Add WebViewActivity.kt

app/src/main/AndroidManifest.xml

@@ -34,8 +34,11 @@
 
         <activity
             android:name=".app.ChatRoomActivity"
-            android:theme="@style/AppTheme">
-        </activity>
+            android:theme="@style/AppTheme" />
+
+        <activity
+            android:name=".webview.WebViewActivity"
+            android:theme="@style/AppTheme" />
     </application>
 
 </manifest>
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app/src/main/java/chat/rocket/android/webview/WebViewActivity.kt

+package chat.rocket.android.webview
+
+import android.annotation.SuppressLint
+import android.content.Context
+import android.content.Intent
+import android.os.Bundle
+import android.support.v7.app.AppCompatActivity
+import android.webkit.WebViewClient
+import chat.rocket.android.R
+import kotlinx.android.synthetic.main.activity_web_view.*
+import kotlinx.android.synthetic.main.app_bar.*
+
+fun Context.webViewIntent(webPageUrl: String): Intent {
+    return Intent(this, WebViewActivity::class.java).apply {
+        putExtra(INTENT_WEB_PAGE_URL, webPageUrl)
+    }
+}
+
+private const val INTENT_WEB_PAGE_URL = "web_page_url"
+
+class WebViewActivity : AppCompatActivity() {
+    private lateinit var webPageUrl: String
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_web_view)
+
+        webPageUrl = intent.getStringExtra(INTENT_WEB_PAGE_URL)
+        requireNotNull(webPageUrl) { "no web_page_url provided in Intent extras" }
+
+        setupToolbar()
+    }
+
+    override fun onResume() {
+        super.onResume()
+        setupWebView()
+    }
+
+    override fun onBackPressed() {
+        if (web_view.canGoBack()) {
+            web_view.goBack()
+        } else {
+            super.onBackPressed()
+        }
+    }
+
+    private fun setupToolbar() {
+        toolbar.title = getString(R.string.title_legal_terms)
+        toolbar.setNavigationIcon(R.drawable.ic_close_white_24dp)
+        toolbar.setNavigationOnClickListener {
+            finish()
+        }
+    }
+
+    @SuppressLint("SetJavaScriptEnabled")
+    private fun setupWebView() {
+        web_view.settings.javaScriptEnabled = true
+        web_view.webViewClient = WebViewClient()
+        web_view.loadUrl(webPageUrl)
+    }
+}
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app/src/main/res/layout/activity_web_view.xml

+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout 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"
+    tools:context=".webview.WebViewActivity">
+
+    <include
+        android:id="@+id/layout_app_bar"
+        layout="@layout/app_bar" />
+
+    <WebView
+        android:id="@+id/web_view"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:layout_below="@+id/layout_app_bar" />
+</RelativeLayout>
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