From df5c6bf98d067edf59d7394cdf35f11a82f15844 Mon Sep 17 00:00:00 2001
From: Richard Moe Gustavsen <richard.gustavsen@digia.com>
Date: Mon, 18 Mar 2013 15:23:29 +0100
Subject: iOS: set data rate on accelerometer before starting it

Respect user data rate settings by applying the rate just
before the sensor starts

Change-Id: I3da37497c574cbf94d57699c941ce2bf3b54373c
Reviewed-by: Thomas McGuire <thomas.mcguire@kdab.com>
Reviewed-by: Lorn Potter <lorn.potter@jollamobile.com>
---
 src/plugins/sensors/ios/iosaccelerometer.mm | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src/plugins')

diff --git a/src/plugins/sensors/ios/iosaccelerometer.mm b/src/plugins/sensors/ios/iosaccelerometer.mm
index 47349c5a..a01e4186 100644
--- a/src/plugins/sensors/ios/iosaccelerometer.mm
+++ b/src/plugins/sensors/ios/iosaccelerometer.mm
@@ -124,6 +124,10 @@ IOSAccelerometer::~IOSAccelerometer()
 
 void IOSAccelerometer::start()
 {
+    // Convert from Hz to NSTimeInterval:
+    int hz = sensor()->dataRate();
+    NSTimeInterval interval = (hz == 0) ? 0 : 1. / hz;
+    [m_listener setInterval:interval];
     [m_listener startAccelerometer];
 }
 
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