需求是输入点额才出现确定按钮,因此要监听EditText的输入。而EditText的监听输入是:
priceReplyE.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
yesBtn.setVisibility(Button.VISIBLE);
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
// TODO Auto-generated method stub
}
@Override
public void afterTextChanged(Editable s) {
// TODO Auto-generated method stub
}
});
}
上面的yestBtn.setVisisblility是设置按钮显示。