EditText限制输入数字，精确到小数点后1位设置

android:inputType="numberDecimal"

/** 输入框小数的位数*/
private static final int DECIMAL_DIGITS = 1;

InputFilter lengthfilter = new InputFilter() {
public CharSequence filter(CharSequence source, int start, int end,
Spanned dest, int dstart, int dend) {
// 删除等特殊字符，直接返回
if ("".equals(source.toString())) {
return null;
}
String dValue = dest.toString();
String[] splitArray = dValue.split("//.");
if (splitArray.length > 1) {
String dotValue = splitArray[1];
int diff = dotValue.length() + 1 - DECIMAL_DIGITS;
if (diff > 0) {
return source.subSequence(start, end - diff);
}
}
return null;
}
};
et_content.setFilters(new InputFilter[] { lengthfilter });