setup a basic ui

.idea/compiler.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CompilerConfiguration">
+    <bytecodeTargetLevel target="11" />
+  </component>
+</project>

.idea/gradle.xml

@@ -1,11 +1,18 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
+  <component name="GradleMigrationSettings" migrationVersion="1" />
   <component name="GradleSettings">
     <option name="linkedExternalProjectsSettings">
       <GradleProjectSettings>
         <option name="testRunner" value="GRADLE" />
         <option name="distributionType" value="DEFAULT_WRAPPED" />
         <option name="externalProjectPath" value="$PROJECT_DIR$" />
+        <option name="modules">
+          <set>
+            <option value="$PROJECT_DIR$" />
+            <option value="$PROJECT_DIR$/app" />
+          </set>
+        </option>
         <option name="resolveModulePerSourceSet" value="false" />
       </GradleProjectSettings>
     </option>

.idea/misc.xml

@@ -1,6 +1,13 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" project-jdk-name="Android Studio default JDK" project-jdk-type="JavaSDK">
+  <component name="DesignSurface">
+    <option name="filePathToZoomLevelMap">
+      <map>
+        <entry key="app/src/main/res/layout/activity_main.xml" value="0.1" />
+      </map>
+    </option>
+  </component>
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="true" project-jdk-name="Android Studio default JDK" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

app/src/main/java/com/vernu/smsgateway/MainActivity.java

@@ -3,12 +3,37 @@ package com.vernu.smsgateway;
 import androidx.appcompat.app.AppCompatActivity;
 
 import android.os.Bundle;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.Switch;
+import android.widget.Toast;
+
+import com.google.android.material.snackbar.Snackbar;
 
 public class MainActivity extends AppCompatActivity {
 
+    private Switch gatewaySwich;
+    private EditText gatewayKeyEditText;
+    private Button updateKeyButton, grantSMSPermissionBtn;
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
+        gatewaySwich = findViewById(R.id.gatewaySwitch);
+        gatewayKeyEditText = findViewById(R.id.gatewayKeyEditText);
+        updateKeyButton = findViewById(R.id.updateKeyButton);
+        grantSMSPermissionBtn = findViewById(R.id.grantSMSPermissionBtn);
+
+
+        grantSMSPermissionBtn.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                Snackbar.make(view, "Pls give permissions", Snackbar.LENGTH_SHORT).show();
+            }
+        });
+
+
     }
 }

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

@@ -6,13 +6,56 @@
     android:layout_height="match_parent"
     tools:context=".MainActivity">
 
-    <TextView
+    <Switch
+        android:id="@+id/gatewaySwitch"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:text="Hello World!"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintLeft_toLeftOf="parent"
-        app:layout_constraintRight_toRightOf="parent"
+        android:text="Status"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent" />
 
+    <EditText
+        android:id="@+id/gatewayKeyEditText"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:ems="10"
+        android:hint="key"
+        android:inputType="text"
+        app:layout_constraintEnd_toStartOf="@+id/updateKeyButton"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/gatewaySwitch" />
+
+    <Button
+        android:id="@+id/updateKeyButton"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Update"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toEndOf="@+id/gatewayKeyEditText"
+        app:layout_constraintTop_toBottomOf="@+id/gatewaySwitch" />
+
+    <Button
+        android:id="@+id/grantSMSPermissionBtn"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Grant SMS Permission"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent" />
+
+    <ScrollView
+        android:layout_width="409dp"
+        android:layout_height="606dp"
+        app:layout_constraintBottom_toTopOf="@+id/grantSMSPermissionBtn"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/updateKeyButton">
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="vertical"></LinearLayout>
+    </ScrollView>
+
 </androidx.constraintlayout.widget.ConstraintLayout>