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app/src/main/java/com/ckkj/water/utils/manager/ActivityManager.java

@@ -82,4 +82,39 @@ public class ActivityManager {
             }
         }
     }
+
+
+    /**
+     * 关闭指定tag的所有Activity
+     *
+     * @param tag 比如 add_device_flag
+     */
+    public static void removeActivityByTag(String tag)
+    {
+        if(activitys == null || activitys.isEmpty()){
+            return;
+        }
+
+        //避免遍历时ConcurrentModificationException
+        Map<String, Activity> tempMap =
+                new HashMap<>(activitys);
+
+        for (Map.Entry<String, Activity> entry : tempMap.entrySet()) {
+
+            String key = entry.getKey();
+            Activity activity = entry.getValue();
+
+            if (key != null && key.contains(tag)) {
+
+                if (activity != null &&
+                        !activity.isFinishing() &&
+                        !activity.isDestroyed()) {
+
+                    activity.finish();
+                }
+
+                activitys.remove(key);
+            }
+        }
+    }
 }