use nullable context

app/src/main/java/com/lagradost/cloudstream3/ui/result/ResultFragmentPhone.kt

@@ -33,7 +33,6 @@ import com.google.android.gms.cast.framework.CastState
 import com.google.android.material.bottomsheet.BottomSheetDialog
 import com.lagradost.cloudstream3.APIHolder
 import com.lagradost.cloudstream3.APIHolder.updateHasTrailers
-import com.lagradost.cloudstream3.CommonActivity
 import com.lagradost.cloudstream3.CommonActivity.showToast
 import com.lagradost.cloudstream3.DubStatus
 import com.lagradost.cloudstream3.LoadResponse
@@ -448,7 +447,7 @@ open class ResultFragmentPhone : FullScreenPlayer() {
 
                         val name = (viewModel.page.value as? Resource.Success)?.value?.title
                             ?: txt(R.string.no_data).asStringNull(context) ?: ""
-                        CommonActivity.showToast(txt(message, name), Toast.LENGTH_SHORT)
+                        showToast(txt(message, name), Toast.LENGTH_SHORT)
                 }
             }
             resultFavorite.setOnClickListener {
@@ -463,7 +462,7 @@ open class ResultFragmentPhone : FullScreenPlayer() {
 
                     val name = (viewModel.page.value as? Resource.Success)?.value?.title
                         ?: txt(R.string.no_data).asStringNull(context) ?: ""
-                    CommonActivity.showToast(txt(message, name), Toast.LENGTH_SHORT)
+                    showToast(txt(message, name), Toast.LENGTH_SHORT)
                 }
             }
             mediaRouteButton.apply {
@@ -471,7 +470,7 @@ open class ResultFragmentPhone : FullScreenPlayer() {
                 alpha = if (chromecastSupport) 1f else 0.3f
                 if (!chromecastSupport) {
                     setOnClickListener {
-                        CommonActivity.showToast(
+                        showToast(
                             R.string.no_chromecast_support_toast,
                             Toast.LENGTH_LONG
                         )
@@ -646,7 +645,8 @@ open class ResultFragmentPhone : FullScreenPlayer() {
                         ),
                         null
                     ) { click ->
-                        openBatteryOptimizationSettings(requireContext())
+                        runCatching { context ?: requireContext() }.getOrNull()
+                            ?.let { openBatteryOptimizationSettings(it) }
 
                         when (click.action) {
                             DOWNLOAD_ACTION_DOWNLOAD -> {

app/src/main/java/com/lagradost/cloudstream3/ui/settings/SettingsGeneral.kt

@@ -32,6 +32,7 @@ import com.lagradost.cloudstream3.ui.settings.SettingsFragment.Companion.setPadd
 import com.lagradost.cloudstream3.ui.settings.SettingsFragment.Companion.setToolBarScrollFlags
 import com.lagradost.cloudstream3.ui.settings.SettingsFragment.Companion.setUpToolbar
 import com.lagradost.cloudstream3.utils.BatteryOptimizationChecker.intentOpenAppInfo
+import com.lagradost.cloudstream3.utils.BatteryOptimizationChecker.isAppRestricted
 import com.lagradost.cloudstream3.utils.SingleSelectionHelper.showBottomDialog
 import com.lagradost.cloudstream3.utils.SingleSelectionHelper.showDialog
 import com.lagradost.cloudstream3.utils.SingleSelectionHelper.showMultiDialog
@@ -204,8 +205,14 @@ class SettingsGeneral : PreferenceFragmentCompat() {
         }
 
         getPref(R.string.battery_optimisation_key)?.setOnPreferenceClickListener {
-            intentOpenAppInfo(requireContext())
+            val ctx = context ?: requireContext()
-            return@setOnPreferenceClickListener true
+
+            if (isAppRestricted(ctx)) {
+                intentOpenAppInfo(ctx)
+            } else {
+                showToast(R.string.app_unrestricted_toast)
+            }
+            true
         }
 
         fun showAdd() {

app/src/main/java/com/lagradost/cloudstream3/utils/PowerManagerAPI.kt

@@ -11,6 +11,7 @@ import android.util.Log
 import androidx.appcompat.app.AlertDialog
 import androidx.preference.PreferenceManager
 import com.lagradost.cloudstream3.BuildConfig
+import com.lagradost.cloudstream3.CommonActivity.showToast
 import com.lagradost.cloudstream3.R
 
 const val packageName = BuildConfig.APPLICATION_ID
@@ -18,7 +19,7 @@ const val TAG = "PowerManagerAPI"
 
 object BatteryOptimizationChecker {
 
-    private fun isAppRestricted(context: Context?): Boolean {
+    fun isAppRestricted(context: Context?): Boolean {
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && context != null) {
             val powerManager = context.getSystemService(Context.POWER_SERVICE) as PowerManager
             return !powerManager.isIgnoringBatteryOptimizations(context.packageName)
@@ -72,7 +73,8 @@ object BatteryOptimizationChecker {
                 .setData(Uri.fromParts("package", packageName, null))
             context.startActivity(intent, Bundle())
         } catch (t: Throwable) {
-            Log.e(TAG, "Unable to invoke intent for App info.")
+            Log.e(TAG, "Unable to invoke Intent for - CS3/App Info")
+            showToast(R.string.app_info_intent_error)
         }
     }
 }

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

@@ -654,7 +654,8 @@
     <string name="battery_dialog_title">Disable Battery optimization</string>
     <string name="battery_dialog_message">To ensure proper downloads and notifications, please set battery optimization for CloudStream app to Unrestricted. You can change this later from General Settings.</string>
     <string name="battery_optimisation_key" translatable="false">battery_optimisation</string>
-    <string name="app_unrestricted_toast">App is already set to unrestricted</string>
+    <string name="app_unrestricted_toast">App battery usage is already set to unrestricted</string>
+    <string name="app_info_intent_error">Unable to open CloudStream\'s App info.</string>
     <string name="update_notification_downloading">Downloading app update…</string>
     <string name="update_notification_installing">Installing app update…</string>
     <string name="update_notification_failed">Could not install the new version of the app</string>