Created
October 18, 2021 15:04
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@JavascriptInterface に解析用メソッド呼び出しを追加
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package com.example.webscrapingtest.view | |
import androidx.lifecycle.ViewModelProvider | |
import android.os.Bundle | |
import android.util.Log | |
import androidx.fragment.app.Fragment | |
import android.view.LayoutInflater | |
import android.view.View | |
import android.view.ViewGroup | |
import android.webkit.JavascriptInterface | |
import android.webkit.WebView | |
import android.webkit.WebViewClient | |
import androidx.databinding.DataBindingUtil | |
import com.example.webscrapingtest.R | |
import com.example.webscrapingtest.databinding.MainFragmentBinding | |
import com.example.webscrapingtest.viewmodel.MainViewModel | |
import kotlinx.android.synthetic.main.main_fragment.view.* | |
class MainFragment : Fragment() { | |
private lateinit var webViewModel: MainViewModel | |
private lateinit var binding: MainFragmentBinding | |
companion object { | |
fun newInstance() = MainFragment() | |
} | |
private lateinit var viewModel: MainViewModel | |
override fun onCreateView( | |
inflater: LayoutInflater, | |
container: ViewGroup?, | |
savedInstanceState: Bundle? | |
): View { | |
binding = DataBindingUtil.inflate(inflater, R.layout.main_fragment, container, false) | |
binding.setLifecycleOwner(this) | |
val view = binding.root | |
view.webView.settings.javaScriptEnabled = true | |
// 規定のブラウザではなく、WebViewで表示するためコード | |
view.webView.webViewClient = object : ViewSourceClient(){} | |
view.webView.addJavascriptInterface(this, "fragment") | |
view.webView.loadUrl("https://yahoo.co.jp/") | |
return binding.getRoot() | |
} | |
override fun onActivityCreated(savedInstanceState: Bundle?) { | |
super.onActivityCreated(savedInstanceState) | |
viewModel = ViewModelProvider(this).get(MainViewModel::class.java) | |
} | |
open class ViewSourceClient : WebViewClient() { | |
override fun onPageFinished(view: WebView, url: String) { | |
view.loadUrl("javascript:window.fragment.viewSource(document.getElementsByTagName('html')[0].outerHTML);") | |
} | |
} | |
@JavascriptInterface | |
fun viewSource(src: String) { | |
// 追加 | |
viewModel.analyzeHtml(src) | |
} | |
} |
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