[#1094] Add message under Doc and PP buttons

* [#1094] Add message under Doc and PP buttons

- Closes #1094
- Shows Toast UI message with Not implemented yet test after the buttons hit

* Changelog update

CHANGELOG.md

@@ -9,6 +9,9 @@ directly impact users rather than highlighting other key architectural updates.*
 
 ## [Unreleased]
 
+### Added
+- Unfinished features show a "Not implemented yet" message after accessing in the app UI 
+
 ### Removed
 - Home screen side menu navigation was removed in favor of the Settings screen
 

ui-lib/src/main/java/co/electriccoin/zcash/ui/Navigation.kt

@@ -1,7 +1,9 @@
 package co.electriccoin.zcash.ui
 
 import android.annotation.SuppressLint
+import android.widget.Toast
 import androidx.compose.runtime.Composable
+import androidx.compose.ui.platform.LocalContext
 import androidx.navigation.NavHostController
 import androidx.navigation.NavOptionsBuilder
 import androidx.navigation.compose.NavHost
@@ -43,6 +45,7 @@ import co.electriccoin.zcash.ui.screen.update.WrapCheckForUpdate
 @Composable
 @Suppress("LongMethod")
 internal fun MainActivity.Navigation() {
+    val context = LocalContext.current
     val navController = rememberNavController().also {
         // This suppress is necessary, as this is how we set up the nav controller for tests.
         @SuppressLint("RestrictedApi")
@@ -80,6 +83,7 @@ internal fun MainActivity.Navigation() {
                 goDocumentation = {
                     // TODO [#1084]: Documentation screen
                     // TODO [#1084]: https://github.com/Electric-Coin-Company/zashi-android/issues/1084
+                    Toast.makeText(context, context.getString(R.string.not_implemented_yet), Toast.LENGTH_SHORT).show()
                 },
                 goExportPrivateData = {
                     navController.navigateJustOnce(EXPORT_PRIVATE_DATA)
@@ -90,6 +94,7 @@ internal fun MainActivity.Navigation() {
                 goPrivacyPolicy = {
                     // TODO [#1083]: Privacy Policy screen
                     // TODO [#1083]: https://github.com/Electric-Coin-Company/zashi-android/issues/1083
+                    Toast.makeText(context, context.getString(R.string.not_implemented_yet), Toast.LENGTH_SHORT).show()
                 },
                 goSeedRecovery = {
                     navController.navigateJustOnce(SEED_RECOVERY)

ui-lib/src/main/res/ui/common/values/strings.xml

@@ -2,4 +2,5 @@
     <string name="fiat_currency_conversion_rate_unavailable">Unavailable</string>
     <string name="empty_char">-</string>
     <string name="zcash_logo_content_description">Zcash logo</string>
+    <string name="not_implemented_yet">Not implemented yet.</string>
 </resources>