fragment のwebviewにて loadurlをしてウェブページを表示します。
言語:kotlin
完成図
ボタン押下でフラグメントの表示と、WebViewの表示
さらに任意のURLを表示

MainActivity.kt
btn_fragmentにてfragment遷移します。
class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
btn_fragment.setOnClickListener {
val webViewFragment = WebViewFragment()
val fragmentTransaction = supportFragmentManager.beginTransaction()
fragmentTransaction.add(R.id.fragment_container, webViewFragment)
fragmentTransaction.commit()
}
}
}
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<Button
android:id="@+id/btn_fragment"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
android:text="@string/btn_fragment" />
WebViewFragment.kt
package com.example.skillschallenge
import android.os.Bundle
import androidx.fragment.app.Fragment
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.webkit.WebView
import android.webkit.WebViewClient
const val NETWORK_ADDRESS ="https://tanukigolf.com/"
class WebViewFragment : Fragment() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
}
override fun onCreateView(
inflater: LayoutInflater, container: ViewGroup?,
savedInstanceState: Bundle?
): View? {
// WebViewのデバッグを有効にする
WebView.setWebContentsDebuggingEnabled(true)
val v: View = inflater.inflate(R.layout.fragment_web_view, container, false)
val mWebView = v.findViewById<View>(R.id.web_view) as WebView
//webview内のJavaScriptを有効にする
mWebView.settings.javaScriptEnabled = true
mWebView.webViewClient = WebViewClient()
mWebView.loadUrl(NETWORK_ADDRESS)
return v
}
}
fragment_web_view.xml
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
tools:context=".WebViewFragment">
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="@string/hello_blank_fragment" />
<WebView
android:id="@+id/web_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent">
</WebView>
</FrameLayout>


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