关机、恢复出厂设置（需要系统签名)

val intent =  Intent("com.android.internal.intent.action.REQUEST_SHUTDOWN")
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
intent.putExtra("android.intent.extra.KEY_CONFIRM", false)
context.startActivity(intent)

fun setMasterClear(activity: Activity) {
    val mEraseSdCard = true
    val mEraseEsims = true
    val intent = Intent("android.intent.action.FACTORY_RESET")
    intent.setPackage("android")
    intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND)
    intent.putExtra("android.intent.extra.REASON", "MasterClearConfirm")
    intent.putExtra("android.intent.extra.WIPE_EXTERNAL_STORAGE", mEraseSdCard)
    intent.putExtra("com.android.internal.intent.extra.WIPE_ESIMS", mEraseEsims)
    activity.sendBroadcast(intent)
}