安卓程序 加了个重力感应的应用 就出现了标题的错误。编译通过,在手机上运行就出错了。
手机本身是没问题的,我之前做个类似的程序(手贱源码给删了)。新手真心查不到自己啥地方做错了,还请给位指点下。
具体实现如下import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;public class MainActivity extends Activity implements SensorEventListener{
public void SensorActivity() {
mSensorManager = (SensorManager)getSystemService(SENSOR_SERVICE);
mAccelerometer = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
}
public void onResume() {
super.onResume(); mSensorManager.registerListener(this, mAccelerometer, SensorManager.SENSOR_DELAY_NORMAL);
}
public void onPause() {
// 取消注册监听器
mSensorManager.unregisterListener(this);
super.onPause();
} public void onAccuracyChanged(Sensor sensor, int accuracy) {
}
public void onSensorChanged(SensorEvent event) {
}
}完完全全文档剥下来的 这也会出错==!想请教下 Android如何查看错误呀 那个啥LogCat的 真心看不来。
手机本身是没问题的,我之前做个类似的程序(手贱源码给删了)。新手真心查不到自己啥地方做错了,还请给位指点下。
具体实现如下import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;public class MainActivity extends Activity implements SensorEventListener{
public void SensorActivity() {
mSensorManager = (SensorManager)getSystemService(SENSOR_SERVICE);
mAccelerometer = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
}
public void onResume() {
super.onResume(); mSensorManager.registerListener(this, mAccelerometer, SensorManager.SENSOR_DELAY_NORMAL);
}
public void onPause() {
// 取消注册监听器
mSensorManager.unregisterListener(this);
super.onPause();
} public void onAccuracyChanged(Sensor sensor, int accuracy) {
}
public void onSensorChanged(SensorEvent event) {
}
}完完全全文档剥下来的 这也会出错==!想请教下 Android如何查看错误呀 那个啥LogCat的 真心看不来。
import android.app.Activity;
import android.view.Menu;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.view.Menu;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothSocket;
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.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.widget.Button;
import android.widget.ProgressBar;
import android.widget.SeekBar;
import android.widget.TextView;
import android.widget.Toast;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.UUID;//import com.ThinBTClient.www.ThinBTClient.MyThread;
public class MainActivity extends Activity implements SensorEventListener{
private static final UUID MY_UUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");
private static final String TAG = "BLUEUI";
private static String address = "00:12:10:11:12:62";
static byte[] ask = { 64, 83, -65 };
private static byte[] getNumber;
byte Back = -1;
int Battery;
// int BtnHeight = 100;
// int BtnWidth = 176;
byte Direction = -93;
byte Enter = -65;
byte Fast = 2;
byte Head = 64;
byte Move = -94;
byte Slow = 1;
byte Stop = 0;
int Velocity;
private BluetoothSocket btSocket = null;
int count = 0;
final Handler handler = new Handler();
// private SensorEventListener lsn;
private BluetoothAdapter mBluetoothAdapter = null;
Button mButtonBack;
Button mButtonFast;
Button mButtonSlow;
Button mButtonStop; private OutputStream outStream = null;
ProgressBar progressBar = null;
SeekBar seekBarPWM;
private Sensor mAccelerometer;
private SensorManager mSensorManager;
TextView textBattery;
public void DisplayToast(String paramString)
{
Toast localToast = Toast.makeText(this, paramString, 1);
localToast.setGravity(48, 0, 220);
localToast.show();
} @Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
this.mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
if (this.mBluetoothAdapter == null)
{
Toast.makeText(this, "蓝牙设备不可用,请打开蓝牙!", Toast.LENGTH_LONG).show();
finish();
return;
}
if (!mBluetoothAdapter.isEnabled()) {
Toast.makeText(this, "请打开蓝牙并重新运行程序!", Toast.LENGTH_LONG).show();
finish();
// mBluetoothAdapter.enable();
return;
}
}
public void SensorActivity() {
mSensorManager = (SensorManager)getSystemService(SENSOR_SERVICE);
mAccelerometer = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
}
@Override
public void onResume() {
super.onResume(); mSensorManager.registerListener(this, mAccelerometer, SensorManager.SENSOR_DELAY_NORMAL);
DisplayToast("正在尝试连接智能小车,请稍后····");
BluetoothDevice device = mBluetoothAdapter.getRemoteDevice(address); try { btSocket = device.createRfcommSocketToServiceRecord(MY_UUID); } catch (IOException e) { DisplayToast("套接字创建失败!");
}
DisplayToast("成功连接智能小车!正在连接套接字");
mBluetoothAdapter.cancelDiscovery();
try { btSocket.connect();
DisplayToast("连接成功建立,数据连接打开!");
} catch (IOException e) { try {
btSocket.close(); } catch (IOException e2) {
DisplayToast("连接没有建立,无法关闭套接字!");
}
}
}
@Override
public void onPause() {
// sensorManager.unregisterListener(lsn); // 取消注册监听器
mSensorManager.unregisterListener(this);
super.onPause();
if (outStream != null) {
try {
outStream.flush();
} catch (IOException e) {
e.printStackTrace();
}
}
try {
btSocket.close();
} catch (IOException e2) { DisplayToast("套接字关闭失败!");
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
public void onAccuracyChanged(Sensor sensor, int accuracy) {
}
public void onSensorChanged(SensorEvent event) {
}
}
public void SensorActivity() {
mSensorManager = (SensorManager)getSystemService(SENSOR_SERVICE);
mAccelerometer = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
}
该在onCreate()里面的。