Methods for get, set & update the flags implemented

Author: nklhtv

android/src/main/java/com/nh/system/ui/flags/SystemUiFlags.java

@@ -1,9 +1,13 @@
 package com.nh.system.ui.flags;
 
+import android.app.Activity;
 import android.view.View;
 
+import com.facebook.react.bridge.Callback;
 import com.facebook.react.bridge.ReactApplicationContext;
 import com.facebook.react.bridge.ReactContextBaseJavaModule;
+import com.facebook.react.bridge.ReactMethod;
+import com.facebook.react.bridge.UiThreadUtil;
 import com.facebook.react.common.MapBuilder;
 
 import java.util.Map;
@@ -33,4 +37,46 @@ public Map<String, Object> getConstants() {
 
         return constants;
     }
+
+    @ReactMethod
+    public void getCurrentSystemUiFlags(final Callback cb) {
+        UiThreadUtil.runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                Activity currentActivity = getCurrentActivity();
+                if (currentActivity != null) {
+                    int currentSystemUiFlags = currentActivity.getWindow().getDecorView().getSystemUiVisibility();
+                    cb.invoke(currentSystemUiFlags);
+                }
+            }
+        });
+    }
+
+    @ReactMethod
+    public void setSystemUiFlags(final int systemUiFlags) {
+        UiThreadUtil.runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                Activity currentActivity = getCurrentActivity();
+                if (currentActivity != null) {
+                    currentActivity.getWindow().getDecorView().setSystemUiVisibility(systemUiFlags);
+                }
+            }
+        });
+    }
+
+    @ReactMethod
+    public void updateSystemUiFlags(final int systemUiFlags) {
+        UiThreadUtil.runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                Activity currentActivity = getCurrentActivity();
+                if (currentActivity != null) {
+                    int currentSystemUiFlags = currentActivity.getWindow().getDecorView().getSystemUiVisibility();
+                    int newSystemUiFlags = currentSystemUiFlags | systemUiFlags;
+                    currentActivity.getWindow().getDecorView().setSystemUiVisibility(newSystemUiFlags);
+                }
+            }
+        });
+    }
 }