app/pages/me/modifyNickname.vue

<template>
  <view class="page">
    <view class="line"></view>
    <view class="single-line-box">
      <input
        class="nickname-input"
        type="text"
        :value="nickname"
        :model="nickname"
        placeholder="请填入昵称~"
        maxlength="16"
        @input="typingContent" />
      <view class="length-cal">
        <text class="length-text">{{ wordsLength }}/16</text>
      </view>
    </view>

    <view class="notice" style="align-self: center">
      <text class="tips">*注：请设置5-16的昵称长度</text>
    </view>
  </view>
</template>

<script>
	import storage from "@/utils/storage.js"; //缓存
	
	import {
		vlogModifyUserInfo
	} from "@/api/vlog"
export default {
  data() {
    return {
      oldNickname: storage.getVlogUserInfo().nickname,
      nickname: storage.getVlogUserInfo().nickname,
      wordsLength: 0,
    };
  },
  onNavigationBarButtonTap() {
    let nickname = this.nickname;
    if (nickname.length < 5) {
      uni.showToast({
        icon: "none",
        title: "昵称太短!",
      });
      return;
    }

    if (nickname.search(/\s/) != -1) {
      uni.showToast({
        icon: "none",
        title: "不允许包含空格!",
      });
      return;
    }

    let oldNickname = this.oldNickname;
    if (oldNickname == nickname) {
      uni.showToast({
        icon: "none",
        title: "昵称未改变!",
      });
      return;
    }
    this.updateNickname();
  },
  onShow() {
    this.wordsLength = this.nickname.length;
  },
  methods: {
    async updateNickname() {
      let me = this;
      let userId = storage.getVlogUserInfo().id;
      let nickname = this.nickname;
      let pendingUserInfo = {
        id: userId,
        nickname: nickname,
		type:1
      };

      // 修改昵称
	  var result = await vlogModifyUserInfo(pendingUserInfo,1)
	  console.log(result)
	  if (result.data.status == 200) {
	    let userInfoUpdated = result.data.data;
	    // 重置本地用户信息
	    storage.setVlogUserInfo(userInfoUpdated);
	    uni.showToast({
	      title: result.data.msg,
	      icon: "none",
	      duration: 3000,
	    });
	    var timer = setTimeout(() => {
		  clearTimeout(timer)
	      uni.navigateBack({
	        delta: 1,
	        animationType: "fade-out",
	      });
	    }, 1000);
	  } else {
	    uni.showToast({
	      title: result.data.msg,
	      icon: "none",
	      duration: 3000,
	    });
	  }
    },
    typingContent(e) {
      this.nickname = e.detail.value;
      this.wordsLength = this.nickname.length;
    },
  },
};
</script>

<style lang="scss">
.page {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  background-color: #181b27;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;

  .line {
    height: 1rpx;
    background-color: #393a41;
    width: 750rpx;
  }

  .single-line-box {
    align-self: center;
    display: flex;
    flex-direction: row;
    justify-content: flex-start;
    padding: 30rpx;
    margin-top: 20rpx;
    .nickname-input {
      padding-left: 20rpx;
      color: #ffffff;
      font-size: 28rpx;
      width: 600rpx;
      height: 100rpx;
      background-color: #4a4c52;
      border-top-left-radius: 20rpx;
      border-bottom-left-radius: 20rpx;
    }
    .length-cal {
      width: 100rpx;
      height: 100rpx;
      background-color: #4a4c52;
      padding-right: 20rpx;
      display: flex;
      flex-direction: column;
      justify-content: flex-end;
      padding-bottom: 12rpx;
      border-top-right-radius: 20rpx;
      border-bottom-right-radius: 20rpx;
      .length-text {
        font-size: 24rpx;
        font-weight: 400;
        color: #f1f1f1;
      }
    }
  }

  .notice {
    align-self: center;
    .tips {
      font-size: 24rpx;
      font-weight: 400;
      color: #bfbfbf;
      width: 700rpx;
    }
  }
}
</style>