我有一個編輯文本,我想限制在該編輯文本中插入18和85之間的數字值。 我目前在我的編輯文本上使用這個InputFilter。但是沒有用,我限制編輯文本中的範圍之間的文本
public class InputFilterMinMax implements InputFilter {
private int min, max;
public InputFilterMinMax(int min, int max) {
this.min = min;
this.max = max;
}
public InputFilterMinMax(String min, String max) {
this.min = Integer.parseInt(min);
this.max = Integer.parseInt(max);
}
@Override
public CharSequence filter(CharSequence source, int start, int end,
Spanned dest, int dstart, int dend) {
try {
// Remove the string out of destination that is to be replaced
String replacement = source.subSequence(start, end).toString();
String newVal = dest.subSequence(0, dstart).toString()
+ replacement
+ dest.subSequence(dend, dest.length()).toString();
int input = Integer.parseInt(newVal);
if (isInRange(min, max, input))
return null;
} catch (NumberFormatException nfe) {
}
return "";
}
private boolean isInRange(int a, int b, int c) {
return b > a ? c >= a && c <= b : c >= b && c <= a;
}
}
請幫我..謝謝
請學會在谷歌第一搜索:http://stackoverflow.com/questions/5391394/edittext-values-in-range – Dhaval
HTTP://tech.chitgoks。 com/2011/06/27/android-set-min-max-value-an-edittext-accep/ – Dhaval
http://stackoverflow.com/questions/14212518/is-there-any-way-to-define-a -min-and-max-value-for-edittext-in-android –