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https://developer.android.com/reference/android/hardware/TriggerEventListener?authuser=4 TriggerEventListener | API reference | Android Developers api reference android developers https://developer.android.com/reference/android/hardware/TriggerEventListener?authuser=002 TriggerEventListener | API reference | Android Developers api reference android developers https://developer.android.com/reference/android/hardware/TriggerEventListener?authuser=1 TriggerEventListener | API reference | Android Developers api reference android developers