeyListener(new OnKeyListener() { pub?