I have three editTexts in my dialog view. At first, I disable positive button and every thing is ok("ok" means that when the dialog is showed, the positive button is disable and this is what I want ). Now,I want to enable it if the length of my three editTexts be larger than zero. I have found some answers only for one editText. Can anyone help me?
You could use the TextWatcher for each EditText to monitor the string length.
boolean et1HasText, et2HasText, et3HasText; // Global variables
et1.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
if(s.length > 0){
et1HasText = true;
}else{
et1HasText = false;
}
validateButton();
}
// Other callbacks
...
...
});
et2.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
if(s.length > 0){
et2HasText = true;
}else{
et2HasText = false;
}
validateButton();
}
//Other callbacks
...
...
});
et3.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
if(s.length > 0){
et3HasText = true;
}else{
et3HasText = false;
}
validateButton();
}
//Other callbacks
...
...
});
private void validateButton(){
if(et1HasText && et2HasText && et3HasText){
//Enable the button only when all the 3 edit texts have text
button.setEnabled(true);
}else{
//Disable otherwise (user clicks backspace and clears the edit text etc)
button.setEnabled(false);
}
}
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