利用微信内置地图进行实际开发时，发现熄屏后再次触发show函数时，show函数提示被触发，在show函数中放的是一个定时器，定时器中放着一个API为wx.getLocation，show函数被触发后，定时器也被触发，可是wx.getLocation没有被触发，并且一直报错，错误信息为errCode: -1, errMsg: “getLocation:fail:timeout”。
onShow: function() {
var self = this;
if (key1) {
if (timer) {
clearInterval(timer);
};
console.log(‘show’);
self.shishiyundong(‘show’);
///
shishiyundong: function(kr) {
if (kr.type == ‘tap’) {
kr = ‘yundong’;
}
var that = this;
var objj;
timer = setInterval(function() {
wx.getLocation({
type: “gcj02”,
success: function(res) {
// console.log(res);
dangqian = res;
objj = {
latitude: dangqian.latitude,
longitude: dangqian.longitude
};
plll.push(objj);
console.log(objj, plll, kr);
//设置polyline属性，将路线显示出来
that.setData({
polyline: [{
points: plll,
color: ‘#000000’,
width: 2,
}],
marker: [{
markerId: 0,
iconPath: ‘…/image/wz.png’,
longitude: objj.longitude,
latitude: objj.latitude,
width: 30,
height: 30,
}],
});
},
fail: function(res) {}
});
}, 1000);
},
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