Package com.kane.sensortest;
Import Java.util.Random;
Import Android.hardware.Sensor;
Import android.hardware.SensorEvent;
Import Android.hardware.SensorEventListener;
Import Android.hardware.SensorManager;
Import Android.os.Bundle;
Import android.app.Activity;
Import Android.view.View;
Import Android.view.View.OnClickListener;
Import Android.widget.Button;
Import Android.widget.TextView;
Import Android.widget.Toast;
public class Mainactivity extends Activity {
Private TextView content;
Private Button btn;
Draw
Private string[] allresults={"She Loves Me", "She Doesn't Love Me", "She Loves him"};
Private random random=new random ();
Private Boolean flag=false;
Private Long startTime =-1;
x acceleration in the initial horizontal direction
private float max = 0;
private float min = 0;
@Override
protected void OnCreate (Bundle savedinstancestate) {
Super.oncreate (savedinstancestate);
Setcontentview (R.layout.activity_main);
Content= (TextView) Findviewbyid (r.id.content);
Btn= (Button) Findviewbyid (R.ID.BTN);
Invoking the Sensor service
Sensormanager manager= (Sensormanager) Getsystemservice (Sensor_service);
Building Sensor objects
Sensor s=manager.getdefaultsensor (Sensor.type_accelerometer);//Accelerator object, and other very many objects
Set up monitoring, when the value in the sensor changes, the self-active monitoring feedback
Manager.registerlistener (New Sensoreventlistener () {
@Override
public void Onsensorchanged (Sensorevent event) {
if (flag) {
if (starttime==-1) {
Starttime=system.currenttimemillis ();
}
When there is a change, run this method on your own initiative
The three-direction acceleration value can be obtained by the event
Float[] values=event.values;
/*stringbuilder builder=new StringBuilder ();
Builder.append (values[0]+ "\ r \ n");
Builder.append (values[1]+ "\ r \ n");
Builder.append (values[2]+ "\ r \ n");
Content.settext (builder); */
if (Values[0]>max) {
Max=values[0];
}
if (values[0]<min) {
Min=values[0];
}
if (Max > && min <-10) {
Flag = false;
Long X=system.currenttimemillis ();
if (x-starttime>2000) {
Toast.maketext (Mainactivity.this, "timeout, please shake Again",
Toast.length_short). Show ();
}
else {
We can make a result.
Randomly generated
int Index=random.nextint (3);
Content.settext ("Result:" +allresults[index]);
}
StartTime =-1;
}
}
}
@Override
public void onaccuracychanged (sensor sensor, int accuracy) {
}
}, S, 0);
Btn.setonclicklistener (New Onclicklistener () {
@Override
public void OnClick (View v) {
Flag=true;
Content.settext ("Please start shaking");
}
});
}
}
Android sensor; Shake a lottery function
