Confusing cursor index out of bounds exception

Confusing cursor index out of bounds exception - java

I have a database that contains level and stage of the game and the problem is every time I call method getId(), getLevel() or getStage() in my code, it's just throws CursorIndexOutOfBoundsException. I have 5 indices of my database but it tells me that only 0 indices are available. This is the code:
Database helper class:
public class DatabaseGame extends SQLiteOpenHelper {
private static final String DATABASE_NAME = "DB2.db";
private static final int SCHEMA_VERSION = 6;
public DatabaseGame(Context context) {
super(context, DATABASE_NAME, null, SCHEMA_VERSION);
}
#Override
public void onCreate(SQLiteDatabase db) {
db.execSQL("CREATE TABLE save_progress (ID INTEGER PRIMARY KEY NOT NULL, LEVEL VARCHAR(3), STAGE1 VARCHAR(3), STAGE2 VARCHAR(3), STAGE3 VARCHAR(3));");
}
#Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
// TODO Auto-generated method stub
}
public void insert(String level, String stage1, String stage2, String stage3) {
ContentValues carry = new ContentValues();
carry.put("ID", 1);
carry.put("LEVEL", level);
carry.put("STAGE1", stage1);
carry.put("STAGE2", stage2);
carry.put("STAGE3", stage3);
getWritableDatabase().insert("save_progress", null, carry);
}
public void update(int id, String level, String stage1, String stage2,
String stage3) {
getWritableDatabase().execSQL(
"UPDATE save_progress SET LEVEL = '" + level + "', STAGE1 = '"
+ stage1 + "', STAGE2 = '" + stage2 + "', STAGE3 = '"
+ stage3 + "' WHERE ID = " + id + ";");
}
public Cursor getAll() {
return (getReadableDatabase().rawQuery("SELECT * FROM save_progress",
null));
}
public String getId(Cursor c) {
return (c.getString(0));
}
public String getLevel(Cursor c) {
return (c.getString(1));
}
public String getStage(Cursor c, int level) {
return (c.getString(level + 1));
}
}
Main class. The error occures when I access Integer.parseInt(db.getLevel(select)):
public class Level extends Activity {
DatabaseGame db = null;
Handler handlerTimer = new Handler();
ImageButton lv1, lv2, lv3;
Animation b1, b2, b3;
Cursor select = null;
#Override
protected void onCreate(Bundle savedInstanceState) {
setContentView(R.layout.level);
b1 = AnimationUtils.loadAnimation(this, R.anim.button);
b2 = AnimationUtils.loadAnimation(this, R.anim.button);
b3 = AnimationUtils.loadAnimation(this, R.anim.button);
db = new DatabaseGame(this);
select = db.getAll();
if(select == null) {
db.insert("1", "1", "1", "1");
}
initAnimation();
super.onCreate(savedInstanceState);
}
#Override
protected void onPause() {
super.onPause();
db.close();
finish();
}
public void initAnimation() {
Thread animated = new Thread() {
public void run() {
try {
lv1 = (ImageButton) findViewById(R.id.level1);
lv1.setImageResource(R.drawable.level1_b);
lv1.setAnimation(b1);
lv1.startAnimation(b1);
lv1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Bundle trans = new Bundle();
trans.putInt("level", 1);
Intent change = new Intent("com.idncd.indonesiaku.STAGE");
change.putExtras(trans);
startActivity(change);
}
});
handlerTimer.postDelayed(new Runnable() {
public void run() {
if (Integer.parseInt(db.getLevel(select)) > 1) {
lv2 = (ImageButton) findViewById(R.id.level2);
lv2.setImageResource(R.drawable.level2_b);
lv2.setAnimation(b2);
lv2.startAnimation(b2);
lv2.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Bundle trans = new Bundle();
trans.putInt("level", 1);
Intent change = new Intent("com.idncd.indonesiaku.STAGE");
change.putExtras(trans);
startActivity(change);
}
});
} else {
lv2 = (ImageButton) findViewById(R.id.level2);
lv2.setImageResource(R.drawable.level2_un_b);
lv2.setAnimation(b2);
lv2.startAnimation(b2);
lv2.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
}
});
}
}
}, 300);
handlerTimer.postDelayed(new Runnable() {
public void run() {
if (Integer.parseInt(db.getLevel(select)) > 2) {
lv3 = (ImageButton) findViewById(R.id.level3);
lv3.setImageResource(R.drawable.level3_b);
lv3.setAnimation(b3);
lv3.startAnimation(b3);
lv3.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Bundle trans = new Bundle();
trans.putInt("level", 1);
Intent change = new Intent("com.idncd.indonesiaku.STAGE");
change.putExtras(trans);
startActivity(change);
}
});
} else {
lv3 = (ImageButton) findViewById(R.id.level3);
lv3.setImageResource(R.drawable.level3_un_b);
lv3.setAnimation(b3);
lv3.startAnimation(b3);
lv3.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
}
});
}
}
}, 600);
} catch (Exception e) {
e.printStackTrace();
}
}
};
animated.start();
}
#Override
public boolean onKeyUp(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK) {
Intent menu = new Intent("com.idncd.indonesiaku.MAINMENU");
startActivity(menu);
return true;
} else {
return super.onKeyUp(keyCode, event);
}
}
}
Thank you for your help.

You have to firstly set location of Cursor refrence before use it , Use moveToFirsrt(), moveToLast() etc..

The question is a little unclear, but I assume you mean that SELECT * doesn't return all the columns you have in your onCreate().
You have updated SCHEMA_VERSION but your onUpgrade() is empty. Therefore the database hasn't actually been updated, though the framework thinks so since onUpgrade() returned successfully.
Clean your app data or uninstall it to remove the old database file. Then when the application is run again, your database helper onCreate() recreates it correctly.

Related

Why does my Java code for Android App Generate 2 threads?

I am new to Java coding for android. I need to understand why does my code generate 2 threads. The problem that can be created over here is perhaps competition for Camera Resources which results in the camera not being used by the user. Kindly suggest a solution to my problem as well.
I have also attached a picture where there are 2 requests for a new activity. There is also proof by having 2 thread IDs active.
EDIT for clarity:
I want to generate a new thread which solely handles the activity to record the video, no other thread should be doing it. But there are two that are performing their own activity to record video.
public class MainActivity extends AppCompatActivity implements SensorEventListener/*, ActivityCompat.OnRequestPermissionsResultCallback*/ {
private Camera c;
private MainActivity reference_this = this;
private BooleanObject recorded_video = new BooleanObject("recorded_video",false);
private BooleanObject recorded_motions_chest = new BooleanObject("recorded_motions_chest", false);
private ChangeListener listener_change;
public void setListener(ChangeListener arg_listener_change) {
listener_change = arg_listener_change;
}
public interface ChangeListener {
void onChange(String arg_name);
}
public void set_recorded_video(boolean arg_recorded_video) {
recorded_video.set_value(arg_recorded_video);
if (listener_change != null) { listener_change.onChange(recorded_video.get_name()); }
}
public void set_recorded_motions_chest(boolean arg_recorded_motions_chest) {
recorded_motions_chest.set_value(arg_recorded_motions_chest);
if (listener_change != null) { listener_change.onChange(recorded_motions_chest.get_name()); }
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
if (!(getApplicationContext().getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA))) {
this.finish();
System.exit(0);
}
System.loadLibrary(Core.NATIVE_LIBRARY_NAME);
this.setListener(new MainActivity.ChangeListener() {
#Override
public void onChange(String arg_name) {
Log.i("CHNG", "fired");
if (arg_name.equals(recorded_video.get_name())) {
VideoCapture video_capture = new VideoCapture();
video_capture.open(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS) + "/video_finger.mp4");
Mat frame = new Mat();
int length_video = (int) video_capture.get(Videoio.CAP_PROP_FRAME_COUNT);
int rate_frame = (int) video_capture.get(Videoio.CAP_PROP_FPS);
while (true) {
video_capture.read(frame);
Size size_img = frame.size();
Log.i("MAT", String.valueOf(size_img.width) + ' ' + String.valueOf(size_img.height));
}
}
else if (arg_name.equals(recorded_motions_chest.get_name())) {}
}
});
// new Thread(new Runnable() {
// public void run() {
Button button_symptoms = (Button) findViewById(R.id.button_symptoms);
Button button_upload_signs = (Button) findViewById(R.id.button_upload_signs);
Button button_measure_heart_rate = (Button) findViewById(R.id.button_measure_heart_rate);
Button button_measure_respiratory_rate = (Button) findViewById(R.id.button_measure_respiratory_rate);
CameraView cv1 = new CameraView(getApplicationContext(), reference_this);
FrameLayout view_camera = (FrameLayout) findViewById(R.id.view_camera);
view_camera.addView(cv1);
TextView finger_on_sensor = (TextView) findViewById(R.id.text_finger_on_sensor);
finger_on_sensor.setVisibility(View.INVISIBLE);
finger_on_sensor.setOnTouchListener(new View.OnTouchListener() {
#Override
public boolean onTouch (View arg_view, MotionEvent arg_me){
finger_on_sensor.setVisibility(View.INVISIBLE);
/*GENERATING THREADS OVER HERE*/ new Thread(new Runnable() {
public void run() {
File file_video = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS) + "/video_finger.mp4");
// final int REQUEST_WRITE_PERMISSION = 786;
final int VIDEO_CAPTURE = 1;
StrictMode.VmPolicy.Builder builder = new StrictMode.VmPolicy.Builder();
StrictMode.setVmPolicy(builder.build());
Intent intent_record_video = new Intent(MediaStore.ACTION_VIDEO_CAPTURE);
intent_record_video.putExtra(MediaStore.EXTRA_DURATION_LIMIT, 45);
Uri fileUri = FileProvider.getUriForFile(MainActivity.this, "com.example.cse535a1.provider", file_video);
intent_record_video.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);
if (intent_record_video.resolveActivity(getPackageManager()) != null) {
Log.i("CAM", "CAM requeted");
Log.i("Thread ID", String.valueOf(Thread.currentThread().getId()));
startActivityForResult(intent_record_video, VIDEO_CAPTURE);
// reference_this.set_recorded_video(true);
}
}
}).start();
return true;
}
});
button_symptoms.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick (View arg_view){
Intent intent = new Intent(getApplicationContext(), Loggin_symptoms.class);
startActivity(intent);
}
});
button_upload_signs.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick (View arg_view){
}
});
button_measure_heart_rate.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick (View arg_view){ finger_on_sensor.setVisibility(View.VISIBLE); }
});
button_measure_respiratory_rate.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View arg_view) {
SensorManager manager_sensor = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
Sensor sensor_accelerometer = manager_sensor.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
manager_sensor.registerListener(MainActivity.this, sensor_accelerometer, SensorManager.SENSOR_DELAY_NORMAL);
}
});
// }}).start();
}
public void setCam(Camera arg_camera) { c = arg_camera; }
#Override
public void onSensorChanged(SensorEvent arg_event) {
float x = arg_event.values[0];
float y = arg_event.values[1];
float z = arg_event.values[2];
Log.i("ACCELEROMETER", String.valueOf(x) + ' ' + String.valueOf(y) + ' ' + String.valueOf(z));
}
#Override
public void onAccuracyChanged(Sensor arg_sensor, int arg_accuracy) {
}
#Override
protected void onPause() {
super.onPause();
c.unlock();
// Log.i("CAM", "unlocked");
// if (c != null) {
// c.stopPreview();
//// c.release();
//// c = null;
// }
}
#Override
protected void onResume() {
super.onResume();
if (c != null) c.lock();
// if (c != null) {
// c.stopPreview();
// c.release();
// c = null;
/// }
// cv1 = new CameraView(getApplicationContext(), this);
// view_camera.addView(cv1);
}
#Override
protected void onDestroy() {
if (c != null) {
// c.unlock();
c.stopPreview();
c.release();
c = null;
}
super.onDestroy();
}
private static class BooleanObject {
private String name = "BooleanObject";
private boolean value = false;
public BooleanObject(String arg_name, boolean arg_value) {
name = arg_name;
value = arg_value;
}
public String set_name(String arg_name) {
name = arg_name;
return name;
}
public boolean set_value(boolean arg_value) {
value = arg_value;
return value;
}
public String get_name() { return name; }
public boolean get_value() { return value; }
};
}

Every time you tap on TextView, as you are using onTouchListener, it will be fired twice, once for ACTION_DOWN and ACTION_UP, so check for ACTION_UP as in
finger_on_sensor.setOnTouchListener(new View.OnTouchListener() {
#Override
public boolean onTouch (View arg_view, MotionEvent arg_me){
if(arg_me.getAction() == MotionEvent.ACTION_UP){ //add this condition
finger_on_sensor.setVisibility(View.INVISIBLE);
new Thread(new Runnable() {
public void run() {
File file_video = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS) + "/video_finger.mp4");
// final int REQUEST_WRITE_PERMISSION = 786;
final int VIDEO_CAPTURE = 1;
StrictMode.VmPolicy.Builder builder = new StrictMode.VmPolicy.Builder();
StrictMode.setVmPolicy(builder.build());
Intent intent_record_video = new Intent(MediaStore.ACTION_VIDEO_CAPTURE);
intent_record_video.putExtra(MediaStore.EXTRA_DURATION_LIMIT, 45);
Uri fileUri = FileProvider.getUriForFile(MainActivity.this, "com.example.cse535a1.provider", file_video);
intent_record_video.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);
if (intent_record_video.resolveActivity(getPackageManager()) != null) {
Log.i("CAM", "CAM requeted");
Log.i("Thread ID", String.valueOf(Thread.currentThread().getId()));
startActivityForResult(intent_record_video, VIDEO_CAPTURE);
//reference_this.set_recorded_video(true);
}
}
}).start();
return true;
}
});

android.database.sqlite.SQLiteException: near "WHERE": syntax error (Sqlite code 1)

I would be grateful if anyone could help with this code
android.database.sqlite.SQLiteException: near "WHERE": syntax error (Sqlite code 1): , while compiling: SELECT * FROM WHERE category = 'B', (OS error - 2:No such file or directory)
error from debug
My DbHelper is as following
public class DbHelper extends SQLiteOpenHelper {
private static final String DATABASE_NAME = "Quiz.db";
private static final String KEY_ID = "id";
private static final String KEY_QUES = "question";
private static final String KEY_ANSWER = "answer"; //correct option
private static final String KEY_OPTA= "opta"; //option a
private static final String KEY_OPTB= "optb"; //option b
private static final String KEY_OPTC= "optc"; //option c
private static final String KEY_OPTD= "optd"; //option d
private static final String KEY_CAT="category"; //category
private static final String TABLE_QUEST1 = "questUnit1";
private SQLiteDatabase dbase;
public DbHelper(Context context) {
super(context, DATABASE_NAME, null, 1);
}
public DbHelper(Context context, String name, SQLiteDatabase.CursorFactory factory, int version) {
super(context, DATABASE_NAME, factory, version);
}
#Override
public void onCreate(SQLiteDatabase db) {
dbase=db;
String sql1 = "CREATE TABLE IF NOT EXISTS " + TABLE_QUEST1 + " ( "
+ KEY_ID + " INTEGER PRIMARY KEY AUTOINCREMENT, " + KEY_QUES
+ " TEXT, " + KEY_ANSWER+ " TEXT, "+KEY_OPTA +" TEXT, "
+KEY_OPTB +" TEXT, "+KEY_OPTC+" TEXT, "+KEY_OPTD+" TEXT, "+KEY_CAT+" TEXT)";
db.execSQL(sql1);
addQuestionsUnit1();
}
private void addQuestionsUnit1() {
QuestionUnit1 q101 = new QuestionUnit1("What is the decimal equivalent of the binary number 10111","21","23","39","42","23","B");
this.addQuestionsUnit1(q101);
QuestionUnit1 q102 = new QuestionUnit1("In order to write on a floppy disk with your IBM PC, you must first","digitize it","format it","compile it","hardware it","format it","B");
this.addQuestionsUnit1(q102);
QuestionUnit1 q249= new QuestionUnit1("Firewalls are used to protect against","Unauthorized Attacks","Viruses","Fire Attacks","Data Driven Attacks","Unauthorized Attacks","E");
this.addQuestionsUnit1(q249);
QuestionUnit1 q250= new QuestionUnit1("The first Digital Computer introduced, was named as ","UNIVAC","EDSAC","ENIAC","MARK-1","MARK-1","E");
this.addQuestionsUnit1(q250);
}
public void addQuestionsUnit1(QuestionUnit1 quest) {
//SQLiteDatabase db = this.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(KEY_QUES, quest.getQUESTION1());
values.put(KEY_ANSWER, quest.getANSWER1());
values.put(KEY_OPTA, quest.getOPTA1());
values.put(KEY_OPTB, quest.getOPTB1());
values.put(KEY_OPTC, quest.getOPTC1());
values.put(KEY_OPTD, quest.getOPTD1());
values.put(KEY_CAT,quest.getCATEGORY1());
// Inserting Row
dbase.insert(TABLE_QUEST1, null, values);
}
#Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
}
public List<QuestionUnit1> getAllQuestions1(String tname, String lname)
{
List<QuestionUnit1> quesList1 = new ArrayList<QuestionUnit1>();
String selectQuery1 = "SELECT * FROM " + tname+" WHERE "+KEY_CAT+" = '"+lname+"'";
dbase=this.getReadableDatabase();
Cursor cursor = dbase.rawQuery(selectQuery1, null);
// looping through all rows and adding to list
if (cursor.moveToFirst()) {
do {
QuestionUnit1 quest1 = new QuestionUnit1();
quest1.setID1(cursor.getInt(0));
quest1.setQUESTION1(cursor.getString(1));
quest1.setANSWER1(cursor.getString(2));
quest1.setOPTA1(cursor.getString(3));
quest1.setOPTB1(cursor.getString(4));
quest1.setOPTC1(cursor.getString(5));
quest1.setOPTD1(cursor.getString(6));
quesList1.add(quest1);
} while (cursor.moveToNext());
}
return quesList1;
}// end pubic list
}
the code walks like that a butto to To Exercise Activity
if(position == 2){
Intent i= new Intent(getApplicationContext(),Unit1ExerciseActivity.class);
i.putExtra("table_name",tableName);
i.putExtra("level_name","B");
startActivity(i);
overridePendingTransition(android.R.anim.slide_in_left,android.R.anim.slide_out_right);
}
and the code in the exercise Activity is
public class Unit1ExerciseActivity extends AppCompatActivity {
List<QuestionUnit1> quesList1;
public int score=0;
int ctr1=1;
QuestionUnit1 currentQ1;
TextView txtQuestion1;
RadioGroup grp;
RadioButton rda1, rdb1, rdc1, rdd1;
Button butNext1;
Random random1 = new Random();
ArrayList<Integer> list = new ArrayList<Integer>();
TextView textViewTime1;
public ArrayList<String> wrongQuestListUnit1 = new ArrayList<String>();
public ArrayList<String> selectedAnsUnit1 = new ArrayList<String>();
public ArrayList<String> actualAnswerUnit1 = new ArrayList<String>();
int number;
ProgressBar progressBar;
int progress = 1;
String tableName="",catName="";
TextView qstnNo;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.unit1_exercise_activity);
qstnNo = (TextView)findViewById(R.id.qstnNo);
Intent iin=getIntent();
Bundle b=iin.getExtras();
if(b!=null){
tableName=(String)b.get("table_name");
catName=(String)b.get("level_name");
Log.d("Table Name",tableName);
Log.d("Level Name",catName);
}
number=0;
DbHelper db= new DbHelper(this);
textViewTime1 = (TextView)findViewById(R.id.textViewTime);
final CounterClass timer = new CounterClass(1800000, 1000);
timer.start();
quesList1=db.getAllQuestions1(tableName,catName);
for(int i=0;i<50;i++){
while(true){
int next = random1.nextInt(50);
if(!list.contains(next))
{
list.add(next);
break;
}
}
}
currentQ1=quesList1.get(list.get(0));
txtQuestion1=(TextView)findViewById(R.id.textView1);
rda1=(RadioButton)findViewById(R.id.radio0);
rdb1=(RadioButton)findViewById(R.id.radio1);
rdc1=(RadioButton)findViewById(R.id.radio2);
rdd1=(RadioButton)findViewById(R.id.radio3);
butNext1=(Button)findViewById(R.id.button1);
setQuestionView();
grp = (RadioGroup) findViewById(R.id.radioGroup1);
butNext1.setEnabled(false);
grp.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
#Override
public void onCheckedChanged(RadioGroup radioGroup, int i) {
if(i== R.id.radio0 || i == R.id.radio1 || i==R.id.radio2 || i == R.id.radio3)
butNext1.setEnabled(true);
}
});
progressBar = (ProgressBar) findViewById(R.id.progressBar);
progressBar.setMax(30);
progressBar.setProgress(1);
butNext1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
progress = progress+1;
progressBar.setProgress(progress);
RadioButton answer = (RadioButton) findViewById(grp.getCheckedRadioButtonId());
//Log.d("yourans", currentQ1.getANSWER1() + " " + answer.getText());
if (currentQ1.getANSWER1().equals(answer.getText())) {
score++;
//Log.d("score", "Your score" + score1);
}
else
{
wrongQuestListUnit1.add(number, currentQ1.getQUESTION1());
selectedAnsUnit1.add(number, answer.getText().toString());
actualAnswerUnit1.add(number, currentQ1.getANSWER1());
number++;
}
grp.clearCheck();
butNext1.setEnabled(false);
if (ctr1 < 31) {
if (ctr1 == 30) {
butNext1.setText("End Test");
}
currentQ1 = quesList1.get(list.get(ctr1));
setQuestionView();
} else {
timer.onFinish();
timer.cancel();
}
}
});
}
public class CounterClass extends CountDownTimer {
public CounterClass(long millisInFuture, long countDownInterval) {
super(millisInFuture, countDownInterval);
}
#Override
public void onTick(long millisUntilFinished) {
long millis = millisUntilFinished;
String hms = String.format("%02d:%02d",
TimeUnit.MILLISECONDS.toMinutes(millis) - TimeUnit.HOURS.toMinutes(TimeUnit.MILLISECONDS.toHours(millis)),
TimeUnit.MILLISECONDS.toSeconds(millis) - TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(millis)));
textViewTime1.setText(hms);
}
#Override
public void onFinish() {
showResult();
}
}
public void showResult(){
Intent intent = new Intent(Unit1ExerciseActivity.this, ResultActivity.class);
Bundle b = new Bundle();
b.putInt("scoreUnit1 ", score);//Your score
b.putString("section",tableName);//Your table name
b.putString("category",catName);//Your category name
intent.putStringArrayListExtra("wrongQuestions", wrongQuestListUnit1);
intent.putStringArrayListExtra("selectedAnswer", selectedAnsUnit1);
intent.putStringArrayListExtra("actualAnswer", actualAnswerUnit1);
intent.putExtras(b); //Put your score to your next Intent
startActivity(intent);
finish();
}
private void setQuestionView(){
txtQuestion1.setText(currentQ1.getQUESTION1());
rda1.setText(currentQ1.getOPTA1());
rdb1.setText(currentQ1.getOPTB1());
rdc1.setText(currentQ1.getOPTC1());
rdd1.setText(currentQ1.getOPTD1());
if(ctr1<10)
qstnNo.setText("0" + ctr1 + "/30");
else
qstnNo.setText("" + ctr1+ "/30");
ctr1++;
}
#Override
public void onBackPressed() {
//super.onBackPressed();
AlertDialog.Builder builder = new AlertDialog.Builder(this);
//Uncomment the below code to Set the message and title from the strings.xml file
//builder.setMessage(R.string.dialog_message) .setTitle(R.string.dialog_title);
//Setting message manually and performing action on button click
builder.setMessage("If you close all your progress would not be saved... Do you wish to exit ?")
.setCancelable(false)
.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
finish();
}
})
.setNegativeButton("No", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
// Action for 'NO' Button
dialog.cancel();
}
});
//Creating dialog box
AlertDialog alert = builder.create();
//Setting the title manually
// alert.setTitle("CompQuiz");
alert.show();
}
}

You are probably passing/getting a null tableName.
Try this:
if(b!=null){
tableName=b.getString("table_name");
catName=b.getString("level_name");
Log.d("Table Name",tableName);
Log.d("Level Name",catName);
}

Try this please:
public void addQuestionsUnit1(QuestionUnit1 quest){
SQLiteDatabase db = getWritableDatabase();
db.beginTransaction();
try {
ContentValues values = new ContentValues();
values.put(KEY_QUES, quest.getQUESTION1());
values.put(KEY_ANSWER, quest.getANSWER1());
values.put(KEY_OPTA, quest.getOPTA1());
values.put(KEY_OPTB, quest.getOPTB1());
values.put(KEY_OPTC, quest.getOPTC1());
values.put(KEY_OPTD, quest.getOPTD1());
values.put(KEY_CAT,quest.getCATEGORY1());
// Inserting Row
dbase.insert(TABLE_QUEST1, null, values);
db.setTransactionSuccessful();
} catch (Exception e) {
Log.d("DB insertion", "Error while trying to add values to database");
} finally {
db.endTransaction();
}
}
#Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
}
public List<QuestionUnit1> getAllQuestions1(String tname, String lname)
{
List<QuestionUnit1> quesList1 = new ArrayList<QuestionUnit1>();
String selectQuery1 = "SELECT * FROM " + tname+" WHERE "+KEY_CAT+" = '"+lname+"'";
dbase= getReadableDatabase();
Cursor cursor = dbase.rawQuery(selectQuery1, null);
// looping through all rows and adding to list
if (cursor.moveToFirst()) {
do {
QuestionUnit1 quest1 = new QuestionUnit1();
quest1.setID1(cursor.getInt(0));
quest1.setQUESTION1(cursor.getString(1));
quest1.setANSWER1(cursor.getString(2));
quest1.setOPTA1(cursor.getString(3));
quest1.setOPTB1(cursor.getString(4));
quest1.setOPTC1(cursor.getString(5));
quest1.setOPTD1(cursor.getString(6));
quesList1.add(quest1);
} while (cursor.moveToNext());
}
cursor.close();
return quesList1;
}
}

save state of my game in database

In my project I download all the data of my project from a json.I download title and description as text and also download my icon and the file of games.
I can download them and also save in database and show in listview easily.
My QUESTION is about how to save that my file for game is beinng download or not?
I have two buttons. first is download button when user click it , it starts to download file.when download finish, my download button disappear and my play button appears.
I want to save this, when user for second time run the application,i save for example my second position downloaded before. and I have just my play button.
my database:
public class DatabaseHandler extends SQLiteOpenHelper {
public SQLiteDatabase sqLiteDatabase;
int tedad;
public DatabaseHandler(Context context) {
super(context, "EmployeeDatabase.db", null, 1);
}
#Override
public void onCreate(SQLiteDatabase db) {
String tableEmp = "create table emp(PersianTitle text,Description text,icon text,downloadlink text,dl integer)";
db.execSQL(tableEmp);
}
#Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
}
public void insertData(ArrayList<String> id, ArrayList<String> name, ArrayList<String> salary, ArrayList<String> roms,String
dl) {
int size = id.size();
tedad = size;
sqLiteDatabase = this.getWritableDatabase();
try {
for (int i = 0; i < size; i++) {
ContentValues values = new ContentValues();
values.put("PersianTitle", id.get(i));
values.put("Description", name.get(i));
values.put("icon", salary.get(i));
values.put("downloadlink", roms.get(i));
values.put("dl", "0");
sqLiteDatabase.insert("emp", null, values);
}
} catch (Exception e) {
Log.e("Problem", e + " ");
}
}
public ArrayList<String> Game_Info (int row, int field) {
String fetchdata = "select * from emp";
SQLiteDatabase sqLiteDatabase = this.getReadableDatabase();
ArrayList<String> stringArrayList = new ArrayList<String>();
Cursor cu = sqLiteDatabase.rawQuery(fetchdata, null);
for (int i = 0; i < row + 1; i++) {
cu.moveToPosition(i);
String s = cu.getString(field);
stringArrayList.add(s);
}
return stringArrayList;
}
}
and this is my main code:
public class MainActivity2 extends Activity {
Boolean done_game = false;
ProgressDialog progressDialog;
private boolean _init = false;
ListView listView;
DatabaseHandler database;
BaseAdapter adapter;
public String path_image;
JSONObject jsonObject;
Game_Counter_Store Game_Counter_Store;
int game_counter_store;
ArrayList<String> name_array = new ArrayList<String>();
ArrayList<String> des_array = new ArrayList<String>();
ArrayList<String> icon_array = new ArrayList<String>();
ArrayList<String> roms_array = new ArrayList<String>();
ArrayList<String> fav_array = new ArrayList<String>();
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_main2);
init();
System.gc();
File mediaStorageDir = new File(Environment.getExternalStorageDirectory(), "MyDirName");//make a direction
path_image = mediaStorageDir.getAbsolutePath(); // here is tha path
listView = (ListView) findViewById(R.id.listView);
database = new DatabaseHandler(MainActivity2.this);
database.getWritableDatabase();
Game_Counter_Store = new Game_Counter_Store("Games_Number", this); // number of game in first run is 0
game_counter_store = Game_Counter_Store.get_count();
if (game_counter_store == 0) {
Log.i("mhs", "game_counter_store is 0");
DownloadGames();
} else {
Log.i("mhs", "there are some games");
for (int i = 0; i < game_counter_store; i++) {
name_array = database.Game_Info(i, 0);
des_array = database.Game_Info(i, 1);
icon_array = database.Game_Info(i, 2);
roms_array = database.Game_Info(i, 3);
fav_array = database.Game_Info(i, 4);
}
adapter = new MyBaseAdapter(MainActivity2.this, name_array, des_array, icon_array, roms_array,fav_array);
listView.setAdapter(adapter);
}
}
public void DownloadGames() {
//here we download name, des, icon
MakeDocCallBack makeDocCallBack = new MakeDocCallBack() {
#Override
public void onResult(ArrayList<String> res) {
if (res.size() > 0) {
try {
Game_Counter_Store counter_store = new Game_Counter_Store("Games_Number", MainActivity2.this); // get numbrr of games
counter_store.set_count(res.size()); // store the games number
for (int i = 0; i < res.size(); i++) {
jsonObject = new JSONObject(res.get(i)); //get all the jsons
//get all the data to store in database
name_array.add(jsonObject.getString("PersianTitle"));
des_array.add(jsonObject.getString("Description"));
icon_array.add(jsonObject.getString("icon"));
roms_array.add(jsonObject.getString("downloadlink"));
GetFile fd = new GetFile(MainActivity2.this, path_image, getFileName(jsonObject.getString("icon")), jsonObject.getString("icon").toString(), null); // download the image
GetFileCallBack Image_callback = new GetFileCallBack() {
#Override
public void onStart() {
// Toast.makeText(getApplicationContext(),"start",Toast.LENGTH_LONG).show();
}
#Override
public void onProgress(long l, long l1) {
// Toast.makeText(getApplicationContext(),"onProgress",Toast.LENGTH_LONG).show();
}
#Override
public void onSuccess() {
// Toast.makeText(getApplicationContext(),"YES",Toast.LENGTH_LONG).show();
}
#Override
public void onFailure() {
// Toast.makeText(getApplicationContext(),"NO",Toast.LENGTH_LONG).show();
}
};
if (!fd.DoesFileExist()) {
fd.Start(Image_callback); // get the data
}
//set data in adapter to show in listview
adapter = new MyBaseAdapter(MainActivity2.this, name_array, des_array, icon_array, roms_array,fav_array);
listView.setAdapter(adapter);
}
//store dada in database (name , des , icon , bin file(roms) , state)
database.insertData(name_array, des_array, icon_array, roms_array,"0");
} catch (Exception ex) {
}
}
}
};
DocMaker doc = new DocMaker();
doc.set(this, makeDocCallBack);
}
public static String getFileName(String url) {
String temp = url.substring(url.lastIndexOf('/') + 1, url.length());
if (temp.contains("?"))
temp = temp.substring(0, temp.indexOf("?"));
return temp;
}
public class MyBaseAdapter extends BaseAdapter {
private Activity activity;
private ArrayList title, desc, icon, roms,fav;
private LayoutInflater inflater = null;
public MyBaseAdapter(Activity a, ArrayList b, ArrayList c, ArrayList d, ArrayList e, ArrayList f) {
activity = a;
this.title = b;
this.desc = c;
this.icon = d;
this.roms = e;
this.fav=f;
inflater = (LayoutInflater) activity
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
public int getCount() {
return title.size();
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
public View getView(final int position, View convertView, ViewGroup parent) {
View vi = convertView;
if (convertView == null)
vi = inflater.inflate(R.layout.list_item, null);
TextView title2 = (TextView) vi.findViewById(R.id.game_name); // title
String song = title.get(position).toString();
title2.setText(song);
TextView title22 = (TextView) vi.findViewById(R.id.game_des); // desc
String song2 = desc.get(position).toString();
title22.setText(song2);
File imageFile = new File("/storage/emulated/0/MyDirName/" + getFileName(icon_array.get(position)));
ImageView imageView = (ImageView) vi.findViewById(R.id.icon); // icon
imageView.setImageBitmap(BitmapFactory.decodeFile(imageFile.getAbsolutePath()));
TextView title222 = (TextView) vi.findViewById(R.id.game_roms); // desc
String song22 = roms.get(position).toString();
title222.setText(song22);
final Button dl_btn = (Button) vi.findViewById(R.id.dl_btn); // desc
final Button run_btn = (Button) vi.findViewById(R.id.play_btn); // desc
run_btn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Preferences.DEFAULT_GAME_FILENAME = getFileName(roms_array.get(position));
Intent myIntent = new Intent(MainActivity2.this, FileChooser.class);
myIntent.putExtra(FileChooser.EXTRA_START_DIR, Preferences.getRomDir(MainActivity2.this));
Log.i("mhsnnn", Preferences.getTempDir(MainActivity2.this));
final int result = Preferences.MENU_ROM_SELECT;
startActivityForResult(myIntent, result);
}
});
dl_btn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
MakeDocCallBack makeDocCallBack = new MakeDocCallBack() {
#Override
public void onResult(ArrayList<String> res) {
if (res.size() > 0) {
try {
jsonObject = new JSONObject(res.get(position));
roms_array.add(jsonObject.getString("downloadlink"));
GetFile fd1 = new GetFile(MainActivity2.this, path_image, getFileName(jsonObject.getString("downloadlink")), jsonObject.getString("downloadlink").toString(),null); //download the bin file
GetFileCallBack roms_callback = new GetFileCallBack() {
#Override
public void onStart() {
}
#Override
public void onProgress(long l, long l1) {
Log.i("nsr", "onProgress");
}
#Override
public void onSuccess() {
Log.i("nsr", "onSuccess");
dl_btn.setVisibility(View.GONE);
run_btn.setVisibility(View.VISIBLE);
}
#Override
public void onFailure() {
Log.i("nsr", "onFailure");
}
};
if (!fd1.DoesFileExist()) {
fd1.Start(roms_callback);
}
} catch (Exception ex) {
}
}
}
};
DocMaker doc = new DocMaker();
doc.set(MainActivity2.this, makeDocCallBack);
}
});
return vi;
}
}
#Override
public void onBackPressed() {
super.onBackPressed();
}
private boolean verifyExternalStorage() {
// check for sd card first
boolean mExternalStorageAvailable = false;
boolean mExternalStorageWriteable = false;
String state = Environment.getExternalStorageState();
if (Environment.MEDIA_MOUNTED.equals(state)) {
// rw access
mExternalStorageAvailable = mExternalStorageWriteable = true;
} else if (Environment.MEDIA_MOUNTED_READ_ONLY.equals(state)) {
// r access
mExternalStorageAvailable = true;
mExternalStorageWriteable = false;
} else {
// no access
mExternalStorageAvailable = mExternalStorageWriteable = false;
}
// if we do not have storage warn user with dialog
if (!mExternalStorageAvailable || !mExternalStorageWriteable) {
AlertDialog.Builder dialog = new AlertDialog.Builder(this)
.setTitle(getString(R.string.app_name) + " Error")
.setMessage("External Storage not mounted, are you in disk mode?")
.setPositiveButton("Retry", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
init();
}
})
.setNeutralButton("Exit", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
finish();
}
});
dialog.show();
return false;
}
return true;
}
private void init() {
if (verifyExternalStorage() && !_init) {
// always try and make application dirs
String extStorageDirectory = Environment.getExternalStorageDirectory().toString();
Log.i("nsrrr1", extStorageDirectory);
// /storage/emulated/0
File myNewFolder = new File(extStorageDirectory + Preferences.DEFAULT_DIR);
Log.i("nsrrr2", extStorageDirectory + Preferences.DEFAULT_DIR);///storage/emulated/0/sega
if (!myNewFolder.exists()) {
myNewFolder.mkdir();
}
myNewFolder = new File(extStorageDirectory + Preferences.DEFAULT_DIR_ROMS);
Log.i("nsrrr3", extStorageDirectory + Preferences.DEFAULT_DIR);///storage/emulated/0/sega
if (!myNewFolder.exists()) {
myNewFolder.mkdir();
}
AssetManager assetManager = getAssets();
String[] files = null;
try {
files = assetManager.list(Preferences.DEFAULT_DIR_GAME);
Log.i("nsrrr3", files + "");
} catch (IOException e) {
Log.e("tag", "Failed to get asset file list.", e);
}
for (String filename : files) {
InputStream in = null;
OutputStream out = null;
try {
in = assetManager.open(Preferences.DEFAULT_DIR_GAME + "/" + filename);
File outFile = new File(myNewFolder, filename);
out = new FileOutputStream(outFile);
copyFile(in, out);
} catch (IOException e) {
Log.e("tag", "Failed to copy asset file: " + filename, e);
}
}
// do first run welcome screen
SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
boolean firstRun = preferences.getBoolean(Preferences.PREF_FIRST_RUN, true);
if (firstRun) {
// remove first run flag
Editor edit = preferences.edit();
edit.putBoolean(Preferences.PREF_FIRST_RUN, false);
// default input
edit.putBoolean(Preferences.PREF_USE_DEFAULT_INPUT, true);
edit.commit();
}
// generate APK path for the native side
ApplicationInfo appInfo = null;
PackageManager packMgmr = this.getPackageManager();
try {
appInfo = packMgmr.getApplicationInfo(getString(R.string.package_name), 0);
} catch (PackageManager.NameNotFoundException e) {
e.printStackTrace();
throw new RuntimeException("Unable to locate assets, aborting...");
}
String _apkPath = appInfo.sourceDir;
// init the emulator
Emulator.init(_apkPath);
Log.i("rrrr", _apkPath);
// set the paths
Emulator.setPaths(extStorageDirectory + Preferences.DEFAULT_DIR,
extStorageDirectory + Preferences.DEFAULT_DIR_ROMS,
"",
"",
"");
// load up prefs now, never again unless they change
//PreferenceFacade.loadPrefs(this, getApplicationContext());
// load gui
// Log.d(LOG_TAG, "Done init()");
setContentView(R.layout.activity_main2);
// set title
super.setTitle(getString(R.string.app_name));
_init = true;
// Log.d(LOG_TAG, "Done onCreate()");
}
}
private void copyFile(InputStream in, OutputStream out) {
byte[] buffer = new byte[1024];
int read;
try {
while ((read = in.read(buffer)) != -1) {
out.write(buffer, 0, read);
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
how to make method in my database to do this?

If I understood you properly, you can add a table, user_games for example with User ID, Game ID and Status, then you can update status whenever an action is completed.
For example Status 1 for downloading, status 2 for Downloaded or Finished and you can even add statuses like download failed, to add a re-download button...
you can do something like
public void update_status(UserID,GameID) {
String update = "UPDATE games set status = 1 where id="+Game_ID+" and UserID = " + UserID);
db.rawQuery(update, null);
}

SQLite - RecyclerView - many tables do not work

I have a problem with creating two tables in sqlite and display them in RecyclerView and more specifically with one table. I add to the question a screenshot of the application so that you can understand what the problem is.
I have 3 activities: FirstActivity, in which there are two buttons (Monday and Tuesday) -> from this activity we go to MainActivity, on the button selection (Monday) -> save data in table_MON and after selection button (Tuesday) in the table_Tue. The problem is that everything works correctly, when we press the button (Monday) we can save the training, edit and delete it. However, when we go to the button (Tuesday) we can only add training, but we can't edit or delete them. However, I have no idea why? I am already looking at this problem for a week and I have no idea what is going on, maybe a fresh look will help solve the problem.
My database consists of two tables: tableMon and tableTue, but I use the same columns in it (exercises, weight etc ..), and separate _id, and I do not know if this can be a problem. Perhaps the problem is that I use MainActivity in both cases?
Screenshot App:
FirstActivity
enter image description here
Click button Monday --> MainActivity.class
enter image description here
Click button Tuesday --> MainActivity.class
enter image description here
Button Tuesday --> DetailActivity and her is the problem I can't update and delete training.
enter image description here
FirstActivity.class
public class FirstActivity extends AppCompatActivity {
Button buttonMon, buttonTue;
public static final String BUTTON_KEY1 = "BUTTON_KEY";
public static final String BUTTON_KEY2 = "BUTTON_KEY2";
public static final String BUTTON_VALUE = "1";
public static final String BUTTON_VALUE2 = "2";
public static boolean WAS_RUNNING;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_first);
buttonMon = (Button) findViewById(R.id.buttonMonday);
buttonTue = (Button) findViewById(R.id.buttonTuesday);
WAS_RUNNING = false;
//OPEN THE SAME MAINACTIVITY
buttonMon.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
WAS_RUNNING = true;
Intent intent = new Intent(FirstActivity.this, MainActivity.class);
intent.putExtra(BUTTON_KEY1, BUTTON_VALUE);
startActivity(intent);
} });
//OPEN THE SAME MAINACTIVITY
buttonTue.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
WAS_RUNNING = true;
Intent i = new Intent(FirstActivity.this, MainActivity.class);
i.putExtra(BUTTON_KEY2, BUTTON_VALUE2);
startActivity(i);
} });}}
MainActivity.class
public class MainActivity extends AppCompatActivity {
private RecyclerView recyclerView;
private MyAdapter myAdapter;
private ArrayList<Training> trainingArrayList = new ArrayList<Training>();
private EditText editTextExercise, editTextWeight, editTextRepeat, editTextSeries;
private Button buttonSave, buttonBack;
private Dialog dialog;
private String value;
private String value2;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Bundle bundle = getIntent().getExtras();
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
showDialog();}});
if(bundle == null)
{return;}
value = bundle.getString(FirstActivity.BUTTON_KEY1);
value2 = bundle.getString(FirstActivity.BUTTON_KEY2);
recyclerView = (RecyclerView) findViewById(R.id.recyclerView);
if(value != null) {
recyclerView.setLayoutManager(new LinearLayoutManager(this));
recyclerView.setItemAnimator(new DefaultItemAnimator());
myAdapter = new MyAdapter(this, trainingArrayList);
//Refresh MON TABLE
refreshMonTable();
}else if(value2 != null) {
recyclerView.setLayoutManager(new LinearLayoutManager(this));
recyclerView.setItemAnimator(new DefaultItemAnimator());
myAdapter = new MyAdapter(this, trainingArrayList);
//Refresh TUE TABLE
refreshTueTable(); }}
public void showDialog()
{
dialog = new Dialog(this);
dialog.setContentView(R.layout.dialog_layout);
editTextExercise = (EditText) dialog.findViewById(editTextExerciseDialog);
editTextWeight = (EditText) dialog.findViewById(editTextWeightDialog);
editTextRepeat = (EditText) dialog.findViewById(editTextRepeatDialog);
editTextSeries = (EditText) dialog.findViewById(editTextSeriesDialog);
buttonSave = (Button) dialog.findViewById(buttonSaveDialog);
buttonBack = (Button) dialog.findViewById(buttonBackDialog);
buttonBack.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
dialog.dismiss();}});
buttonSave.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if(value != null) {
saveDataMon(editTextExercise.getText().toString(),
String.valueOf(editTextWeight.getText().toString()),
String.valueOf(editTextRepeat.getText().toString()),
String.valueOf(editTextSeries.getText().toString()));
} else if(value2 != null) {
saveDataTue(editTextExercise.getText().toString(),
String.valueOf(editTextWeight.getText().toString()),
String.valueOf(editTextRepeat.getText().toString()),
String.valueOf(editTextSeries.getText().toString()));
}}});
dialog.show();}
private void saveDataMon(String exercise, String weight, String repeat, String series)
{
DBAdapter adapter = new DBAdapter(this);
adapter.openDatabase();
long result = adapter.addMon(exercise, weight, repeat, series);
if (result > 0) {
editTextExercise.setText("");
editTextWeight.setText("");
editTextRepeat.setText("");
editTextSeries.setText("");
dialog.dismiss();
} else {
Snackbar.make(editTextExercise, "Unable to save!", Snackbar.LENGTH_SHORT).show();}
adapter.closeDB();
refreshMonTable();}
private void saveDataTue(String exercise, String weight, String repeat, String series)
{
DBAdapter adapter = new DBAdapter(this);
adapter.openDatabase();
long result = adapter.addTue(exercise, weight, repeat, series);
if (result > 0) {
editTextExercise.setText("");
editTextWeight.setText("");
editTextRepeat.setText("");
editTextSeries.setText("");
dialog.dismiss();
} else {
Snackbar.make(editTextExercise, "Unable to save!", Snackbar.LENGTH_SHORT).show();
}
adapter.closeDB();
refreshTueTable();}
private void refreshMonTable()
{
DBAdapter adapter = new DBAdapter(this);
adapter.openDatabase();
trainingArrayList.clear();
Cursor cursor = adapter.getAllTreningMon();
if(cursor != null)
{ if(cursor.moveToFirst())
{
do {
int id = cursor.getInt(0);
String cwiczenie = cursor.getString(1);
String ciezar = cursor.getString(2);
String powtorzenia = cursor.getString(3);
String serie = cursor.getString(4);
Training training = new Training(id, cwiczenie, ciezar, powtorzenia, serie);
trainingArrayList.add(training);
}while (cursor.moveToNext());}}
recyclerView.setAdapter(myAdapter);
adapter.closeDB(); }
private void refreshTueTable()
{
DBAdapter adapter = new DBAdapter(this);
adapter.openDatabase();
trainingArrayList.clear();
Cursor cursor = adapter.getAllTreningTue();
if(cursor != null)
{ if(cursor.moveToFirst())
{
do {
int id = cursor.getInt(0);
String exercise = cursor.getString(1);
String weight = cursor.getString(2);
String repeat = cursor.getString(3);
String series = cursor.getString(4);
Training training = new Training(id, exercise, weight, repeat, series);
trainingArrayList.add(training);
}while (cursor.moveToNext());}}
recyclerView.setAdapter(myAdapter);
adapter.closeDB();
}
#Override
protected void onResume() {
super.onResume();
if(value != null) {
//REFRESH
refreshMonTable();
} else if(value2 != null) {
refreshTueTable();}}
#Override
public void onBackPressed() {
new AlertDialog.Builder(this)
.setTitle("Exit?")
.setMessage("Do you want to exit?")
.setNegativeButton("No", null)
.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
MainActivity.super.onBackPressed();
}
}).create().show();}}
DetailActivity.class
public class DetailActivity extends AppCompatActivity {
private EditText editTextExerciseDetail, editTextWeightDetail, editTextRepeatDetail, editTextSeriesDetail;
private Button buttonUpdate;
private Button buttonDelete;
String mon;
String tue;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_detail);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
Bundle intent = getIntent().getExtras();
if(intent == null)
{return;}
mon = intent.getString(MyAdapter.KEY_MON);
tue = intent.getString(MyAdapter.KEY_TUE);
final int idT = intent.getInt("id");
String cwiczenie = intent.getString("exercise");
String ciezar = intent.getString("weight");
String powtorzenia = intent.getString("repeat");
String serie = intent.getString("series");
editTextExerciseDetail = (EditText) findViewById(R.id.exerciseEditTxtDetail);
editTextWeightDetail = (EditText) findViewById(R.id.weightEditTextDetail);
editTextRepeatDetail = (EditText) findViewById(R.id.repeatEditTextDetail);
editTextSeriesDetail = (EditText) findViewById(R.id.seriesEditTextDetail);
buttonUpdate = (Button) findViewById(R.id.updateBtn);
buttonDelete = (Button) findViewById(R.id.deleteBtn);
editTextExerciseDetail.setText(cwiczenie);
editTextWeightDetail.setText(ciezar);
editTextRepeatDetail.setText(powtorzenia);
editTextSeriesDetail.setText(serie);
buttonUpdate.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if(mon != null) {
updateMon(idT, editTextExerciseDetail.getText().toString(),
editTextWeightDetail.getText().toString(),
editTextRepeatDetail.getText().toString(),
editTextSeriesDetail.getText().toString());
} else if(tue != null) {
updateTue(idT, editTextExerciseDetail.getText().toString(),
editTextWeightDetail.getText().toString(),
editTextRepeatDetail.getText().toString(),
editTextSeriesDetail.getText().toString());}}
});
buttonDelete.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
AlertDialog.Builder builder = new AlertDialog.Builder(DetailActivity.this);
builder.setMessage("Do you want delete this training?")
.setTitle("Delete")
.create();
builder.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
if(mon != null) {
deleteMon(idT);
}else if(tue != null){
deleteTue(idT);}}});
builder.setNegativeButton("No", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}});
builder.show();}});}
//Update MON TABLE
private void updateMon(int id, String newExercise, String newWeight, String newRepeat, String newSeries)
{
DBAdapter dbAdapter = new DBAdapter(this);
dbAdapter.openDatabase();
long result = dbAdapter.updateMon(id, newExercise, newWeight, newRepeat, newSeries);
if(result > 0)
{
editTextExerciseDetail.setText(newExercise);
editTextWeightDetail.setText(newWeight);
editTextRepeatDetail.setText(newRepeat);
editTextSeriesDetail.setText(newSeries);
this.finish();
Snackbar.make(editTextExerciseDetail, "Updated Succesfully", Snackbar.LENGTH_SHORT).show();
}else
{
Snackbar.make(editTextExerciseDetail, "Unable to updated", Snackbar.LENGTH_SHORT).show();
}
dbAdapter.closeDB();
}
//Update TUE TABLE
private void updateTue(int id, String newExercise, String newWeight, String newRepeat, String newSeries)
{
DBAdapter dbAdapter = new DBAdapter(this);
dbAdapter.openDatabase();
long result = dbAdapter.updateTue(id, newExercise, newWeight, newRepeat, newSeries);
if(result > 0)
{
editTextExerciseDetail.setText(newExercise);
editTextWeightDetail.setText(newWeight);
editTextRepeatDetail.setText(newRepeat);
editTextSeriesDetail.setText(newSeries);
this.finish();
Snackbar.make(editTextExerciseDetail, "Updated Succesfully", Snackbar.LENGTH_SHORT).show();
}else
{
Snackbar.make(editTextExerciseDetail, "Unable to updated", Snackbar.LENGTH_SHORT).show();
}
dbAdapter.closeDB();}
//DELETE MON TABLE
private void deleteMon(int id)
{
DBAdapter dbAdapter = new DBAdapter(this);
dbAdapter.openDatabase();
long result = dbAdapter.deleteMon(id);
if(result>0)
{
this.finish();
}else
{
Snackbar.make(editTextExerciseDetail, "Unable to deleted", Snackbar.LENGTH_SHORT).show();
}
dbAdapter.closeDB();
}
//DELETE TUE TABLE
private void deleteTue(int id)
{
DBAdapter dbAdapter = new DBAdapter(this);
dbAdapter.openDatabase();
long result = dbAdapter.deleteTue(id);
if(result>0)
{
this.finish();
}else
{
Snackbar.make(editTextExerciseDetail, "Unable to deleted", Snackbar.LENGTH_SHORT).show();
}
dbAdapter.closeDB();}
#Override
protected void onResume() {
super.onResume();}
#Override
protected void onRestart() {
super.onRestart();}}
DBHelper.class
public class DBHelper extends SQLiteOpenHelper {
//DB
static final String DB_NAME = "training_db";
static final int DB_VERSION = '1';
//TABLES
static final String TB_NAME_MON = "training_tb_mon";
static final String TB_NAME_TUE = "training_tb_tue";
//COLUMNS
static final String ROW_ID_MON = "id_Mon";
static final String ROW_ID_TUE = "id_Tue";
//ROW
static final String EXERCISE = "exercise";
static final String WEIGHT = "weight";
static final String REPEAT = "repeat";
static final String SERIES = "series";
static final String CREATE_TB_MON = "CREATE TABLE training_tb_mon (id_Mon INTEGER PRIMARY KEY AUTOINCREMENT,"
+ "exercise TEXT NOT NULL, weight TEXT NOT NULL, repeat TEXT NOT NULL, series TEXT NOT NULL);";
static final String CREATE_TB_TUE = "CREATE TABLE training_tb_tue (id_Tue INTEGER PRIMARY KEY AUTOINCREMENT,"
+ "exercise TEXT NOT NULL, weight TEXT NOT NULL, repeat TEXT NOT NULL, series TEXT NOT NULL);";
public DBHelper(Context context) {
super(context, DB_NAME, null, DB_VERSION);}
#Override
public void onCreate(SQLiteDatabase db) {
try {
db.execSQL(CREATE_TB_MON);
db.execSQL(CREATE_TB_TUE);
}catch (Exception e) {
e.printStackTrace();
}}
#Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
db.execSQL("DROP TABLE IF EXISTS " + TB_NAME_MON);
db.execSQL("DROP TABLE IF EXISTS " + TB_NAME_TUE);
onCreate(db);
}}
DBAdapter.class
public class DBAdapter {
Context c;
DBHelper dbHelper;
SQLiteDatabase db;
public DBAdapter(Context c) {
this.c = c;
dbHelper = new DBHelper(c);
}
//OPEN DATABASE
public DBAdapter openDatabase() {
try {
db = dbHelper.getWritableDatabase();
}catch (SQLiteException e) {
e.printStackTrace();
}
return this;
}
//CLOSE DATABASE
public void closeDB()
{
try{
dbHelper.close();
}catch (SQLiteException e){
e.printStackTrace();
}}
//Add training Mon
public long addMon(String exercise, String weight, String repeat, String series)
{
try{
ContentValues contentValues = new ContentValues();
contentValues.put(DBHelper.EXERCISE, exercise);
contentValues.put(DBHelper.WEIGHT, weight);
contentValues.put(DBHelper.REPEAT, repeat);
contentValues.put(DBHelper.SERIES, series);
return db.insert(DBHelper.TB_NAME_MON, DBHelper.ROW_ID_MON, contentValues);
}catch (SQLiteException e) {
e.printStackTrace(); }
return 0;}
//Add training Tue
public long addTue(String exercise, String weight, String repeat, String series)
{
try{
ContentValues contentValues = new ContentValues();
contentValues.put(DBHelper.EXERCISE, exercise);
contentValues.put(DBHelper.WEIGHT, weight);
contentValues.put(DBHelper.REPEAT, repeat);
contentValues.put(DBHelper.SERIES, series);
return db.insert(DBHelper.TB_NAME_TUE, DBHelper.ROW_ID_TUE, contentValues);
}catch (SQLiteException e) {
e.printStackTrace();
}
return 0;
}
//REFRESH TABLE MON
public long updateMon(int id, String exercise, String weight, String repeat, String series)
{
try{
ContentValues contentValues = new ContentValues();
contentValues.put(DBHelper.EXERCISE, exercise);
contentValues.put(DBHelper.WEIGHT, weight);
contentValues.put(DBHelper.REPEAT, repeat);
contentValues.put(DBHelper.SERIES, series);
contentValues.put(DBHelper.ROW_ID_MON, id);
return db.update(DBHelper.TB_NAME_MON, contentValues, DBHelper.ROW_ID_MON + " =?", new String[]{String.valueOf(id)});
}catch (SQLiteException e) {
e.printStackTrace(); }
return 0;
}
//REFRESH TABLE TUE
public long updateTue(int id, String exercise, String weight, String repeat, String series)
{
try{
ContentValues contentValues = new ContentValues();
contentValues.put(DBHelper.EXERCISE, exercise);
contentValues.put(DBHelper.WEIGHT, weight);
contentValues.put(DBHelper.REPEAT, repeat);
contentValues.put(DBHelper.SERIES, series);
contentValues.put(DBHelper.ROW_ID_TUE, id);
return db.update(DBHelper.TB_NAME_TUE, contentValues, DBHelper.ROW_ID_TUE + " =?", new String[]{String.valueOf(id)});
}catch (SQLiteException e) {
e.printStackTrace();
}
return 0;
}
//DELETE ROW TABLE MON
public long deleteMon(int id)
{
try{
return db.delete(DBHelper.TB_NAME_MON, DBHelper.ROW_ID_MON + " =?", new String[]{String.valueOf(id)});
}catch (SQLiteException e) {
e.printStackTrace();
}
return 0; }
//DELETE ROW TABLE TUE
public long deleteTue(int id)
{
try{
return db.delete(DBHelper.TB_NAME_TUE, DBHelper.ROW_ID_TUE + " =?", new String[]{String.valueOf(id)});
}catch (SQLiteException e) {
e.printStackTrace();}
return 0;}
//ALL TRAINING TABLE MON
public Cursor getAllTreningMon() {
try{
String[] columns = {DBHelper.ROW_ID_MON, DBHelper.EXERCISE, DBHelper.WEIGHT, DBHelper.REPEAT, DBHelper.SERIES};
return db.query(DBHelper.TB_NAME_MON, columns, null, null, null, null, null);
}catch (SQLiteException e)
{
e.printStackTrace();
}
return null;
}
//ALL TRAINING TABLE TUE
public Cursor getAllTreningTue() {
try{
String[] columns = {DBHelper.ROW_ID_TUE, DBHelper.EXERCISE, DBHelper.WEIGHT, DBHelper.REPEAT, DBHelper.SERIES};
return db.query(DBHelper.TB_NAME_TUE, columns, null, null, null, null, null);
}catch (SQLiteException e)
{
e.printStackTrace();
}
return null;}}
MyAdapter.class
public class MyAdapter extends RecyclerView.Adapter<MyHolder> {
Context c;
ArrayList<Training> training;
public static String KEY_MON = "KEY_MON";
public static String KEY_TUE = "KEY_TUE";
public static String VALUE_MON = "10";
public static String VALUE_TUE = "20";
public <T extends Training> MyAdapter(Context c, ArrayList<Training> training) {
this.c = c;
this.training = training;
}
#Override
public MyHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View v = LayoutInflater.from(c).inflate(R.layout.card_view_model, parent, false);
return new MyHolder(v);
}
#Override
public void onBindViewHolder(MyHolder holder, final int position) {
holder.textViewModel.setText(training.get(position).getExercise());
holder.setItemClickListener(new ItemClickListener() {
#Override
public void onItemClick(View v) {
if (FirstActivity.WAS_RUNNING)
{Intent intent = new Intent(c, DetailActivity.class);
intent.putExtra(KEY_MON, VALUE_MON);
intent.putExtra("id", training.get(position).getId());
intent.putExtra("exercise", training.get(position).getExercise());
intent.putExtra("weight", training.get(position).getWeight());
intent.putExtra("repeat", training.get(position).getRepeat());
intent.putExtra("series", training.get(position).getSeries());
c.startActivity(intent);
} else if (FirstActivity.WAS_RUNNING)
{Intent intent2 = new Intent(c, DetailActivity.class);
intent2.putExtra(KEY_TUE, VALUE_TUE);
intent2.putExtra("id", training.get(position).getId());
intent2.putExtra("exercise", training.get(position).getExercise());
intent2.putExtra("weight", training.get(position).getWeight());
intent2.putExtra("repeat", training.get(position).getRepeat());
intent2.putExtra("series", training.get(position).getSeries());
c.startActivity(intent2);
}}});}
#Override
public int getItemCount() {
return training.size();}}
Training.class
public class Training {
int id;
String exercise;
String weight;
String repeat;
String series;
public Training(int id, String exercise, String weight, String repeat, String series) {
this.id = id;
this.exercise = exercise;
this.weight = weight;
this.repeat = repeat;
this.series = series;
}
public int getId() {return id;}
public void setId(int id) { this.id = id;}
public String getExercise() {return exercise; }
public void setExercise(String exercise) {this.exercise = exercise;}
public String getWeight() {return weight;}
public void setWeight(String weight) {this.weight = weight; }
public String getRepeat() {return repeat;}
public void setRepeat(String repeat) { this.repeat = repeat;}
public String getSeries() {return series;}
public void setSeries(String series) {this.series = series;}}

In your MyAdapter class, in the onItemClick method, within the onBindViewHolder method, the second check, for Tue processing, would never run.
You have :-
if (FirstActivity.WAS_RUNNING) {
.......
} else if (FirstActivity.WAS_RUNNING) {
.......
}
i.e. you are saying if FirstActivity was not running and the FirstActivity was running then do your stuff.
i.e. the else will only be entered if FirstActivity were not running, in which case the if (FirstActivity.WAS_RUNNING) would never be true.
Perhaps have 2 booleans MONDAY_WAS_RUNNING and TUESDAY_WAS RUNNING (you could use just the existing boolean by setting that to false in the buttonTue listener doing the Tuesday processing in the else (without an if) ).
e.g. :-
FirstActivity class :-
public static boolean MONDAY_WAS_RUNNING;
public static boolean TUESDAY_WAS_RUNNING;
..........
buttonMon.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
MONDAY_WAS_RUNNING = true;
TUESDAY_WAS_RUNNING = false;
Intent intent = new Intent(FirstActivity.this, MainActivity.class);
intent.putExtra(BUTTON_KEY1, BUTTON_VALUE);
startActivity(intent);
} });
buttonTue.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
TUESDAY_WAS_RUNNING = true;
MONDAY_WAS_RUNNING = false;
Intent i = new Intent(FirstActivity.this, MainActivity.class);
i.putExtra(BUTTON_KEY2, BUTTON_VALUE2);
startActivity(i);
} });}}
MyAdapter :-
#Override
public void onBindViewHolder(MyHolder holder, final int position) {
holder.textViewModel.setText(training.get(position).getExercise());
holder.setItemClickListener(new ItemClickListener() {
#Override
public void onItemClick(View v) {
if (FirstActivity.MONDAY_WAS_RUNNING)
{Intent intent = new Intent(c, DetailActivity.class);
intent.putExtra(KEY_MON, VALUE_MON);
intent.putExtra("id", training.get(position).getId());
intent.putExtra("exercise", training.get(position).getExercise());
intent.putExtra("weight", training.get(position).getWeight());
intent.putExtra("repeat", training.get(position).getRepeat());
intent.putExtra("series", training.get(position).getSeries());
c.startActivity(intent);
} else if (FirstActivity.TUESDAY_WAS_RUNNING)
{Intent intent2 = new Intent(c, DetailActivity.class);
intent2.putExtra(KEY_TUE, VALUE_TUE);
intent2.putExtra("id", training.get(position).getId());
intent2.putExtra("exercise", training.get(position).getExercise());
intent2.putExtra("weight", training.get(position).getWeight());
intent2.putExtra("repeat", training.get(position).getRepeat());
intent2.putExtra("series", training.get(position).getSeries());
c.startActivity(intent2);
}}});}
However I'd probably go for :-
#Override
public void onBindViewHolder(MyHolder holder, final int position) {
holder.textViewModel.setText(training.get(position).getExercise());
holder.setItemClickListener(new ItemClickListener() {
#Override
public void onItemClick(View v) {
Intent intent = new Intent(c, DetailActivity.class);
if (FirstActivity.MONDAY_WAS_RUNNING) {
intent.putExtra(KEY_MON, VALUE_MON);
} else {
intent.putExtra(KEY_TUE, VALUE_TUE);
}
intent.putExtra("id", training.get(position).getId());
intent.putExtra("exercise", training.get(position).getExercise());
intent.putExtra("weight", training.get(position).getWeight());
intent.putExtra("repeat", training.get(position).getRepeat());
intent.putExtra("series", training.get(position).getSeries());
c.startActivity(intent);
});
}
Note! the above code has not been checked, rather it is in-principle code

Values not inserting in database in android

Below given is my code.
I have 2 classes: Dbhelper.java and RssActivity.java
Basically I have made a students table and my code is creating the table, but values are not being inserted into it.
There are 2 textboxes: one is for entering name and other for entering roll no.
I want that the values should be inserted when the roll no lies in the range 00113202709 to 12013203709
I want that the values should be taken from the 2 textboxes editText1 and editText2 and be inserted in my database table.
Thanks for any help.
Dbhelper.java:
public class Dbhelper extends SQLiteOpenHelper {
//private static final String TAG = Dbhelper.class.getSimpleName();
public static final String db_name = "member.db";
public static final int db_version = 1;
public final String TABLE = "students";
public static final String C_ID = BaseColumns._ID;
public static final String C_Name = "SName";
public static final String C_ENo = "Enroll No";
private Context context;
public Dbhelper(Context context) {
super(context, db_name, null, db_version);
this.context=context;
}
#Override
public void onCreate(SQLiteDatabase db) {
String sql = String.format(
"create table %s (%s TEXT primary key, %s TEXT, %s TEXT )",
TABLE, C_ID, C_Name, C_ENo);
db.execSQL(sql);
}
#Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
// TODO Auto-generated method stub
db.execSQL("drop table if exists " + TABLE);
this.onCreate(db);
}
}
RssActivity.java:
public class RssActivity extends Activity implements OnClickListener {
TextView Title;
EditText Name, ENo;
Button but;
public String n1 = "001";
public String n2 = "120";
public String s1, s2, s3;
Dbhelper obj;
SQLiteDatabase db;
ContentValues val;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Title = (TextView) findViewById(R.id.textView1);
Name = (EditText) findViewById(R.id.editText2);
ENo = (EditText) findViewById(R.id.editText1);
but = (Button) findViewById(R.id.button1);
but.setOnClickListener(this);
obj=new Dbhelper(RssActivity.this);
db=obj.getWritableDatabase();
}
public void onClick(View v) {
String name = Name.getText().toString();
String enr = ENo.getText().toString();
try {
if (name.equals("")) {
Name.setError(getText(R.string.Empty));
Toast.makeText(this, R.string.Empty, Toast.LENGTH_LONG).show();
} else if ((ENo.getText().toString().length() == 0)) {
ENo.setError(getText(R.string.Empty));
Toast.makeText(this, R.string.Empty, Toast.LENGTH_LONG).show();
} else if ((ENo.getText().toString().length() < 11))
{
ENo.setError(getText(R.string.Invalid));
Toast.makeText(this, R.string.Invalid, Toast.LENGTH_LONG)
.show();
}
else
{
s1 = "000";
s2 = "00000000";
throw new Exception();
}
}
catch (Exception e) {
e.printStackTrace();
s1 = enr.substring(0, 3);
s2 = enr.substring(3, 11);
s3 = "13202709";
int r1 = s1.compareTo(n1);
int r2 = s1.compareTo(n2);
if (s2.equals(s3)) {
if (r1 == 0 || r2 == 0) {
Toast.makeText(this, R.string.Success, Toast.LENGTH_LONG)
.show();
val=new ContentValues();
val.clear();
val.put(obj.C_ID, s1);
val.put(obj.C_Name, name);
val.put(obj.C_ENo,enr);
db.insert(obj.TABLE, null, val);
db.close();
} else if (r1 < 0 || r2 > 0) {
Toast.makeText(this, R.string.Fail, Toast.LENGTH_LONG)
.show();
} else if (r1 > 0 || r2 < 0) {
Toast.makeText(this, R.string.Success, Toast.LENGTH_LONG)
.show();
}
}
else
Toast.makeText(this, R.string.Fail, Toast.LENGTH_LONG).show();
}
db.close();
obj.close();
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// TODO Auto-generated method stub
MenuInflater mi = getMenuInflater();
mi.inflate(R.menu.menu, menu);
return super.onCreateOptionsMenu(menu);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// TODO Auto-generated method stub
switch (item.getItemId()) {
case R.id.item1:
startActivity(new Intent(this, Welcomescreen.class));
this.finish();
break;
case R.id.item2:
this.finish();
break;
}
return super.onOptionsItemSelected(item);
}
#Override
public void onBackPressed() {
Intent intent = new Intent(this, Welcomescreen.class);
// intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(intent);
this.finish();
}
}

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