//视频广告
let videoAd = null;
//视频广告拉取状态
let videoAdPushStatus = false;
 
Page({
 data: {
  //积分总数
  creditsAmountSum: 100
 },
 onLoad(options) {
  let that = this;
 
  that.videoAdShowSetting();
 },
 onShow() {
 },
 videoAdShowSetting: function() {
  var that = this;
  if (wx.createRewardedVideoAd) {
   videoAd = wx.createRewardedVideoAd({
    adUnitId: '自己申请的广告ID'
   })
   videoAd.onLoad(() => {
    //设置广告拉取成功
    videoAdPushStatus = true;
   });
   videoAd.onClose((status) => {
    if (status && status.isEnded || status === undefined) {
     //正常播放结束,可以下发奖励
     that.addUserCredits();
    } else {
     //不下发奖励
     wx.showModal({
      content: '广告未播放完成,无法获取积分',
      showCancel: false
     })
    }
   });
   videoAd.onError(() => {
    that.showToast('获取积分异常,请稍后重试');
   });
  }
 },
 //显示广告
 bindAddCredits: function() {
  let that = this;
  that.showVideoAd();
 },
 //视频广告
 showVideoAd: function() {
  let that = this;
  videoAd.load()
   .then(() => {
    //重置视频广告拉取状态
    videoAdPushStatus = false;
    videoAd.show();
   })
   .catch(err => {
    that.showToast('加载异常,请稍后重试...');
   });
 },
 addUserCredits: function() {
  let that = this;
 
  that.setData({
   creditsAmountSum: 10,
  });
  that.showSuccessToast('已获取积分+10');
 },
 showSuccessToast(title) {
  wx.showToast({
   title: title,
   icon: 'success',
   duration: 3000
  })
 },
 showToast(title) {
  wx.showToast({
   title: title,
   icon: 'none',
   duration: 2000
  })
 }
});