Al usar la aplicación de acelerómetro se bloquea

Question

No puedo encontrar dónde está el problema. Cuando agito el teléfono lo que debe hacer es cambiar. El texto de la vista de texto, pero en su lugar, cuando lo sacudo, se estrella. ¿Cuál es el problema en mi código? He intentado mirar el logcat, pero aún no estoy capacitado para entender algo de él. (especialmente porque mi idioma nativo no es el inglés). ¡Gracias! Actividad principal

package nir.rauch.accelrate;

import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.os.Vibrator;
import android.widget.TextView;

public class MainActivity extends Activity
{
  private ShakeListener mShaker;
public TextView text;
  @Override
  public void onCreate(Bundle savedInstanceState)
  {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
final TextView text =(TextView)findViewById(R.id.textView1);
    final Vibrator vibe = (Vibrator)getSystemService(Context.VIBRATOR_SERVICE);
mShaker = new ShakeListener(this);
mShaker.setOnShakeListener(new ShakeListener.OnShakeListener () {
  public void onShake()
  {
    vibe.vibrate(100);
   text.setText("" + "what a suprise! after the shaking The text has been changed and it also "
        + "Vibrates , so AMAZING!");
  }
});
  }

  @Override
  public void onResume()
  {
    mShaker.resume();
    super.onResume();
  }
  @Override
  public void onPause()
  {
    mShaker.pause();
    super.onPause();
  }
}

la actividad de la coctelera

    package nir.rauch.accelrate;

import android.hardware.SensorListener;
import android.hardware.SensorManager;
import android.content.Context;
import java.lang.UnsupportedOperationException;

public class ShakeListener implements SensorListener 
{
  private static final int FORCE_THRESHOLD = 350;
  private static final int TIME_THRESHOLD = 100;
  private static final int SHAKE_TIMEOUT = 500;
  private static final int SHAKE_DURATION = 1000;
  private static final int SHAKE_COUNT = 3;

  private SensorManager mSensorMgr;
  private float mLastX=-1.0f, mLastY=-1.0f, mLastZ=-1.0f;
  private long mLastTime;
  private OnShakeListener mShakeListener;
  private Context mContext;
  private int mShakeCount = 0;
  private long mLastShake;
  private long mLastForce;

  public interface OnShakeListener
  {
    public void onShake();
  }

  public ShakeListener(Context context) 
  { 
    mContext = context;
    resume();
  }

  public void setOnShakeListener(OnShakeListener listener)
  {
    mShakeListener = listener;
  }

  public void resume() {
    mSensorMgr = (SensorManager)mContext.getSystemService(Context.SENSOR_SERVICE);
    if (mSensorMgr == null) {
      throw new UnsupportedOperationException("Sensors not supported");
    }
    boolean supported = mSensorMgr.registerListener(this, SensorManager.SENSOR_ACCELEROMETER, SensorManager.SENSOR_DELAY_GAME);
    if (!supported) {
      mSensorMgr.unregisterListener(this, SensorManager.SENSOR_ACCELEROMETER);
      throw new UnsupportedOperationException("Accelerometer not supported");
    }
  }

  public void pause() {
    if (mSensorMgr != null) {
      mSensorMgr.unregisterListener(this, SensorManager.SENSOR_ACCELEROMETER);
      mSensorMgr = null;
    }
  }

  public void onAccuracyChanged(int sensor, int accuracy) { }

  public void onSensorChanged(int sensor, float[] values) 
  {
    if (sensor != SensorManager.SENSOR_ACCELEROMETER) return;
    long now = System.currentTimeMillis();

    if ((now - mLastForce) > SHAKE_TIMEOUT) {
      mShakeCount = 0;
    }

    if ((now - mLastTime) > TIME_THRESHOLD) {
      long diff = now - mLastTime;
      float speed = Math.abs(values[SensorManager.DATA_X] + values[SensorManager.DATA_Y] + values[SensorManager.DATA_Z] - mLastX - mLastY - mLastZ) / diff * 10000;
      if (speed > FORCE_THRESHOLD) {
        if ((++mShakeCount >= SHAKE_COUNT) && (now - mLastShake > SHAKE_DURATION)) {
          mLastShake = now;
          mShakeCount = 0;
          if (mShakeListener != null) { 
            mShakeListener.onShake(); 
          }
        }
        mLastForce = now;
      }
      mLastTime = now;
      mLastX = values[SensorManager.DATA_X];
      mLastY = values[SensorManager.DATA_Y];
      mLastZ = values[SensorManager.DATA_Z];
    }
  }

}

El archivo XML:

    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="40sp"
        android:text="Does the Accelorometer works? Shake it and found out!" />


</RelativeLayout>

mi logcat:

    04-12 18:49:15.831: E/SensorManager(5343): Exception dispatching input event.
04-12 18:49:15.831: E/AndroidRuntime(5343): FATAL EXCEPTION: main
04-12 18:49:15.831: E/AndroidRuntime(5343): java.lang.SecurityException: Requires VIBRATE permission
04-12 18:49:15.831: E/AndroidRuntime(5343):     at android.os.Parcel.readException(Parcel.java:1431)
04-12 18:49:15.831: E/AndroidRuntime(5343):     at android.os.Parcel.readException(Parcel.java:1385)
04-12 18:49:15.831: E/AndroidRuntime(5343):     at android.os.IVibratorService$Stub$Proxy.vibrateMagnitude(IVibratorService.java:342)
04-12 18:49:15.831: E/AndroidRuntime(5343):     at android.os.SystemVibrator.vibrate(SystemVibrator.java:115)
04-12 18:49:15.831: E/AndroidRuntime(5343):     at android.os.SystemVibrator.vibrate(SystemVibrator.java:83)
04-12 18:49:15.831: E/AndroidRuntime(5343):     at nir.rauch.accelrate.MainActivity$1.onShake(MainActivity.java:25)
04-12 18:49:15.831: E/AndroidRuntime(5343):     at nir.rauch.accelrate.ShakeListener.onSensorChanged(ShakeListener.java:79)
04-12 18:49:15.831: E/AndroidRuntime(5343):     at android.hardware.LegacySensorManager$LegacyListener.onSensorChanged(LegacySensorManager.java:274)
04-12 18:49:15.831: E/AndroidRuntime(5343):     at android.hardware.SystemSensorManager$SensorEventQueue.dispatchSensorEvent(SystemSensorManager.java:467)
04-12 18:49:15.831: E/AndroidRuntime(5343):     at android.os.MessageQueue.nativePollOnce(Native Method)
04-12 18:49:15.831: E/AndroidRuntime(5343):     at android.os.MessageQueue.next(MessageQueue.java:132)
04-12 18:49:15.831: E/AndroidRuntime(5343):     at android.os.Looper.loop(Looper.java:124)
04-12 18:49:15.831: E/AndroidRuntime(5343):     at android.app.ActivityThread.main(ActivityThread.java:5419)
04-12 18:49:15.831: E/AndroidRuntime(5343):     at java.lang.reflect.Method.invokeNative(Native Method)
04-12 18:49:15.831: E/AndroidRuntime(5343):     at java.lang.reflect.Method.invoke(Method.java:525)
04-12 18:49:15.831: E/AndroidRuntime(5343):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1187)
04-12 18:49:15.831: E/AndroidRuntime(5343):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1003)
04-12 18:49:15.831: E/AndroidRuntime(5343):     at dalvik.system.NativeStart.main(Native Method)
04-12 18:55:45.396: E/SensorManager(6408): Exception dispatching input event.
04-12 18:55:45.401: E/AndroidRuntime(6408): FATAL EXCEPTION: main
04-12 18:55:45.401: E/AndroidRuntime(6408): java.lang.SecurityException: Requires VIBRATE permission
04-12 18:55:45.401: E/AndroidRuntime(6408):     at android.os.Parcel.readException(Parcel.java:1431)
04-12 18:55:45.401: E/AndroidRuntime(6408):     at android.os.Parcel.readException(Parcel.java:1385)
04-12 18:55:45.401: E/AndroidRuntime(6408):     at android.os.IVibratorService$Stub$Proxy.vibrateMagnitude(IVibratorService.java:342)
04-12 18:55:45.401: E/AndroidRuntime(6408):     at android.os.SystemVibrator.vibrate(SystemVibrator.java:115)
04-12 18:55:45.401: E/AndroidRuntime(6408):     at android.os.SystemVibrator.vibrate(SystemVibrator.java:83)
04-12 18:55:45.401: E/AndroidRuntime(6408):     at nir.rauch.accelrate.MainActivity$1.onShake(MainActivity.java:25)
04-12 18:55:45.401: E/AndroidRuntime(6408):     at nir.rauch.accelrate.ShakeListener.onSensorChanged(ShakeListener.java:79)
04-12 18:55:45.401: E/AndroidRuntime(6408):     at android.hardware.LegacySensorManager$LegacyListener.onSensorChanged(LegacySensorManager.java:274)
04-12 18:55:45.401: E/AndroidRuntime(6408):     at android.hardware.SystemSensorManager$SensorEventQueue.dispatchSensorEvent(SystemSensorManager.java:467)
04-12 18:55:45.401: E/AndroidRuntime(6408):     at android.os.MessageQueue.nativePollOnce(Native Method)
04-12 18:55:45.401: E/AndroidRuntime(6408):     at android.os.MessageQueue.next(MessageQueue.java:132)
04-12 18:55:45.401: E/AndroidRuntime(6408):     at android.os.Looper.loop(Looper.java:124)
04-12 18:55:45.401: E/AndroidRuntime(6408):     at android.app.ActivityThread.main(ActivityThread.java:5419)
04-12 18:55:45.401: E/AndroidRuntime(6408):     at java.lang.reflect.Method.invokeNative(Native Method)
04-12 18:55:45.401: E/AndroidRuntime(6408):     at java.lang.reflect.Method.invoke(Method.java:525)
04-12 18:55:45.401: E/AndroidRuntime(6408):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1187)
04-12 18:55:45.401: E/AndroidRuntime(6408):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1003)
04-12 18:55:45.401: E/AndroidRuntime(6408):     at dalvik.system.NativeStart.main(Native Method)

Answer 1

Como dijo su logcat,

java.lang.securityException: requiere permiso de vibración

Necesitas permiso de vibración.Por lo tanto, necesita agregar la siguiente línea al archivo de manifiesto:

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