Merge pull request #164 from Tong-Huang/add-notification-feature

Add notification feature

CONTRIBUTING.md

@@ -37,7 +37,7 @@ We really appreciate contributions via GitHub pull requests. To contribute take
  * Apply your changes
  * Verify your changes and fix potential warnings/ errors:
    * Check formatting: `flutter format .`
-   * Run static analyses: `flutter analyzes`
+   * Run static analyses: `flutter analyze`
    * Run unit-tests: `flutter test`
  * Commit your changes: `git commit -am "<your informative commit message>"`
  * Push changes to your fork: `git push origin <name_of_your_branch>`

README.md

@@ -169,6 +169,10 @@ enum PermissionGroup {
   /// Android: None
   /// iOS: MPMediaLibrary
   mediaLibrary
+
+  /// Android: Check notification enable
+  /// iOS: Check and request notification permission
+  notification
 }
 ```
 

android/src/main/java/com/baseflow/permissionhandler/PermissionHandlerPlugin.java

@@ -19,6 +19,7 @@ import android.telephony.TelephonyManager;
 import android.text.TextUtils;
 import android.util.Log;
 
+import androidx.core.app.NotificationManagerCompat;
 import io.flutter.plugin.common.PluginRegistry.ActivityResultListener;
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
@@ -60,7 +61,8 @@ public class PermissionHandlerPlugin implements MethodCallHandler {
   private static final int PERMISSION_GROUP_SPEECH = 13;
   private static final int PERMISSION_GROUP_STORAGE = 14;
   private static final int PERMISSION_GROUP_IGNORE_BATTERY_OPTIMIZATIONS = 15;
-  private static final int PERMISSION_GROUP_UNKNOWN = 16;
+  private static final int PERMISSION_GROUP_NOTIFICATION = 16;
+  private static final int PERMISSION_GROUP_UNKNOWN = 17;
 
   private PermissionHandlerPlugin(Registrar mRegistrar) {
     this.mRegistrar = mRegistrar;
@@ -84,6 +86,7 @@ public class PermissionHandlerPlugin implements MethodCallHandler {
       PERMISSION_GROUP_SPEECH,
       PERMISSION_GROUP_STORAGE,
       PERMISSION_GROUP_IGNORE_BATTERY_OPTIMIZATIONS,
+      PERMISSION_GROUP_NOTIFICATION,
       PERMISSION_GROUP_UNKNOWN,
   })
   private @interface PermissionGroup {
@@ -250,6 +253,16 @@ public class PermissionHandlerPlugin implements MethodCallHandler {
 
   @PermissionStatus
   private int checkPermissionStatus(@PermissionGroup int permission) {
+    final Context context = mRegistrar.activity() == null ? mRegistrar.activeContext() : mRegistrar.activity();
+    if (context == null) {
+      Log.d(LOG_TAG, "Unable to detect current Activity or App Context.");
+      return PERMISSION_STATUS_UNKNOWN;
+    }
+
+    if (permission == PERMISSION_GROUP_NOTIFICATION) {
+      return checkNotificationPermissionStatus(context);
+    }
+
     final List<String> names = getManifestNames(permission);
 
     if (names == null) {
@@ -264,12 +277,6 @@ public class PermissionHandlerPlugin implements MethodCallHandler {
       return PERMISSION_STATUS_UNKNOWN;
     }
 
-    final Context context = mRegistrar.activity() == null ? mRegistrar.activeContext() : mRegistrar.activity();
-    if (context == null) {
-      Log.d(LOG_TAG, "Unable to detect current Activity or App Context.");
-      return PERMISSION_STATUS_UNKNOWN;
-    }
-
     final boolean targetsMOrHigher = context.getApplicationInfo().targetSdkVersion >= VERSION_CODES.M;
 
     for (String name : names) {
@@ -655,6 +662,7 @@ public class PermissionHandlerPlugin implements MethodCallHandler {
           permissionNames.add(Manifest.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS);
         break;
 
+      case PERMISSION_GROUP_NOTIFICATION:
       case PERMISSION_GROUP_MEDIA_LIBRARY:
       case PERMISSION_GROUP_PHOTOS:
       case PERMISSION_GROUP_REMINDERS:
@@ -726,4 +734,13 @@ public class PermissionHandlerPlugin implements MethodCallHandler {
       return !TextUtils.isEmpty(locationProviders);
     }
   }
+
+  private int checkNotificationPermissionStatus(Context context) {
+    NotificationManagerCompat manager = NotificationManagerCompat.from(context);
+    boolean isGranted = manager.areNotificationsEnabled();
+    if (isGranted) {
+      return PERMISSION_STATUS_GRANTED;
+    }
+    return PERMISSION_STATUS_DENIED;
+  }
 }

example/ios/Runner/Runner.entitlements

+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>com.apple.security.application-groups</key>
+	<array/>
+</dict>
+</plist>

ios/Classes/PermissionHandlerEnums.h

@@ -22,6 +22,7 @@ typedef NS_ENUM(int, PermissionGroup) {
     PermissionGroupSpeech,
     PermissionGroupStorage,
     PermissionGroupIgnoreBatteryOptimizations,
+    PermissionGroupNotification,
     PermissionGroupUnknown,
 };
 

ios/Classes/PermissionManager.h

@@ -20,6 +20,7 @@
 #import "SensorPermissionStrategy.h"
 #import "SpeechPermissionStrategy.h"
 #import "UnknownPermissionStrategy.h"
+#import "NotificationPermissionStrategy.h"
 #import "PermissionHandlerEnums.h"
 #import "Codec.h"
 

ios/Classes/PermissionManager.m

@@ -99,6 +99,8 @@
             return [SensorPermissionStrategy new];
             case PermissionGroupSpeech:
             return [SpeechPermissionStrategy new];
+            case PermissionGroupNotification:
+            return [NotificationPermissionStrategy new];
         default:
             return [UnknownPermissionStrategy new];
     }

ios/Classes/strategies/NotificationPermissionStrategy.h

+//
+//  NotificationPermissionStrategy.h
+//  permission_handler
+//
+//  Created by Tong on 2019/10/21.
+//
+
+#import <Foundation/Foundation.h>
+#import <UserNotifications/UserNotifications.h>
+#import "PermissionStrategy.h"
+
+@interface NotificationPermissionStrategy : NSObject <PermissionStrategy>
+
+@end

ios/Classes/strategies/NotificationPermissionStrategy.m

+//
+//  NotificationPermissionStrategy.m
+//  permission_handler
+//
+//  Created by Tong on 2019/10/21.
+//
+
+#import "NotificationPermissionStrategy.h"
+
+@implementation NotificationPermissionStrategy
+
+- (PermissionStatus)checkPermissionStatus:(PermissionGroup)permission {
+  return [NotificationPermissionStrategy permissionStatus];
+}
+
+- (ServiceStatus)checkServiceStatus:(PermissionGroup)permission {
+  return ServiceStatusNotApplicable;
+}
+
+- (void)requestPermission:(PermissionGroup)permission completionHandler:(PermissionStatusHandler)completionHandler {
+  PermissionStatus status = [self checkPermissionStatus:permission];
+  if (status != PermissionStatusUnknown) {
+    completionHandler(status);
+    return;
+  }
+  dispatch_async(dispatch_get_main_queue(), ^{
+    if(@available(iOS 10.0, *)) {
+      UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
+      UNAuthorizationOptions authorizationOptions = 0;
+      authorizationOptions += UNAuthorizationOptionSound;
+      authorizationOptions += UNAuthorizationOptionAlert;
+      authorizationOptions += UNAuthorizationOptionBadge;
+      [center requestAuthorizationWithOptions:(authorizationOptions) completionHandler:^(BOOL granted, NSError * _Nullable error) {
+        if (!granted || error != nil) {
+          completionHandler(PermissionStatusDenied);
+          return;
+        }
+      }];
+    } else {
+      UIUserNotificationType notificationTypes = 0;
+      notificationTypes |= UIUserNotificationTypeSound;
+      notificationTypes |= UIUserNotificationTypeAlert;
+      notificationTypes |= UIUserNotificationTypeBadge;
+      UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:notificationTypes categories:nil];
+      [[UIApplication sharedApplication] registerUserNotificationSettings:settings];
+    }
+    [[UIApplication sharedApplication] registerForRemoteNotifications];
+    completionHandler(PermissionStatusGranted);
+  });
+}
+
++ (PermissionStatus)permissionStatus {
+  __block PermissionStatus permissionStatus = PermissionStatusGranted;
+  if (@available(iOS 10 , *)) {
+    dispatch_semaphore_t sem = dispatch_semaphore_create(0);
+    [[UNUserNotificationCenter currentNotificationCenter] getNotificationSettingsWithCompletionHandler:^(UNNotificationSettings * _Nonnull settings) {
+      if (settings.authorizationStatus == UNAuthorizationStatusDenied) {
+        permissionStatus = PermissionStatusDenied;
+      } else if (settings.authorizationStatus == UNAuthorizationStatusNotDetermined) {
+        permissionStatus = PermissionStatusUnknown;
+      }
+      dispatch_semaphore_signal(sem);
+    }];
+    dispatch_semaphore_wait(sem, DISPATCH_TIME_FOREVER);
+  } else if (@available(iOS 8 , *)) {
+    UIUserNotificationSettings * setting = [[UIApplication sharedApplication] currentUserNotificationSettings];
+    if (setting.types == UIUserNotificationTypeNone) permissionStatus = PermissionStatusDenied;
+  } else {
+    UIRemoteNotificationType type = [[UIApplication sharedApplication] enabledRemoteNotificationTypes];
+    if (type == UIUserNotificationTypeNone) permissionStatus = PermissionStatusDenied;
+  }
+  return permissionStatus;
+}
+
+@end

lib/src/permission_enums.dart

@@ -149,8 +149,12 @@ class PermissionGroup {
   static const PermissionGroup ignoreBatteryOptimizations =
       PermissionGroup._(15);
 
+  /// Android: Notification
+  /// iOS: Notification
+  static const PermissionGroup notification = PermissionGroup._(16);
+
   /// The unknown permission only used for return type, never requested
-  static const PermissionGroup unknown = PermissionGroup._(16);
+  static const PermissionGroup unknown = PermissionGroup._(17);
 
   static const List<PermissionGroup> values = <PermissionGroup>[
     calendar,
@@ -169,6 +173,7 @@ class PermissionGroup {
     speech,
     storage,
     ignoreBatteryOptimizations,
+    notification,
     unknown,
   ];
 
@@ -189,6 +194,7 @@ class PermissionGroup {
     'speech',
     'storage',
     'ignoreBatteryOptimizations',
+    'notification',
     'unknown',
   ];