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5 uniapp开发dapp浏览器

之前有一个uniapp开发的钱包，现在需要嵌套一个dapp浏览器进去，与市面上的dapp进行交互，请教一下各位大佬的思路，webview里面怎样能实现联合起调

0 条评论
分类：DeFi

最佳答案 2021-11-12 20:28

定制 webview 可以实现 native 代码和 JavaScript 代码相互调用。

因此只需要 hook 几个web3 的接扣，调用 native 代码即可。

trustwallet 确实是一个不错的参考对象。

2 条评论

Tiny熊

擅长：智能合约,以太坊 | 采纳率 33% | 回答于 2021-11-12 20:28

默认排序时间排序

其它 4 个回答

j936 2022-07-28 09:13

step1:注入
https://github.com/trustwallet/trust-web3-provider/blob/master/dist/trust-min.js
step2:注入
uni.webview.js

step3:

```var curWebView = plus.webview.currentWebview();
var config;
config = {
    address: curWebView.adder,
    chainId: curWebView.chainId,
    rpcUrl: curWebView.node
};

try{
	window.ethereum = new trustwallet.Provider(config)
	window.locknext = false
	window.ethereum = Object.assign(window.ethereum,{
		isMetaMask: true,
		selectedAddress:curWebView.adder,
		chainId: curWebView.chainId,
		networkVersion: "3",
		autoRefreshOnNetworkChange: true
	})
}catch(err){
	console.log(err)
}
window.ethereum.postMessage = function(handler, id, data) {
	console.log(handler, id, JSON.stringify(data))
	try{
		switch (handler) {
		  case 'signTransaction':
			window.waitSignTransaction = waitRunHash((hash)=>{
				console.log(`result:${hash}`)
				window.ethereum.sendResponse(id,hash)
			})
			window.waitSignTransaction.next()
			appSign(handler,data)
			
		  break;
		  case 'signMessage':
		  
		  break;
		  case 'signPersonalMessage':
			window.waitMessageSign = waitRunSign((sign)=>{
				console.log(`result:${sign}`)
				window.ethereum.sendResponse(id,sign)
			})
			window.waitMessageSign.next()
			
			appSign(handler,data.data)
		  break;
		  case 'signTypedMessage':
		  case 'eth_signTypedData_v3':
			window.waitSignTransaction = waitRunHash((hash)=>{
				console.log(`result:${hash}`)
				window.ethereum.sendResponse(id,hash)
			})
			data = {
				from:data.data.raw.message.owner,
				to:data.data.raw.message.spender,
				value:data.data.raw.message.value,
				nonce:data.data.raw.message.nonce,
				deadline:data.data.raw.message.deadline,
				data:data.data
			}
			window.waitSignTransaction.next()
			appSign(handler,data)
		  break;
		
		  case 'requestAccounts':
		  case 'eth_requestAccounts':
			
		  break;
		  default:
			alert("I won't support it")
		  break;
		}
	}catch(err){
		alert(err)
	}
	
};

window.ethereum.enable = ()=>{
	return new Promise((resolve,reject) => {
		resolve([curWebView.adder])
	})
}
window.web3.currentProvider.enable = () => {
	return new Promise((resolve,reject) => {
		resolve([curWebView.adder])
	})
}
window.ethereum.isConnected = () => {
	return true
}
window.ethereum.autoRefreshOnNetworkChange = false
```

c1h2e1 2021-11-12 14:45

YGCool 2022-01-13 11:34

稷小米 2022-02-16 18:25