change ui flags on UI thread

Author: nklhtv

android/src/main/java/com/stellarscript/system/ui/flags/SystemUiFlagsModule.java

@@ -8,6 +8,7 @@
 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;
@@ -56,29 +57,44 @@ public Map<String, Object> getConstants() {
 
     @ReactMethod
     public void getSystemUiFlags(final Callback callback) {
-        final Activity currentActivity = SystemUiFlagsModule.this.getCurrentActivity();
-        if (currentActivity != null) {
-            final int flags = currentActivity.getWindow().getDecorView().getSystemUiVisibility();
-            callback.invoke(flags);
-        }
+        UiThreadUtil.runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                final Activity currentActivity = SystemUiFlagsModule.this.getCurrentActivity();
+                if (currentActivity != null) {
+                    final int flags = currentActivity.getWindow().getDecorView().getSystemUiVisibility();
+                    callback.invoke(flags);
+                }
+            }
+        });
     }
 
     @ReactMethod
     public void setSystemUiFlags(final int flags) {
-        final Activity currentActivity = SystemUiFlagsModule.this.getCurrentActivity();
-        if (currentActivity != null) {
-            currentActivity.getWindow().getDecorView().setSystemUiVisibility(flags);
-        }
+        UiThreadUtil.runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                final Activity currentActivity = SystemUiFlagsModule.this.getCurrentActivity();
+                if (currentActivity != null) {
+                    currentActivity.getWindow().getDecorView().setSystemUiVisibility(flags);
+                }
+            }
+        });
     }
 
     @ReactMethod
     public void updateSystemUiFlags(final int flags) {
-        final Activity currentActivity = SystemUiFlagsModule.this.getCurrentActivity();
-        if (currentActivity != null) {
-            final int currentFlags = currentActivity.getWindow().getDecorView().getSystemUiVisibility();
-            final int newFlags = currentFlags | flags;
-            currentActivity.getWindow().getDecorView().setSystemUiVisibility(newFlags);
-        }
+        UiThreadUtil.runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                final Activity currentActivity = SystemUiFlagsModule.this.getCurrentActivity();
+                if (currentActivity != null) {
+                    final int currentFlags = currentActivity.getWindow().getDecorView().getSystemUiVisibility();
+                    final int newFlags = currentFlags | flags;
+                    currentActivity.getWindow().getDecorView().setSystemUiVisibility(newFlags);
+                }
+            }
+        });
     }
 
 }