Android Open Source - camp-food-manager Droid22 Flashlight

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License

The source code is released under:

GNU General Public License

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Java Source Code

/*
 * Copyright (C) 2010 Sergej Shafarenka, beworx.com
 *//w w  w.j  a va  2s .co  m
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.V4Creations.FSMK.campfoodmanager.flash;

import java.lang.reflect.Method;

import android.content.Context;
import android.os.Build;
import android.os.IBinder;
import android.util.Log;

public class Droid22Flashlight implements Flashlight {

  private static final String TAG = "qs.droid22led";
  private Object mManager;
  
  public int getType() {
    return TYPE_DROID22;
  }

  public boolean isOn(Context context) {
    try {
      Object manager = getManager();
      if (manager != null) {
        Method getFlashlightEnabledMethod = manager.getClass().getMethod("getFlashlightEnabled");
        return (Boolean) getFlashlightEnabledMethod.invoke(manager);
      }
    } catch (Exception e) {
      Log.e(TAG, "", e);
    }
    return false;
  }

  public boolean isSupported(Context context) {
    // Build.VERSION.SDK_INT == 8 && ("shadow".equals(Build.BOARD) || "droid2".equals(Build.BOARD) || "sholes".equals(Build.BOARD)) && getManager() != null;
    if (Build.VERSION.SDK_INT == 8 && getManager() != null) {
      setOn(true, context);
      boolean on = isOn(context);
      setOn(false, context);
      return on;
    }
    return false;
  }

  public void setOn(boolean on, Context context) {
    try {
      Object manager = getManager();
      if (manager != null) {
        Method setFlashlightEnabledMethod = manager.getClass().getMethod("setFlashlightEnabled", boolean.class);
        setFlashlightEnabledMethod.invoke(manager, on);
      }
    } catch (Exception e) {
      Log.e(TAG, "", e);
    }
  }

  private Object getManager() {
    if (mManager == null) {
      try {
        Class<?> managerClass = Class.forName("android.os.ServiceManager");
        Method methodGetService = managerClass.getMethod("getService", String.class);
        IBinder hardwareService = (IBinder) methodGetService.invoke(managerClass, "hardware");
        
        Class<?> stubClass = Class.forName("android.os.IHardwareService$Stub");
        Method asInterfaceMethod = stubClass.getMethod("asInterface", IBinder.class);
        mManager = asInterfaceMethod.invoke(stubClass, hardwareService);
      } catch (Exception e) {
        Log.e(TAG, "", e);
      }
    }
    return mManager;
  }
}

Java Source Code List