In an Android application, in order to ensure the normal operation and stability of the application, it is sometimes necessary to keep the process alive. Here are some ways to implement process keepalives:
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Use the foreground service: Call the startForeground() method of the service and pass in a notification object to put the service in the foreground running state. This can make the service a higher priority, thereby reducing the probability of being killed by the system.
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Using JobScheduler: Using this API allows applications to periodically execute tasks with lower power consumption, thereby avoiding long-term occupation of CPU resources.
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Using AlarmManager: Use this API to let the application perform tasks at specified time intervals. For example, an alarm can be set to wake up the app every so often and perform some action.
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Using a daemon: Starts a background daemon that monitors the state of the application and restarts it if the application is killed. It should be noted that in Android 5.0 (API level 21) and above, using the daemon process requires applying for additional permissions.
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Use dual process keep alive: start two mutually bound processes, and when one process is killed, the other process can restart it. It should be noted that in Android 10 (API level 29) and above, dual-process keepalive may cause security holes, so it has been disabled.
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Use WorkManger: This Google's latest persistent task execution API is used to replace JobScheduler. This is a relatively reliable keep-alive mechanism. It involves too much content and will not be repeated here. For details, please refer to