az_common.dart
1.62 KB
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/// ISuspension Bean.
abstract mixin class ISuspensionBean {
bool isShowSuspension = false;
String getSuspensionTag(); //Suspension Tag
}
/// Suspension Util.
class SuspensionUtil {
/// sort list by suspension tag.
/// 根据[A-Z]排序。
static void sortListBySuspensionTag(List<ISuspensionBean>? list) {
if (list == null || list.isEmpty) return;
list.sort((a, b) {
if (a.getSuspensionTag() == "@" || b.getSuspensionTag() == "#") {
return -1;
} else if (a.getSuspensionTag() == "#" || b.getSuspensionTag() == "@") {
return 1;
} else {
return a.getSuspensionTag().compareTo(b.getSuspensionTag());
}
});
}
/// get index data list by suspension tag.
/// 获取索引列表。
static List<String> getTagIndexList(List<ISuspensionBean>? list) {
List<String> indexData = [];
if (list != null && list.isNotEmpty) {
String? tempTag;
for (int i = 0, length = list.length; i < length; i++) {
String tag = list[i].getSuspensionTag();
if (tempTag != tag) {
indexData.add(tag);
tempTag = tag;
}
}
}
return indexData;
}
/// set show suspension status.
/// 设置显示悬停Header状态。
static void setShowSuspensionStatus(List<ISuspensionBean>? list) {
if (list == null || list.isEmpty) return;
String? tempTag;
for (int i = 0, length = list.length; i < length; i++) {
String tag = list[i].getSuspensionTag();
if (tempTag != tag) {
tempTag = tag;
list[i].isShowSuspension = true;
} else {
list[i].isShowSuspension = false;
}
}
}
}