yichael_intomovie/components/topMain.vue

<template>
    <view class="header-content flex-column">
        <view class="head-title flex-left justify-between">
            <view style="width: 94rpx">
                <u-icon
                    v-if="false"
                    name="arrow-left"
                    color="#000E08"
                    size="42rpx"
                    @click="goBack"
                    bold
                ></u-icon>
                <view v-else></view>
            </view>
            <view>{{ title }}</view>
            <image
                src="@/static/img/icon-switch.svg"
                style="width: 90rpx; height: 90rpx"
            ></image>
        </view>
        <view
            class="flex-row items-center"
            :style="back ? 'padding: 0 28rpx;' : ''"
        >
            <view style="padding-right: 20rpx" @click="goMy">
                <image
                    :class="back ? 'max-head' : 'min-head'"
                    src="@/static/img/head.png"
                ></image>
            </view>
            <!-- <view class="user-box">{{ address }}</view> -->
            <!-- <view class="wallet-box"  @click="modal.open()">连接钱包</view> -->
	
			<view class="user-box" @click="address ? copyToClipboard() : modal.open()">
			  {{ address ? formattedAddress : '连接钱包' }}
			</view>
			<view class="wallet-box" @click="address ? disconnect() : null" :class="{ disabled: !address }">
			  {{ address ? '断开钱包' : '未链接钱包或未成为VIP只可观看3分钟' }}
			</view>

        </view>
    </view>
</template>
<script setup>
	
import { ref,computed,onMounted } from "vue";
// const { address } = useAccount();

const firstTimeKey = 'app_first_time';

const executeFirstTimeOnly = () => {
  // 你的首次执行代码
  console.log("This runs only the first time the app is launched.");
  // 记录已经执行过首次代码
  localStorage.setItem(firstTimeKey, 'false');
};

onMounted(() => {
  const isFirstTime = localStorage.getItem(firstTimeKey) === null;
  if (isFirstTime) {
    disconnect();
  }
});

const formattedAddress = computed(() => {
     if (!address.value) return '';
    return `${address.value.slice(0, 4)}****${address.value.slice(-4)}`;
});

// 添加 copyToClipboard 方法
const copyToClipboard = () => {
    const textToCopy = address.value;
    navigator.clipboard.writeText(textToCopy).then(() => {
        uni.showToast({
            title: '复制成功',
            icon: 'success'
        });
    }).catch(err => {
        console.error("Failed to copy: ", err);
        uni.showToast({
            title: '复制失败',
            icon: 'none'
        });
    });
};
const props = defineProps({
    back: {
        type: Boolean,
        default: false,
    },
    title: {
        type: Boolean,
        default: "首页",
    },
});

// 点击头像后跳转个人中心
const goMy = () => {
    if (!props.back) {
        uni.navigateTo({
            url: "/pages/my/index",
        });
    }
};
const goBack = () => {
    uni.navigateBack();
};

//wallet
import {
		arbitrum,
		mainnet
	} from '@wagmi/core/chains'
	import {
		createWeb3Modal,
		defaultWagmiConfig,
		useWeb3Modal,
		useWeb3ModalEvents,
		useWeb3ModalState,
		useWeb3ModalTheme
	} from '@web3modal/wagmi/vue'
	import {
		chains,
		projectId,
		wagmiConfig
	} from "../utils/config.js";


	// 3. Create modal
	createWeb3Modal({
		wagmiConfig,
		projectId,
		chains,
		themeMode: 'light'
	})

	import {
		useAccount,
		useBalance,
		useDisconnect,
		useReadContract,
		useSignMessage,
		useWriteContract
	} from "@wagmi/vue";
	import ERC20 from '../contract/abi/ERC20.json'
	import {
		ChainId,
		USDT_ADDRESS
	} from "@/contract/address";
	import {
		formatUnits,
		parseUnits
	} from "viem";


	const {
		signMessageAsync
	} = useSignMessage()


	const {
		disconnect
	} = useDisconnect()
	// 4. Use modal composable 。
	// 注意在使用“useWeb3Mode”compositable之前，请调用“createWeb3Model”
	const modal = useWeb3Modal()
	const {
		address,
		chainId,
		isConnected
	} = useAccount()


	//签名
	async function sign() {
		const signature = await signMessageAsync({
			message: 'gm wagmi frens'
		})
		console.log(signature)
	}
	// function getBalance(){
	//   console.log(isConnected.value,chainId.value,address.value)
	// // 读取合约数据
	//   const usdtBalance = useReadContract({
	//     abi:ERC20,
	//     address: USDT_ADDRESS[chainId.value],
	//     functionName: 'balanceOf',
	//     args: [address.value],
	//   })
	//   console.log(usdtBalance)
	// }
	// 获取原生代币余额
	const {
		data: balance
	} = useBalance({
		address
	})
	// 获取 USDT 余额
	const {
		data: usdtBalance
	} = useReadContract({
		abi: ERC20,
		address: USDT_ADDRESS[ChainId.BSC],
		functionName: 'balanceOf',
		args: [address],
	})
	// 获取 USDT授权某个合约额度 直接转账transfer不需要授权 调用合约扣除自己代币的需要先授权
	// 授权方法 approve 参数 合约地址 数量（一般MaxUint256）具体看 abi erc20
	// export const MaxUint256: bigint = BigInt("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
	const {
		data: allowance
	} = useReadContract({
		abi: ERC20,
		address: USDT_ADDRESS[ChainId.BSC],
		functionName: 'allowance',
		//自己地址 合约地址
		args: [address, address],
	})
	const {
		writeContractAsync
	} = useWriteContract()
	
	
defineExpose({
	transfer
})

	async function transfer(tox) {
		console.log('tox====',tox);
		 if (!address.value) {
			uni.showToast({
				title: '请先连接钱包',
				icon: 'none',
				duration: 2000
			});
			return;
		}
		//转给谁
		// const to = "0x6A6374400CBf4A30fEA48AE3DD12F7b9562288fd"
		const to = "0x9e4caaf0525eeb2F92Ab985AacC14B9C8BcfDB82"//小明的钱包
		
		//转多少 这里以 1 个 USDT 举例 因为区块链没有小数 USDT 的代币精度是 18 1个 USDT 在区块链上表示为 1*10**18
		//const value = parseUnits("1", 18) //库封装了方法
		const value = parseUnits(tox, 18) //库封装了方法
		const res = await writeContractAsync({
			abi: ERC20,
			address: USDT_ADDRESS[ChainId.MATCH],
			functionName: 'transfer',
			args: [
				to,
				value
			],
		})
		console.log(res)
	}

</script>
<style lang="less" scoped>
.header-content {
    .user-box {
        width: 276rpx;
        height: 50rpx;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 34rpx;
        font-weight: bold;
        font-size: 30rpx;
        color: #1f1f1f;
        background-color: #6ae199;
        // text-align: center;
        // padding: 10rpx; /* 增加内边距以更好地显示文本 */
    }
    .wallet-box {
        width: 200rpx; /* 调整总长度 */
        height: auto; /* 让高度自适应内容 */
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 34rpx;
        font-weight: bold;
        font-size: 26rpx;
        color: #6c6c6c;
        background-color: #dadada;
        text-align: center;
        margin-left: 36rpx;
        padding: 10rpx; /* 增加内边距以更好地显示文本 */
        word-break: break-word; /* 允许换行 */
        white-space: normal; /* 确保文本正常换行 */
    }
    .wallet-box.disabled {
        pointer-events: none; /* 禁止点击 */
        opacity: 0.6; /* 使不可点击的按钮看起来像禁用的 */
    }
}
.min-head {
    width: 120rpx;
    height: 120rpx;
}
.max-head {
    width: 160rpx;
    height: 160rpx;
}
</style>