对于大多数web应用来说显示项目列表是一种很常见的任务。通常情况下,我们的数据会比较多,无法很好地显示在单个页面中。在这种情况下,我们需要把数据以页的方式来展示。
Js代码:
获取数据
var _get = function(page,size,callback){
$http.get("xxx.html?status=0&page="+page+"&size="+size).success(function(res){
if(res&&res.status==1){
$scope.count=res.count;
$scope.list=res.list;
$scope.p_current = page;
$scope.p_all_page =Math.ceil($scope.count/$scope.p_pernum);
reloadpno();
callback();
}else{
alert("加载失败");
}
});
}
//单选按钮选中
$scope.select= function(id){
alert(id);
}
//首页
$scope.p_index = function(){
$scope.load_page(1);
}
//尾页
$scope.p_last = function(){
$scope.load_page($scope.p_all_page);
}
//加载某一页
$scope.load_page = function(page){
_get(page,function(){ });
};
//初始化页码
var reloadpno = function(){
$scope.pages=calculateIndexes($scope.p_current,$scope.p_all_page,8);
};
//分页算法
var calculateIndexes = function (current,length,displayLength) {
var indexes = [];
var start = Math.round(current - displayLength / 2);
var end = Math.round(current + displayLength / 2);
if (start <= 1) {
start = 1;
end = start + displayLength - 1;
if (end >= length - 1) {
end = length - 1;
}
}
if (end >= length - 1) {
end = length;
start = end - displayLength + 1;
if (start <= 1) {
start = 1;
}
}
for (var i = start; i <= end; i++) {
indexes.push(i);
}
return indexes;
};
});
分页算法:
current :当前页码,length:总页码,displayLength:显示长度 @return array[1,2,3,4,5,6,7,8]
= length - 1) {
end = length - 1;
}
}
if (end >= length - 1) {
end = length ;
start = end - displayLength + 1;
if (start <= 1) {
start = 1;
}
}
for (var i = start; i <= end; i++) {
indexes.push(i);
}
return indexes;
};
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持编程之家。