[demo-bug] Fixed empty View for Json demo.

Author: FranRiadigos

app/src/main/java/com/chattylabs/demo/voice/BuildFromJsonActivity.java

@@ -2,7 +2,9 @@
 
 import android.annotation.SuppressLint;
 import android.os.Bundle;
+import android.support.constraint.ConstraintLayout;
 import android.view.Gravity;
+import android.view.ViewGroup;
 import android.widget.AbsListView;
 import android.widget.ArrayAdapter;
 import android.widget.Button;
@@ -40,6 +42,7 @@ protected void onCreate(Bundle savedInstanceState) {
     }
 
     private void initViews() {
+        ViewGroup root = findViewById(R.id.root);
         Button proceed = findViewById(R.id.proceed);
         proceed.setOnClickListener(v -> {
             loadConversation();
@@ -50,13 +53,8 @@ private void initViews() {
                 R.id.conversation_item_text,
                 new ArrayList<>());
         listViewAdapter.setNotifyOnChange(true);
-        TextView emptyView = new TextView(this);
-        emptyView.setText("Choose an addon and press on proceed");
-        emptyView.setLayoutParams(new AbsListView.LayoutParams(
-                AbsListView.LayoutParams.WRAP_CONTENT,
-                AbsListView.LayoutParams.WRAP_CONTENT, Gravity.CENTER));
+        conversationListView.setEmptyView(findViewById(R.id.empty_text));
         conversationListView.setAdapter(listViewAdapter);
-        conversationListView.setEmptyView(emptyView);
     }
 
     @SuppressLint("MissingPermission")

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

@@ -16,6 +16,16 @@
         android:orientation="horizontal"
         app:layout_constraintGuide_percent="0.65" />
 
+    <TextView
+        android:id="@+id/empty_text"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Choose an addon and press on proceed"
+        app:layout_constraintBottom_toBottomOf="@+id/conversation"
+        app:layout_constraintStart_toStartOf="@+id/conversation"
+        app:layout_constraintEnd_toEndOf="@+id/conversation"
+        app:layout_constraintTop_toTopOf="@+id/conversation" />
+
     <ListView
         android:id="@+id/conversation"
         android:layout_width="0dp"
@@ -36,9 +46,9 @@
         android:layout_width="match_parent"
         android:layout_height="1dp"
         android:background="@android:color/black"
-        app:layout_constraintTop_toTopOf="@+id/guideline"
         app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"/>
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="@+id/guideline" />
 
     <Spinner
         android:id="@+id/addon"