Updated on 2026-08-14

app/src/main/java/com/tangem/ui/fragment/BaseFragment.kt

@@ -0,0 +1,96 @@
+package com.tangem.ui.fragment
+
+import android.os.Bundle
+import android.util.Log
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.annotation.IdRes
+import androidx.fragment.app.Fragment
+import androidx.navigation.fragment.NavHostFragment.findNavController
+import com.tangem.ui.activity.MainActivity
+import com.tangem.ui.navigation.NavigationResult
+import com.tangem.ui.navigation.NavigationResultListener
+
+abstract class BaseFragment : Fragment() {
+
+    protected val requestCode: String
+        get() = arguments?.getString(ARGUMENT_NAVIGATION_REQUEST_CODE, REQUEST_CODE_NOT_SET)
+                ?: REQUEST_CODE_NOT_SET
+    protected val navigatedBack: Boolean
+        get() = (activity as? MainActivity)?.viewModel?.navigationResult != null
+
+    protected abstract val layoutId: Int
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        Log.d("LIFECYCLE", "onCreate: ${this::class.java.simpleName}")
+    }
+
+    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
+        return inflater.inflate(layoutId, container, false)
+    }
+
+    override fun onStart() {
+        super.onStart()
+        Log.d("LIFECYCLE", "onStart: ${this::class.java.simpleName}")
+        if (this is NavigationResultListener) {
+            val navigationResult = (activity as? MainActivity)?.viewModel?.navigationResult
+            navigationResult?.run {
+                onNavigationResult(this.requestCode, this.resultCode, this.data)
+                (activity as? MainActivity)?.viewModel?.navigationResult = null
+            }
+        }
+    }
+
+    override fun onPause() {
+        super.onPause()
+        Log.d("LIFECYCLE", "onPause: ${this::class.java.simpleName}")
+    }
+
+    override fun onStop() {
+        super.onStop()
+        Log.d("LIFECYCLE", "onStop: ${this::class.java.simpleName}")
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        Log.d("LIFECYCLE", "onDestroy: ${this::class.java.simpleName}")
+    }
+
+    protected fun navigateUp(@IdRes destination: Int = DESTINATION_NOT_SET): Boolean {
+        return if (destination == DESTINATION_NOT_SET) {
+            findNavController(this).popBackStack()
+        } else {
+            findNavController(this).popBackStack(destination, true)
+        }
+    }
+
+    protected fun navigateForResult(requestCode: String, @IdRes destination: Int, data: Bundle? = null) {
+        val argumentsWithRequestCode = (data ?: Bundle()).apply {
+            putString(ARGUMENT_NAVIGATION_REQUEST_CODE, requestCode)
+        }
+        navigateToDestination(destination, argumentsWithRequestCode)
+    }
+
+    protected fun navigateToDestination(@IdRes destination: Int, data: Bundle? = null) {
+        try {
+            findNavController(this).navigate(destination, data)
+        } catch (e: IllegalArgumentException) {
+            Log.w(this::class.java.simpleName, e.message)
+        }
+    }
+
+    protected fun navigateBackWithResult(resultCode: Int, data: Bundle? = null,
+                                         @IdRes destination: Int = DESTINATION_NOT_SET): Boolean {
+        (requireActivity() as MainActivity).viewModel.navigationResult =
+                NavigationResult(requestCode, resultCode, data)
+        return navigateUp(destination)
+    }
+
+    companion object {
+        private const val ARGUMENT_NAVIGATION_REQUEST_CODE = "NAVIGATION_REQUEST_CODE"
+        private const val DESTINATION_NOT_SET = -1
+        private const val REQUEST_CODE_NOT_SET = "REQUEST_CODE_NOT_SET"
+    }
+}