Disable screenshots in [React Native] Disable screenshots in [React Native]

Disable screenshots in [React Native]

Android developers often face the challenge of preventing manual screenshots in their applications, understanding that it’s impossible to achieve a 100% foolproof solution. However, a common approach involves setting LayoutParams.FLAG_SECURE in Java to deter users from taking screenshots manually.

The Initial Attempt

One developer shared their experience on Stack Overflow, attempting to implement this solution in their Android application. They initially added the code to the MainApplication file but encountered errors with getWindow().

        package com.testapp;
        import android.app.Activity;
        import com.reactnativenavigation.NavigationApplication;
        // ... other imports

        public class MainApplication extends NavigationApplication {
          // ... methods

          @Override
          public void onCreate() {
            super.onCreate();
            // ... other initialization
          }
        }
      

However, moving the code snippet to the MainActivity file resolved the issue, but manual screenshots were still possible.

        package com.testapp;
        import android.widget.ImageView;
        import com.reactnativenavigation.controllers.SplashActivity;
        import android.os.Bundle;
        import android.view.WindowManager.LayoutParams;
        // ... other imports

        public class MainActivity extends SplashActivity {
          @Override
          public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            getWindow().setFlags(LayoutParams.FLAG_SECURE, LayoutParams.FLAG_SECURE);
          }
        }
      

The Solution

Another developer shared a simplified and effective solution on Stack Overflow. By extending the AppCompatActivity class and adding the code directly in the onCreate method, the issue was resolved successfully.

        public class MainActivity extends AppCompatActivity {

          @Override
          protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            getWindow().setFlags(WindowManager.LayoutParams.FLAG_SECURE,
              WindowManager.LayoutParams.FLAG_SECURE);
            setContentView(R.layout.activity_main);
          }
        }
      

This concise implementation ensures that the FLAG_SECURE flag is set appropriately, preventing manual screenshots in the Android application.

Conclusion

Addressing challenges in Android development, such as preventing manual screenshots, requires a meticulous approach. Developers can benefit from shared experiences and solutions on platforms like Stack Overflow, where the community collaborates to overcome obstacles. In this case, a straightforward implementation in the MainActivity resolved the issue, providing a reliable way to discourage manual screenshots in Android apps.