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;
}
}
Related
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
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;
}
}
}
I'm beginner and I'm trying to to load contact from database by clicking a button in a fragment, and then save outgoing call also in database?
ContactsFragemt.java
public class ContactsFragment extends Fragment implements LoaderManager.LoaderCallbacks<Cursor>
{
SimpleCursorAdapter adapter;
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
final View view = inflater.inflate(R.layout.contact, container, false);
final Button Button = (Button) view.findViewById(R.id.load_button);
final SQLDataBaseAdapter sqlDataBaseHelper = new SQLDataBaseAdapter(getActivity());
//*************************** method for population main contacts listView *********************************//
Button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Cursor c = getActivity().getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, null, null, null);
while (c.moveToNext()) {
String contactName = c.getString(c.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
String phNumber = c.getString(c.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
String image_uri = c.getString(c.getColumnIndex(ContactsContract.CommonDataKinds.Phone.PHOTO_URI));
int position = 0;
int exist = 0;
boolean imageComp, nameComp;
String[] contactsData = sqlDataBaseHelper.getContacts(position);
while (exist == 0 && (contactsData[0] != (null) || contactsData[1] != (null) || contactsData[2] != (null))) // we are checking that if it is reached at the end or not
{
if (contactsData[1] != null) {
if (contactsData[1].equals(phNumber)) // will make update if we got matched with phone number and if any of ther other parameter is changed
{
if (contactsData[2] == null) {
// pic is null saved in data base and
if (image_uri != null) {
sqlDataBaseHelper.updateTable1(null, null, null, null, contactsData[2], image_uri);
// then update new pic here
}
} else // but if their is pic
if (!contactsData[2].equals(image_uri)) { // and he/she update pic with a brand new picture then
sqlDataBaseHelper.updateTable1(null, null, null, null, contactsData[2], image_uri);
}
if (contactsData[0] == null) {
// name is null saved in data base and
if (contactName != null) {
sqlDataBaseHelper.updateTable1(contactsData[0], contactName, null, null, null, null);
// then update new name here
}
} else // if name was saved previously in based
if (!contactsData[0].equals(contactName)) { //but the guy changed his name so
sqlDataBaseHelper.updateTable1(contactsData[0], contactName, null, null, null, null);
}
exist = 1;
}
}
position++;
contactsData = sqlDataBaseHelper.getContacts(position);
}
if (exist == 0) // means if number is not in the list then make update
{
long id = sqlDataBaseHelper.insertData1(contactName, phNumber, image_uri);
if (id < 0) {
Toast.makeText(getActivity(), "Data1 Insertion is unsuccessful", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(getActivity(), "Data1 Insertion is successful", Toast.LENGTH_SHORT).show();
}
}
}
String[] fromFieldNames = sqlDataBaseHelper.fromFieldName1();
int[] toViewIDs = sqlDataBaseHelper.toIds1();
adapter = new SimpleCursorAdapter(getActivity(),
R.layout.list_items_view,
null,
fromFieldNames,
toViewIDs,0);
ListView mainList = (ListView) view.findViewById(R.id.main_list_view);
mainList.setAdapter(adapter);
getLoaderManager().initLoader(0, null, ContactsFragment.this);
}
});
}
#Override
public Loader<Cursor> onCreateLoader(int id, Bundle args) {
Uri uri = ContentProvider.CONTENT_URI;
return new CursorLoader(getActivity(), uri, null, null, null, null);
}
#Override
public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
adapter.swapCursor(data);
}
#Override
public void onLoaderReset(Loader loader) {
adapter.swapCursor(null);
}
}
SimpleCursorAdapter.java
public class SimpleCursorAdapter extends android.widget.SimpleCursorAdapter {
Context mcontext;
String[] values;
Cursor cursor;
int[] to;
public SimpleCursorAdapter(Context context, int layout, Cursor c, String[] from, int[] to) {
super(context, layout, c, from, to);
this.values = from;
this.to = to;
this.cursor = c;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = (LayoutInflater) mcontext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View view = inflater.inflate(list_items_view, parent, false);
final ImageButton call = (ImageButton) view.findViewById(R.id.call);
ImageButton sms = (ImageButton) view.findViewById(R.id.sms);
final TextView contact_no = (TextView) view.findViewById(R.id.contact_no);
final TextView contactName = (TextView) view.findViewById(R.id.contact_name);
ImageView contactImage = (ImageView) view.findViewById(R.id.contact_image);
final SQLDataBaseAdapter sqlDataBaseHelper = new SQLDataBaseAdapter(mcontext);
//********************************** method for calling from app****************************/
call.setOnClickListener(new View.OnClickListener() { //when phone button is clicked
public void onClick(View v) {
Intent callIntent = new Intent(Intent.ACTION_CALL, Uri.parse(String.valueOf("tel:" + contact_no.getText().toString())));
callIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);//*/
if (ActivityCompat.checkSelfPermission(mcontext, Manifest.permission.CALL_PHONE) != PackageManager.PERMISSION_GRANTED) {
// TODO: Consider calling
// ActivityCompat#requestPermissions
// here to request the missing permissions, and then overriding
// public void onRequestPermissionsResult(int requestCode, String[] permissions,
// int[] grantResults)
// to handle the case where the user grants the permission. See the documentation
// for ActivityCompat#requestPermissions for more details.
return;
}
mcontext.startActivity(callIntent);//*/
Calendar rightNow = Calendar.getInstance();
int hourOfDay = rightNow.get(Calendar.HOUR_OF_DAY);
String AM_PM;
if (hourOfDay > 12) { // for 12 hours format
hourOfDay = hourOfDay - 12;
AM_PM = "PM";
} else {
AM_PM = "AM";
}
String time = Integer.toString(hourOfDay)
+ " : " + Integer.toString(rightNow.get(Calendar.MINUTE))
+ " " + AM_PM;
String date = Integer.toString(rightNow.get(Calendar.DAY_OF_MONTH))
+ "/" + Integer.toString(rightNow.get(Calendar.MONTH) + 1)
+ "/" + Integer.toString(rightNow.get(Calendar.YEAR));
String name = contactName.getText().toString();
Cursor c = mcontext.getContentResolver().query(CallLog.Calls.CONTENT_URI, null, null, null, null);
if (c.moveToNext() == true) {
String duration = c.getString(c.getColumnIndex(CallLog.Calls.DURATION));
String pic = Uri.parse("android.resource://com.example.asim.simpleviewpager/drawable/outgoing_call.png").toString();
long id = sqlDataBaseHelper.insertData2(name, duration, pic, time, date);
if (id < 0) {
Toast.makeText(mcontext, "Data2 Insertion is unsuccessful", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(mcontext, "Data2 Insertion is successful", Toast.LENGTH_SHORT).show();
}
}
c.close();
}
});
//********************************** method for sending message from app****************************//
sms.setOnClickListener(new View.OnClickListener() { //when sms button is clicked
#Override
public void onClick(View v) {
Intent smsIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("sms:" + contact_no.getText().toString()));
smsIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
mcontext.startActivity(smsIntent);
Calendar rightNow = Calendar.getInstance();
int hourOfDay = rightNow.get(Calendar.HOUR_OF_DAY);
String AM_PM;
if (hourOfDay > 12) {
hourOfDay = hourOfDay - 12;
AM_PM = "PM";
} else {
AM_PM = "AM";
}
String time = Integer.toString(hourOfDay)
+ " : " + Integer.toString(rightNow.get(Calendar.MINUTE))
+ " " + AM_PM;
String date = Integer.toString(rightNow.get(Calendar.DAY_OF_MONTH))
+ "/" + Integer.toString(rightNow.get(Calendar.MONTH) + 1)
+ "/" + Integer.toString(rightNow.get(Calendar.YEAR));
String name = contactName.getText().toString();
String duration = "000 000 000";
String pic = Uri.parse("android.resource://com.example.asim.simpleviewpager/drawable/message_sent.png").toString();
long id = sqlDataBaseHelper.insertData2(name, duration, pic, time, date);
if (id < 0) {
Toast.makeText(mcontext, "Data2 Insertion is unsuccessful", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(mcontext, "Data2 Insertion is successful", Toast.LENGTH_SHORT).show();
}
}
});
//************************** Reading contact from SQLDataBase for each item*************************************//
String[] contactsData = sqlDataBaseHelper.getContacts(position);
if (contactsData[0] != (null)) {
contactName.setText(contactsData[0]);
contact_no.setText(contactsData[1]);
if (contactsData[2] == (null)) {
contactImage.setImageResource(R.drawable.w4j8n);
} else {
contactImage.setImageURI(Uri.parse(contactsData[2]));
}
}//*/
return view;
}
#Override
public void bindView(View view, Context context, Cursor cursor) {
}
}
ContentProvider.java
public class ContentProvider extends android.content.ContentProvider {
public static final String PROVIDER_NAME = "com.example.asim.simpleviewpager"; //.contentprovider
public static final Uri CONTENT_URI = Uri.parse("content://" + PROVIDER_NAME + "/ContactsDataBase");
private static final int CONTENTPROVIDERS = 1;
private static final UriMatcher uriMatcher ;
static {
uriMatcher = new UriMatcher(UriMatcher.NO_MATCH);
uriMatcher.addURI(PROVIDER_NAME, "ContactsDataBase", CONTENTPROVIDERS);
}
SQLDataBaseAdapter sqlDataBaseAdapter;
#Override
public boolean onCreate() {
sqlDataBaseAdapter = new SQLDataBaseAdapter(getContext());
return true;
}
#Nullable
#Override
public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
if (uriMatcher.match(uri) == CONTENTPROVIDERS) {
return sqlDataBaseAdapter.getAllContacts();
} else {
return null;
}
}
#Nullable
#Override
public String getType(Uri uri) {
return null;
}
#Nullable
#Override
public Uri insert(Uri uri, ContentValues values) {
return null;
}
#Override
public int delete(Uri uri, String selection, String[] selectionArgs) {
return 0;
}
#Override
public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
return 0;
}
}
SQLDataBaseAdapter.java
public class SQLDataBaseAdapter {
SQLDataBaseHelper sqlDataBaseHelper;
public SQLDataBaseAdapter(Context context){
sqlDataBaseHelper = new SQLDataBaseHelper(context);
}
public long insertData1(String contactName, String contactNo, String pic){
SQLiteDatabase db = sqlDataBaseHelper.getWritableDatabase();
ContentValues contentValues = new ContentValues();
contentValues.put(SQLDataBaseHelper.NAME, contactName);
contentValues.put(SQLDataBaseHelper.NO, contactNo);
contentValues.put(SQLDataBaseHelper.PICTURE, pic);
long id = db.insert(SQLDataBaseHelper.TABLE1_NAME,null,contentValues);
return id;
}
public long insertData2(String contactName, String duration, String time, String date, String pic ){
SQLiteDatabase db = sqlDataBaseHelper.getWritableDatabase();
ContentValues contentValues = new ContentValues();
contentValues.put(SQLDataBaseHelper.NAME, contactName);
contentValues.put(SQLDataBaseHelper.DURATION, duration);
contentValues.put(SQLDataBaseHelper.TIME, time);
contentValues.put(SQLDataBaseHelper.DATE, date);
contentValues.put(SQLDataBaseHelper.PICTURE, pic);
long id = db.insert(SQLDataBaseHelper.TABLE2_NAME,null,contentValues);
return id;
}
public String[] getContacts(int position) {
String[] contactsData = new String[3];
SQLiteDatabase db = sqlDataBaseHelper.getWritableDatabase();
String[] columns = {SQLDataBaseHelper.UID, SQLDataBaseHelper.NAME, SQLDataBaseHelper.PICTURE, SQLDataBaseHelper.NO};
Cursor cursor = db.query(SQLDataBaseHelper.TABLE1_NAME, columns, null, null, null, null, null);
cursor.moveToPosition(position);
int pos = cursor.getPosition();
int cnt = cursor.getCount();
int checkElement = cnt-pos;
if (checkElement > 0)
{
cursor.moveToPosition(position);
int nameColumnIndex = cursor.getColumnIndex(SQLDataBaseHelper.NAME);
String name = cursor.getString(nameColumnIndex);
int noColumnIndex = cursor.getColumnIndex(SQLDataBaseHelper.NO);
String contactNo = cursor.getString(noColumnIndex);
int picColumnIndex = cursor.getColumnIndex(SQLDataBaseHelper.PICTURE);
String picture = cursor.getString(picColumnIndex);
contactsData[0] = name;
contactsData[1] = contactNo;
contactsData[2] = picture;
} else
{
contactsData[0] = null;
contactsData[1] = null;
contactsData[2] = null;
}
cursor.close();
db.close();
return contactsData;
}
public void updateTable1 (String oldName, String newName, String oldPhoneNo, String NewPhoneNumber, String oldPic, String newPic) {
SQLiteDatabase db = sqlDataBaseHelper.getWritableDatabase();
if (oldName != newName) {
ContentValues contentValues = new ContentValues();
contentValues.put(SQLDataBaseHelper.NAME, newName);
String[] whereArgs = {oldName};
db.update(SQLDataBaseHelper.TABLE1_NAME,contentValues,SQLDataBaseHelper.NAME+" =? ",whereArgs);
}
if(oldPhoneNo!=NewPhoneNumber){
ContentValues contentValues = new ContentValues();
contentValues.put(SQLDataBaseHelper.NO, NewPhoneNumber);
String[] whereArgs = {oldPhoneNo};
db.update(SQLDataBaseHelper.TABLE1_NAME,contentValues,SQLDataBaseHelper.NO+" =? ",whereArgs);
}
if(oldPic!=newPic){
ContentValues contentValues = new ContentValues();
contentValues.put(SQLDataBaseHelper.PICTURE, NewPhoneNumber);
String[] whereArgs = {oldPic};
db.update(SQLDataBaseHelper.TABLE1_NAME,contentValues,SQLDataBaseHelper.PICTURE+" =? ",whereArgs);
}
}
public void deleteRowTable1()
{
}
public void updateTable2 ()
{
}
public void deleteRowTable2()
{
}
/////////////////////////////////////////////////////////////////////
public Cursor getAllContacts(){
SQLiteDatabase db = sqlDataBaseHelper.getWritableDatabase();
return db.query(SQLDataBaseHelper.TABLE1_NAME, new String[] {
SQLDataBaseHelper.UID,SQLDataBaseHelper.NAME, SQLDataBaseHelper.NO, SQLDataBaseHelper.PICTURE},
null, null, null, null,
SQLDataBaseHelper.NAME + " asc ");
}
public SQLDataBaseAdapter open() {
SQLiteDatabase db = sqlDataBaseHelper.getWritableDatabase();
return this;
}
public Cursor getAllRows1() {
SQLiteDatabase db = sqlDataBaseHelper.getWritableDatabase();
Cursor cursor = db.query(true, SQLDataBaseHelper.TABLE1_NAME, SQLDataBaseHelper.ALL_KEYS1, null, null, null, null, null, null);
if (cursor != null) {
cursor.moveToFirst();
}
return cursor;
}
public String[] fromFieldName1(){///
String[] fields = new String[] {SQLDataBaseHelper.UID,SQLDataBaseHelper.NAME, SQLDataBaseHelper.NO, SQLDataBaseHelper.PICTURE};
return fields;
}
public int[] toIds1(){
int[] toViewIds = new int[]{R.id.contact_name,R.id.contact_no,R.id.contact_image};
return toViewIds;
}
static class SQLDataBaseHelper extends SQLiteOpenHelper{
private static final String DATABASE_NAME = "ContactsDataBase";
private static final String TABLE1_NAME = "CALLS_TABLE1";
private static final String TABLE2_NAME = "LOGS_TABLE";
private static final int DATABASE_VERSION = 1;
private static final String UID = "_id";
private static final String NAME = "Name";
private static final String NO = "ContactNo";
private static final String DURATION = "Duration";
private static final String PICTURE = "Picture";
private static final String DATE = "Date";
private static final String TIME = "Time";
private static final String[] ALL_KEYS1 = new String[] {UID,NAME, NO, PICTURE};
private static final String CREATE_TABLE1 = "CREATE TABLE "+TABLE1_NAME+" (" +UID+
" INTEGER PRIMARY KEY AUTOINCREMENT, "+NAME+" VARCHAR(255), "+NO+" VARCHAR(255), "
+PICTURE+" VARCHAR(255));";
private static final String CREATE_TABLE2 = "CREATE TABLE "+TABLE2_NAME+" ("
+UID+" INTEGER PRIMARY KEY AUTOINCREMENT, "+NAME+" VARCHAR(255), "+DURATION+" VARCHAR(255), "
+PICTURE+" VARCHAR(255), " +DATE+ " VARCHAR(255), "+TIME+ " VARCHAR(255));";
private static final String DROP_TABLE1 = "DROP TABLE IF EXIST"+ TABLE1_NAME ;
private static final String DROP_TABLE2 = "DROP TABLE IF EXIST"+ TABLE2_NAME ;
private Context context;
public SQLDataBaseHelper (Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
this.context = context;
}
#Override
public void onCreate(SQLiteDatabase db) {
try {
db.execSQL(CREATE_TABLE1);
Toast.makeText(context,"onCreate1 called" , Toast.LENGTH_SHORT).show();
} catch (SQLException e) {
Toast.makeText(context,""+e , Toast.LENGTH_SHORT).show();
Log.e("exception in onCreate", "here is exception " + e);
} //*/
try {
db.execSQL(CREATE_TABLE2);
Toast.makeText(context,"onCreate2 called" , Toast.LENGTH_SHORT).show();
} catch (SQLException e) {
Toast.makeText(context,""+e , Toast.LENGTH_SHORT).show();
Log.e("exception in onCreate", "here is exception " + e);
} //*/
}
#Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
try {
db.execSQL(DROP_TABLE1);
Toast.makeText(context,"onUpgrade1 called" , Toast.LENGTH_SHORT).show();
onCreate(db);
}catch (SQLException e){
Toast.makeText(context, ""+e, Toast.LENGTH_SHORT).show();
}
try {
db.execSQL(DROP_TABLE2);
Toast.makeText(context,"onUpgrade2 called" , Toast.LENGTH_SHORT).show();
onCreate(db);
}catch (SQLException e){
Toast.makeText(context, ""+e, Toast.LENGTH_SHORT).show();
}
}
}
}
and these are the errors
01-30 04:03:23.804 2702-2702/com.example.asim.simpleviewpager E/AndroidRuntime: FATAL EXCEPTION: main
android.content.res.Resources$NotFoundException: Resource ID #0x88a6fd
at android.content.res.Resources.getValue(Resources.java:1049)
at android.content.res.Resources.getDrawable(Resources.java:664)
at android.support.v4.content.ContextCompat.getDrawable(ContextCompat.java:323)
at android.support.v7.widget.TintManager.getDrawable(TintManager.java:175)
at android.support.v7.widget.TintManager.getDrawable(TintManager.java:168)
at android.support.v7.widget.AppCompatImageHelper.setImageResource(AppCompatImageHelper.java:51)
at android.support.v7.widget.AppCompatImageView.setImageResource(AppCompatImageView.java:72)
at android.support.v4.widget.SimpleCursorAdapter.setViewImage(SimpleCursorAdapter.java:195)
at android.support.v4.widget.SimpleCursorAdapter.bindView(SimpleCursorAdapter.java:143)
In SimpleCursorAdapter.java, you have a method bindView() which overrides the same method from its parent class, but you don't put any code in that method. Deleting the method should fix the error. But if you plan to override how binding works in that method, you may want to put some code in there starting with something like
super.bindView(view, context, cursor);
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;
}
}
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*/));