Dynamically change app icon getting app close automatically in Android Module Dynamically change app icon getting app close automatically in Android Module

[Solved] Dynamically change app icon getting app close automatically in Android Module [React Native]

If you’ve encountered issues with your React Native Android application closing unexpectedly when dynamically updating the app icon, you’re not alone. Fortunately, there’s a more efficient approach to handle dynamic icon changes without disrupting the app’s functionality.

The Challenge:

The provided code snippet demonstrates a common problem where updating the app icon leads to the application closing abruptly. Let’s explore a more robust solution to tackle this issue.

The Solution:

Instead of enabling and disabling the main activity, consider utilizing activity aliases with distinct labels and icons for each alias. By implementing activity aliases, you can seamlessly switch between different icons without the unwanted side effect of the application closing.

Implementation:

Define activity aliases in your AndroidManifest.xml, each representing a different app icon. Assign unique labels and icons to these aliases while ensuring they target the main activity:

Switch between icons by enabling or disabling these aliases. To make this process more manageable, consider using an enum in Kotlin or Java:

    ```kotlin
    enum class ICON_COLOUR { RED, BLUE, GREEN }

    private fun setIcon(targetColour: ICON_COLOUR) {
        for (value in ICON_COLOUR.values()) {
            val action = if (value == targetColour) {
                PackageManager.COMPONENT_ENABLED_STATE_ENABLED
            } else {
                PackageManager.COMPONENT_ENABLED_STATE_DISABLED
            }
            packageManager.setComponentEnabledSetting(
                ComponentName(BuildConfig.APPLICATION_ID, "${BuildConfig.APPLICATION_ID}.${value.name}"),
                action, PackageManager.DONT_KILL_APP
            )
        }
    }
    ```

    ```java
    // Java version with enum
    private enum ICON_COLOUR { RED, GREEN, BLUE }

    private void setIcon(ICON_COLOUR targetColour) {
        int action;
        for (ICON_COLOUR value : ICON_COLOUR.values()) {
            if (value == targetColour)
                action = PackageManager.COMPONENT_ENABLED_STATE_ENABLED;
            else
                action = PackageManager.COMPONENT_ENABLED_STATE_DISABLED;

            packageManager.setComponentEnabledSetting(
                new ComponentName(BuildConfig.APPLICATION_ID, value.name()),
                action, PackageManager.DONT_KILL_APP);
        }
    }
    ```

    ```java
    // Java version with String array
    private String[] iconColour = {"RED", "GREEN",  "BLUE"};

    private void setIcon(String targetColour) {
        int action;
        for (String value : iconColour) {
            if (value.equals(targetColour))
                action = PackageManager.COMPONENT_ENABLED_STATE_ENABLED;
            else
                action = PackageManager.COMPONENT_ENABLED_STATE_DISABLED;

            packageManager.setComponentEnabledSetting(
                new ComponentName(BuildConfig.APPLICATION_ID, value),
                action, PackageManager.DONT_KILL_APP);
        }
    }
    ```

    

This implementation ensures a smooth transition between different app icons without causing the application to close unexpectedly.

Conclusion:

By using activity aliases and a well-structured code approach, you can overcome the challenges associated with dynamic app icon changes in React Native Android modules. Implementing these best practices not only resolves the issue of app closures but also enhances the overall user experience.