MagneticFieldActivity.java

package com.zzx.factorytest;

import com.zzx.factorytest.manager.FactoryTestManager;
import android.content.Context;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.os.Bundle;
import android.view.Window;
import android.view.WindowManager;
import android.widget.ProgressBar;
import android.widget.TextView;

/**
 *
 * 描述：磁场测试Activity 陈伟斌 2013-4-11
 */
public class MagneticFieldActivity extends TestItemBaseActivity implements
        SensorEventListener {

    private Sensor magnetSensor;

    private SensorManager mSensorManager;

    private TextView txtX;
    private TextView txtY;
    private TextView txtZ;

    private ProgressBar pbarX;
    private ProgressBar pbarY;
    private ProgressBar pbarZ;

    private final int AUTO_TEST_TIMEOUT = 3;// 自动测试超时时间
    private final int AUTO_TEST_MINI_SHOW_TIME = 2;// 自动测试超时时间
    private final float AUTO_TEST_RANGE = 0.01f;// 自动测试界限值

    private float pre_x;
    private float pre_y;
    private float pre_z;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams. FLAG_FULLSCREEN);
        setContentView(R.layout.magnetic_field_layout);
        super.onCreate(savedInstanceState);

        txtX = (TextView) findViewById(R.id.txtX);
        txtY = (TextView) findViewById(R.id.txtY);
        txtZ = (TextView) findViewById(R.id.txtZ);

        pbarX = (ProgressBar) findViewById(R.id.pbarX);
        pbarY = (ProgressBar) findViewById(R.id.pbarY);
        pbarZ = (ProgressBar) findViewById(R.id.pbarZ);

        mSensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
        magnetSensor = mSensorManager
                .getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD);
        mSensorManager.registerListener(this, magnetSensor,
                SensorManager.SENSOR_DELAY_NORMAL);
    }

    @Override
    protected void onDestroy() {
        mSensorManager.unregisterListener(this, magnetSensor);
        super.onDestroy();
    }

    @Override
    void executeAutoTest() {
        super.startAutoTest(AUTO_TEST_TIMEOUT, AUTO_TEST_MINI_SHOW_TIME);

    }

    @Override
    public void onAccuracyChanged(Sensor sensor, int accuracy) {
    }

    @Override
    public void onSensorChanged(SensorEvent event) {
        float x = event.values[0];
        float y = event.values[1];
        float z = event.values[2];
        txtX.setText(String.format("X: %.02f", x));
        txtY.setText(String.format("Y: %.02f", y));
        txtZ.setText(String.format("Y: %.02f", z));

        double d = Math.sqrt(x * x + y * y + z * z);

        pbarX.setProgress(Math.abs((int) (100.0D * (x / d))));
        pbarY.setProgress(Math.abs((int) (100.0D * (y / d))));
        pbarZ.setProgress(Math.abs((int) (100.0D * (z / d))));

        // 自动测试测试结果计算
        boolean xResult = Math.abs(x - pre_x) > AUTO_TEST_RANGE;
        boolean yResult = Math.abs(y - pre_y) > AUTO_TEST_RANGE;
        boolean zResult = Math.abs(z - pre_z) > AUTO_TEST_RANGE;

        if (FactoryTestManager.currentTestMode==FactoryTestManager.TestMode.MODE_AUTO_TEST&&xResult && yResult && zResult) {
            synchronized (this) {
                mSensorManager.unregisterListener(this, magnetSensor);
                stopAutoTest(true);
            }
        }
        pre_x = x;
        pre_y = y;
        pre_z = z;
    }

}