Tizen Developers

Hello,
So far I could understand you can detect the device orientation upto 270 degrees. Please go through the Function Documentation section of the link below:

https://developer.tizen.org/zh-hans/development/api-references/native-application?redirect=/dev-guide/2.3.1/org.tizen.native.mobile.apireference/group__CAPI__APP__COMMON__MODULE.html#gab311ebf53f6f3d68118f93797c05b7eb

Thanks.

Well it is not orientation that i want to know. And i am sorry if you dint undestand my requirements.

Aashish

 Hello,

In that case you may use Accelerometer Sensor to detect a flip. When you are taking a pick of an object using rear camera Z component of accelerometer returns a positive(+) value and when again using the front facing camera Z component of accelerometer returns a negative (-) value. Now you can try this trick...

#include <sensor.h>
float z1=0    //previous data
float z2;		 //present data
//sensor event callback - invoked whenever a change in sensor data occur
void accelerometer _event_callback(sensor_h sensor, sensor_event_s *event, void *user_data) {
	z2= event->values[2];   //current z index value
	if(z1==0)  //first reading
		z1=z2;
	else {	//previous data exists
		if (z1*z2<0) {	//A flip occurred  -previous and present data 1 positive & 1 negative 
		if(z2=>0){
//currently front facing
}
else if(z2<0){
//currently rear facing
}
}
else{
	//not a flip
}
}
  }
// Initial setup
sensor_h sensor;      sensor_listener_h listener;
sensor_type_e  type = SENSOR_ACCELEROMETER;
sensor_get_default_sensor(type, &sensor); 
sensor_create_listener(sensor, &listener);
sensor_listener_set_event_cb(listener, 100, accelerometer _event_callback, NULL);
 sensor_listener_start(listener) ;

/*Stop the sensor after the task  is done*/
//sensor_listener_stop(listener);
//sensor_destroy_listener(listener);

If you want to check some basics on ‘how to work with sensor data’ in tizen native application development you may go through the sensor guide or sensor API references.
https://developer.tizen.org/development/guides/native-application/location-and-sensors/sensors

https://developer.tizen.org/development/api-references/native-application?redirect=https://developer.tizen.org/dev-guide/2.4.0/org.tizen.native.mobile.apireference/group__CAPI__SYSTEM__SENSOR__MODULE.html

Thanks.

Hi Shaswati Saha,

I was aware that accelemeter can be used here. The tip worked well.

Thanks