android感应器开发之加速度、方向传感器

package cn.com.gogler.sensor; import java.io.IOException; import android.app.Activity; 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.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.CheckBox; import android.widget.EditText; import android.widget.TextView; import android.widget.ToggleButton; public class ACCActivity extends Activity implements SensorEventListener { private SensorManager sms; private CheckBox acc , orientation; private ToggleButton toggleButton1; private Button stop , button1 , button2; private EditText editText1; private StringBuilder as; private TextView textView1 , textView2; private final String accs = "当前加速度(x,y,z):" , oris = "当前方向值(z,x,y):"; private final String accfile = "acc.txt" , orifile = "ori.txt"; private FileHelper fh; private String defaultEdit = "输入操作描述"; @Override public void onAccuracyChanged(Sensor sensor, int accuracy) { } @Override public void onCreate(Bundle savedInstanceState) { /** Called when the activity is first created. */ super.onCreate(savedInstanceState); setContentView(R.layout.main); acc = (CheckBox) this.findViewById(R.id.acc); orientation = (CheckBox) this.findViewById(R.id.orientation); toggleButton1 = (ToggleButton) this.findViewById(R.id.toggleButton1); stop = (Button) this.findViewById(R.id.stop); textView1 = (TextView) this.findViewById(R.id.textView1); textView2 = (TextView) this.findViewById(R.id.textView2); button1 = (Button) this.findViewById(R.id.button1); button2 = (Button) this.findViewById(R.id.button2); editText1 = (EditText) this.findViewById(R.id.editText1); fh = new FileHelper(this.getApplicationContext()); /* 将操作描述写入文件-方向传感器数据文件 */ button1.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { defaultEdit = editText1.getText().toString(); fh.writeFileData(orifile, defaultEdit); } }); /* 将操作描述写入文件-加速度传感器数据文件 */ button2.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { defaultEdit = editText1.getText().toString(); fh.writeFileData(accfile, defaultEdit); } }); /* 关闭程序 */ stop.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { ACCActivity.this.finish(); } }); /* 获取系统的传感器管理服务 */ sms = (SensorManager) getSystemService(Context.SENSOR_SERVICE); try {/* 创建数据存放文件 */ fh.createSDFile(accfile); fh.createSDFile(orifile); } catch (final IOException e) { e.printStackTrace(); } } @Override protected void onPause() { sms.unregisterListener(this); super.onPause(); } @Override protected void onResume() { super.onResume(); /* 为系统的感应器注册监听器 */ if (toggleButton1.isChecked()) { if (orientation.isChecked()) { sms.registerListener(this, sms.getDefaultSensor(Sensor.TYPE_ORIENTATION), SensorManager.SENSOR_DELAY_GAME); } if (acc.isChecked()) { sms.registerListener(this, sms.getDefaultSensor(Sensor.TYPE_ACCELEROMETER), SensorManager.SENSOR_DELAY_GAME); } } else { sms.unregisterListener(this); } } @Override public void onSensorChanged(SensorEvent event) { /** * 处理不同类型传感器返回的数据，写入文件保存起来。 * */ final float[] values = event.values; final int sensorType = event.sensor.getType(); if (toggleButton1.isChecked()) { switch (sensorType) { case Sensor.TYPE_ACCELEROMETER: as = new StringBuilder(); as.append("(" + (int) values[0] + "," + (int) values[1] + "," + (int) values[2] + ")\n"); textView1.setText(accs + as); fh.writeFileData(accfile, as.toString()); case Sensor.TYPE_ORIENTATION: as = new StringBuilder(); as.append("(" + (int) values[0] + "," + (int) values[1] + "," + (int) values[2] + ")\n"); textView2.setText(oris + as); fh.writeFileData(orifile, as.toString()); } } } @Override protected void onStop() { sms.unregisterListener(this); super.onStop(); } }