android--Shake a Shake

The realization of "shake a Shake" function, in fact, is very simple, is to detect the mobile phone's gravity sensor, the specific implementation code as follows:

First, add the Operation permission in the Androidmanifest.xml

<uses-permission android:name= "Android.permission.VIBRATE"/>

Second, the implementation of the Code

    Package com.xs.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.os.Handler;      Import Android.os.Message;      Import Android.os.Vibrator;      Import Android.util.Log;            Import Android.widget.Toast;          Y {private Sensormanager Sensormanager;                Private vibrator Vibrator;          private static final String TAG = "testsensoractivity";                private static final int sensor_shake = 10; /** called when the activity is first created. */@Override public void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstance              State); Setcontentview (R. Layout.main);              Sensormanager = (Sensormanager) getsystemservice (Sensor_service);          Vibrator = (Vibrator) getsystemservice (Vibrator_service);              } @Override protected void Onresume () {super.onresume (); if (Sensormanager! = null) {//Register listener Sensormanager.registerlistener (Sensoreventlistener, sensormanager.ge                  Tdefaultsensor (Sensor.type_accelerometer), sensormanager.sensor_delay_normal); The first parameter is listener, the second parameter is the resulting sensor type, the third parameter value gets the frequency of the Sensor information}} @Override protected Voi              D OnPause () {super.onpause ();              if (Sensormanager! = null) {//Cancels listener Sensormanager.unregisterlistener (Sensoreventlistener); }}/** * Gravity sensing monitor */private Sensoreventlistener Sensoreventlistener = New Sensoreventlistener () {@Override public VOID onsensorchanged (Sensorevent event) {//sensor information changed when executing this method float[] values = event.values; float x = values[0]; The gravitational acceleration in the x-axis direction, right is positive float y = values[1]; The gravitational acceleration of the y-axis, forward is positive float z = values[2];                  The gravitational acceleration of the z-axis, upward is the positive log.i (TAG, "The gravitational acceleration of the X-axis" + x + "; The gravitational acceleration of the y-axis" + y + "; z-axis direction of gravitational acceleration" + Z);                  Generally in these three directions the acceleration of gravity reached 40 to the state of shaking the phone. int medumvalue = 19;//Samsung i9250 No more than 20, no way, only set 19 if (Math.Abs (x) > Medumvalue | | Math.Abs (y) > Medumvalue | |                      Math.Abs (z) > Medumvalue) {vibrator.vibrate (200);                      Message msg = new Message ();                      Msg.what = Sensor_shake;                  Handler.sendmessage (msg);                    }} @Override public void onaccuracychanged (sensor sensor, int accuracy) {                }          };       /**   * Action Execution */Handler Handler = new Handler () {@Override public void Han                  Dlemessage (Message msg) {super.handlemessage (msg); Switch (msg.what) {case SENSOR_SHAKE:Toast.makeText (testsensoractivity.this, "shake detected Shake, perform the operation!                      ", Toast.length_short). Show (); LOG.I (TAG, "shake detected, perform operation!")                      ");                  Break      }              }                };   }

android--Shake a Shake