Android Open Source - CallerFlashlight Flash

From Project

License

The source code is released under:
GNU General Public License
If you think the Android project CallerFlashlight listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.
Java Source Code

package com.spirosbond.callerflashlight;
//  w w w.j a v a  2s .  c  o  m
import android.app.Service;
import android.graphics.PixelFormat;
import android.hardware.Camera;
import android.util.Log;
import android.view.View;
import android.view.WindowManager;
import android.widget.FrameLayout;
import android.widget.LinearLayout;

import com.bugsense.trace.BugSenseHandler;

/**
 * Created by spiros on 8/7/13.
 */
public class Flash {

  private final static String TAG = Flash.class.getSimpleName();
  public static boolean gotCam = false;
  private static Camera cam;
  private static int running;
  //  private static SurfaceView preview;
  private static CallerFlashlight cf;
  //  private static SurfaceHolder mHolder;
  private static Camera.Parameters pon, poff;
  private static LinearLayout orientationChanger;


  public Flash(CallerFlashlight cf) {
    Flash.cf = cf;
    if (!gotCam) {
      try {
        cam = Camera.open();
        if (CallerFlashlight.LOG) Log.d(TAG, "Constructor: Camera opened successfully");
        gotCam = true;

      } catch (NullPointerException e) {
        e.printStackTrace();
        gotCam = false;
        return;
      } catch (RuntimeException e) {
        if (CallerFlashlight.LOG) Log.d(TAG, "Constructor: Unable to open the camera. Is already Opened??");
        gotCam = false;
        return;

      }
    }

    loadParameters();
  }

  public static int getRunning() {
    return running;
  }

  public static void incRunning() {

    Flash.running = Flash.running + 1;
    if (CallerFlashlight.LOG) Log.d(TAG, "running: " + running);
  }

  public static void decRunning() {

    Flash.running = Flash.running - 1;
    if (CallerFlashlight.LOG) Log.d(TAG, "running: " + running);
  }

  public static void releaseCam() {
    if (CallerFlashlight.LOG) Log.d(TAG, "releaseCam");
    if (cf.getType() == CallerFlashlight.TYPE_ALTERNATIVE || cf.getType() == CallerFlashlight.TYPE_ALTERNATIVE_2) {
      try {
        orientationChanger.setVisibility(View.GONE);
      } catch (Exception e) {
        e.printStackTrace();
        if (CallerFlashlight.LOG) Log.d(TAG, "Failed to destroy SurfaceView");
      }
    }
    if (gotCam) {
      try {
        //        cam.stopPreview();
        cam.release();
        gotCam = false;
        if (CallerFlashlight.LOG) Log.d(TAG, "Cam released");
      } catch (Exception e) {
        e.printStackTrace();
        if (CallerFlashlight.LOG) Log.d(TAG, "failed to release cam");
      }
    }
  }

  private void loadParameters() {
    if (cf.getType() == CallerFlashlight.TYPE_ALTERNATIVE || cf.getType() == CallerFlashlight.TYPE_ALTERNATIVE_2) {

      LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(1, 1);

      if (cf.getType() == CallerFlashlight.TYPE_ALTERNATIVE) {
        layoutParams.setMargins(1000, 1000, 1000, 1000);
      } else if (cf.getType() == CallerFlashlight.TYPE_ALTERNATIVE_2) {
        layoutParams.setMargins(cf.getScreenWidth() - 1, cf.getScreenHeight() - 50, 0, 0);
      }

      //    preview.setLayoutParams(layoutParams);
      //      FrameLayout frame = new FrameLayout(cf.getApplicationContext());

      orientationChanger = new LinearLayout(cf.getApplicationContext());

      WindowManager.LayoutParams orientationLayout = new WindowManager.LayoutParams(WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY, 0,
          PixelFormat.RGBA_8888);

      WindowManager wm = (WindowManager) cf.getApplicationContext().getSystemService(Service.WINDOW_SERVICE);

      FrameLayout frame = new FrameLayout(cf.getApplicationContext());
      frame.setLayoutParams(layoutParams);
      CameraSurface preview = new CameraSurface(cf.getApplicationContext(), cam);
      preview.setLayoutParams(layoutParams);

      frame.addView(preview);

      orientationChanger.addView(frame);
      orientationChanger.setVisibility(View.VISIBLE);

      wm.addView(orientationChanger, orientationLayout);

    }
    try {
      //      if (cf.getType() == CallerFlashlight.TYPE_NORMAL || cf.getType() == CallerFlashlight.TYPE_ALTERNATIVE) {
      pon = cam.getParameters();
      poff = cam.getParameters();
      pon.setFlashMode(Camera.Parameters.FLASH_MODE_TORCH);
      poff.setFlashMode(Camera.Parameters.FLASH_MODE_OFF);
      //      } else if (cf.getType() == CallerFlashlight.TYPE_ALTERNATIVE_2) {
      //        pon = cam.getParameters();
      //        poff = cam.getParameters();
      //        pon.setFlashMode(Camera.Parameters.FLASH_MODE_ON);
      //        poff.setFlashMode(Camera.Parameters.FLASH_MODE_OFF);
      //      }
    } catch (Exception e) {
      if (CallerFlashlight.LOG) Log.d(TAG, "unable to get parameters");
      e.printStackTrace();
      BugSenseHandler.sendException(e);
    }
  }

  public void enableFlash(long onMillis, long offMillis) {
    //    if (CallerFlashlight.LOG) Log.d(TAG, "enableFlash. ON: " + onMillis + " OFF: " + offMillis + " gotCam= " + gotCam);

    if (!gotCam) {
      try {
        cam = Camera.open();
        if (CallerFlashlight.LOG) Log.d(TAG, "enableFlash: Camera opened successfully");
        gotCam = true;

      } catch (NullPointerException e) {
        e.printStackTrace();
        gotCam = false;
        try {
          Thread.sleep(onMillis + offMillis);
        } catch (InterruptedException e1) {
          e1.printStackTrace();
        }
        return;
      } catch (RuntimeException e) {
        if (CallerFlashlight.LOG) Log.d(TAG, "enableFlash: Unable to open the camera. Is already Opened??");
        gotCam = false;
        try {
          Thread.sleep(onMillis + offMillis);
        } catch (InterruptedException e1) {
          e1.printStackTrace();
        }
        return;

      }
      loadParameters();
    }

    try {
      cam.setParameters(pon);
      //      cam.startPreview();
    } catch (Exception e) {
      e.printStackTrace();
      if (CallerFlashlight.LOG) Log.d(TAG, "failed to set parameters");
      BugSenseHandler.sendException(e);
    }

    try {
      Thread.sleep(onMillis);

    } catch (InterruptedException e) {
      e.printStackTrace();
    }
    //disable flash

    try {
      cam.setParameters(poff);
      //      cam.stopPreview();
    } catch (Exception e) {
      e.printStackTrace();
      if (CallerFlashlight.LOG) Log.d(TAG, "failed to set parameters");
      BugSenseHandler.sendException(e);
    }

    try {
      Thread.sleep(offMillis);

    } catch (InterruptedException e) {
      e.printStackTrace();
    }


  }

  public void disableFlash() {
    if (CallerFlashlight.LOG) Log.d(TAG, "disableFlash");

    try {
      cam.setParameters(poff);
    } catch (Exception e) {
      e.printStackTrace();
      if (CallerFlashlight.LOG) Log.d(TAG, "failed to set parameters");
    }

  }


}
Java Source Code List
