Added basic onboarding activity

app/src/main/java/com/rtbishop/look4sat/SharedViewModel.kt

@@ -50,7 +50,10 @@ class SharedViewModel @ViewModelInject constructor(
     private var shouldTriggerCalculation = true
 
     init {
-        if (prefsManager.isFirstLaunch()) updateDefaultSourcesAndEntries()
+        if (prefsManager.isFirstLaunch()) {
+            updateDefaultSourcesAndEntries()
+            prefsManager.setFirstLaunchDone()
+        }
         startApplicationTimer()
     }
 

app/src/main/java/com/rtbishop/look4sat/ui/activities/MainActivity.kt

@@ -12,11 +12,11 @@ import dagger.hilt.android.AndroidEntryPoint
 class MainActivity : AppCompatActivity() {
 
     override fun onCreate(savedInstanceState: Bundle?) {
-        setTheme(R.style.AppTheme)
         super.onCreate(savedInstanceState)
-        val binding = ActivityMainBinding.inflate(layoutInflater)
-        setContentView(binding.root)
-        val navHost = supportFragmentManager.findFragmentById(R.id.nav_host) as NavHostFragment
-        binding.navBottom.setupWithNavController(navHost.navController)
+        ActivityMainBinding.inflate(layoutInflater).apply {
+            setContentView(root)
+            val navHost = supportFragmentManager.findFragmentById(R.id.nav_host) as NavHostFragment
+            navBottom.setupWithNavController(navHost.navController)
+        }
     }
 }

app/src/main/java/com/rtbishop/look4sat/ui/splash/FirstFragment.kt

@@ -0,0 +1,6 @@
+package com.rtbishop.look4sat.ui.splash
+
+import androidx.fragment.app.Fragment
+import com.rtbishop.look4sat.R
+
+class FirstFragment : Fragment(R.layout.fragment_first)

app/src/main/java/com/rtbishop/look4sat/ui/splash/SecondFragment.kt

@@ -0,0 +1,6 @@
+package com.rtbishop.look4sat.ui.splash
+
+import androidx.fragment.app.Fragment
+import com.rtbishop.look4sat.R
+
+class SecondFragment: Fragment(R.layout.fragment_second)

app/src/main/java/com/rtbishop/look4sat/ui/splash/SplashActivity.kt

@@ -0,0 +1,71 @@
+package com.rtbishop.look4sat.ui.splash
+
+import android.content.Intent
+import android.os.Bundle
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.FragmentActivity
+import androidx.viewpager2.adapter.FragmentStateAdapter
+import androidx.viewpager2.widget.ViewPager2
+import com.rtbishop.look4sat.R
+import com.rtbishop.look4sat.databinding.ActivitySplashBinding
+import com.rtbishop.look4sat.ui.activities.MainActivity
+import com.rtbishop.look4sat.utility.PrefsManager
+import dagger.hilt.android.AndroidEntryPoint
+import javax.inject.Inject
+
+@AndroidEntryPoint
+class SplashActivity : FragmentActivity() {
+
+    private val pagesCount = 3
+
+    @Inject
+    lateinit var prefsManager: PrefsManager
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        if (prefsManager.isFirstLaunch()) showOnboarding()
+        else startMainActivity()
+    }
+
+    private fun showOnboarding() {
+        setTheme(R.style.AppTheme)
+        ActivitySplashBinding.inflate(layoutInflater).apply {
+            setContentView(root)
+            splashPager.apply {
+                adapter = SplashPagerAdapter(this@SplashActivity)
+                registerOnPageChangeCallback(object : ViewPager2.OnPageChangeCallback() {
+                    override fun onPageSelected(position: Int) {
+                        super.onPageSelected(position)
+                        if (position == pagesCount - 1) {
+                            splashNext.setImageResource(R.drawable.ic_check)
+                        }
+                    }
+                })
+//                isUserInputEnabled = false
+            }
+            splashNext.setOnClickListener {
+                if (splashPager.currentItem < pagesCount - 1) splashPager.currentItem++
+                else if (splashPager.currentItem == pagesCount - 1) startMainActivity()
+            }
+        }
+    }
+
+    private fun startMainActivity() {
+        startActivity(Intent(this, MainActivity::class.java))
+    }
+
+    private inner class SplashPagerAdapter(activity: FragmentActivity) :
+        FragmentStateAdapter(activity) {
+
+        override fun getItemCount(): Int = pagesCount
+
+        override fun createFragment(position: Int): Fragment {
+            return when (position) {
+                0 -> FirstFragment()
+                1 -> SecondFragment()
+                2 -> ThirdFragment()
+                else -> FirstFragment()
+            }
+        }
+    }
+}

app/src/main/java/com/rtbishop/look4sat/ui/splash/ThirdFragment.kt

@@ -0,0 +1,6 @@
+package com.rtbishop.look4sat.ui.splash
+
+import androidx.fragment.app.Fragment
+import com.rtbishop.look4sat.R
+
+class ThirdFragment : Fragment(R.layout.fragment_third)

app/src/main/java/com/rtbishop/look4sat/utility/PrefsManager.kt

@@ -79,13 +79,13 @@ class PrefsManager @Inject constructor(val preferences: SharedPreferences) {
     }
 
     fun isFirstLaunch(): Boolean {
-        val isFirstLaunch = preferences.getBoolean(keyIsFirstLaunch, true)
-        return if (isFirstLaunch) {
-            preferences.edit {
-                putBoolean(keyIsFirstLaunch, false)
-                apply()
-            }
-            isFirstLaunch
-        } else isFirstLaunch
+        return preferences.getBoolean(keyIsFirstLaunch, true)
+    }
+
+    fun setFirstLaunchDone() {
+        preferences.edit {
+            putBoolean(keyIsFirstLaunch, false)
+            apply()
+        }
     }
 }