I have an app that receives the id of an animal and pass that id to a method from the database that will be read several times in a do-while. I want to know why this error happens?
This is my code:
bd = new BaseDados(getApplicationContext());
Cursor cc = bd.getIdAnimal(chipnumber);
if (cc.moveToFirst()) {
idanimal = cc.getInt(cc.getColumnIndex("idanimal"));
}
Cursor ccc = bd.getGruupsnosAnimals(idanimal);
do{
if(ccc.moveToFirst()){
String groupname= ccc.getString(ccc.getColumnIndex("groupname"));
}
}while (ccc.moveToNext());
This is my error:
Process: com.example.nobre.myapplication, PID: 4529
android.database.sqlite.SQLiteException: not an error (code 0)
at android.database.sqlite.SQLiteConnection.nativeExecuteForCursorWindow(Native Method)
at android.database.sqlite.SQLiteConnection.executeForCursorWindow(SQLiteConnection.java:845)
at android.database.sqlite.SQLiteSession.executeForCursorWindow(SQLiteSession.java:836)
at android.database.sqlite.SQLiteQuery.fillWindow(SQLiteQuery.java:62)
at android.database.sqlite.SQLiteCursor.fillWindow(SQLiteCursor.java:144)
at android.database.sqlite.SQLiteCursor.getCount(SQLiteCursor.java:133)
at android.database.AbstractCursor.moveToPosition(AbstractCursor.java:197)
at android.database.AbstractCursor.moveToFirst(AbstractCursor.java:237)
at com.example.nobre.myapplication.Activities.VerAnimaisActivity.showDialog(VerAnimaisActivity.java:193)
at com.example.nobre.myapplication.Activities.VerAnimaisActivity$2.onClick(VerAnimaisActivity.java:153)
at android.view.View.performClick(View.java:4780)
at android.view.View$PerformClick.run(View.java:19866)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5254)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
Exception: not an error? That's a new one.
Your bottom loop is a bit weird and may be a bug- you're moving to next but may not even have moved to first if that failed. And if it succeeded you'll infinitely loop. Try this instead:
if(ccc.moveToFirst()){
do{
String groupname= ccc.getString(ccc.getColumnIndex("groupname"));
}while (ccc.moveToNext());
}
do{
if(ccc.moveToFirst()){
String groupname= ccc.getString(ccc.getColumnIndex("groupname"));
}
}while (ccc.moveToNext());
this is an infinite loop, while you have next item in your cursor, you move to first one, and next iteration you would again move to first one.
Also do not forget to call Cursor.close() after usage.
Try this:
// Move the cursor to the first row if cursor is not empty
if(ccc.moveToFirst()) {
do{
String groupname= ccc.getString(ccc.getColumnIndex("groupname"));
}while (ccc.moveToNext()); // Move cursor to next row until it pass last entry
}
Instead of:
do{
if(ccc.moveToFirst()) {
String groupname= ccc.getString(ccc.getColumnIndex("groupname"));
}
}while (ccc.moveToNext());
Related
I am using redmadrobot:inputmask to use card number input mask. Input mask is working properly, but when I try to delete digits from my input, the application crashes.
Here is my code.
ArrayList<String> affineFormats = new ArrayList<>();
affineFormats.add("[0000] [000] [000] [000]");
affineFormats.add("[0000] [000000] [00000]");
affineFormats.add("[0000] [0000] [0000] [0000]");
String format = "[0000] [000] [000] [000]";
MaskedTextChangedListener listener = new MaskedTextChangedListener(
format,
affineFormats,
AffinityCalculationStrategy.CAPACITY,
true,
etCardNumber,
null,
new MaskedTextChangedListener.ValueListener() {
#Override
public void onTextChanged(boolean b, String s, String s1) {
//here some code
}
});
etCardNumber.addTextChangedListener(listener);
Error Log:
java.lang.IndexOutOfBoundsException: setSpan (21 ... 21) ends beyond length 20
at android.text.SpannableStringBuilder.checkRange(SpannableStringBuilder.java:1108)
at android.text.SpannableStringBuilder.setSpan(SpannableStringBuilder.java:680)
at android.text.SpannableStringBuilder.setSpan(SpannableStringBuilder.java:673)
at android.text.Selection.setSelection(Selection.java:76)
at android.text.Selection.setSelection(Selection.java:87)
at android.widget.EditText.setSelection(EditText.java:104)
at com.redmadrobot.inputmask.MaskedTextChangedListener.afterTextChanged(MaskedTextChangedListener.kt:192)
at android.widget.TextView.sendAfterTextChanged(TextView.java:8366)
at android.widget.TextView$ChangeWatcher.afterTextChanged(TextView.java:10557)
at android.text.SpannableStringBuilder.sendAfterTextChanged(SpannableStringBuilder.java:1061)
at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:573)
at android.text.SpannableStringBuilder.delete(SpannableStringBuilder.java:233)
at android.text.SpannableStringBuilder.delete(SpannableStringBuilder.java:229)
at android.view.inputmethod.BaseInputConnection.deleteSurroundingText(BaseInputConnection.java:252)
at com.android.internal.view.IInputConnectionWrapper.executeMessage(IInputConnectionWrapper.java:389)
at com.android.internal.view.IInputConnectionWrapper$MyHandler.handleMessage(IInputConnectionWrapper.java:78)
at android.os.Handler.dispatchMessage(Handler.java:111)
at android.os.Looper.loop(Looper.java:207)
at android.app.ActivityThread.main(ActivityThread.java:5763)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:888)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:749)
Please help me resolve this issue.
Make sure you defined
<EditText
...
android:digits="0123456789 "
...
/>
for you input field, including space, as allowed symbol, because it is allowed in your mask.
You can do the same programmatically
editText.setInputType(InputType.TYPE_CLASS_NUMBER);
editText.setKeyListener(DigitsKeyListener.getInstance("0123456789 "));
Worked for me.
code :
public void extractPhoneNumber(String input){
Iterator<PhoneNumberMatch> existsPhone= PhoneNumberUtil.getInstance().findNumbers(input, "IN").iterator();
while (existsPhone.hasNext()){
System.out.println("Phone == " + existsPhone.next().number());
Log.d("existsPhone",":"+existsPhone.next().rawString());
gotPhone.setText(existsPhone.next().rawString());
}
}
Log :
2019-06-11 16:23:43.059 11176-11176/com.example.cardscaning E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.cardscaning, PID: 11176
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.cardscaning/com.example.cardscaning.Activity.ProcessImage}: java.util.NoSuchElementException
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2678)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2743)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1490)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6165)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:888)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:778)
Caused by: java.util.NoSuchElementException
at com.google.i18n.phonenumbers.PhoneNumberMatcher.next(PhoneNumberMatcher.java:710)
at com.google.i18n.phonenumbers.PhoneNumberMatcher.next(PhoneNumberMatcher.java:43)
at com.example.cardscaning.Activity.ProcessImage.extractPhoneNumber(ProcessImage.java:291)
at com.example.cardscaning.Activity.ProcessImage.onCreate(ProcessImage.java:97)
at android.app.Activity.performCreate(Activity.java:6687)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1140)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2631)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2743)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1490)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6165)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:888)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:778)
Inside log I can get desire result but exception occurs when I am adding this line gotPhone.setText(existsPhone.next().rawString())
Desirable outcome is able use extracted number.
You are calling next() thrice in one iteration forcing the Iterator to move to an element that doesn't exist.
Instead of:
while (existsPhone.hasNext()){
System.out.println("Phone == " + existsPhone.next().number());
Log.d("existsPhone",":"+existsPhone.next().rawString());
//...
}
Use something like:
while (existsPhone.hasNext()){
PhoneNumberMatch phone = existsPhone.next();
System.out.println("Phone == " + phone.number());
Log.d("existsPhone",":"+phone.rawString());
//....
}
ContentResolver musicResolver = getContentResolver();
Uri musicUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
Cursor musicCursor = musicResolver.query(musicUri,null,null,null,null);
if(musicCursor!=null && musicCursor.moveToFirst()){
int idColumn = musicCursor.getColumnIndex(MediaStore.Audio.Media._ID);
int titleColumn = musicCursor.getColumnIndex(MediaStore.Audio.Media.TITLE);
int artistColumn = musicCursor.getColumnIndex(MediaStore.Audio.Media.ARTIST);
int imageColumn = musicCursor.getColumnIndex(MediaStore.Audio.Albums.ALBUM_ART);
//Add songs to the array list
do{
String theArt = musicCursor.getString(imageColumn);
Bitmap image = BitmapFactory.decodeFile(theArt);
long songId = musicCursor.getLong(idColumn);
String songTitle = musicCursor.getString(titleColumn);
String songArtist = musicCursor.getString(artistColumn);
songsArrayList.add(new Songs(songId,songTitle,songArtist,image));
}while (musicCursor.moveToNext())
I want to get the cover image of the song which i am getting from the local storage, I have no idea how to do it so i get
int imageColumn =
musicCursor.getColumnIndex(MediaStore.Audio.Albums.ALBUM_ART);
this code on internet to get album art this is showing error when i get string from it . That accessing column -1 , I think its not getting the right column to get the image , please let me know how to get the image from media in the way of above code
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.downloadbro.mumusic, PID: 10877
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.downloadbro.mumusic/com.downloadbro.mumusic.MainActivity}: java.lang.IllegalStateException: Couldn't read row 0, col -1 from CursorWindow. Make sure the Cursor is initialized correctly before accessing data from it.
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2755)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2816)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1555)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:163)
at android.app.ActivityThread.main(ActivityThread.java:6383)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:904)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:794)
Caused by: java.lang.IllegalStateException: Couldn't read row 0, col -1 from CursorWindow. Make sure the Cursor is initialized correctly before accessing data from it.
at android.database.CursorWindow.nativeGetString(Native Method)
at android.database.CursorWindow.getString(CursorWindow.java:438)
at android.database.AbstractWindowedCursor.getString(AbstractWindowedCursor.java:51)
at android.database.CursorWrapper.getString(CursorWrapper.java:137)
at com.downloadbro.mumusic.MainActivity.getSongList(MainActivity.java:80)
at com.downloadbro.mumusic.MainActivity.onCreate(MainActivity.java:45)
at android.app.Activity.performCreate(Activity.java:6861)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1119)
And this may give me album art but i want media art no function as such showing to me
I'm new in android development and am getting this errors when click my "getir" button. It error after work. How to solve this issue
my code code:
public void getir(View view)
{
cursor = myData.rawQuery("SELECT * FROM kolonVeri", null);
int gunIx = cursor.getColumnIndex("gun");
int vtarihIx = cursor.getColumnIndex("vTarih");
cursor.moveToFirst();
while (cursor != null)
{
System.out.println("VARDİYA: " + cursor.getString(gunIx));
System.out.println("TARİH: " + cursor.getString(vtarihIx));
cursor.moveToNext();
}
}
error log
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.hakannacar.vardiyam, PID: 19541
java.lang.IllegalStateException: Could not execute method for android:onClick
om.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
Caused by: java.lang.reflect.InvocationTargetException
com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
Caused by: android.database.CursorIndexOutOfBoundsException: Index 4 requested, with a size of 4
A returned Cursor (e.g. as from rawQuery) will not be null, the check for null is useless and as shown in this case dangerous.
Rather you should be checking the Cursor move??? methods to see if they return true.
The actual issue is that you end up trying to retrieve data for the 5th row (Index 4) when there are only 4 rows (size), as the check for != null will always be true, so the loop continues beyond the 4th row.
As such your code could be :-
public void getir(View view)
{
cursor = myData.rawQuery("SELECT * FROM kolonVeri", null);
int gunIx = cursor.getColumnIndex("gun");
int vtarihIx = cursor.getColumnIndex("vTarih");
while (cursor.moveToNext()) {
System.out.println("VARDİYA: " + cursor.getString(gunIx));
System.out.println("TARİH: " + cursor.getString(vtarihIx));
}
}
You have to check if the cursor has more items, replace your while loop with this
if (cursor.moveToFirst()) {
do {
System.out.println("VARDİYA: " + cursor.getString(gunIx));
System.out.println("TARİH: " + cursor.getString(vtarihIx));
} while (cursor.moveToNext());
}
Im a beginner in java but I'm trying to build exercises and I ran into this problem. The user types in a donation, presses the button and the value of donations increments. Ive written the entire code but when I click the button to add to the donation count, the app crashes. Ive followed all the teachings of my teacher. I create a method in the activity, the in the ui builder I go to the button on click property and set it to that method. It should go smoothly but it crashes whenever I click the button. This is my activity which I set the onClick property to computeDonation.
public void computeDonation(View v){
String addedText = ((EditText)findViewById(R.id.AmountText)).getText().toString();
DonationModel donation = new DonationModel(addedText);
String answer = donation.calcDonation();
((TextView)findViewById(R.id.totalText)).setText(answer);
}
This is the model:
String textAdded;
double addedDonation;
public DonationModel(String y) {
textAdded = y;
}
public String calcDonation(){
double counter = Double.parseDouble(textAdded);
addedDonation += counter;
Locale locale = new Locale("en", "CA");
NumberFormat fmt = NumberFormat.getCurrencyInstance(locale);
return fmt.format(addedDonation);
}
Ive even tried without the number format just to see if it sends back to the activity but it doesn't. BTW for my class I'm using an older version of android studio.
This is the logcat:
02-15 17:12:28.797 21619-21619/ca.roumani.donations E/AndroidRuntime: FATAL EXCEPTION: main
Process: ca.roumani.donations, PID: 21619
java.lang.IllegalStateException: Could not execute method for android:onClick
at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:293)
at android.view.View.performClick(View.java:5197)
at android.view.View$PerformClick.run(View.java:20909)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:5942)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1399)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1194)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:288)
at android.view.View.performClick(View.java:5197)
at android.view.View$PerformClick.run(View.java:20909)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:5942)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1399)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1194)
Caused by: java.lang.NumberFormatException: Invalid double: ""
at java.lang.StringToReal.invalidReal(StringToReal.java:63)
at java.lang.StringToReal.parseDouble(StringToReal.java:267)
at java.lang.Double.parseDouble(Double.java:301)
at ca.roumani.donations.DonationModel.calcDonation(DonationModel.java:20)
at ca.roumani.donations.DonationActivity.computeDonation(DonationActivity.java:24)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:288)
at android.view.View.performClick(View.java:5197)
at android.view.View$PerformClick.run(View.java:20909)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:5942)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1399)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1194)
It seems like your textAdded is an empty String, which causes the NumberFormatException and crashes your app. What you can do to prevent this, is to check if your textAdded is not empty before parsing it:
public String calcDonation() {
if (TextUtils.isEmpty(textAdded)) {
//textAdded is empty, so just return an empty String
return "";
}
//We're sure that textAdded has a value, so we can try to parse it
double counter = Double.parseDouble(textAdded);
addedDonation += counter;
Locale locale = new Locale("en", "CA");
NumberFormat fmt = NumberFormat.getCurrencyInstance(locale);
return fmt.format(addedDonation);
}
Or just prevent the method from being invoked before the user has entered a value in the EditText view:
public void computeDonation(View v){
String addedText = ((EditText)findViewById(R.id.AmountText)).getText().toString();
if (TextUtils.isEmpty(textAdded)) {
Toast.makeText(context, "Please enter a valid number", Toast.LENGTH_SHORT).show();
} else {
DonationModel donation = new DonationModel(addedText);
String answer = donation.calcDonation();
((TextView)findViewById(R.id.totalText)).setText(answer);
}
}
I don't see where double addedDonation; is initialized, you can't use += when the variable has no value.
The problem is that you attempt to parse an empty string as a double. You need to verify that the user entered valid data before doing any calculations. One way to help you do this is to separate the calculation from the String passing and formatting. I suggest that you modify calcDonation() so that it only handles numeric data. Another method can worry about converting numbers to and from Strings. This will allow you to validate user input and display an appropriate error message when necessary.