Yoctopuce Yocto-Display, User Manual

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updateDisplay ( null );
}
@Override
public void onNothingSelected ( AdapterView <?> arg0 )
{
}
public void updateDisplay ( View view )
{
if ( display == null )
return;
EditText message
= ( EditText ) findViewById ( R. id . editText1 );
// clean up
try {
display. resetAll ();
// retreive the display size
int w = display. get_displayWidth ();
int h = display. get_displayHeight ();
// reteive the first layer
YDisplayLayer l0 = display. get_displayLayer ( 0 );
// display a text in the middle of the screen
l0. drawText ( w / 2 , h / 2 , YDisplayLayer . ALIGN . CENTER , message. getText (
) . toString ());
// visualize each corner
l0. moveTo ( 0 , 5 );
l0. lineTo ( 0 , 0 );
l0. lineTo ( 5 , 0 );
l0. moveTo ( 0 , h - 6 );
l0. lineTo ( 0 , h - 1 );
l0. lineTo ( 5 , h - 1 );
l0. moveTo ( w - 1 , h - 6 );
l0. lineTo ( w - 1 , h - 1 );
l0. lineTo ( w - 6 , h - 1 );
l0. moveTo ( w - 1 , 5 );
l0. lineTo ( w - 1 , 0 );
l0. lineTo ( w - 6 , 0 );
} catch ( YAPI_Exception e ) {
e. printStackTrace ();
}
}
}
19.6. Control of the module part
Each module can be controlled in a similar manner, you can find below a simple sample program
displaying the main parameters of the module and enabling you to activate the localization beacon.
package com.yoctopuce.doc_examples ;
import android.app.Activity ;
import android.os.Bundle ;
import android.view.View ;
import android.widget.AdapterView ;
import android.widget.AdapterView.OnItemSelectedListener ;
import android.widget.ArrayAdapter ;
import android.widget.Spinner ;
import android.widget.Switch ;
import android.widget.TextView ;
import com.yoctopuce.YoctoAPI.YAPI ;
import com.yoctopuce.YoctoAPI.YAPI_Exception ;
import com.yoctopuce.YoctoAPI.YModule ;
public class ModuleControl extends Activity implements OnItemSelectedListener
19. Using the Yocto-Display with Android
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