edittext限制小数点后面只能输入两位

recharge_money.addTextChangedListener(this);

/**
* 以下三个是输入金额的edittext的监听
*/
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {

}

@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {

}

@Override
public void afterTextChanged(Editable s) {
String temp = s.toString();
int posDot = temp.indexOf(".");
if (posDot < 0) return;
//输入以 “ . ”开头的情况，自动在.前面补0
if (temp.startsWith(".") && posDot == 0) {
s.insert(0, "0");
return;
}
//输入"08" 等类似情况
if (temp.startsWith("0") && temp.length() > 1 && (posDot == -1 || posDot > 1)) {
s.delete(0, 1);
return;
}
//小数点后面只能有两位小数
if (temp.length() - posDot - 1 > 2) {
s.delete(posDot + 3, posDot + 4);
}
}