taro 登录案例

妖狐艹你老母 2021-07-24 17:03 708阅读 0赞

import Taro from '@tarojs/taro'
    import { View,Text,Button} from '@tarojs/components'
    import React,{ Component} from 'react'
    
    import './index.less'
    import { loginCode} from '../../utils/api/index'
    
    class Login extends Component{ 
    
        //验证是否登录,进行自动登录的操作
        async componentDidMount()
        { 
            let that=this;
            Taro.checkSession({ 
                success()
                { 
    
                    let code=Taro.getStorageSync('key');
                    if(code)
                    { 
                        that.info();
                        Taro.switchTab({ url:'/pages/index/index'});
                    }
                    
                },
                fail()
                { 
                    that.info();
                }
            })
    
            
        }
    
        //未登录时,快捷登录操作
        info=(e)=>
        { 
            
            Taro.getUserInfo({ 
                success: function(res) { 
                    
    
                    //存储等操作
                    Taro.login({ 
                        success:async (res)=>{ 
                            console.log(res.code);
                            //获取open_id和session_id
                            let code=await loginCode(res.code);
                            Taro.setStorageSync('key',code.data);
    
                        }
                    })
                    Taro.switchTab({ url:'/pages/index/index'});
    
                },
                fail(res)
                { 
                    Taro.showToast({ 
                        icon:'none',
                        title:'请先授权登录'
                    })
                }
            })
        }
    
    
        render()
        { 
            return(
    
                <View className='l-c'>
                    
                    <Button type='primary' size='default' openType='getUserInfo' onGetUserInfo={ this.info}>快捷登录</Button>
    
                </View>
            )
        }
    }
    
    export default Login