The company projects have questions stumped me, because to enter the amount, "a serious and responsible (LANDEDONGNAO)" I programmers, Internet search input box to a method to retain two decimal places, documented here, for later use.
etMoney.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
//删除“.”后面超过2位后的数据
if (s.toString().contains(".")) {
if (s.length() - 1 - s.toString().indexOf(".") > 2) {
s = s.toString().subSequence(0,
s.toString().indexOf(".") + 2+1);
etMoney.setText(s);
etMoney.setSelection(s.length()); //光标移到最后
}
}
//如果"."在起始位置,则起始位置自动补0
if (s.toString().trim().substring(0).equals(".")) {
s = "0" + s;
etMoney.setText(s);
etMoney.setSelection(2);
}
//如果起始位置为0,且第二位跟的不是".",则无法后续输入
if (s.toString().startsWith("0")
&& s.toString().trim().length() > 1) {
if (!s.toString().substring(1, 2).equals(".")) {
etMoney.setText(s.subSequence(0, 1));
etMoney.setSelection(1);
return;
}
}
}
@Override
public void afterTextChanged(Editable s) {
}
});