2. completed schema dropdown

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

@@ -1,15 +1,15 @@
 package io.github.chronosx88.yggdrasil
 
 import android.app.Activity
+import android.content.Context
 import android.content.Intent
 import android.os.Build
 import android.os.Bundle
-import android.view.LayoutInflater
+import android.view.*
-import android.view.Menu
-import android.view.MenuItem
-import android.view.View
 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 com.google.android.material.floatingactionbutton.FloatingActionButton
@@ -18,6 +18,7 @@ import com.google.gson.reflect.TypeToken
 import com.hbb20.CCPCountry
 import io.github.chronosx88.yggdrasil.models.PeerInfo
 import io.github.chronosx88.yggdrasil.models.Status
+import io.github.chronosx88.yggdrasil.models.config.DropDownAdapter
 import io.github.chronosx88.yggdrasil.models.config.SelectPeerInfoListAdapter
 import io.github.chronosx88.yggdrasil.models.config.Utils.Companion.deserializeStringList2PeerInfoSet
 import io.github.chronosx88.yggdrasil.models.config.Utils.Companion.ping
@@ -52,6 +53,9 @@ class PeerListActivity : AppCompatActivity() {
 
     var isLoading = true;
 
+    var popupAddress: PopupWindow? = null
+    var adapter: DropDownAdapter? = null
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_peer_list)
@@ -128,12 +132,58 @@ class PeerListActivity : AppCompatActivity() {
         } else {
             this.resources.configuration.locale.country
         }
+        var schemaInput = view.findViewById<TextView>(R.id.schemaInput)
+        schemaInput.setOnFocusChangeListener { v, b ->
+            if(schemaInput.isFocused) {
+                val height = -1 * v.height +30
+                getAddressListPopup()?.showAsDropDown(v, -10, height)
+            }
+        }
+        getPopupWindow(R.layout.spinner_item, resources.getStringArray(R.array.schemas), schemaInput, getString(R.string.schema));
         view.findViewById<com.hbb20.CountryCodePicker>(R.id.ccp).setCountryForNameCode(countryCode)
         val ab: AlertDialog.Builder = AlertDialog.Builder(this)
         ab.setCancelable(true).setView(view)
         ab.show()
     }
 
+    fun onClickSchemaList(v: View) {
+        val height = -1 * v.height +30
+        getAddressListPopup()?.showAsDropDown(v, -10, height)
+    }
+
+    private fun getAddressListPopup(): PopupWindow? {
+        return popupAddress
+    }
+
+    private fun getPopupWindow(
+        textViewResourceId: Int,
+        objects: Array<String>,
+        editText: TextView,
+        hint: String?
+    ): PopupWindow? {
+        // initialize a pop up window type
+        val popupWindow = PopupWindow(this)
+        // the drop down list is a list view
+        val listView = ListView(this)
+        listView.dividerHeight = 0
+        // set our adapter and pass our pop up window contents
+        adapter = DropDownAdapter(this, textViewResourceId, objects, popupWindow, editText)
+        listView.adapter = adapter
+        // set the item click listener
+        listView.onItemClickListener = adapter
+        // some other visual settings
+        popupWindow.isFocusable = true
+        //popupWindow.setWidth(400);
+        val display: Display =
+            (this.getSystemService(Context.WINDOW_SERVICE) as WindowManager).getDefaultDisplay()
+        popupWindow.width = display.getWidth() - 230
+        popupWindow.height = WindowManager.LayoutParams.WRAP_CONTENT
+        // set the list view as pop up window content
+        popupWindow.contentView = listView
+        popupAddress = popupWindow
+        return popupWindow
+    }
+
     override fun onCreateOptionsMenu(menu: Menu): Boolean {
         // Inflate the menu; this adds items to the action bar if it is present.
         menuInflater.inflate(R.menu.save, menu)

app/src/main/java/io/github/chronosx88/yggdrasil/models/config/DropDownAdapter.kt

@@ -0,0 +1,69 @@
+package io.github.chronosx88.yggdrasil.models.config
+
+import android.content.Context
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.view.animation.Animation
+import android.view.animation.AnimationUtils
+import android.widget.AdapterView
+import android.widget.AdapterView.OnItemClickListener
+import android.widget.ArrayAdapter
+import android.widget.PopupWindow
+import android.widget.TextView
+import io.github.chronosx88.yggdrasil.R
+
+
+class DropDownAdapter(
+    context: Context,
+    textViewResourceId: Int,
+    objects: Array<String>,
+    popup: PopupWindow,
+    editText: TextView
+) :
+    ArrayAdapter<String?>(context, textViewResourceId, objects), OnItemClickListener {
+
+    private val objects: Array<String>
+    private val popup: PopupWindow
+    private val editText: TextView
+    override fun getDropDownView(position: Int, convertView: View?, parent: ViewGroup?): View? {
+        return getCustomView(position, convertView, parent)
+    }
+
+    override fun getView(position: Int, convertView: View?, parent: ViewGroup): View {
+        return getCustomView(position, convertView, parent)
+    }
+
+    fun getCustomView(position: Int, convertView: View?, parent: ViewGroup?): View {
+        var convertView: View? = convertView
+        if (convertView == null) {
+            convertView =
+                LayoutInflater.from(context).inflate(R.layout.dropdown_item, parent, false)
+        }
+        val sub = convertView?.findViewById(R.id.sub) as TextView
+        val address = objects[position]
+        sub.text = address
+        return convertView!!
+    }
+
+    override fun onItemClick(arg0: AdapterView<*>?, v: View, arg2: Int, arg3: Long) {
+
+        // get the context and main activity to access variables
+        // add some animation when a list item was clicked
+        val fadeInAnimation: Animation =
+            AnimationUtils.loadAnimation(context, android.R.anim.fade_in)
+        fadeInAnimation.duration = 10
+        v.startAnimation(fadeInAnimation)
+        val text: View = v.findViewById(R.id.sub) ?: return
+        val address = (text as TextView).text.toString()
+        // dismiss the pop up
+        popup.dismiss()
+        editText.text = address
+    }
+
+    init {
+        this.objects = objects
+        this.popup = popup
+        this.editText = editText
+    }
+}

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

@@ -0,0 +1,29 @@
+<?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="wrap_content"
+        android:paddingLeft="15dp"
+        android:paddingRight="15dp"
+        android:paddingTop="12dp"
+        android:paddingBottom="12dp"
+        android:background="@drawable/info_panel_rounded_corner">
+    <LinearLayout
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:gravity="center_vertical">
+        <ImageView
+                android:id="@+id/icon"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content" />
+        <TextView
+                android:id="@+id/sub"
+                android:padding="10dp"
+                android:textColor="@color/white"
+                android:textSize="14dp"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:hint="Schema"
+                android:ellipsize="middle"
+                android:singleLine="true"/>
+    </LinearLayout>
+</RelativeLayout>

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

@@ -2,7 +2,6 @@
         xmlns:app="http://schemas.android.com/apk/res-auto"
         android:layout_height="wrap_content"
         android:layout_width="match_parent"
-        xmlns:mask="http://schemas.android.com/tools"
         android:padding="10dp"
         android:background="@color/grey">
 
@@ -18,12 +17,14 @@
             android:textColorHint="@color/white"
             style="@style/EditText.OutlinedBox">
         <com.google.android.material.textfield.TextInputEditText
+                android:id="@+id/schemaInput"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
                 android:hint="Schema"
                 android:textColor="@color/white"
                 android:inputType="text"
-                android:textCursorDrawable="@null"/>
+                android:textCursorDrawable="@null"
+                android:onClick="onClickSchemaList"/>
     </com.google.android.material.textfield.TextInputLayout>
 
     <com.google.android.material.textfield.TextInputLayout
@@ -39,6 +40,7 @@
             style="@style/EditText.OutlinedBox">
 
         <com.google.android.material.textfield.TextInputEditText
+                android:id="@+id/ipInput"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
                 android:digits="0123456789."
@@ -61,6 +63,7 @@
             style="@style/EditText.OutlinedBox">
 
         <com.google.android.material.textfield.TextInputEditText
+                android:id="@+id/portInput"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
                 android:digits="0123456789"

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

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<TextView
+        xmlns:android="http://schemas.android.com/apk/res/android"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:paddingLeft="20dp"
+        android:paddingRight="20dp"
+        android:paddingTop="15dp"
+        android:paddingBottom="15dp"
+        android:textSize="20dp"
+        android:gravity="left"
+        android:textColor="@color/white"
+        />

app/src/main/res/values/arrays.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string-array name="schemas">
+        <item>TCP</item>
+        <item>TLS</item>
+    </string-array>
+</resources>

app/src/main/res/values/strings.xml

@@ -6,4 +6,5 @@
     <string name="title_activity_peer_list">Edit peers</string>
     <string name="title_activity_dns_list">Edit DNS</string>
     <string name="address_copied">Address copied</string>
+    <string name="schema">Schema</string>
 </resources>