Try this:
EditText yourEditText = (EditText) findViewById(R.id.yourEditText);
yourEditText.setFilters(new InputFilter[] {
new InputFilter() {
@Override
public CharSequence filter(CharSequence cs, int start,
int end, Spanned spanned, int dStart, int dEnd) {
// TODO Auto-generated method stub
if(cs.equals("")){ // for backspace
return cs;
}
if(cs.toString().matches("[a-zA-Z ]+")){
return cs;
}
return "";
}
}
});
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