E/AndroidRuntime: FATAL EXCEPTION: main, my app is keep on closing when camera button is clicked,2019 Community Moderator ElectionWhat is a NullPointerException, and how do I fix it?How to prevent a dialog from closing when a button is clickedAndroidRuntime(1130): FATAL EXCEPTION: mainE/AndroidRuntime﹕ FATAL EXCEPTION: mainE/AndroidRuntime﹕ FATAL EXCEPTION: mainAndroidRuntime FATAL EXCEPTION: MainAndroidRuntime﹕ FATAL EXCEPTION: main (libGDXE/AndroidRuntime: FATAL EXCEPTION: mainAndroidRuntime: FATAL EXCEPTION: mainE/AndroidRuntime﹕ FATAL EXCEPTION: mainE/AndroidRuntime: FATAL EXCEPTION: main (when clicking a button app crashes)

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E/AndroidRuntime: FATAL EXCEPTION: main, my app is keep on closing when camera button is clicked,



2019 Community Moderator ElectionWhat is a NullPointerException, and how do I fix it?How to prevent a dialog from closing when a button is clickedAndroidRuntime(1130): FATAL EXCEPTION: mainE/AndroidRuntime﹕ FATAL EXCEPTION: mainE/AndroidRuntime﹕ FATAL EXCEPTION: mainAndroidRuntime FATAL EXCEPTION: MainAndroidRuntime﹕ FATAL EXCEPTION: main (libGDXE/AndroidRuntime: FATAL EXCEPTION: mainAndroidRuntime: FATAL EXCEPTION: mainE/AndroidRuntime﹕ FATAL EXCEPTION: mainE/AndroidRuntime: FATAL EXCEPTION: main (when clicking a button app crashes)










-4















public class CameraActivity extends AppCompatActivity implements View.OnClickListener 



static 
 System.loadLibrary("opencv_java3");
 String TAG = "OpenCVLibrary";
 if(!OpenCVLoader.initDebug())
 Log.d(TAG,"OpenCv Not Successfully Loaded");
 else 
 Log.d(TAG,"OpenCv Successfully Loaded");
 

private static final int CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE = 100;
DBController db;
ImageProcessing imgproc;
Button btnProcess;
Cursor res;
ProgressDialog progressDialog;
ImageView imgTaken;

@Override
protected void onCreate(Bundle savedInstanceState) 
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_camera);
 // Objects.requireNonNull(getSupportActionBar()).setTitle("Camera");
 OpenCVLoader.initDebug();
 //Initialize View
 imgTaken = findViewById(R.id.imgTaken);
 btnProcess = findViewById(R.id.btnProcess);
 btnProcess.setEnabled(false);
 Button btnBack = findViewById(R.id.btnBack);
 //Create a Bitmap of the Image captured using camera
 //imgTaken.setImageBitmap(getTakenImage());
 //Set OnClick Listener
 btnBack.setOnClickListener(this);
 btnProcess.setOnClickListener(this);



public void process()
 final String TAG = "Image Processing";
 progressDialog = new ProgressDialog(CameraActivity.this);

 final ArrayList<ProcessResult> processResults = new ArrayList<>();
 db = new DBController(this);
 imgproc = new ImageProcessing();
 AsyncTask<String,String,String> task = new AsyncTask<String, String, String>() 
 @Override
 protected void onPreExecute() 
 super.onPreExecute();
 //Processing Dialog

 progressDialog.setMessage("Processing Image nPlease wait!...");
 progressDialog.setCancelable(false);
 progressDialog.show();

 

 @Override
 protected String doInBackground(String... strings) 
 /*Compute for the Match Percentage of the Image
 compareFeature Method
 First Params = Parasite Image
 Second Params = Image Taken

 Retrieve all Parasite Image in the Database
 */
 try 
 res = db.getAllData("tbl_succulentsinfo");
 Log.d(TAG, "" + res.getCount());

 if (res.moveToFirst()) 
 //String file = Environment.getExternalStorageDirectory().toString() + "/Android/data/com.thesis.app.parafish/files/" + res.getString(2);
 //Bitmap tmpbmp = BitmapFactory.decodeFile(file);
 int rate = 0;

 Log.d(TAG,rate+"");
 do 
 Log.e(TAG, res.getString(0) + "/" + res.getString(1) + "/" + res.getString(2)+ "/" + res.getString(3)+ "/" + res.getString(4));
 String imgpath = res.getString(3);
 String[] newimgpath = imgpath.split("/");
 String file = Environment.getExternalStorageDirectory().toString() + "/Android/data/com.example.geraldine.succulentidentifierapplication/files/" + newimgpath[1];
 Bitmap tmpbmp = BitmapFactory.decodeFile(file);

 ProcessResult result = new ProcessResult();

 if(tmpbmp!=null &&getTakenImage()!=null)

 rate = compareFeature(tmpbmp, getTakenImage());

 
 Log.d(TAG, rate + "");
 result.setSucculentID(res.getString(0));
 result.setResult(rate);
 processResults.add(result);

 while (res.moveToNext());
 
 
 catch (Exception e)
 e.printStackTrace();
 
 Log.d(TAG,"here");
 Collections.sort(processResults, new ArraySort());
 /*Rearrange the Top 3 Best Match. Result with the same Parasite ID with the highest Match
 remain while the other one will be remove from the list
 By doing this ArrayList with Index from 0-2 is now the Top 3 Match with different parasite id
 */
 for(int i = 0; i < processResults.size(); i++)
 Log.d("Top3",processResults.get(i).getResult().toString());
 
 int index = 0;
 for(int i = 0; i < processResults.size()-1; i++)
 ProcessResult result1 = processResults.get(i);
 for(int y=i+1;y < (processResults.size()-1)-i;y++)
 ProcessResult result2 = processResults.get(y);
 Log.d("Top3",result1.getSucculentID()+" Compared to "+result2.getSucculentID());
 if(result1.getSucculentID().equals(result2.getSucculentID()))
 processResults.remove(i+1);
 
 
 
 for(int i = 0; i < processResults.size(); i++)
 Log.d("Top3","ID="+processResults.get(i).getSucculentID()+" Rate:"+processResults.get(i).getResult().toString());
 
 return null;
 

 @Override
 protected void onPostExecute(String s) 
 super.onPostExecute(s);
 progressDialog.dismiss();

 //tempo
 Intent intent = new Intent(CameraActivity.this, Match.class);

 intent.putExtra("top1",processResults.get(0).getSucculentID());
 intent.putExtra("percentage1",processResults.get(0).getResult()+"");
 Log.d("Top1","ID="+processResults.get(0).getSucculentID()+" Rate:"+processResults.get(0).getResult().toString());

 intent.putExtra("top2",processResults.get(1).getSucculentID());
 intent.putExtra("percentage2",processResults.get(1).getResult()+"");
 Log.d("Top2","ID="+processResults.get(1).getSucculentID()+" Rate:"+processResults.get(1).getResult().toString());

 intent.putExtra("top3",processResults.get(2).getSucculentID());
 intent.putExtra("percentage3",processResults.get(2).getResult()+"");
 Log.d("Top3","ID="+processResults.get(2).getSucculentID()+" Rate:"+processResults.get(2).getResult().toString());

 intent.putExtra("from","ProcessImage");

 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
 getApplicationContext().startActivity(intent);
 
 ;
 task.execute("");


public Bitmap getTakenImage()
 //String path = getApplicationContext().getExternalFilesDir(null).toString()+"/pic.jpg";
 Bitmap bmp = ((BitmapDrawable) imgTaken.getDrawable()).getBitmap();
 return bmp;

@Override
public boolean onOptionsItemSelected(MenuItem item) 
 finish();
 return true;




@Override
public void onClick(View view) 
 switch (view.getId())
 case R.id.btnProcess:
 Cursor res;
 db = new DBController(this);

 process();
 break;
 case R.id.btnBack:
 Intent intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
 startActivityForResult(intent, CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE);
 //finish();
 break;
 default:
 break;
 


@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) 
 if (requestCode == CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE) 
 if (resultCode == RESULT_OK) 
 Bitmap bp = (Bitmap) Objects.requireNonNull(data.getExtras()).get("data");

 new Utility(CameraActivity.this).SaveTemp(bp,""+1);
 btnProcess.setEnabled(true);
 imgTaken.setImageBitmap(bp);
 else if (resultCode == RESULT_CANCELED) 
 // User cancelled the image capture
 else 
 // Image capture failed, advise user
 
 


public int compareFeature(Bitmap bmp1, Bitmap bmp2)




LOGCAT



E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.geraldine.succulentidentifierapplication, PID: 3652
java.lang.RuntimeException: Unable to start activity ComponentInfocom.example.geraldine.succulentidentifierapplication/com.example.geraldine.succulentidentifierapplication.CameraActivity: java.lang.NullPointerException
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2724)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2789)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1527)
at android.os.Handler.dispatchMessage(Handler.java:110)
at android.os.Looper.loop(Looper.java:203)
at android.app.ActivityThread.main(ActivityThread.java:6251)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1063)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:924)
Caused by: java.lang.NullPointerException
at java.util.Objects.requireNonNull(Objects.java:203)
at com.example.geraldine.succulentidentifierapplication.CameraActivity.onCreate(CameraActivity.java:67)
at android.app.Activity.performCreate(Activity.java:6666)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1118)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2677)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2789) 
at android.app.ActivityThread.-wrap12(ActivityThread.java) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1527) 
at android.os.Handler.dispatchMessage(Handler.java:110) 
at android.os.Looper.loop(Looper.java:203) 
at android.app.ActivityThread.main(ActivityThread.java:6251) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1063) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:924) 






android opencv







share|improve this question



















  • 2





    Possible duplicate of What is a NullPointerException, and how do I fix it?

    – Tamir Abutbul
    Mar 7 at 14:21











  • i'm having a problem with this Intent intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE); startActivityForResult(intent, CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE);

    – Geraldine Cruz
    Mar 8 at 2:13















-4















public class CameraActivity extends AppCompatActivity implements View.OnClickListener 



static 
 System.loadLibrary("opencv_java3");
 String TAG = "OpenCVLibrary";
 if(!OpenCVLoader.initDebug())
 Log.d(TAG,"OpenCv Not Successfully Loaded");
 else 
 Log.d(TAG,"OpenCv Successfully Loaded");
 

private static final int CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE = 100;
DBController db;
ImageProcessing imgproc;
Button btnProcess;
Cursor res;
ProgressDialog progressDialog;
ImageView imgTaken;

@Override
protected void onCreate(Bundle savedInstanceState) 
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_camera);
 // Objects.requireNonNull(getSupportActionBar()).setTitle("Camera");
 OpenCVLoader.initDebug();
 //Initialize View
 imgTaken = findViewById(R.id.imgTaken);
 btnProcess = findViewById(R.id.btnProcess);
 btnProcess.setEnabled(false);
 Button btnBack = findViewById(R.id.btnBack);
 //Create a Bitmap of the Image captured using camera
 //imgTaken.setImageBitmap(getTakenImage());
 //Set OnClick Listener
 btnBack.setOnClickListener(this);
 btnProcess.setOnClickListener(this);



public void process()
 final String TAG = "Image Processing";
 progressDialog = new ProgressDialog(CameraActivity.this);

 final ArrayList<ProcessResult> processResults = new ArrayList<>();
 db = new DBController(this);
 imgproc = new ImageProcessing();
 AsyncTask<String,String,String> task = new AsyncTask<String, String, String>() 
 @Override
 protected void onPreExecute() 
 super.onPreExecute();
 //Processing Dialog

 progressDialog.setMessage("Processing Image nPlease wait!...");
 progressDialog.setCancelable(false);
 progressDialog.show();

 

 @Override
 protected String doInBackground(String... strings) 
 /*Compute for the Match Percentage of the Image
 compareFeature Method
 First Params = Parasite Image
 Second Params = Image Taken

 Retrieve all Parasite Image in the Database
 */
 try 
 res = db.getAllData("tbl_succulentsinfo");
 Log.d(TAG, "" + res.getCount());

 if (res.moveToFirst()) 
 //String file = Environment.getExternalStorageDirectory().toString() + "/Android/data/com.thesis.app.parafish/files/" + res.getString(2);
 //Bitmap tmpbmp = BitmapFactory.decodeFile(file);
 int rate = 0;

 Log.d(TAG,rate+"");
 do 
 Log.e(TAG, res.getString(0) + "/" + res.getString(1) + "/" + res.getString(2)+ "/" + res.getString(3)+ "/" + res.getString(4));
 String imgpath = res.getString(3);
 String[] newimgpath = imgpath.split("/");
 String file = Environment.getExternalStorageDirectory().toString() + "/Android/data/com.example.geraldine.succulentidentifierapplication/files/" + newimgpath[1];
 Bitmap tmpbmp = BitmapFactory.decodeFile(file);

 ProcessResult result = new ProcessResult();

 if(tmpbmp!=null &&getTakenImage()!=null)

 rate = compareFeature(tmpbmp, getTakenImage());

 
 Log.d(TAG, rate + "");
 result.setSucculentID(res.getString(0));
 result.setResult(rate);
 processResults.add(result);

 while (res.moveToNext());
 
 
 catch (Exception e)
 e.printStackTrace();
 
 Log.d(TAG,"here");
 Collections.sort(processResults, new ArraySort());
 /*Rearrange the Top 3 Best Match. Result with the same Parasite ID with the highest Match
 remain while the other one will be remove from the list
 By doing this ArrayList with Index from 0-2 is now the Top 3 Match with different parasite id
 */
 for(int i = 0; i < processResults.size(); i++)
 Log.d("Top3",processResults.get(i).getResult().toString());
 
 int index = 0;
 for(int i = 0; i < processResults.size()-1; i++)
 ProcessResult result1 = processResults.get(i);
 for(int y=i+1;y < (processResults.size()-1)-i;y++)
 ProcessResult result2 = processResults.get(y);
 Log.d("Top3",result1.getSucculentID()+" Compared to "+result2.getSucculentID());
 if(result1.getSucculentID().equals(result2.getSucculentID()))
 processResults.remove(i+1);
 
 
 
 for(int i = 0; i < processResults.size(); i++)
 Log.d("Top3","ID="+processResults.get(i).getSucculentID()+" Rate:"+processResults.get(i).getResult().toString());
 
 return null;
 

 @Override
 protected void onPostExecute(String s) 
 super.onPostExecute(s);
 progressDialog.dismiss();

 //tempo
 Intent intent = new Intent(CameraActivity.this, Match.class);

 intent.putExtra("top1",processResults.get(0).getSucculentID());
 intent.putExtra("percentage1",processResults.get(0).getResult()+"");
 Log.d("Top1","ID="+processResults.get(0).getSucculentID()+" Rate:"+processResults.get(0).getResult().toString());

 intent.putExtra("top2",processResults.get(1).getSucculentID());
 intent.putExtra("percentage2",processResults.get(1).getResult()+"");
 Log.d("Top2","ID="+processResults.get(1).getSucculentID()+" Rate:"+processResults.get(1).getResult().toString());

 intent.putExtra("top3",processResults.get(2).getSucculentID());
 intent.putExtra("percentage3",processResults.get(2).getResult()+"");
 Log.d("Top3","ID="+processResults.get(2).getSucculentID()+" Rate:"+processResults.get(2).getResult().toString());

 intent.putExtra("from","ProcessImage");

 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
 getApplicationContext().startActivity(intent);
 
 ;
 task.execute("");


public Bitmap getTakenImage()
 //String path = getApplicationContext().getExternalFilesDir(null).toString()+"/pic.jpg";
 Bitmap bmp = ((BitmapDrawable) imgTaken.getDrawable()).getBitmap();
 return bmp;

@Override
public boolean onOptionsItemSelected(MenuItem item) 
 finish();
 return true;




@Override
public void onClick(View view) 
 switch (view.getId())
 case R.id.btnProcess:
 Cursor res;
 db = new DBController(this);

 process();
 break;
 case R.id.btnBack:
 Intent intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
 startActivityForResult(intent, CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE);
 //finish();
 break;
 default:
 break;
 


@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) 
 if (requestCode == CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE) 
 if (resultCode == RESULT_OK) 
 Bitmap bp = (Bitmap) Objects.requireNonNull(data.getExtras()).get("data");

 new Utility(CameraActivity.this).SaveTemp(bp,""+1);
 btnProcess.setEnabled(true);
 imgTaken.setImageBitmap(bp);
 else if (resultCode == RESULT_CANCELED) 
 // User cancelled the image capture
 else 
 // Image capture failed, advise user
 
 


public int compareFeature(Bitmap bmp1, Bitmap bmp2)




LOGCAT



E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.geraldine.succulentidentifierapplication, PID: 3652
java.lang.RuntimeException: Unable to start activity ComponentInfocom.example.geraldine.succulentidentifierapplication/com.example.geraldine.succulentidentifierapplication.CameraActivity: java.lang.NullPointerException
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2724)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2789)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1527)
at android.os.Handler.dispatchMessage(Handler.java:110)
at android.os.Looper.loop(Looper.java:203)
at android.app.ActivityThread.main(ActivityThread.java:6251)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1063)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:924)
Caused by: java.lang.NullPointerException
at java.util.Objects.requireNonNull(Objects.java:203)
at com.example.geraldine.succulentidentifierapplication.CameraActivity.onCreate(CameraActivity.java:67)
at android.app.Activity.performCreate(Activity.java:6666)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1118)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2677)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2789) 
at android.app.ActivityThread.-wrap12(ActivityThread.java) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1527) 
at android.os.Handler.dispatchMessage(Handler.java:110) 
at android.os.Looper.loop(Looper.java:203) 
at android.app.ActivityThread.main(ActivityThread.java:6251) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1063) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:924) 






android opencv







share|improve this question



















  • 2





    Possible duplicate of What is a NullPointerException, and how do I fix it?

    – Tamir Abutbul
    Mar 7 at 14:21











  • i'm having a problem with this Intent intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE); startActivityForResult(intent, CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE);

    – Geraldine Cruz
    Mar 8 at 2:13













-4












-4








-4








public class CameraActivity extends AppCompatActivity implements View.OnClickListener 



static 
 System.loadLibrary("opencv_java3");
 String TAG = "OpenCVLibrary";
 if(!OpenCVLoader.initDebug())
 Log.d(TAG,"OpenCv Not Successfully Loaded");
 else 
 Log.d(TAG,"OpenCv Successfully Loaded");
 

private static final int CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE = 100;
DBController db;
ImageProcessing imgproc;
Button btnProcess;
Cursor res;
ProgressDialog progressDialog;
ImageView imgTaken;

@Override
protected void onCreate(Bundle savedInstanceState) 
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_camera);
 // Objects.requireNonNull(getSupportActionBar()).setTitle("Camera");
 OpenCVLoader.initDebug();
 //Initialize View
 imgTaken = findViewById(R.id.imgTaken);
 btnProcess = findViewById(R.id.btnProcess);
 btnProcess.setEnabled(false);
 Button btnBack = findViewById(R.id.btnBack);
 //Create a Bitmap of the Image captured using camera
 //imgTaken.setImageBitmap(getTakenImage());
 //Set OnClick Listener
 btnBack.setOnClickListener(this);
 btnProcess.setOnClickListener(this);



public void process()
 final String TAG = "Image Processing";
 progressDialog = new ProgressDialog(CameraActivity.this);

 final ArrayList<ProcessResult> processResults = new ArrayList<>();
 db = new DBController(this);
 imgproc = new ImageProcessing();
 AsyncTask<String,String,String> task = new AsyncTask<String, String, String>() 
 @Override
 protected void onPreExecute() 
 super.onPreExecute();
 //Processing Dialog

 progressDialog.setMessage("Processing Image nPlease wait!...");
 progressDialog.setCancelable(false);
 progressDialog.show();

 

 @Override
 protected String doInBackground(String... strings) 
 /*Compute for the Match Percentage of the Image
 compareFeature Method
 First Params = Parasite Image
 Second Params = Image Taken

 Retrieve all Parasite Image in the Database
 */
 try 
 res = db.getAllData("tbl_succulentsinfo");
 Log.d(TAG, "" + res.getCount());

 if (res.moveToFirst()) 
 //String file = Environment.getExternalStorageDirectory().toString() + "/Android/data/com.thesis.app.parafish/files/" + res.getString(2);
 //Bitmap tmpbmp = BitmapFactory.decodeFile(file);
 int rate = 0;

 Log.d(TAG,rate+"");
 do 
 Log.e(TAG, res.getString(0) + "/" + res.getString(1) + "/" + res.getString(2)+ "/" + res.getString(3)+ "/" + res.getString(4));
 String imgpath = res.getString(3);
 String[] newimgpath = imgpath.split("/");
 String file = Environment.getExternalStorageDirectory().toString() + "/Android/data/com.example.geraldine.succulentidentifierapplication/files/" + newimgpath[1];
 Bitmap tmpbmp = BitmapFactory.decodeFile(file);

 ProcessResult result = new ProcessResult();

 if(tmpbmp!=null &&getTakenImage()!=null)

 rate = compareFeature(tmpbmp, getTakenImage());

 
 Log.d(TAG, rate + "");
 result.setSucculentID(res.getString(0));
 result.setResult(rate);
 processResults.add(result);

 while (res.moveToNext());
 
 
 catch (Exception e)
 e.printStackTrace();
 
 Log.d(TAG,"here");
 Collections.sort(processResults, new ArraySort());
 /*Rearrange the Top 3 Best Match. Result with the same Parasite ID with the highest Match
 remain while the other one will be remove from the list
 By doing this ArrayList with Index from 0-2 is now the Top 3 Match with different parasite id
 */
 for(int i = 0; i < processResults.size(); i++)
 Log.d("Top3",processResults.get(i).getResult().toString());
 
 int index = 0;
 for(int i = 0; i < processResults.size()-1; i++)
 ProcessResult result1 = processResults.get(i);
 for(int y=i+1;y < (processResults.size()-1)-i;y++)
 ProcessResult result2 = processResults.get(y);
 Log.d("Top3",result1.getSucculentID()+" Compared to "+result2.getSucculentID());
 if(result1.getSucculentID().equals(result2.getSucculentID()))
 processResults.remove(i+1);
 
 
 
 for(int i = 0; i < processResults.size(); i++)
 Log.d("Top3","ID="+processResults.get(i).getSucculentID()+" Rate:"+processResults.get(i).getResult().toString());
 
 return null;
 

 @Override
 protected void onPostExecute(String s) 
 super.onPostExecute(s);
 progressDialog.dismiss();

 //tempo
 Intent intent = new Intent(CameraActivity.this, Match.class);

 intent.putExtra("top1",processResults.get(0).getSucculentID());
 intent.putExtra("percentage1",processResults.get(0).getResult()+"");
 Log.d("Top1","ID="+processResults.get(0).getSucculentID()+" Rate:"+processResults.get(0).getResult().toString());

 intent.putExtra("top2",processResults.get(1).getSucculentID());
 intent.putExtra("percentage2",processResults.get(1).getResult()+"");
 Log.d("Top2","ID="+processResults.get(1).getSucculentID()+" Rate:"+processResults.get(1).getResult().toString());

 intent.putExtra("top3",processResults.get(2).getSucculentID());
 intent.putExtra("percentage3",processResults.get(2).getResult()+"");
 Log.d("Top3","ID="+processResults.get(2).getSucculentID()+" Rate:"+processResults.get(2).getResult().toString());

 intent.putExtra("from","ProcessImage");

 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
 getApplicationContext().startActivity(intent);
 
 ;
 task.execute("");


public Bitmap getTakenImage()
 //String path = getApplicationContext().getExternalFilesDir(null).toString()+"/pic.jpg";
 Bitmap bmp = ((BitmapDrawable) imgTaken.getDrawable()).getBitmap();
 return bmp;

@Override
public boolean onOptionsItemSelected(MenuItem item) 
 finish();
 return true;




@Override
public void onClick(View view) 
 switch (view.getId())
 case R.id.btnProcess:
 Cursor res;
 db = new DBController(this);

 process();
 break;
 case R.id.btnBack:
 Intent intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
 startActivityForResult(intent, CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE);
 //finish();
 break;
 default:
 break;
 


@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) 
 if (requestCode == CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE) 
 if (resultCode == RESULT_OK) 
 Bitmap bp = (Bitmap) Objects.requireNonNull(data.getExtras()).get("data");

 new Utility(CameraActivity.this).SaveTemp(bp,""+1);
 btnProcess.setEnabled(true);
 imgTaken.setImageBitmap(bp);
 else if (resultCode == RESULT_CANCELED) 
 // User cancelled the image capture
 else 
 // Image capture failed, advise user
 
 


public int compareFeature(Bitmap bmp1, Bitmap bmp2)




LOGCAT



E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.geraldine.succulentidentifierapplication, PID: 3652
java.lang.RuntimeException: Unable to start activity ComponentInfocom.example.geraldine.succulentidentifierapplication/com.example.geraldine.succulentidentifierapplication.CameraActivity: java.lang.NullPointerException
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2724)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2789)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1527)
at android.os.Handler.dispatchMessage(Handler.java:110)
at android.os.Looper.loop(Looper.java:203)
at android.app.ActivityThread.main(ActivityThread.java:6251)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1063)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:924)
Caused by: java.lang.NullPointerException
at java.util.Objects.requireNonNull(Objects.java:203)
at com.example.geraldine.succulentidentifierapplication.CameraActivity.onCreate(CameraActivity.java:67)
at android.app.Activity.performCreate(Activity.java:6666)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1118)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2677)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2789) 
at android.app.ActivityThread.-wrap12(ActivityThread.java) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1527) 
at android.os.Handler.dispatchMessage(Handler.java:110) 
at android.os.Looper.loop(Looper.java:203) 
at android.app.ActivityThread.main(ActivityThread.java:6251) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1063) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:924) 






android opencv







share|improve this question
















public class CameraActivity extends AppCompatActivity implements View.OnClickListener 



static 
 System.loadLibrary("opencv_java3");
 String TAG = "OpenCVLibrary";
 if(!OpenCVLoader.initDebug())
 Log.d(TAG,"OpenCv Not Successfully Loaded");
 else 
 Log.d(TAG,"OpenCv Successfully Loaded");
 

private static final int CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE = 100;
DBController db;
ImageProcessing imgproc;
Button btnProcess;
Cursor res;
ProgressDialog progressDialog;
ImageView imgTaken;

@Override
protected void onCreate(Bundle savedInstanceState) 
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_camera);
 // Objects.requireNonNull(getSupportActionBar()).setTitle("Camera");
 OpenCVLoader.initDebug();
 //Initialize View
 imgTaken = findViewById(R.id.imgTaken);
 btnProcess = findViewById(R.id.btnProcess);
 btnProcess.setEnabled(false);
 Button btnBack = findViewById(R.id.btnBack);
 //Create a Bitmap of the Image captured using camera
 //imgTaken.setImageBitmap(getTakenImage());
 //Set OnClick Listener
 btnBack.setOnClickListener(this);
 btnProcess.setOnClickListener(this);



public void process()
 final String TAG = "Image Processing";
 progressDialog = new ProgressDialog(CameraActivity.this);

 final ArrayList<ProcessResult> processResults = new ArrayList<>();
 db = new DBController(this);
 imgproc = new ImageProcessing();
 AsyncTask<String,String,String> task = new AsyncTask<String, String, String>() 
 @Override
 protected void onPreExecute() 
 super.onPreExecute();
 //Processing Dialog

 progressDialog.setMessage("Processing Image nPlease wait!...");
 progressDialog.setCancelable(false);
 progressDialog.show();

 

 @Override
 protected String doInBackground(String... strings) 
 /*Compute for the Match Percentage of the Image
 compareFeature Method
 First Params = Parasite Image
 Second Params = Image Taken

 Retrieve all Parasite Image in the Database
 */
 try 
 res = db.getAllData("tbl_succulentsinfo");
 Log.d(TAG, "" + res.getCount());

 if (res.moveToFirst()) 
 //String file = Environment.getExternalStorageDirectory().toString() + "/Android/data/com.thesis.app.parafish/files/" + res.getString(2);
 //Bitmap tmpbmp = BitmapFactory.decodeFile(file);
 int rate = 0;

 Log.d(TAG,rate+"");
 do 
 Log.e(TAG, res.getString(0) + "/" + res.getString(1) + "/" + res.getString(2)+ "/" + res.getString(3)+ "/" + res.getString(4));
 String imgpath = res.getString(3);
 String[] newimgpath = imgpath.split("/");
 String file = Environment.getExternalStorageDirectory().toString() + "/Android/data/com.example.geraldine.succulentidentifierapplication/files/" + newimgpath[1];
 Bitmap tmpbmp = BitmapFactory.decodeFile(file);

 ProcessResult result = new ProcessResult();

 if(tmpbmp!=null &&getTakenImage()!=null)

 rate = compareFeature(tmpbmp, getTakenImage());

 
 Log.d(TAG, rate + "");
 result.setSucculentID(res.getString(0));
 result.setResult(rate);
 processResults.add(result);

 while (res.moveToNext());
 
 
 catch (Exception e)
 e.printStackTrace();
 
 Log.d(TAG,"here");
 Collections.sort(processResults, new ArraySort());
 /*Rearrange the Top 3 Best Match. Result with the same Parasite ID with the highest Match
 remain while the other one will be remove from the list
 By doing this ArrayList with Index from 0-2 is now the Top 3 Match with different parasite id
 */
 for(int i = 0; i < processResults.size(); i++)
 Log.d("Top3",processResults.get(i).getResult().toString());
 
 int index = 0;
 for(int i = 0; i < processResults.size()-1; i++)
 ProcessResult result1 = processResults.get(i);
 for(int y=i+1;y < (processResults.size()-1)-i;y++)
 ProcessResult result2 = processResults.get(y);
 Log.d("Top3",result1.getSucculentID()+" Compared to "+result2.getSucculentID());
 if(result1.getSucculentID().equals(result2.getSucculentID()))
 processResults.remove(i+1);
 
 
 
 for(int i = 0; i < processResults.size(); i++)
 Log.d("Top3","ID="+processResults.get(i).getSucculentID()+" Rate:"+processResults.get(i).getResult().toString());
 
 return null;
 

 @Override
 protected void onPostExecute(String s) 
 super.onPostExecute(s);
 progressDialog.dismiss();

 //tempo
 Intent intent = new Intent(CameraActivity.this, Match.class);

 intent.putExtra("top1",processResults.get(0).getSucculentID());
 intent.putExtra("percentage1",processResults.get(0).getResult()+"");
 Log.d("Top1","ID="+processResults.get(0).getSucculentID()+" Rate:"+processResults.get(0).getResult().toString());

 intent.putExtra("top2",processResults.get(1).getSucculentID());
 intent.putExtra("percentage2",processResults.get(1).getResult()+"");
 Log.d("Top2","ID="+processResults.get(1).getSucculentID()+" Rate:"+processResults.get(1).getResult().toString());

 intent.putExtra("top3",processResults.get(2).getSucculentID());
 intent.putExtra("percentage3",processResults.get(2).getResult()+"");
 Log.d("Top3","ID="+processResults.get(2).getSucculentID()+" Rate:"+processResults.get(2).getResult().toString());

 intent.putExtra("from","ProcessImage");

 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
 getApplicationContext().startActivity(intent);
 
 ;
 task.execute("");


public Bitmap getTakenImage()
 //String path = getApplicationContext().getExternalFilesDir(null).toString()+"/pic.jpg";
 Bitmap bmp = ((BitmapDrawable) imgTaken.getDrawable()).getBitmap();
 return bmp;

@Override
public boolean onOptionsItemSelected(MenuItem item) 
 finish();
 return true;




@Override
public void onClick(View view) 
 switch (view.getId())
 case R.id.btnProcess:
 Cursor res;
 db = new DBController(this);

 process();
 break;
 case R.id.btnBack:
 Intent intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
 startActivityForResult(intent, CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE);
 //finish();
 break;
 default:
 break;
 


@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) 
 if (requestCode == CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE) 
 if (resultCode == RESULT_OK) 
 Bitmap bp = (Bitmap) Objects.requireNonNull(data.getExtras()).get("data");

 new Utility(CameraActivity.this).SaveTemp(bp,""+1);
 btnProcess.setEnabled(true);
 imgTaken.setImageBitmap(bp);
 else if (resultCode == RESULT_CANCELED) 
 // User cancelled the image capture
 else 
 // Image capture failed, advise user
 
 


public int compareFeature(Bitmap bmp1, Bitmap bmp2)




LOGCAT



E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.geraldine.succulentidentifierapplication, PID: 3652
java.lang.RuntimeException: Unable to start activity ComponentInfocom.example.geraldine.succulentidentifierapplication/com.example.geraldine.succulentidentifierapplication.CameraActivity: java.lang.NullPointerException
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2724)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2789)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1527)
at android.os.Handler.dispatchMessage(Handler.java:110)
at android.os.Looper.loop(Looper.java:203)
at android.app.ActivityThread.main(ActivityThread.java:6251)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1063)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:924)
Caused by: java.lang.NullPointerException
at java.util.Objects.requireNonNull(Objects.java:203)
at com.example.geraldine.succulentidentifierapplication.CameraActivity.onCreate(CameraActivity.java:67)
at android.app.Activity.performCreate(Activity.java:6666)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1118)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2677)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2789) 
at android.app.ActivityThread.-wrap12(ActivityThread.java) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1527) 
at android.os.Handler.dispatchMessage(Handler.java:110) 
at android.os.Looper.loop(Looper.java:203) 
at android.app.ActivityThread.main(ActivityThread.java:6251) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1063) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:924) 






android opencv




android opencv






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Mar 8 at 2:14







Geraldine Cruz

















asked Mar 7 at 14:19









Geraldine CruzGeraldine Cruz

11




11







  • 2





    Possible duplicate of What is a NullPointerException, and how do I fix it?

    – Tamir Abutbul
    Mar 7 at 14:21











  • i'm having a problem with this Intent intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE); startActivityForResult(intent, CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE);

    – Geraldine Cruz
    Mar 8 at 2:13












  • 2





    Possible duplicate of What is a NullPointerException, and how do I fix it?

    – Tamir Abutbul
    Mar 7 at 14:21











  • i'm having a problem with this Intent intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE); startActivityForResult(intent, CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE);

    – Geraldine Cruz
    Mar 8 at 2:13







2




2





Possible duplicate of What is a NullPointerException, and how do I fix it?

– Tamir Abutbul
Mar 7 at 14:21





Possible duplicate of What is a NullPointerException, and how do I fix it?

– Tamir Abutbul
Mar 7 at 14:21













i'm having a problem with this Intent intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE); startActivityForResult(intent, CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE);

– Geraldine Cruz
Mar 8 at 2:13





i'm having a problem with this Intent intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE); startActivityForResult(intent, CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE);

– Geraldine Cruz
Mar 8 at 2:13












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