feat(android): support custom local notification icon

android/capacitor/src/main/java/com/getcapacitor/plugin/notification/LocalNotification.java

@@ -3,6 +3,7 @@
 import android.content.Context;
 import android.util.Log;
 
+import com.getcapacitor.Config;
 import com.getcapacitor.JSArray;
 import com.getcapacitor.JSObject;
 import com.getcapacitor.LogUtils;
@@ -21,10 +22,15 @@
  */
 public class LocalNotification {
 
+  private static final String CONFIG_KEY_PREFIX = "plugins.LocalNotifications.";
+  private static final int RESOURCE_ID_ZERO_VALUE = 0;
+  private static int defaultSmallIconID = RESOURCE_ID_ZERO_VALUE;
+
   private String title;
   private String body;
   private Integer id;
   private String sound;
+  private String smallIcon;
   private String actionTypeId;
   private JSObject extra;
   private List<LocalNotificationAttachment> attachments;
@@ -65,6 +71,7 @@ public void setSound(String sound) {
     this.sound = sound;
   }
 
+  public void setSmallIcon(String smallIcon) { this.smallIcon = getResourceBaseName(smallIcon); }
 
   public List<LocalNotificationAttachment> getAttachments() {
     return attachments;
@@ -131,6 +138,7 @@ public static List<LocalNotification> buildNotificationList(PluginCall call) {
       activeLocalNotification.setActionTypeId(notification.getString("actionTypeId"));
       activeLocalNotification.setSound(notification.getString("sound"));
       activeLocalNotification.setTitle(notification.getString("title"));
+      activeLocalNotification.setSmallIcon(notification.getString("smallIcon"));
       activeLocalNotification.setAttachments(LocalNotificationAttachment.getAttachments(notification));
       try {
         activeLocalNotification.setSchedule(new LocalNotificationSchedule(notification));
@@ -178,8 +186,35 @@ public static JSObject buildLocalNotificationPendingList(List<String> ids) {
   }
 
   public int getSmallIcon(Context context) {
-    // TODO support custom icons
-    int resId = android.R.drawable.ic_dialog_info;
+    int resId = RESOURCE_ID_ZERO_VALUE;
+
+    if(smallIcon != null){
+      resId = getResourceID(context, smallIcon,"drawable");
+    }
+
+    if(resId == RESOURCE_ID_ZERO_VALUE){
+      resId = getDefaultSmallIcon(context);
+    }
+
+    return resId;
+  }
+
+  private static int getDefaultSmallIcon(Context context){
+    if(defaultSmallIconID != RESOURCE_ID_ZERO_VALUE) return defaultSmallIconID;
+
+    int resId = RESOURCE_ID_ZERO_VALUE;
+    String smallIconConfigResourceName = Config.getString(CONFIG_KEY_PREFIX + "smallIcon");
+    smallIconConfigResourceName = getResourceBaseName(smallIconConfigResourceName);
+
+    if(smallIconConfigResourceName != null){
+      resId = getResourceID(context, smallIconConfigResourceName, "drawable");
+    }
+
+    if(resId == RESOURCE_ID_ZERO_VALUE){
+      resId = android.R.drawable.ic_dialog_info;
+    }
+
+    defaultSmallIconID = resId;
     return resId;
   }
 
@@ -197,6 +232,7 @@ public String toString() {
             ", body='" + body + '\'' +
             ", id=" + id +
             ", sound='" + sound + '\'' +
+            ", smallIcon='" + smallIcon + '\'' +
             ", actionTypeId='" + actionTypeId + '\'' +
             ", extra=" + extra +
             ", attachments=" + attachments +
@@ -215,6 +251,7 @@ public boolean equals(Object o) {
     if (body != null ? !body.equals(that.body) : that.body != null) return false;
     if (id != null ? !id.equals(that.id) : that.id != null) return false;
     if (sound != null ? !sound.equals(that.sound) : that.sound != null) return false;
+    if (smallIcon != null ? !smallIcon.equals(that.smallIcon) : that.smallIcon != null) return false;
     if (actionTypeId != null ? !actionTypeId.equals(that.actionTypeId) : that.actionTypeId != null)
       return false;
     if (extra != null ? !extra.equals(that.extra) : that.extra != null) return false;
@@ -229,6 +266,7 @@ public int hashCode() {
     result = 31 * result + (body != null ? body.hashCode() : 0);
     result = 31 * result + (id != null ? id.hashCode() : 0);
     result = 31 * result + (sound != null ? sound.hashCode() : 0);
+    result = 31 * result + (smallIcon != null ? smallIcon.hashCode() : 0);
     result = 31 * result + (actionTypeId != null ? actionTypeId.hashCode() : 0);
     result = 31 * result + (extra != null ? extra.hashCode() : 0);
     result = 31 * result + (attachments != null ? attachments.hashCode() : 0);
@@ -253,4 +291,22 @@ public String getSource() {
   public void setSource(String source) {
     this.source = source;
   }
+
+  private static int getResourceID(Context context, String resourceName, String dir){
+    return context.getResources().getIdentifier(resourceName, dir, context.getPackageName());
+  }
+
+  private static String getResourceBaseName (String resPath) {
+    if (resPath == null) return null;
+
+    if (resPath.contains("/")) {
+      return resPath.substring(resPath.lastIndexOf('/') + 1);
+    }
+
+    if (resPath.contains(".")) {
+      return resPath.substring(0, resPath.lastIndexOf('.'));
+    }
+
+    return resPath;
+  }
 }

core/src/core-plugin-definitions.ts

@@ -945,6 +945,11 @@ export interface LocalNotification {
   id: number;
   schedule?: LocalNotificationSchedule;
   sound?: string;
+  /**
+   * Android-only: set a custom statusbar icon.
+   * If set, it overrides default icon from capacitor.config.json
+   */
+  smallIcon?: string;
   attachments?: LocalNotificationAttachment[];
   actionTypeId?: string;
   extra?: any;

example/capacitor.config.json

@@ -6,6 +6,9 @@
   "plugins": {
     "SplashScreen": {
       "launchShowDuration": 12345
+    },
+    "LocalNotifications": {
+      "smallIcon": "ic_stat_icon_config_sample"
     }
   }
-}
+}

example/src/pages/local-notifications/local-notifications.html

@@ -19,7 +19,10 @@
   </button>
   <br/><br/>
   <button (click)="scheduleNow()" ion-button>
-    Schedule Now
+    Schedule Now - Icon from config (or default)
+  </button>
+  <button (click)="scheduleNowWithIcon()" ion-button>
+    Schedule Now - Icon parameter
   </button>
   <br/><br/>
   <button (click)="scheduleOnce()" ion-button>

example/src/pages/local-notifications/local-notifications.ts

@@ -86,6 +86,27 @@ export class LocalNotificationsPage {
     });
   }
 
+  async scheduleNowWithIcon() {
+    this.notifs = await Plugins.LocalNotifications.schedule({
+      notifications: [{
+        title: 'Get 10% off!',
+        body: 'Swipe now to learn more',
+        // Android-only: set a custom statusbar icon 
+        smallIcon: "res://ic_stat_icon_sample",
+        // Get random id to test cancel
+        id: Math.floor(Math.random()*10),
+        sound: 'beep.aiff',
+        attachments: [
+          { id: 'face', url: 'res://public/assets/ionitron.png' }
+        ],
+        actionTypeId: 'OPEN_PRODUCT',
+        extra: {
+          productId: 'PRODUCT-1'
+        }
+      }]
+    });
+  }
+
   async scheduleOnce() {
     var now = new Date();
     this.notifs = await Plugins.LocalNotifications.schedule({