I am trying to get the phone angles by using TYPE_ACCELEROMETER sensor. My goal is to get the angle values only after the phone is tilted. It works, but the problem is when I put my phone facing up on the table, it still says isLandscape = true;
private boolean isLandscape;
mSensorManager = (SensorManager)getSystemService(SENSOR_SERVICE);
mSensorManager.registerListener(mSensorListener, mSensorManager.getDefaultSensor(
Sensor.TYPE_ACCELEROMETER),1000000);
private final SensorEventListener mSensorListener = new SensorEventListener() {
@Override
public void onSensorChanged(SensorEvent mSensorEvent) {
float X_Axis = mSensorEvent.values[0];
float Y_Axis = mSensorEvent.values[1];
double angle = Math.atan2(X_Axis, Y_Axis)/(Math.PI/180);
if(!isLandscape) {
if(angle > 80) {
Orientation = 90;
isLandscape = true;
}
}
else
{
if(Math.abs(angle) < 10) {
Orientation = 0; //portrait
isLandscape = false;
}
}
}
public void onAccuracyChanged(Sensor sensor, int accuracy) {
}
};
What's the best way to get the phone angles only after the phone is tilted? I am sorry for bad English,
Thank you.
I don't know if i understand your question ,but i think you want your app to calculate the angel of tilt only if the phone is in portrait ,first you need to take the value of mSensorEvent.values[0]
and in this case if the phone in stand state in will return 0
, tilt to right will be negative values from 1 to 9 ,and the left positive .
then you have to do all this just in case of mSensorEvent.values[1]
values between 9 and 7 for example (9 is perfect stand) . to ensure the the device in portrait position .
and if you need the degree angle values you can multiply the float value of mSensorEvent.values
by 10.
i hope this help you
UPDATE***
you can try this :
private boolean isLandscape;
@Override
public void onSensorChanged(SensorEvent mSensorEvent) {
float X_Axis = mSensorEvent.values[0];
float Y_Axis = mSensorEvent.values[1];
if((X_Axis <= 6 && X_Axis >= -6) && Y_Axis > 5){
isLandscape = false;
}
else if(X_Axis >= 6 || X_Axis <= -6){
isLandscape = true;
}
}