1. issue #36. Add peer url form

app/src/main/java/io/github/chronosx88/yggdrasil/PeerListActivity.kt

@@ -5,12 +5,14 @@ import android.content.Intent
 import android.os.Build
 import android.os.Bundle
 import android.view.*
+import android.webkit.URLUtil
 import android.widget.Button
 import android.widget.ListView
 import android.widget.PopupWindow
 import android.widget.TextView
 import androidx.appcompat.app.AlertDialog
 import androidx.appcompat.app.AppCompatActivity
+import androidx.preference.PreferenceManager
 import com.google.android.material.floatingactionbutton.FloatingActionButton
 import com.google.gson.Gson
 import com.google.gson.reflect.TypeToken
@@ -40,6 +42,7 @@ import java.nio.charset.Charset
 class PeerListActivity : AppCompatActivity() {
 
     companion object {
+        const val PEER_LIST = "PEER_LIST"
         const val PEER_LIST_URL = "https://publicpeers.neilalexander.dev/publicnodes.json"
         const val CACHE_NAME = "PEER_LIST_CACHE"
         const val ONLINE_PEERINFO_LIST = "online_peer_info_list"
@@ -59,6 +62,7 @@ class PeerListActivity : AppCompatActivity() {
         }
     }
 
+    private var peerListUrl = PEER_LIST_URL
     private var peerListPing = true
     var popup: PopupWindow? = null
     var adapter: DropDownAdapter? = null
@@ -70,6 +74,13 @@ class PeerListActivity : AppCompatActivity() {
         findViewById<FloatingActionButton>(R.id.fab).setOnClickListener { _ ->
             addNewPeer()
         }
+        val preferences =
+            PreferenceManager.getDefaultSharedPreferences(this.baseContext)
+        var peerListUrl: String =
+            preferences.getString(PEER_LIST, "")!!
+        if(!peerListUrl.isNullOrBlank()){
+            peerListUrl = this@PeerListActivity.peerListUrl
+        }
         var extras = intent.extras
         var peerList = findViewById<ListView>(R.id.peerList)
         var adapter = SelectPeerInfoListAdapter(this, arrayListOf(), mutableSetOf())
@@ -108,7 +119,7 @@ class PeerListActivity : AppCompatActivity() {
                             }
                         }
                     }
-                    var json = downloadJson(PEER_LIST_URL)
+                    var json = downloadJson(peerListUrl)
                     var countries = CCPCountry.getLibraryMasterCountriesEnglish()
                     val mapType: Type = object :
                         TypeToken<Map<String?, Map<String, Status>>>() {}.type
@@ -196,6 +207,27 @@ class PeerListActivity : AppCompatActivity() {
         }
     }
 
+    private fun editPeerListUrl() {
+        val view: View = LayoutInflater.from(this).inflate(R.layout.edit_peer_list_url_dialog, null)
+        val ab: AlertDialog.Builder = AlertDialog.Builder(this)
+        ab.setCancelable(true).setView(view)
+        var ad = ab.show()
+        var saveButton = view.findViewById<Button>(R.id.save)
+        saveButton.setOnClickListener{
+            var urlInput = view.findViewById<TextView>(R.id.urlInput)
+            var url = urlInput.text.toString()
+            if(!URLUtil.isValidUrl(url)){
+                urlInput.error = "The URL is invalid!"
+                return@setOnClickListener;
+            }
+            peerListUrl = url
+            val preferences =
+                PreferenceManager.getDefaultSharedPreferences(this.baseContext)
+            preferences.edit().putString(PEER_LIST, peerListUrl).apply()
+            ad.dismiss()
+        }
+    }
+
     private fun addNewPeer() {
         val view: View = LayoutInflater.from(this).inflate(R.layout.new_peer_dialog, null)
         val countryCode: String = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
@@ -315,6 +347,14 @@ class PeerListActivity : AppCompatActivity() {
             setResult(Activity.RESULT_OK, result)
             finish()
         }
+
+        val editUrl = menu.findItem(R.id.editUrlItem) as MenuItem
+        item.setActionView(R.layout.menu_edit_url)
+        val editUrlButton = editUrl
+            .actionView.findViewById<Button>(R.id.editUrlButton)
+        editUrlButton.setOnClickListener {
+            editPeerListUrl()
+        }
         return true
     }
 

app/src/main/res/layout/edit_peer_list_url_dialog.xml

@@ -0,0 +1,44 @@
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+        xmlns:app="http://schemas.android.com/apk/res-auto"
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent"
+        android:padding="10dp"
+        android:background="@color/grey">
+
+    <com.google.android.material.textfield.TextInputLayout
+            android:id="@+id/url"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent"
+            android:layout_margin="10dp"
+            app:boxBackgroundMode="none"
+            android:background="@drawable/edit_text_rounded_corner"
+            android:textColorHint="@color/white"
+            style="@style/EditText.OutlinedBox">
+
+        <com.google.android.material.textfield.TextInputEditText
+                android:id="@+id/urlInput"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:hint="URL"
+                android:textColor="@color/white"
+                android:inputType="number"
+                android:textCursorDrawable="@null"/>
+    </com.google.android.material.textfield.TextInputLayout>
+
+    <Button
+            android:id="@+id/save"
+            android:layout_width="match_parent"
+            android:layout_height="60dp"
+            android:layout_marginTop="20dp"
+            android:layout_marginBottom="10dp"
+            android:layout_marginLeft="10dp"
+            android:layout_marginRight="10dp"
+            app:layout_constraintTop_toBottomOf="@+id/url"
+            android:background="@drawable/button_selector"
+            app:backgroundTint="@null"
+            android:text="SAVE"
+            android:textColor="@color/white"/>
+
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/menu_edit_url.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout
+        xmlns:android="http://schemas.android.com/apk/res/android"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:gravity="center_vertical">
+    <Button xmlns:android="http://schemas.android.com/apk/res/android"
+            android:id="@+id/editUrlButton"
+            android:layout_height="wrap_content"
+            android:layout_width="wrap_content"
+            android:text="EDIT URL"
+            android:background="@android:color/transparent"/>
+</RelativeLayout>

app/src/main/res/menu/save.xml

@@ -1,6 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
 <menu xmlns:android="http://schemas.android.com/apk/res/android"
         xmlns:app="http://schemas.android.com/apk/res-auto">
+    <item   android:id="@+id/editUrlItem"
+            android:title=""
+            app:actionLayout="@layout/menu_edit_url"
+            app:showAsAction="always"/>
     <item   android:id="@+id/saveItem"
             android:title=""
             app:actionLayout="@layout/menu_save"