Add battery optimizations info

app/src/main/java/io/timelimit/android/ui/manage/device/manage/ManageDeviceFragment.kt

@@ -30,10 +30,8 @@ import android.widget.ArrayAdapter
 import android.widget.Toast
 import androidx.fragment.app.Fragment
 import androidx.lifecycle.LiveData
-import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.Observer
 import androidx.navigation.Navigation
-import com.google.android.material.snackbar.Snackbar
 import io.timelimit.android.R
 import io.timelimit.android.data.model.Device
 import io.timelimit.android.databinding.FragmentManageDeviceBinding
@@ -46,7 +44,6 @@ import io.timelimit.android.livedata.switchMap
 import io.timelimit.android.logic.AppLogic
 import io.timelimit.android.logic.DefaultAppLogic
 import io.timelimit.android.sync.actions.SetDeviceUserAction
-import io.timelimit.android.sync.actions.UpdateDeviceNameAction
 import io.timelimit.android.ui.main.ActivityViewModel
 import io.timelimit.android.ui.main.ActivityViewModelHolder
 import io.timelimit.android.ui.main.AuthenticationFab
@@ -267,6 +264,12 @@ class ManageDeviceFragment : Fragment(), FragmentWithCustomTitle {
                 user = userEntry
         )
 
+        ManageDeviceTroubleshooting.bind(
+                view = binding.troubleshootingView,
+                userEntry = userEntry,
+                lifecycleOwner = this
+        )
+
         return binding.root
     }
 

app/src/main/java/io/timelimit/android/ui/manage/device/manage/ManageDeviceTroubleshooting.kt

@@ -0,0 +1,41 @@
+/*
+ * Open TimeLimit Copyright <C> 2019 Jonas Lochmann
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation version 3 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+package io.timelimit.android.ui.manage.device.manage
+
+import android.text.method.LinkMovementMethod
+import androidx.lifecycle.LifecycleOwner
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.Observer
+import io.timelimit.android.data.model.User
+import io.timelimit.android.data.model.UserType
+import io.timelimit.android.databinding.ManageDeviceTroubleshootingViewBinding
+
+object ManageDeviceTroubleshooting {
+    fun bind(
+            view: ManageDeviceTroubleshootingViewBinding,
+            userEntry: LiveData<User?>,
+            lifecycleOwner: LifecycleOwner
+    ) {
+        view.bateryOptimizationsText.movementMethod = LinkMovementMethod.getInstance()
+
+        userEntry.observe(lifecycleOwner, Observer {
+            val isChild = it?.type == UserType.Child
+
+            view.showBatteryOptimizations = isChild
+            view.showNoChildUser = !isChild
+        })
+    }
+}