我正在尝试通过闹钟启动一个活动。PendingIntent启动一个接收器,接收器再启动活动。我目前遇到的问题是,活动在后台启动,无法听到闹钟声音。
大多数旧SO问题中的标志对于Oreo和更新的设备已经过时。有没有人有一个好的方法来处理这个问题?
提前感谢您。
闹钟创建:
提前感谢您。
闹钟创建:
alarmManager.setExact(AlarmManager.RTC_WAKEUP, intervalFinished, pendingIntent)
接收器
class OnAlarmReceiver : BroadcastReceiver() {
override fun onReceive(context: Context, intent: Intent) {
val intent = Intent(context, AlarmActivity::class.java)
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
context.startActivity(intent)
}
}
活动:
private var wake: PowerManager.WakeLock? = null
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
val powerManager = getSystemService(Context.POWER_SERVICE) as PowerManager
wake = powerManager.newWakeLock(PowerManager.FULL_WAKE_LOCK
or PowerManager.ACQUIRE_CAUSES_WAKEUP, "App:wakeuptag")
wake?.acquire(10*60*1000L /*10 minutes*/)
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O_MR1) {
setShowWhenLocked(true)
setTurnScreenOn(true)
} else {
window.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED
or WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD
or WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON
or WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON
or WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON)
}
setContentView(R.layout.activity_layout)
}
override fun onPause() {
super.onPause()
if(wake != null && wake!!.isHeld){
wake!!.release()
}
}