EditText.setHint 在其中包含内容时不起作用

Question

I want to add a clear function to a button. I have written this code,

clear.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {

            name.setHint("Enter name");
            mail.setHint("Enter mail");
            num.setHint("Enter num");
        }
    });

It works when the field is empty, but does not if field has content in it.

Thank you for your time. It's not a TextInputLayout. Works well with EditText.setText.

Answer 1

The hint will not show when there is text inside a text field. You can clear text like below:

clear.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {

            name.setHint("Enter name");
            name.setText("");

            mail.setHint("Enter mail");
            mail.setText("");

            num.setHint("Enter num");
            num.setText("");
        }
    });

Answer 2

The hint will only show when the content is empty. So you may clear your content and set hint at the same time.