What is enable and disable button based on condition?

1. function EnableDisable(txtPassportNumber) {
2. //Reference the Button.
3. var btnSubmit = document. getElementById(“btnSubmit”);
4. //Verify the TextBox value.
5. if (txtPassportNumber.value.trim() != “”) {
6. //Enable the TextBox when TextBox has value.
7. btnSubmit.disabled = false;
8. } else {

How do I disable button on Android?

You can’t enable it or disable it in your XML (since your layout is set at runtime), but you can set if it’s clickable at the launch of the activity with android:clickable . In my case, myButton. setEnabled(false); myButton.