解决问题：
实现源码：
Page({
// 页面的初始数据 data: {
showInputStatus: false,
inputValue: '',//点击结果项之后替换到文本框的值adapterSource: ["app", "application", "apply", "weixin", "WeiXin"],//本地匹配源bindSource: [],//绑定到页面的数据，根据用户输入动态变化 },
bindKeyInput: function (e) {
varcurrentInputStatu = e.currentTarget.dataset.statu;
varprefix = e.detail.value//用户实时输入值varnewSource = []//匹配的结果if(prefix != "") {
this.setData(
{
showBtnStatus1: false,
showBtnStatus2: true }
);
this.data.adapterSource.forEach(function (e) {
if(e.indexOf(prefix) != -1) {//返回某个指定的字符串值在字符串中首次出现的位置,如果要检索的字符串值没有出现，则该方法返回 -1 newSource.push(e)
}
})
} else {
currentInputStatu = "close";
this.setData(
{
isScroll: true,
showBtnStatus1: true,
showBtnStatus2: false }
);
}
if(newSource.length != 0) {
this.setData({
bindSource: newSource
})
} else {
this.setData({
bindSource: []
})
currentInputStatu = "close";
this.setData(
{
isScroll: "{{false}}" }
);
}
//关闭 if(currentInputStatu == "close") {
this.setData(
{
showInputStatus: false,
isScroll: true }
);
}
// 显示 if(currentInputStatu == "open") {
this.setData(
{
showInputStatus: true,
isScroll: "{{false}}" }
);
}
},//点击选型确定input值itemtap:function (e) {
varcurrentInputStatu = e.currentTarget.dataset.statu;
this.setData({
inputValue: e.target.id,
bindSource: []
})
//关闭 if(currentInputStatu == "close") {
this.setData(
{
showInputStatus: false,
isScroll: true }
);
}
// 显示 if(currentInputStatu == "open") {
this.setData(
{
showInputStatus: true,
isScroll: "{{false}}" }
);
}
}
})
