Android gravity sensor application [Android evolution 17th]

 

Gravity sensing is mainly used in game development. This effect is very good! It is mainly three axes. It is easy to understand: that is facing up, the value is positive, and the value is down negative! I have tested this effect, because gravity sensing can be realized on the mobile phone, so no. Sorry! Reprinted please indicate the source: http://blog.csdn.net/wdaming1986/article/details/6752232

 

1. MainActivity. Java code:

 

Package com. ray. test;

 

Import android. app. Activity;

Import android. hardware. Sensor;

Import android. hardware. SensorEvent;

Import android. hardware. SensorEventListener;

Import android. hardware. SensorManager;

Import android. OS. Bundle;

Import android. widget. TextView;

 

Public class MainActivity extends Activity {

 

Private SensorManager sensorMgr;

Private TextView show_TextView;

Sensor sensor;

Private float x, y, z;

@ Override

Protected void onCreate (Bundle savedInstanceState ){

Super. onCreate (savedInstanceState );

SetContentView (R. layout. main );

Show_TextView = (TextView) findViewById (R. id. text_view );

SensorMgr = (SensorManager) getSystemService (SENSOR_SERVICE );

Sensor = sensorMgr. getdefasensensor (Sensor. TYPE_ACCELEROMETER );

SensorEventListener lsn = new SensorEventListener ()

{

@ Override

Public void onSensorChanged (SensorEvent e ){

// TODO Auto-generated method stub

X = e. values [SensorManager. DATA_X];

Y = e. values [SensorManager. DATA_Y];

Z = e. values [SensorManager. DATA_Z];

SetTitle ("x =" + (int) x + "," + "y =" + (int) y + "," + "z =" + (int) z );

Show_TextView.setText ("x =" + (int) x + "," + "y =" + (int) y + "," + "z =" + (int) z );

}

 

@ Override

Public void onAccuracyChanged (Sensor arg0, int arg1 ){

}

}; // Register the listener. The third parameter is the detection accuracy.

SensorMgr. registerListener (lsn, sensor, SensorManager. SENSOR_DELAY_GAME );

}

 

}

Ii. main. xml code: www.2cto.com

 

<? Xml version = "1.0" encoding = "UTF-8"?>

 

<LinearLayout xmlns: android = "http://schemas.android.com/apk/res/android"

Android: orientation = "vertical"

Android: layout_width = "fill_parent"

Android: layout_height = "fill_parent"

>

<TextView

Android: id = "@ + id/text_view"

Android: layout_width = "fill_parent"

Android: layout_height = "wrap_content"

Android: textSize = "25pt"

/>

 

</LinearLayout>