trying to parse a fetched xml file from one class to another












0














im using android studio for a school project and im in the final stages now. the only thing i have left is for one class that has 2 spinners, one determining the program, and the other determining the semester, and a button that will then take those two spinners and spit out a URL pertaining to the schedule of that program and semester. The problem is, i dont know how to then take that spit out URL, and parse it into the other java class that displays a schedule. Below you will find the code attached, that works but doesnt display the correct schedule(since its hardcoded)



   StringBuffer sb = new StringBuffer();
sb.append("http://branko-cirovic.appspot.com/etcapp/timetables/timetable_"); sb.append(cid); sb.append(semester); sb.append(".xml");
loc = sb.toString();

Toast.makeText(ScheduleMainActivity.this,"You Selected : "
+ loc, Toast.LENGTH_SHORT).show();

Intent toy7 = new Intent(ScheduleMainActivity.this, TimetableMainActivity.class);
toy7.putExtra("Name", loc);
startActivity(toy7);


That is the activity where im creating the intent and using the putExtra to use the data in the next activity



 public class GetXML extends AsyncTask<String, Void, String> {
String src = null;
String loc = (String) getIntent().getExtras().get("Name");

@Override
protected String doInBackground(String... params) {
try {
URL url = new URL(loc);
HttpURLConnection con = (HttpURLConnection) url.openConnection();
src = readStream(con.getInputStream());

} catch (Exception e) {
e.printStackTrace();
}

return src;
}

@Override
protected void onPostExecute(String result) {
if (src == null)
new AlertDialog.Builder(TimetableMainActivity.this).
setTitle("Error").setMessage("No Schedule Found").
setNeutralButton("Close", null).show();
else {
parseXML(src);
}

setContentView(R.layout.activity_main_timetable);

days = new String[5][10];
for (int i = 0; i < 5; i++) {
for (int j = 0; j < 10; j++) {
int k = i * 10 + j;
days[i][j] = schedule.get(k);
}
}

for (int i = 0; i < 5; i++)
list[i] = new ArrayList<Map<String, String>>();

int count = hours.length;

for (int j = 0; j < 5; j++) {
for (int i = 0; i < count; i++) {
map = new HashMap<String, String>();
map.put("time", hours[i]);
map.put("description", days[j][i]);
list[j].add(map);
}
}

Calendar cal = Calendar.getInstance();
int today = cal.get(Calendar.DAY_OF_WEEK) - 2;

pos = 0;
if (today >= 0 && today <= 4)
pos = today;

ViewPager viewPager = findViewById(R.id.ViewPager);
CustomPagerAdapter adapter = new CustomPagerAdapter(TimetableMainActivity.this, list);
PagerTabStrip pagerTabStrip = findViewById(R.id.pager_tab);

int color = Color.parseColor("#33b7ee");
pagerTabStrip.setTabIndicatorColor(color);

viewPager.setAdapter(adapter);
viewPager.setCurrentItem(pos);
}


This is where im getting an error. Im getting an IndexOut of bounds error and the app is crashing



2018-11-20 22:35:19.126 20681-20681/com.example.mr_ru.listview E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.mr_ru.listview, PID: 20681
java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
at java.util.ArrayList.get(ArrayList.java:437)
at com.example.mr_ru.listview.TimetableMainActivity$GetXML.onPostExecute(TimetableMainActivity.java:100)
at com.example.mr_ru.listview.TimetableMainActivity$GetXML.onPostExecute(TimetableMainActivity.java:66)
at android.os.AsyncTask.finish(AsyncTask.java:695)
at android.os.AsyncTask.access$600(AsyncTask.java:180)
at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:712)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:6669)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)


This is the error btw










share|improve this question
























  • hi Shannon, you need to post the code as text in the question and not attached as image ;) is easier to assist you by simulating the question if needed
    – oetoni
    Nov 20 at 23:43










  • fixed it for you
    – Shannon Edwards
    Nov 21 at 2:08
















0














im using android studio for a school project and im in the final stages now. the only thing i have left is for one class that has 2 spinners, one determining the program, and the other determining the semester, and a button that will then take those two spinners and spit out a URL pertaining to the schedule of that program and semester. The problem is, i dont know how to then take that spit out URL, and parse it into the other java class that displays a schedule. Below you will find the code attached, that works but doesnt display the correct schedule(since its hardcoded)



   StringBuffer sb = new StringBuffer();
sb.append("http://branko-cirovic.appspot.com/etcapp/timetables/timetable_"); sb.append(cid); sb.append(semester); sb.append(".xml");
loc = sb.toString();

Toast.makeText(ScheduleMainActivity.this,"You Selected : "
+ loc, Toast.LENGTH_SHORT).show();

Intent toy7 = new Intent(ScheduleMainActivity.this, TimetableMainActivity.class);
toy7.putExtra("Name", loc);
startActivity(toy7);


That is the activity where im creating the intent and using the putExtra to use the data in the next activity



 public class GetXML extends AsyncTask<String, Void, String> {
String src = null;
String loc = (String) getIntent().getExtras().get("Name");

@Override
protected String doInBackground(String... params) {
try {
URL url = new URL(loc);
HttpURLConnection con = (HttpURLConnection) url.openConnection();
src = readStream(con.getInputStream());

} catch (Exception e) {
e.printStackTrace();
}

return src;
}

@Override
protected void onPostExecute(String result) {
if (src == null)
new AlertDialog.Builder(TimetableMainActivity.this).
setTitle("Error").setMessage("No Schedule Found").
setNeutralButton("Close", null).show();
else {
parseXML(src);
}

setContentView(R.layout.activity_main_timetable);

days = new String[5][10];
for (int i = 0; i < 5; i++) {
for (int j = 0; j < 10; j++) {
int k = i * 10 + j;
days[i][j] = schedule.get(k);
}
}

for (int i = 0; i < 5; i++)
list[i] = new ArrayList<Map<String, String>>();

int count = hours.length;

for (int j = 0; j < 5; j++) {
for (int i = 0; i < count; i++) {
map = new HashMap<String, String>();
map.put("time", hours[i]);
map.put("description", days[j][i]);
list[j].add(map);
}
}

Calendar cal = Calendar.getInstance();
int today = cal.get(Calendar.DAY_OF_WEEK) - 2;

pos = 0;
if (today >= 0 && today <= 4)
pos = today;

ViewPager viewPager = findViewById(R.id.ViewPager);
CustomPagerAdapter adapter = new CustomPagerAdapter(TimetableMainActivity.this, list);
PagerTabStrip pagerTabStrip = findViewById(R.id.pager_tab);

int color = Color.parseColor("#33b7ee");
pagerTabStrip.setTabIndicatorColor(color);

viewPager.setAdapter(adapter);
viewPager.setCurrentItem(pos);
}


This is where im getting an error. Im getting an IndexOut of bounds error and the app is crashing



2018-11-20 22:35:19.126 20681-20681/com.example.mr_ru.listview E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.mr_ru.listview, PID: 20681
java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
at java.util.ArrayList.get(ArrayList.java:437)
at com.example.mr_ru.listview.TimetableMainActivity$GetXML.onPostExecute(TimetableMainActivity.java:100)
at com.example.mr_ru.listview.TimetableMainActivity$GetXML.onPostExecute(TimetableMainActivity.java:66)
at android.os.AsyncTask.finish(AsyncTask.java:695)
at android.os.AsyncTask.access$600(AsyncTask.java:180)
at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:712)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:6669)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)


This is the error btw










share|improve this question
























  • hi Shannon, you need to post the code as text in the question and not attached as image ;) is easier to assist you by simulating the question if needed
    – oetoni
    Nov 20 at 23:43










  • fixed it for you
    – Shannon Edwards
    Nov 21 at 2:08














0












0








0







im using android studio for a school project and im in the final stages now. the only thing i have left is for one class that has 2 spinners, one determining the program, and the other determining the semester, and a button that will then take those two spinners and spit out a URL pertaining to the schedule of that program and semester. The problem is, i dont know how to then take that spit out URL, and parse it into the other java class that displays a schedule. Below you will find the code attached, that works but doesnt display the correct schedule(since its hardcoded)



   StringBuffer sb = new StringBuffer();
sb.append("http://branko-cirovic.appspot.com/etcapp/timetables/timetable_"); sb.append(cid); sb.append(semester); sb.append(".xml");
loc = sb.toString();

Toast.makeText(ScheduleMainActivity.this,"You Selected : "
+ loc, Toast.LENGTH_SHORT).show();

Intent toy7 = new Intent(ScheduleMainActivity.this, TimetableMainActivity.class);
toy7.putExtra("Name", loc);
startActivity(toy7);


That is the activity where im creating the intent and using the putExtra to use the data in the next activity



 public class GetXML extends AsyncTask<String, Void, String> {
String src = null;
String loc = (String) getIntent().getExtras().get("Name");

@Override
protected String doInBackground(String... params) {
try {
URL url = new URL(loc);
HttpURLConnection con = (HttpURLConnection) url.openConnection();
src = readStream(con.getInputStream());

} catch (Exception e) {
e.printStackTrace();
}

return src;
}

@Override
protected void onPostExecute(String result) {
if (src == null)
new AlertDialog.Builder(TimetableMainActivity.this).
setTitle("Error").setMessage("No Schedule Found").
setNeutralButton("Close", null).show();
else {
parseXML(src);
}

setContentView(R.layout.activity_main_timetable);

days = new String[5][10];
for (int i = 0; i < 5; i++) {
for (int j = 0; j < 10; j++) {
int k = i * 10 + j;
days[i][j] = schedule.get(k);
}
}

for (int i = 0; i < 5; i++)
list[i] = new ArrayList<Map<String, String>>();

int count = hours.length;

for (int j = 0; j < 5; j++) {
for (int i = 0; i < count; i++) {
map = new HashMap<String, String>();
map.put("time", hours[i]);
map.put("description", days[j][i]);
list[j].add(map);
}
}

Calendar cal = Calendar.getInstance();
int today = cal.get(Calendar.DAY_OF_WEEK) - 2;

pos = 0;
if (today >= 0 && today <= 4)
pos = today;

ViewPager viewPager = findViewById(R.id.ViewPager);
CustomPagerAdapter adapter = new CustomPagerAdapter(TimetableMainActivity.this, list);
PagerTabStrip pagerTabStrip = findViewById(R.id.pager_tab);

int color = Color.parseColor("#33b7ee");
pagerTabStrip.setTabIndicatorColor(color);

viewPager.setAdapter(adapter);
viewPager.setCurrentItem(pos);
}


This is where im getting an error. Im getting an IndexOut of bounds error and the app is crashing



2018-11-20 22:35:19.126 20681-20681/com.example.mr_ru.listview E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.mr_ru.listview, PID: 20681
java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
at java.util.ArrayList.get(ArrayList.java:437)
at com.example.mr_ru.listview.TimetableMainActivity$GetXML.onPostExecute(TimetableMainActivity.java:100)
at com.example.mr_ru.listview.TimetableMainActivity$GetXML.onPostExecute(TimetableMainActivity.java:66)
at android.os.AsyncTask.finish(AsyncTask.java:695)
at android.os.AsyncTask.access$600(AsyncTask.java:180)
at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:712)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:6669)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)


This is the error btw










share|improve this question















im using android studio for a school project and im in the final stages now. the only thing i have left is for one class that has 2 spinners, one determining the program, and the other determining the semester, and a button that will then take those two spinners and spit out a URL pertaining to the schedule of that program and semester. The problem is, i dont know how to then take that spit out URL, and parse it into the other java class that displays a schedule. Below you will find the code attached, that works but doesnt display the correct schedule(since its hardcoded)



   StringBuffer sb = new StringBuffer();
sb.append("http://branko-cirovic.appspot.com/etcapp/timetables/timetable_"); sb.append(cid); sb.append(semester); sb.append(".xml");
loc = sb.toString();

Toast.makeText(ScheduleMainActivity.this,"You Selected : "
+ loc, Toast.LENGTH_SHORT).show();

Intent toy7 = new Intent(ScheduleMainActivity.this, TimetableMainActivity.class);
toy7.putExtra("Name", loc);
startActivity(toy7);


That is the activity where im creating the intent and using the putExtra to use the data in the next activity



 public class GetXML extends AsyncTask<String, Void, String> {
String src = null;
String loc = (String) getIntent().getExtras().get("Name");

@Override
protected String doInBackground(String... params) {
try {
URL url = new URL(loc);
HttpURLConnection con = (HttpURLConnection) url.openConnection();
src = readStream(con.getInputStream());

} catch (Exception e) {
e.printStackTrace();
}

return src;
}

@Override
protected void onPostExecute(String result) {
if (src == null)
new AlertDialog.Builder(TimetableMainActivity.this).
setTitle("Error").setMessage("No Schedule Found").
setNeutralButton("Close", null).show();
else {
parseXML(src);
}

setContentView(R.layout.activity_main_timetable);

days = new String[5][10];
for (int i = 0; i < 5; i++) {
for (int j = 0; j < 10; j++) {
int k = i * 10 + j;
days[i][j] = schedule.get(k);
}
}

for (int i = 0; i < 5; i++)
list[i] = new ArrayList<Map<String, String>>();

int count = hours.length;

for (int j = 0; j < 5; j++) {
for (int i = 0; i < count; i++) {
map = new HashMap<String, String>();
map.put("time", hours[i]);
map.put("description", days[j][i]);
list[j].add(map);
}
}

Calendar cal = Calendar.getInstance();
int today = cal.get(Calendar.DAY_OF_WEEK) - 2;

pos = 0;
if (today >= 0 && today <= 4)
pos = today;

ViewPager viewPager = findViewById(R.id.ViewPager);
CustomPagerAdapter adapter = new CustomPagerAdapter(TimetableMainActivity.this, list);
PagerTabStrip pagerTabStrip = findViewById(R.id.pager_tab);

int color = Color.parseColor("#33b7ee");
pagerTabStrip.setTabIndicatorColor(color);

viewPager.setAdapter(adapter);
viewPager.setCurrentItem(pos);
}


This is where im getting an error. Im getting an IndexOut of bounds error and the app is crashing



2018-11-20 22:35:19.126 20681-20681/com.example.mr_ru.listview E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.mr_ru.listview, PID: 20681
java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
at java.util.ArrayList.get(ArrayList.java:437)
at com.example.mr_ru.listview.TimetableMainActivity$GetXML.onPostExecute(TimetableMainActivity.java:100)
at com.example.mr_ru.listview.TimetableMainActivity$GetXML.onPostExecute(TimetableMainActivity.java:66)
at android.os.AsyncTask.finish(AsyncTask.java:695)
at android.os.AsyncTask.access$600(AsyncTask.java:180)
at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:712)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:6669)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)


This is the error btw







java xml parsing






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 21 at 2:08

























asked Nov 20 at 23:17









Shannon Edwards

112




112












  • hi Shannon, you need to post the code as text in the question and not attached as image ;) is easier to assist you by simulating the question if needed
    – oetoni
    Nov 20 at 23:43










  • fixed it for you
    – Shannon Edwards
    Nov 21 at 2:08


















  • hi Shannon, you need to post the code as text in the question and not attached as image ;) is easier to assist you by simulating the question if needed
    – oetoni
    Nov 20 at 23:43










  • fixed it for you
    – Shannon Edwards
    Nov 21 at 2:08
















hi Shannon, you need to post the code as text in the question and not attached as image ;) is easier to assist you by simulating the question if needed
– oetoni
Nov 20 at 23:43




hi Shannon, you need to post the code as text in the question and not attached as image ;) is easier to assist you by simulating the question if needed
– oetoni
Nov 20 at 23:43












fixed it for you
– Shannon Edwards
Nov 21 at 2:08




fixed it for you
– Shannon Edwards
Nov 21 at 2:08

















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