working mib login and list accounts

app/src/main/java/sh/sar/basedbank/ui/onboarding/OnboardingActivity.kt

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+package sh.sar.basedbank.ui.onboarding
+
+import android.content.Intent
+import android.os.Bundle
+import android.view.View
+import androidx.appcompat.app.AppCompatActivity
+import androidx.viewpager2.widget.ViewPager2
+import com.google.android.material.tabs.TabLayoutMediator
+import sh.sar.basedbank.databinding.ActivityOnboardingBinding
+import sh.sar.basedbank.ui.login.LoginActivity
+
+class OnboardingActivity : AppCompatActivity() {
+
+    private lateinit var binding: ActivityOnboardingBinding
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        binding = ActivityOnboardingBinding.inflate(layoutInflater)
+        setContentView(binding.root)
+
+        val adapter = OnboardingPagerAdapter(this)
+        binding.viewPager.adapter = adapter
+
+        TabLayoutMediator(binding.dotsIndicator, binding.viewPager) { _, _ -> }.attach()
+
+        binding.viewPager.registerOnPageChangeCallback(object : ViewPager2.OnPageChangeCallback() {
+            override fun onPageSelected(position: Int) {
+                updateButtons(position, adapter.itemCount)
+            }
+        })
+        updateButtons(0, adapter.itemCount)
+
+        binding.btnNext.setOnClickListener {
+            val next = binding.viewPager.currentItem + 1
+            if (next < adapter.itemCount) binding.viewPager.currentItem = next
+        }
+
+        binding.btnGetStarted.setOnClickListener {
+            getSharedPreferences("prefs", MODE_PRIVATE)
+                .edit().putBoolean("onboarding_done", true).apply()
+            startActivity(Intent(this, LoginActivity::class.java))
+            finish()
+        }
+    }
+
+    private fun updateButtons(position: Int, count: Int) {
+        val isLast = position == count - 1
+        binding.btnNext.visibility = if (isLast) View.GONE else View.VISIBLE
+        binding.btnGetStarted.visibility = if (isLast) View.VISIBLE else View.GONE
+    }
+}

app/src/main/java/sh/sar/basedbank/ui/onboarding/OnboardingFragment.kt

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+package sh.sar.basedbank.ui.onboarding
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.core.os.bundleOf
+import androidx.fragment.app.Fragment
+import sh.sar.basedbank.databinding.FragmentOnboardingSlideBinding
+
+class OnboardingFragment : Fragment() {
+
+    private var _binding: FragmentOnboardingSlideBinding? = null
+    private val binding get() = _binding!!
+
+    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View {
+        _binding = FragmentOnboardingSlideBinding.inflate(inflater, container, false)
+        return binding.root
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        val title = requireArguments().getString(ARG_TITLE, "")
+        val desc = requireArguments().getString(ARG_DESC, "")
+        val icon = requireArguments().getInt(ARG_ICON, 0)
+        val isFirst = requireArguments().getBoolean(ARG_IS_FIRST, false)
+
+        binding.icon.setImageResource(icon)
+        binding.title.text = title
+        binding.description.text = desc
+
+        // On the first slide, show the two placeholder cards for upcoming banks
+        binding.placeholderCards.visibility = if (isFirst) View.VISIBLE else View.GONE
+    }
+
+    override fun onDestroyView() {
+        super.onDestroyView()
+        _binding = null
+    }
+
+    companion object {
+        private const val ARG_TITLE = "title"
+        private const val ARG_DESC = "desc"
+        private const val ARG_ICON = "icon"
+        private const val ARG_IS_FIRST = "is_first"
+
+        fun newInstance(slide: OnboardingSlide) = OnboardingFragment().apply {
+            arguments = bundleOf(
+                ARG_TITLE to slide.title,
+                ARG_DESC to slide.description,
+                ARG_ICON to slide.iconRes,
+                ARG_IS_FIRST to slide.isFirst
+            )
+        }
+    }
+}

app/src/main/java/sh/sar/basedbank/ui/onboarding/OnboardingPagerAdapter.kt

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+package sh.sar.basedbank.ui.onboarding
+
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.FragmentActivity
+import androidx.viewpager2.adapter.FragmentStateAdapter
+import sh.sar.basedbank.R
+
+class OnboardingPagerAdapter(activity: FragmentActivity) : FragmentStateAdapter(activity) {
+
+    private val slides = listOf(
+        OnboardingSlide(
+            title = activity.getString(R.string.onboarding_title_1),
+            description = activity.getString(R.string.onboarding_desc_1),
+            iconRes = R.drawable.ic_launcher_foreground,
+            isFirst = true
+        ),
+        OnboardingSlide(
+            title = activity.getString(R.string.onboarding_title_2),
+            description = activity.getString(R.string.onboarding_desc_2),
+            iconRes = R.drawable.ic_launcher_foreground,
+            isFirst = false
+        ),
+        OnboardingSlide(
+            title = activity.getString(R.string.onboarding_title_3),
+            description = activity.getString(R.string.onboarding_desc_3),
+            iconRes = R.drawable.ic_launcher_foreground,
+            isFirst = false
+        )
+    )
+
+    override fun getItemCount() = slides.size
+
+    override fun createFragment(position: Int): Fragment =
+        OnboardingFragment.newInstance(slides[position])
+}
+
+data class OnboardingSlide(
+    val title: String,
+    val description: String,
+    val iconRes: Int,
+    val isFirst: Boolean
+)