Broadcast receivers are important for managing events in Android apps, but they can be tricky to work with. Here are some of the main challenges:

1. Difficult Setup: Setting up broadcast receivers can be complicated. You need to write things correctly in the manifest file and handle events properly. This can lead to problems that are hard to find.

2. Using Too Many Resources: If broadcast receivers aren't managed well, they can use up a lot of system resources. If they stay active when they shouldn't, it can slow down your app or even cause it to crash.

3. Security Issues: When apps send sensitive information through broadcasts, it can create security risks if the right permissions are not in place.

To overcome these challenges, developers can:

• Use local broadcasts. This means communication happens within the app itself, which is safer and reduces security risks.
• Make sure to register and unregister receivers properly. This helps to use resources more efficiently.
• Use debugging tools to find and fix problems early in the development process.

By following these tips, developers can make their apps work better while keeping them secure.