added button that brings you to app preferences

app/src/main/java/net/mezimmah/catflipscreen/MainActivity.kt

@@ -3,10 +3,13 @@ package net.mezimmah.catflipscreen
 import android.content.Intent
 import android.content.SharedPreferences
 import android.content.pm.PackageManager
+import android.net.Uri
 import android.os.Bundle
+import android.provider.Settings
 import androidx.appcompat.app.AppCompatActivity
 import androidx.core.app.ActivityCompat
 import androidx.core.content.ContextCompat
+import androidx.preference.Preference
 import androidx.preference.PreferenceFragmentCompat
 
 
@@ -46,6 +49,17 @@ class MainActivity : AppCompatActivity() {
         }
     }
     class SettingsFragment : PreferenceFragmentCompat(), SharedPreferences.OnSharedPreferenceChangeListener {
+
+        override fun onPreferenceTreeClick(preference: Preference): Boolean {
+            val intent = Intent(
+                Settings.ACTION_APPLICATION_DETAILS_SETTINGS,
+                Uri.fromParts("package", context?.packageName, null)
+            )
+            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
+            startActivity(intent)
+            return super.onPreferenceTreeClick(preference)
+        }
+
         override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
             setPreferencesFromResource(R.xml.root_preferences, rootKey)
         }

app/src/main/res/values/strings.xml

@@ -25,5 +25,6 @@
     <string name="wifi_signal_icon">Wifi Signal Icon</string>
     <string name="network_signal_icon">Network Signal Icon</string>
     <string name="battery_status_icon">Battery Status Icon</string>
+    <string name="appPermissionButton">appPermissionButton</string>
 
 </resources>

app/src/main/res/xml/root_preferences.xml

@@ -23,5 +23,8 @@
         app:enabled="true"
         app:title=""
         app:summary="In order for this app to work properly please enable all permissions in the app settings." />
+    <Preference
+        app:title="Go to App Permissions"
+        app:key="appPermissionButton"/>
 
 </PreferenceScreen>