设置文本（数字）通过其setchangelistener编辑场 [英] set text(number) to Edit Field through its setchangelistener

问题描述

您好我想接受编辑字段数量最多两个decimal.So我设置监听到它，然后我
我检查号码是否是两位小数以上，如果是多于两位小数那么我
截断后，再次尝试设置截number.But它显示出在这个地方interestRate.setText（文本）。我的code 104误差

Hi I want to accept number in edit field up to two decimal.So I am setting listener to it Then I am checking whether number is two decimal or more and if it is more than two decimal then i am truncating the number and again trying to set the truncated number.But it showing 104 error at this place interestRate.setText(text).My code is

interestRate=new EditField();
interestRate.setChangeListener(new FieldChangeListener() {
public void fieldChanged(Field field, int context) {
String text=interestRate.getText().toString();
code here--
interestRate.setText(text);
}
};

所以我的问题是，是否文本可以从它的侦听器进行设置与否

So my question is whether text can be set from its listener or not

推荐答案

看起来像你只需要使用一些条件检查，以免在一个无限循环获取：

Looks like you just need to use some condition check in order not to get in an infinite loop:

interestRate=new EditField();
interestRate.setChangeListener(new FieldChangeListener() {
    public void fieldChanged(Field field, int context) {
        String text = interestRate.getText().toString();
        // code here to create a truncated text
        if (!truncated.equals(text)) {
            // next time we will not get here 
            // because truncated will be equal to text
            interestRate.setText(text);
        }
    }
});

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