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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;
}
}

How to solve this error "cannot resolve method 'addData(java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String)'"?

I do not know why I can't add boolean insertData = dbHelper.addData(emailString, nameString,ageString, preferencesString,passwordString) where the addData keep showing error in the lines of code provided below. I wanted to add the if-else statement there is because I wanted it to make sure during the insert data process, a user has to fill in all the details in order to create an account, but not leaving blanks on any of the fields given for them to fill in. or I need to do it in another way? I'm still a newbie for android studio. Please help me.
private void getData() {
name = "" + Pname.getText().toString().trim();
age = "" + PAge.getText().toString().trim();
phone = "" + Pphone.getText().toString().trim();
preferenceselected = "" + Ppreferenceselected.getText().toString().trim();
String timeStamp = "" + System.currentTimeMillis();
long id = dbHelper.insertInfo(
"" + imageUri,
"" + name,
"" + age,
"" + phone,
"" + preferenceselected,
"" + timeStamp,
"" + timeStamp
);
String emailString = Pemail.getText().toString();
String nameString = Pname.getText().toString();
String ageString = PAge.getText().toString();
String preferencesString = Ppreferenceselected.getText().toString();
String passwordString = Ppassword.getText().toString();
boolean insertData = dbHelper.addData(emailString, nameString,ageString, preferencesString,passwordString);
if (insertData == true) {
Toast.makeText(MainActivity.this, "Account Created", Toast.LENGTH_LONG).show();
Intent goappsetting = new Intent(MainActivity.this,setting.class);
startActivity(goappsetting);
}else {
Toast.makeText(MainActivity.this, "Please do not leave any blanks or user exist", Toast.LENGTH_LONG).show();
}
Toast.makeText(this, "Account Created", Toast.LENGTH_SHORT).show();
}
this is my MainActivity.Java
public class MainActivity extends AppCompatActivity {
private DatabaseHelper dbHelper;
private ImageView pImageView;
private EditText Pemail, Pname, PAge, Pphone, Ppassword;
private TextView loginacclink, Ppreferenceselected;
Button createacc, preferencebtn;
ActionBar actionBar;
String[] categories;
boolean[] checkeditems;
ArrayList<Integer> mUserItems = new ArrayList<>();
private static final int CAMERA_REQUEST_CODE = 100;
private static final int STORAGE_REQUEST_CODE = 101;
private static final int IMAGE_PICK_CAMERA_CODE = 102;
private static final int IMAGE_PICK_GALLERY_CODE = 103;
private String[] cameraPermissions;
private String[] storagePermissions;
private Uri imageUri;
private String name, age, phone;
private String preferenceselected;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// this is the status bar
actionBar = getSupportActionBar();
actionBar.setTitle("Create Account");
// this is for the check list
categories = getResources().getStringArray(R.array.user_categories);
checkeditems = new boolean[categories.length];
// this is for the items in the xml file
pImageView = findViewById(R.id.personImage);
Pemail = findViewById(R.id.email);
Pname = findViewById(R.id.name);
PAge = findViewById(R.id.age);
Pphone = findViewById(R.id.phone);
Ppassword = findViewById(R.id.password);
createacc = findViewById(R.id.createacc);
preferencebtn = findViewById(R.id.preferencebtn);
loginacclink = findViewById(R.id.loginacclink);
Ppreferenceselected = (TextView) findViewById(R.id.preferenceselected);
dbHelper = new DatabaseHelper(this);
cameraPermissions = new String[]{Manifest.permission.CAMERA, Manifest.permission.WRITE_EXTERNAL_STORAGE};
storagePermissions = new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE};
pImageView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
imagePickDialog();
}
});
preferencebtn.setOnClickListener(new View.OnClickListener(){
#Override
public void onClick (View view){
AlertDialog.Builder mBuilder = new AlertDialog.Builder(MainActivity.this);
mBuilder.setTitle(R.string.dialog_title);
mBuilder.setMultiChoiceItems(categories, checkeditems, new DialogInterface.OnMultiChoiceClickListener() {
#Override
public void onClick(DialogInterface dialogInterface, int position, boolean isChecked) {
if (isChecked) {
if (!mUserItems.contains(position)) {
mUserItems.add(position);
}
} else if (mUserItems.contains(position)) {
mUserItems.remove(position);
}
}
});
mBuilder.setCancelable(false);
mBuilder.setPositiveButton(R.string.ok_label, new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialogInterface, int which) {
String item = "";
for (int i = 0; i < mUserItems.size(); i++) {
item = item + categories[mUserItems.get(i)];
if (i != mUserItems.size() - 1) {
item = item + ",";
}
}
Ppreferenceselected.setText(item);
}
});
mBuilder.setNegativeButton(R.string.dismiss_label, new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialogInterface, int i) {
dialogInterface.dismiss();
}
});
mBuilder.setNeutralButton(R.string.clear_all_label, new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialogInterface, int which) {
for (int i = 0; i < checkeditems.length; i++) {
checkeditems[i] = false;
mUserItems.clear();
Ppreferenceselected.setText("");
}
}
});
AlertDialog mDialog = mBuilder.create();
mDialog.show();
}
});
loginacclink.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent intent = new Intent(MainActivity.this, login.class);
startActivity(intent); }
});
createacc.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// insert data into db
getData();
}
});
}
private void getData() {
name = "" + Pname.getText().toString().trim();
age = "" + PAge.getText().toString().trim();
phone = "" + Pphone.getText().toString().trim();
preferenceselected = "" + Ppreferenceselected.getText().toString().trim();
String timeStamp = "" + System.currentTimeMillis();
long id = dbHelper.insertInfo(
"" + imageUri,
"" + name,
"" + age,
"" + phone,
"" + preferenceselected,
"" + timeStamp,
"" + timeStamp
);
String emailString = Pemail.getText().toString();
String nameString = Pname.getText().toString();
String ageString = PAge.getText().toString();
String preferencesString = Ppreferenceselected.getText().toString();
String passwordString = Ppassword.getText().toString();
boolean insertData = dbHelper.addData(emailString, nameString,ageString, preferencesString,passwordString);
if (insertData == true) {
Toast.makeText(MainActivity.this, "Account Created", Toast.LENGTH_LONG).show();
Intent goappsetting = new Intent(MainActivity.this,setting.class);
startActivity(goappsetting);
}else {
Toast.makeText(MainActivity.this, "Please do not leave any blanks or user exist", Toast.LENGTH_LONG).show();
}
Toast.makeText(this, "Account Created", Toast.LENGTH_SHORT).show();
}
private void imagePickDialog() {
String[] options = {"Camera", "Gallery"};
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Pick Image From");
builder.setItems(options, new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
if (which == 0) {
if (!checkCameraPermission()) {
requestCameraPermission();
}
else {
pickFromCamera();
}
}
else if (which == 1) {
if (!checkStoragePermission()) {
requestStoragePermission();
}
else {
pickFromGallery();
}
}
}
});
builder.create().show();
}
private boolean checkCameraPermission() {
boolean result = ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA)
== (PackageManager.PERMISSION_GRANTED);
boolean result1 = ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE)
== (PackageManager.PERMISSION_GRANTED);
return result && result1;
}
private void requestCameraPermission() {
ActivityCompat.requestPermissions(this, cameraPermissions, CAMERA_REQUEST_CODE);
}
private void pickFromGallery() {
Intent galleryIntent = new Intent(Intent.ACTION_PICK);
galleryIntent.setType("image/*");
startActivityForResult(galleryIntent, IMAGE_PICK_GALLERY_CODE);
}
private void pickFromCamera() {
ContentValues values = new ContentValues();
values.put(MediaStore.Images.Media.TITLE, "Image title");
values.put(MediaStore.Images.Media.DESCRIPTION, "Image description");
imageUri = getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);
Intent cameraIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);
startActivityForResult(cameraIntent, IMAGE_PICK_CAMERA_CODE);
}
private boolean checkStoragePermission() {
boolean result = ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE)
== (PackageManager.PERMISSION_GRANTED);
return result;
}
private void requestStoragePermission() {
ActivityCompat.requestPermissions(this, storagePermissions, STORAGE_REQUEST_CODE);
}
#Override
public void onRequestPermissionsResult(int requestCode, #NonNull String[] permissions, #NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
switch (requestCode) {
case CAMERA_REQUEST_CODE: {
if (grantResults.length>0) {
boolean cameraAccepted = grantResults[0] == PackageManager.PERMISSION_GRANTED;
boolean storageAccepted = grantResults[1] == PackageManager.PERMISSION_GRANTED;
if (cameraAccepted && storageAccepted) {
pickFromCamera();
}
else {
Toast.makeText(this, "Camera permission required!", Toast.LENGTH_SHORT).show();
}
}
}
break;
case STORAGE_REQUEST_CODE:{
if (grantResults.length>0) {
boolean storageAccepted = grantResults[0] == PackageManager.PERMISSION_GRANTED;
if (storageAccepted) {
pickFromGallery();
}
else {
Toast.makeText(this, "Storage permission required!", Toast.LENGTH_SHORT).show();
}
}
}
break;
}
}
#Override
protected void onActivityResult(int requestCode, int resultCode, #Nullable Intent data) {
if (resultCode == RESULT_OK) {
if (requestCode == IMAGE_PICK_GALLERY_CODE) {
CropImage.activity(data.getData())
.setGuidelines(CropImageView.Guidelines.ON)
.setAspectRatio(1, 1)
.start(this);
}
else if (requestCode == IMAGE_PICK_CAMERA_CODE) {
CropImage.activity(imageUri)
.setGuidelines(CropImageView.Guidelines.ON)
.setAspectRatio(1, 1)
.start(this);
}
else if (requestCode == CropImage.CROP_IMAGE_ACTIVITY_REQUEST_CODE) {
CropImage.ActivityResult result = CropImage.getActivityResult(data);
if (resultCode == RESULT_OK) {
Uri resultUri = result.getUri();
imageUri = resultUri;
pImageView.setImageURI(resultUri);
}
else if (resultCode == CropImage.CROP_IMAGE_ACTIVITY_RESULT_ERROR_CODE) {
Exception error = result.getError();
Toast.makeText(this, ""+error, Toast.LENGTH_SHORT).show();
}
}
}
super.onActivityResult(requestCode, resultCode, data);
}
}
This is my DatabaseHelper.Java
public class DatabaseHelper extends SQLiteOpenHelper {
public DatabaseHelper(#Nullable Context context) {
super(context, constants.DB_NAME, null, constants.DB_VERSION);
}
#Override
public void onCreate(SQLiteDatabase db) {
db.execSQL(constants.CREATE_TABLE);
}
#Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
db.execSQL("DROP TABLE IF EXISTS " + constants.TABLE_NAME);
onCreate(db);
}
public long insertInfo(String image, String name, String age, String phone, String preference, String addTimeStamp, String updateTimeStamp) {
SQLiteDatabase db = this.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(constants.C_NAME, name);
values.put(constants.C_AGE, age);
values.put(constants.C_PHONE, phone);
values.put(constants.C_PREFERENCES, preference);
values.put(constants.C_IMAGE, image);
values.put(constants.C_Add_TIMESTAMP, addTimeStamp);
values.put(constants.C_UPDATED_TIMESTAMP, updateTimeStamp);
long id = db.insert(constants.TABLE_NAME, null, values);
db.close();
return id;
}
}
This is constance.Java
public class constants {
public static final String DB_NAME = "MMTA_DB";
public static final int DB_VERSION = 1;
public static final String TABLE_NAME = "USER_TABLE";
public static final String C_EMAIL = "EMAIL";
public static final String C_NAME = "NAME";
public static final String C_AGE = "AGE";
public static final String C_PHONE = "PHONE";
public static final String C_PASSWORD = "PASSWORD";
public static final String C_PREFERENCES = "PREFERENCES";
public static final String C_IMAGE = "IMAGE";
public static final String C_Add_TIMESTAMP = "TIMESTAMP";
public static final String C_UPDATED_TIMESTAMP = "UPDATED_TIMESTAMP";
public static final String CREATE_TABLE = "CREATE TABLE " + TABLE_NAME + " ("
+ C_EMAIL + " TEXT PRIMARY KEY ,"
+ C_NAME + " TEXT,"
+ C_AGE + " TEXT,"
+ C_PHONE + " TEXT,"
+ C_PASSWORD + " TEXT,"
+ C_PREFERENCES + " TEXT,"
+ C_IMAGE + " TEXT,"
+ C_Add_TIMESTAMP + " TEXT,"
+ C_UPDATED_TIMESTAMP + " TEXT"
+ ");";
}

The method addData(String,String,String,String,String) is missing from DatabaseHelper class. Please add this method in that class.
Update the DatabaseHelper class.
public class DatabaseHelper extends SQLiteOpenHelper {
public DatabaseHelper(#Nullable Context context) {
super(context, constants.DB_NAME, null, constants.DB_VERSION);
}
#Override
public void onCreate(SQLiteDatabase db) {
db.execSQL(constants.CREATE_TABLE);
}
#Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
db.execSQL("DROP TABLE IF EXISTS " + constants.TABLE_NAME);
onCreate(db);
}
public long insertInfo(String image, String name, String age, String phone, String preference, String addTimeStamp, String updateTimeStamp) {
SQLiteDatabase db = this.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(constants.C_NAME, name);
values.put(constants.C_AGE, age);
values.put(constants.C_PHONE, phone);
values.put(constants.C_PREFERENCES, preference);
values.put(constants.C_IMAGE, image);
values.put(constants.C_Add_TIMESTAMP, addTimeStamp);
values.put(constants.C_UPDATED_TIMESTAMP, updateTimeStamp);
long id = db.insert(constants.TABLE_NAME, null, values);
db.close();
return id;
}
//add the method
public boolean addData(String parameter1,String parameter2,String parameter3,String parameter4,String parameter5) {
// put here your logic
return false;
}
}

My images doesn't get save in my database

I can make my database save images. They are display in the listView
but when i close the app, the data are erased.
DataBaseHandler.java:
public class DataBaseHandler extends SQLiteOpenHelper {
private static final int DATABASE_VERSION = 2;
public static final String DATABASE_NAME = "Preguntas_y_Respuestas_Manager",
TABLE_PyR = "PreguntasYRespuestas",
KEY_ID = "id",
KEY_PREGUNTA = "pregunta",
KEY_RESPUESTA = "respuesta",
KEY_IMAGEURI = "imagen";
public DataBaseHandler(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
#Override
public void onCreate(SQLiteDatabase db) {
db.execSQL("CREATE TABLE " + TABLE_PyR + "(" + KEY_ID + " INTEGER PRIMARY KEY AUTOINCREMENT," + KEY_PREGUNTA + " TEXT," + KEY_RESPUESTA + " TEXT, " + KEY_IMAGEURI + " TEXT)");
}
#Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
db.execSQL("DROP TABLE IF EXISTS " + TABLE_PyR);
onCreate(db);
}
public void createPregunta_y_Respuesta(PreguntasYRespuestas pYr) {
SQLiteDatabase db = getWritableDatabase();
ContentValues values = new ContentValues();
values.put(KEY_PREGUNTA, pYr.getPregunta());
values.put(KEY_RESPUESTA, pYr.getRespuesta());
values.put(KEY_IMAGEURI,pYr.get_imageUri().toString());
db.insert(TABLE_PyR, null, values);
db.close();
}
public PreguntasYRespuestas getPyR(int id) {
SQLiteDatabase db = getReadableDatabase();
Cursor cursor = db.query(TABLE_PyR, new String[]{KEY_ID, KEY_PREGUNTA, KEY_RESPUESTA, KEY_IMAGEURI}, KEY_ID + "=?", new String[]{String.valueOf(id)}, null, null, null, null);
if (cursor != null)
cursor.moveToFirst();
PreguntasYRespuestas preg_y_resp = new PreguntasYRespuestas(Integer.parseInt(cursor.getString(0)), cursor.getString(1), cursor.getString(2), Uri.parse(cursor.getString(3)));
db.close();
return preg_y_resp;
}
public void deletePregunta(PreguntasYRespuestas pyr) {
SQLiteDatabase db = getWritableDatabase();
int cant = db.delete("PreguntasYRespuestas", "id=" + KEY_ID, null);
}
public int getPreguntasCount() {
SQLiteDatabase db = getReadableDatabase();
Cursor cursor = db.rawQuery("SELECT * FROM " + TABLE_PyR, null);
int count = cursor.getCount();
db.close();
cursor.close();
return count;
}
public int UpdatePregunta(PreguntasYRespuestas pyr) {
SQLiteDatabase db = getReadableDatabase();
ContentValues values = new ContentValues();
values.put(KEY_PREGUNTA, pyr.getPregunta());
values.put(KEY_RESPUESTA, pyr.getRespuesta());
values.put(KEY_IMAGEURI, pyr.get_imageUri().toString());
int rowsAffected = db.update(TABLE_PyR, values, KEY_ID + "=?", new String[]{String.valueOf(pyr.getId())});
db.close();
return rowsAffected;
}
public List<PreguntasYRespuestas> getAllPreguntas() {
List<PreguntasYRespuestas> pyr = new ArrayList<PreguntasYRespuestas>();
SQLiteDatabase db = this.getWritableDatabase();
Cursor cursor = db.rawQuery("SELECT * FROM " + TABLE_PyR, null);
if (cursor.moveToFirst()) {
do {
pyr.add(new PreguntasYRespuestas(Integer.parseInt(cursor.getString(0)), cursor.getString(1), cursor.getString(2),Uri.parse(cursor.getString(3))));
}
while (cursor.moveToNext());
}
cursor.close();
db.close();
return pyr;
}
}
RegistroDePreguntas_Cuestionario.java:
public class RegistroDePreguntas_Cuestionario extends AppCompatActivity {
private static final int EDIT = 0, DELETE = 1;
public Button agregar, iniciar;
public ImageView imagen;
public EditText et_pregunta, et_respuesta;
public ListView listView_preguntas;
Uri imageUri = null;
DataBaseHandler dbHandler;
int longClickedItemIndex;
ArrayAdapter<PreguntasYRespuestas> preguntasAdapter;
List<PreguntasYRespuestas> mListaPreguntas = new ArrayList<>();
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_registro_de_preguntas__cuestionario);
agregar = (Button) findViewById(R.id.agregar);
et_pregunta = (EditText) findViewById(R.id.Et_pregunta);
et_respuesta = (EditText) findViewById(R.id.Et_respuesta);
imagen = (ImageView)findViewById(R.id.imageView);
iniciar = (Button) findViewById(R.id.iniciar);
listView_preguntas = (ListView) findViewById(R.id.listview_preguntas);
dbHandler = new DataBaseHandler(getApplicationContext());
TabHost tabHost = (TabHost) findViewById(R.id.tabHost_Preg_Cuest);
tabHost.setup();
TabHost.TabSpec tabSpec = tabHost.newTabSpec("creator");
tabSpec.setContent(R.id.Creador);
tabSpec.setIndicator("Crear");
tabHost.addTab(tabSpec);
tabSpec = tabHost.newTabSpec("visualizacion");
tabSpec.setContent(R.id.Visualizacion);
tabSpec.setIndicator("Ver");
tabHost.addTab(tabSpec);
registerForContextMenu(listView_preguntas);
listView_preguntas.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
#Override
public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
longClickedItemIndex = position;
return false;
}
});
iniciar.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
startActivity(new Intent(RegistroDePreguntas_Cuestionario.this, ActivityCuestionario.class));
}
});
agregar.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
PreguntasYRespuestas pyr = new PreguntasYRespuestas(dbHandler.getPreguntasCount(), String.valueOf(et_pregunta.getText()), String.valueOf(et_respuesta.getText()),imageUri);
if (!preguntaExists(pyr)) {
dbHandler.createPregunta_y_Respuesta(pyr);
mListaPreguntas.add(pyr);
preguntasAdapter.notifyDataSetChanged();
Toast.makeText(getApplicationContext(), "Tu pregunta ha sido añadida", Toast.LENGTH_SHORT).show();
et_pregunta.setText("");
et_respuesta.setText("");
imageUri = null;
return;
}
Toast.makeText(getApplicationContext(), "Ya existe una pregunta igual, no pueden haber 2 preguntas iguales", Toast.LENGTH_SHORT).show();
}
});
imagen.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent,"Select Contact Image"),1);
}
});
et_pregunta.addTextChangedListener(new TextWatcher() {
#Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
#Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
agregar.setEnabled(String.valueOf(et_pregunta.getText()).trim().length() > 0);
}
#Override
public void afterTextChanged(Editable s) {
}
});
if (dbHandler.getPreguntasCount() != 0) {
mListaPreguntas.addAll(dbHandler.getAllPreguntas());
populateList();
}
}
public void onCreateContextMenu(ContextMenu menu, View view, ContextMenu.ContextMenuInfo menuInfo) {
super.onCreateContextMenu(menu, view, menuInfo);
menu.setHeaderIcon(R.drawable.edit);
//Icon made by [http://www.flaticon.com/authors/madebyoliver] from www.flaticon.com
menu.setHeaderTitle("Opciones");
menu.add(Menu.NONE, DELETE, menu.NONE, "Eliminar pregunta");
}
public void onActivityResult(int reqCode, int resCode, Intent data){
if (resCode==RESULT_OK){
if (reqCode==1){
imageUri = data.getData();
imagen.setImageURI(data.getData());
}
}
}
public boolean onContextItemSelected(MenuItem item) {
switch (item.getItemId()) {
case EDIT:
dbHandler.UpdatePregunta(mListaPreguntas.get(longClickedItemIndex));
preguntasAdapter.notifyDataSetChanged();
break;
case DELETE:
dbHandler.deletePregunta(mListaPreguntas.get(longClickedItemIndex));
mListaPreguntas.remove(longClickedItemIndex);
preguntasAdapter.notifyDataSetChanged();
break;
}
return super.onContextItemSelected(item);
}
private boolean preguntaExists(PreguntasYRespuestas pyr) {
String pregunta = pyr.getPregunta();
int preguntaCount = mListaPreguntas.size();
for (int i = 0; i < preguntaCount; i++) {
if (pregunta.compareToIgnoreCase(mListaPreguntas.get(i).getPregunta()) == 0)
return true;
}
return false;
}
public void populateList() {
preguntasAdapter = new mListAdapter();
listView_preguntas.setAdapter(preguntasAdapter);
}
public class mListAdapter extends ArrayAdapter<PreguntasYRespuestas> {
public mListAdapter() {
super(RegistroDePreguntas_Cuestionario.this, R.layout.listview_item, mListaPreguntas);
}
#Override
public View getView(int position, View view, ViewGroup parent) {
if (view == null)
view = getLayoutInflater().inflate(R.layout.listview_item, parent, false);
PreguntasYRespuestas currentPregunta = mListaPreguntas.get(position);
TextView tv_pregunta = (TextView) view.findViewById(R.id.tv_pregunta);
tv_pregunta.setText(currentPregunta.getPregunta());
TextView tv_respuesta = (TextView) view.findViewById(R.id.tv_respuesta);
tv_respuesta.setText(currentPregunta.getRespuesta());
ImageView imageView_Lista = (ImageView) view.findViewById(R.id.imageView_Lista);
imageView_Lista.setImageURI(currentPregunta.get_imageUri());
return view;
}
}
}

no columns in mysqlite database

I made an android eclipse project that uses SQLite as a database.
Some errors occur when I try to run the project on the phone. When I click the view button(to view my database), The application says:
no columns in my database.
Why does it happen?
Data Layer:
public class Translator {
public static final String KEY_ROWID ="_id";
public static final String KEY_DESC ="page_desc";
private static final String DATABASE_NAME ="Translatordb";
private static final String DATABASE_TABLE ="pageTable";
private static final int DATABASE_VERSION = 1;
private DbHelper ourHelper;
private final Context ourContext;
private SQLiteDatabase ourDatabase;
public static class DbHelper extends SQLiteOpenHelper{
public DbHelper(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
// TODO Auto-generated constructor stub
}
#Override
public void onCreate(SQLiteDatabase db) {
// TODO Auto-generated method stub
db.execSQL("CREATE TABLE " + DATABASE_TABLE + " (" +
KEY_ROWID + " STRING PRIMARY KEY, " +
KEY_DESC + " TEXT NOT NULL);"
);
}
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
// TODO Auto-generated method stub
db.execSQL("DROP TABLE IF EXISTS " + DATABASE_TABLE);
onCreate(db);
}
}
public Translator(Context c){
ourContext = c;
}
public Translator open() throws SQLException{
ourHelper = new DbHelper(ourContext);
ourDatabase = ourHelper.getWritableDatabase();
return this;
}
public void close(){
ourHelper.close();
}
public long createEntry(String id, String description){
ContentValues cv = new ContentValues();
cv.put(KEY_ROWID,id);
cv.put(KEY_DESC,description);
return ourDatabase.insert(DATABASE_TABLE,null, cv);
}
public long createEntry1(String id, String description){
ContentValues cv = new ContentValues();
cv.put(KEY_ROWID,"P01");
cv.put(KEY_DESC,"Snow White");
return ourDatabase.insert(DATABASE_TABLE,null, cv);
}
public String getData() {
// TODO Auto-generated method stub
String[] columns = new String[]{KEY_ROWID,KEY_DESC};
Cursor c = ourDatabase.query(DATABASE_TABLE, columns,null,null,null,null,null);
String result =" ";
int iRow = c.getColumnIndex(KEY_ROWID);
int iDescription = c.getColumnIndex(KEY_DESC);
for (c.moveToFirst(); !c.isAfterLast(); c.moveToNext()){
result =result + c.getString(iRow)+ " " +c.getString(iDescription) +" \n";
}
return result;
}
main Activity.java
public class MainActivity extends Activity implements OnClickListener {
static final String ACTION_SCAN = "com.google.zxing.client.android.SCAN";
Button view;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
view =(Button) findViewById(R.id.viewSQL);
view.setOnClickListener(this);
}
//product qr code mode
public void scanQR(View v) {
try {
//start the scanning activity from the com.google.zxing.client.android.SCAN intent
Intent intent = new Intent(ACTION_SCAN);
intent.putExtra("SCAN_MODE", "QR_CODE_MODE");
startActivityForResult(intent, 0);
} catch (ActivityNotFoundException anfe) {
//on catch, show the download dialog
showDialog(MainActivity.this, "No Scanner Found", "Download a scanner code activity?", "Yes", "No").show();
}
}
//alert dialog for downloadDialog
private static AlertDialog showDialog(final Activity act, CharSequence title, CharSequence message, CharSequence buttonYes, CharSequence buttonNo) {
AlertDialog.Builder downloadDialog = new AlertDialog.Builder(act);
downloadDialog.setTitle(title);
downloadDialog.setMessage(message);
downloadDialog.setPositiveButton(buttonYes, new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialogInterface, int i) {
Uri uri = Uri.parse("market://search?q=pname:" + "com.google.zxing.client.android");
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
try {
act.startActivity(intent);
} catch (ActivityNotFoundException anfe) {
}
}
});
downloadDialog.setNegativeButton(buttonNo, new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialogInterface, int i) {
}
});
return downloadDialog.show();
}
//on ActivityResult method
#Override
public void onActivityResult(int requestCode, int resultCode, Intent intent) {
if (requestCode == 0) {
if (resultCode == RESULT_OK) {
//get the extras that are returned from the intent
String contents = intent.getStringExtra("SCAN_RESULT");
String format = intent.getStringExtra("SCAN_RESULT_FORMAT");
Toast toast = Toast.makeText(this, "Content:" + contents + " Format:" + format, Toast.LENGTH_LONG);
toast.show();
}
}
}
public void onClick(View arg0) {
switch(arg0.getId()){
case R.id.viewSQL:
Translator entry = new Translator(MainActivity.this);
entry.open();
entry.close();
Intent i = new Intent("com.example.scanner.SQLVIEW");
startActivity(i);
break;
}
}
SQLView.java
public class SQLView extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.sqlview);
TextView tv =(TextView) findViewById(R.id.tvSQLint);
Translator info = new Translator(this);
info.open();
String data = info.getData();
info.close();
tv.setText(data);
}
this is my error:
java.lang.RuntimeException: Unable to start activity
ComponentInfo{com.example.scanner/com.example.scanner.SQLView}:
android.database.sqlite.SQLiteException: no such column: page_desc
(code 1):, while compiling: SELECT _id, page_desc FROM pageTable
What is my error?

Try this
public class Translator extends SQLiteOpenHelper {
private static final String LOGCAT = null;
public Translator(Context applicationcontext) {
super(applicationcontext, "androidsqlite.db", null, 1);
Log.d(LOGCAT, "Created Translator Database");
}
public static final String KEY_ROWID = "_id";
public static final String KEY_DESC = "page_desc";
private static final String DATABASE_TABLE = "pageTable";
private SQLiteDatabase ourDatabase;
#Override
public void onCreate(SQLiteDatabase db) {
// TODO Auto-generated method stub
db.execSQL("CREATE TABLE " + DATABASE_TABLE + " (" + KEY_ROWID
+ " STRING PRIMARY KEY, " + KEY_DESC + " TEXT NOT NULL);");
}
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
// TODO Auto-generated method stub
db.execSQL("DROP TABLE IF EXISTS " + DATABASE_TABLE);
onCreate(db);
}
public long createEntry(String id, String description) {
ContentValues cv = new ContentValues();
cv.put(KEY_ROWID, id);
cv.put(KEY_DESC, description);
return ourDatabase.insert(DATABASE_TABLE, null, cv);
}
public long createEntry1(String id, String description) {
ContentValues cv = new ContentValues();
cv.put(KEY_ROWID, "P01");
cv.put(KEY_DESC, "Snow White");
return ourDatabase.insert(DATABASE_TABLE, null, cv);
}
public String getData() {
// TODO Auto-generated method stub
String[] columns = new String[] { KEY_ROWID, KEY_DESC };
Cursor c = ourDatabase.query(DATABASE_TABLE, columns, null, null, null,
null, null);
String result = " ";
int iRow = c.getColumnIndex(KEY_ROWID);
int iDescription = c.getColumnIndex(KEY_DESC);
for (c.moveToFirst(); !c.isAfterLast(); c.moveToNext()) {
result = result + c.getString(iRow) + " "
+ c.getString(iDescription) + " \n";
}
return result;
}
}

how to upload and retrieve image using sql in eclipse

I want to have an option for user to upload two images and retrieve image after saved on database, i am new to android programming, I am trying this since four days, googled alot, but could not find out exact solution.
private SQLiteStatement insertStmt;
private static final String INSERT = "insert into " + TABLE_NAME
+ " (name,number,skypeId,address) values (?,?,?,?)";
public DataManipulator(Context context) {
DataManipulator.context = context;
OpenHelper openHelper = new OpenHelper(DataManipulator.context);
DataManipulator.db = openHelper.getWritableDatabase();
this.insertStmt = DataManipulator.db.compileStatement(INSERT);
}
public long insert(String name, String number, String skypeId,
String address) {
this.insertStmt.bindString(1, name);
this.insertStmt.bindString(2, number);
this.insertStmt.bindString(3, skypeId);
this.insertStmt.bindString(4, address);
return this.insertStmt.executeInsert();
}
public void deleteAll() {
db.delete(TABLE_NAME, null, null);
}
public List<String[]> selectAll() {
List<String[]> list = new ArrayList<String[]>();
Cursor cursor = db.query(TABLE_NAME, new String[] { "id", "name",
"number", "skypeId", "address" }, null, null, null, null,
"name asc");
int x = 0;
if (cursor.moveToFirst()) {
do {
String[] b1 = new String[] { cursor.getString(0),
cursor.getString(1), cursor.getString(2),
cursor.getString(3), cursor.getString(4) };
list.add(b1);
x = x + 1;
} while (cursor.moveToNext());
}
if (cursor != null && !cursor.isClosed()) {
cursor.close();
}
cursor.close();
return list;
}
public void delete(int rowId) {
db.delete(TABLE_NAME, null, null);
}
private static class OpenHelper extends SQLiteOpenHelper {
OpenHelper(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
#Override
public void onCreate(SQLiteDatabase db) {
db.execSQL("CREATE TABLE "
+ TABLE_NAME
+ " (id INTEGER PRIMARY KEY, name TEXT, number TEXT, skypeId TEXT, address TEXT)");
}
#Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
db.execSQL("DROP TABLE IF EXISTS " + TABLE_NAME);
onCreate(db);
}
}
}
my SaveData.java file
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.save);
View add = findViewById(R.id.Button01add);
add.setOnClickListener(this);
View home = findViewById(R.id.Button01home);
home.setOnClickListener(this);
}
public void onClick(View v) {
switch (v.getId()) {
case R.id.Button01home:
Intent i = new Intent(this, DatabaseSample.class);
startActivity(i);
break;
case R.id.Button01add:
View editText1 = (EditText) findViewById(R.id.name);
View editText2 = (EditText) findViewById(R.id.number);
View editText3 = (EditText) findViewById(R.id.skypeId);
View editText4 = (EditText) findViewById(R.id.address);
String myEditText1 = ((TextView) editText1).getText().toString();` `
String myEditText2 = ((TextView) editText2).getText().toString();
String myEditText3 = ((TextView) editText3).getText().toString();
String myEditText4 = ((TextView) editText4).getText().toString();
this.dh = new DataManipulator(this);
this.dh.insert(myEditText1, myEditText2, myEditText3, myEditText4);
showDialog(DIALOG_ID);
break;
}
}
protected final Dialog onCreateDialog(final int id) {
Dialog dialog = null;
switch (id) {
case DIALOG_ID:
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage(
"Information saved successfully ! Add Another Info?")
.setCancelable(false)
.setPositiveButton("No",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int id) {
SaveData.this.finish();
}
})
.setNegativeButton("Yes",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int id) {
dialog.cancel();
}
});
AlertDialog alert = builder.create();
dialog = alert;
break;
default:
}
return dialog;
}
}
and CheckData.java
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.check);
dm = new DataManipulator(this);
names2 = dm.selectAll();
stg1 = new String[names2.size()];
int x = 0;
String stg;
for (String[] name : names2) {
stg = name[1] + " - " + name[2] + " - " + name[3] + " - " + name[4];
stg1[x] = stg;
x++;
}
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, stg1);
this.setListAdapter(adapter);
selection = (TextView) findViewById(R.id.selection);
}
public void onListItemClick(ListView parent, View v, int position, long id) {
selection.setText(stg1[position]);
}
}

For saving image in database table you need to convert it to byte array and then you can put it in a contentValue. You can make a method for saving image as shown below-
protected long saveBitmap(SQLiteDatabase database, Bitmap bmp)
{
int size = bmp.getRowBytes() * bmp.getHeight();
ByteBuffer b = ByteBuffer.allocate(size); bmp.copyPixelsToBuffer(b);
byte[] bytes = new byte[size];
b.get(bytes, 0, bytes.length);
ContentValues cv=new ContentValues();
cv.put(CHUNK, bytes);
this.id= database.insert(TABLE, null, cv);
}
For fetching back that record you can do it like this-
byte[] bb = cursor.getBlob(cursor.getColumnIndex(/*Your column index for saving image*/));