Android ANR

What Triggers ANR?

---

In Android, application responsiveness is monitored by the Activity Manager and Window Manager system services. Android will display the ANR dialog for a particular application when it detects one of the following conditions:

• No response to an input event (e.g. key press, screen touch) within 5 seconds
• A BroadcastReceiver hasn't finished executing within 10 seconds

How To Avoid ANR?

---

Thread

How To Detect ANR?

---

You can use StrictMode to help find potentially long running operations such as network or database operations that you might accidentally be doing your main thread.