Remove ShakeDetector

* It makes no sense to do that in app

app/src/main/java/com/hippo/ehviewer/ui/scene/SecurityScene.java

@@ -32,7 +32,6 @@ import androidx.biometric.BiometricPrompt;
 import com.hippo.ehviewer.R;
 import com.hippo.ehviewer.Settings;
 import com.hippo.ehviewer.ui.MainActivity;
-import com.hippo.hardware.ShakeDetector;
 import com.hippo.widget.lockpattern.LockPatternUtils;
 import com.hippo.widget.lockpattern.LockPatternView;
 import com.hippo.yorozuya.ObjectUtils;
@@ -42,7 +41,7 @@ import java.util.List;
 import java.util.concurrent.Executors;
 
 public class SecurityScene extends SolidScene implements
-        LockPatternView.OnPatternListener, ShakeDetector.OnShakeListener {
+        LockPatternView.OnPatternListener{
 
     private static final int MAX_RETRY_TIMES = 5;
     private static final String KEY_RETRY_TIMES = "retry_times";
@@ -52,7 +51,6 @@ public class SecurityScene extends SolidScene implements
 
     private SensorManager mSensorManager;
     private Sensor mAccelerometer;
-    private ShakeDetector mShakeDetector;
     private BiometricPrompt.PromptInfo promptInfo;
     private BiometricPrompt biometricPrompt;
     private boolean canAuthenticate = false;
@@ -72,10 +70,6 @@ public class SecurityScene extends SolidScene implements
         mSensorManager = (SensorManager) context.getSystemService(Context.SENSOR_SERVICE);
         if (null != mSensorManager) {
             mAccelerometer = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
-            if (null != mAccelerometer) {
-                mShakeDetector = new ShakeDetector();
-                mShakeDetector.setOnShakeListener(this);
-            }
         }
 
         if (null == savedInstanceState) {
@@ -116,17 +110,12 @@ public class SecurityScene extends SolidScene implements
 
         mSensorManager = null;
         mAccelerometer = null;
-        mShakeDetector = null;
     }
 
     @Override
     public void onResume() {
         super.onResume();
 
-        if (null != mShakeDetector) {
-            mSensorManager.registerListener(mShakeDetector, mAccelerometer, SensorManager.SENSOR_DELAY_UI);
-        }
-
         if (canAuthenticate) {
             startBiometricPrompt();
         }
@@ -139,10 +128,6 @@ public class SecurityScene extends SolidScene implements
     @Override
     public void onPause() {
         super.onPause();
-
-        if (null != mShakeDetector) {
-            mSensorManager.unregisterListener(mShakeDetector);
-        }
     }
 
     @Override
@@ -205,17 +190,4 @@ public class SecurityScene extends SolidScene implements
             }
         }
     }
-
-    @Override
-    public void onShake(int count) {
-        if (count == 10) {
-            MainActivity activity = getMainActivity();
-            if (null == activity) {
-                return;
-            }
-            Settings.putSecurity("");
-            startSceneForCheckStep(CHECK_STEP_SECURITY, getArguments());
-            finish();
-        }
-    }
 }

app/src/main/java/com/hippo/hardware/ShakeDetector.java

@@ -1,73 +0,0 @@
-package com.hippo.hardware;
-
-import android.hardware.Sensor;
-import android.hardware.SensorEvent;
-import android.hardware.SensorEventListener;
-import android.hardware.SensorManager;
-
-// http://jasonmcreynolds.com/?p=388
-public class ShakeDetector implements SensorEventListener {
-
-    /*
-     * The gForce that is necessary to register as shake.
-     * Must be greater than 1G (one earth gravity unit).
-     * You can install "G-Force", by Blake La Pierre
-     * from the Google Play Store and run it to see how
-     *  many G's it takes to register a shake
-     */
-    private static final float SHAKE_THRESHOLD_GRAVITY = 2.7F;
-    private static final int SHAKE_SLOP_TIME_MS = 500;
-    private static final int SHAKE_COUNT_RESET_TIME_MS = 3000;
-
-    private OnShakeListener mListener;
-    private long mShakeTimestamp;
-    private int mShakeCount;
-
-    public void setOnShakeListener(OnShakeListener listener) {
-        mListener = listener;
-    }
-
-    @Override
-    public void onAccuracyChanged(Sensor sensor, int accuracy) {
-        // ignore
-    }
-
-    @Override
-    public void onSensorChanged(SensorEvent event) {
-
-        if (mListener != null) {
-            float x = event.values[0];
-            float y = event.values[1];
-            float z = event.values[2];
-
-            float gX = x / SensorManager.GRAVITY_EARTH;
-            float gY = y / SensorManager.GRAVITY_EARTH;
-            float gZ = z / SensorManager.GRAVITY_EARTH;
-
-            // gForce will be close to 1 when there is no movement.
-            float gForce = (float) Math.sqrt(gX * gX + gY * gY + gZ * gZ);
-
-            if (gForce > SHAKE_THRESHOLD_GRAVITY) {
-                final long now = System.currentTimeMillis();
-                // ignore shake events too close to each other (500ms)
-                if (mShakeTimestamp + SHAKE_SLOP_TIME_MS > now) {
-                    return;
-                }
-
-                // reset the shake count after 3 seconds of no shakes
-                if (mShakeTimestamp + SHAKE_COUNT_RESET_TIME_MS < now) {
-                    mShakeCount = 0;
-                }
-
-                mShakeTimestamp = now;
-                mShakeCount++;
-
-                mListener.onShake(mShakeCount);
-            }
-        }
-    }
-
-    public interface OnShakeListener {
-        void onShake(int count);
-    }
-}