How to refresh a listview in Android? - java

I'm using this pieces of code, in the activity:
public void carregaListaDemanda(){
setContentView(R.layout.listaviewdemanda);
lstDem = (ListView) findViewById(R.id.listViewDemanda);
DemandaAdapter adapter = new DemandaAdapter(ctx,
bancodedados.getAllDem(), this);
lstDem.setAdapter(adapter);
lstDem.setItemsCanFocus(true);
teste=0;
}
and in the adapter:
public void onClick(View v) {
AlertDialog alertDialog = new AlertDialog.Builder(ctx).create();
alertDialog.setTitle("Do you wanna delete?");
alertDialog.setIcon(R.drawable.icon);
alertDialog.setMessage("if 'yes' the demand '"
+ dem.getNr_demanda() + "' will be deleted!");
alertDialog.setButton("OK",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int which) {
// if yes delete, and REFRESH the screen
DemandaDAO dbHelper;
try {
dbHelper = new DemandaDAO(ctx);
dbHelper.DeleteDem(dem);
} catch (FileNotFoundException e) {
e.printStackTrace();
}}
});
alertDialog.setButton2("Cancel",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int which) {
return;
}
});
alertDialog.show();
}
});
I want to refresh the listview after deleting a demand, but it results in a forceclose if I call the method in activity again.

call adapter.notifyDataSetChanged() , it Notifies the attached View that the underlying data has been changed and it should refresh itself.

Related

deleting item in sharedPreferences from recyclerView adapter

i tried to delete an item in sharedPreferences, in recyclerView adapter. but that item doesn't disappear till I go back from the activity and come back. I need it to disappear soon after being deleted.
Method
public boolean RemoveFromWantToRead(AllBooksActivityModel book) {
ArrayList<AllBooksActivityModel>books = getWantToReadBooks();
if (null != books){
for (AllBooksActivityModel b: books){
if (b.getBookID() == book.getBookID()){
if (books.remove(b)){
//We create a 'if' loop here is if only the thing happened, the loop actions.
Gson gson = new Gson();
SharedPreferences.Editor editor = sharedPreferences.edit();
editor.remove(WANT_TO_READ_BOOKS);
editor.putString(WANT_TO_READ_BOOKS,gson.toJson(books));
editor.commit();
return true;
}
} }
}return false;
}
This is how I tried to delete an item.
holder.BtnDltTxt.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
AlertDialog.Builder builder = new AlertDialog.Builder(context);
builder.setMessage("Do you want to delete this massage");
builder.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialogInterface, int i) {
String EleName = allBooksActivityModels.get(position).getBookName();
if( Ulitls.getInstance(context).RemoveFromCurrenlyReading(allBooksActivityModels.get(position))){
Toast.makeText(context, EleName + " Removed", Toast.LENGTH_SHORT).show();
notifyDataSetChanged();
}else{
Toast.makeText(context, "Something Wrong Happens, Try again", Toast.LENGTH_SHORT).show();
}
}
});
builder.setNegativeButton("No", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialogInterface, int i) {
}
});
builder.create().show();
}
});

System services not available to Activities before onCreate() while opening a Dialog from RecyclerView

I'm having this error out of the blue and have no idea what's causing it or where it has come from.
Basically I've got a RecyclerView that gets populated with products. When a product is selected, I've got a custom Dialog that pops up where the user can increase product quantity or remove the product. This all works, however if I click the same product a second time it crashes the app with the following error:
System services not available to Activities before onCreate()
This is my RecyclerView.Adapter with the onBindViewHolder()
public class OrderAdapter extends RecyclerView.Adapter<OrderAdapter.MyViewHolder>{
#Override
public void onBindViewHolder(#NonNull OrderAdapter.MyViewHolder holder, int position) {
final Item Item = ItemList.get(position);
holder.cardView.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
dialog = new Dialog(context,R.style.Custom_Theme_Dialog);
//Code breaks on this line
dialog.setContentView(R.layout.dialog_cart_edit);
cartProdDesc = dialog.findViewById(R.id.lblcartProdDesc);
cartQuantity = dialog.findViewById(R.id.edit_quantity);
btnDone = dialog.findViewById(R.id.btn_dialog_done);
btnRemove = dialog.findViewById(R.id.btn_dialog_remove);
addQuantity = dialog.findViewById(R.id.addition_action);
minusQuantity = dialog.findViewById(R.id.minus_action);
cartProdDesc.setText(cartItem.getProductDescription());
cartPackSize.setText(cartItem.getPackSize());
addQuantity.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
try{
quantity = Integer.parseInt(cartQuantity.getText().toString());
} catch (NumberFormatException nf) {
Log.e("Number Exception","Number Is Blank");
quantity = 0;
} catch (Exception e){
Log.e("ERROR",e.toString());
}
cartQuantity.setText(String.valueOf(++quantity));
}
});
minusQuantity.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
try{
quantity = Integer.parseInt(cartQuantity.getText().toString());
} catch (NumberFormatException nf) {
Log.e("Number Exception","Number Is Blank");
quantity = 0;
} catch (Exception e){
Log.e("ERROR",e.toString());
}
cartQuantity.setText(String.valueOf(--quantity));
}
});
btnDone.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
if(cartQuantity.getText().toString().isEmpty() || cartQuantity.getText().toString().equals("0") || cartQuantity.getText().toString().contains("-")){
cartQuantity.setError("Enter a valid quantity");
} else {
newQuantity = cartQuantity.getText().toString();
db.updateCartItem(new CartItem(cartItem.getId(),cartItem.getProductCode(),cartItem.getBarcode(),cartItem.getNappiCode(),cartItem.getProductDescription(),cartItem.getPackSize(),newQuantity));
updateDataSet();
notifyDataSetChanged();
dialog.dismiss();
}
}
});
btnRemove.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
DialogInterface.OnClickListener dialogClickListner = new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialogInterface, int which) {
switch (which){
case DialogInterface.BUTTON_POSITIVE:
db.deleteCartItem(cartItem.getId());
updateDataSet();
dialog.dismiss();
break;
case DialogInterface.BUTTON_NEGATIVE:
dialog.dismiss();
break;
}
}
};
AlertDialog.Builder builder = new AlertDialog.Builder(context);
builder.setMessage("Are you sure you want to remove " + cartItem.getProductDescription()).setPositiveButton("Yes",dialogClickListner).setNegativeButton("No",dialogClickListner).show();
}
});
dialog.show();
}
});
}
}
I've got a private Dialog dialog; declaration further up on the Activity in case anyone was wondering.
The code breaks on the dialog = new Dialog(context,R.style.Custom_Theme_Dialog); however if I comment out the dialog.show() at the end I have no issues, apart from the dialog not showing, but that tells me that the problem isn't with the assigning of the dialog, or am I wrong on this train of thought ?
This is a line of code in my OrderActivity where I'm calling the adapter, I'm sending the context from here.
OrderAdapter = new OrderAdapter(this,ItemList);
This is my constructor where I'm assigning Context
public OrderAdapter(Context context, List<CartItem> cartItemList){
this.context = context;
this.cartItemList = cartItemList;
}
Depending on where that Context is coming from exactly, it might have already been "destroyed" by the time onClick() is called (well not really, because the Dialog is holding an implicit reference to it). In this case this is also a memory leak.
I'd suggest you to change the following:
#Override
public void onClick(View view) {
dialog = new Dialog(context, R.style.Custom_Theme_Dialog);
To this:
#Override
public void onClick(View view) {
dialog = new Dialog(view.getContext(), R.style.Custom_Theme_Dialog);
This way you'll always reference the Context the corresponding View is associated with.

alert dialog box having list of item

In my android application, when i click on text view, i want to display an alert dialog box which contain list of items. How is it possible. kindly guide.
i code it as:
cus_name_txt = (TextView)findViewById(R.id.cus_name_txta);
cus_name_txt.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Onclick_click1(cus_name_txt);
// TODO Auto-generated method stub
}
});
contact_no_txt = (TextView)findViewById(R.id.contact_no_txta);
attend_by_txtbx = (EditText)findViewById(R.id.attend_by_txt);
attend_by_txtbx.setText(My_Task.attend_by_txt);
ticket_no_txt = (TextView)findViewById(R.id.ticket_no_txta);
task_detail_txt = (TextView)findViewById(R.id.task_detail_txt);
How can i get the alert box of list of items by clicking on textView. Please guide. I'll be thankful to u
If you want to show the progressBar Before loading of the List in alert dialog, then use AsyncTask for that.
e.g.:
private class LoadingTask extends AsyncTask<String, Void, String> {
#Override
protected void onPreExecute(){
super.onPreExecute();
progressDialog.show();
}
#Override
protected String doInBackground(String... str) {
String response = "";
// Call Web Service here and return response
response = API.getDealsByCategory(str[0], str[1]);
// e.g.: above is my WebService Function which returns response in string
return response;
}
#Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
System.out.println("result is: "+result);
new Thread(new Runnable() {
#Override
public void run() {
progressDialog.dismiss();
}
}).start();
// SHOW THE ALERT DIALOG HERE.....
}
}
Call AsyncTask as like below :
LoadingTask task = new LoadingTask();
task.execute("YOUR_PARAMETER","YOUR_PARAMETER");
//==============================
Just put below code in the Post Excution of the AsyncTask and you will get what you want.
final CharSequence[] items = {"","50","100","150","200","250","300","350","400","450","500","550","600","650","700","750","800","850","900","1000"};
AlertDialog.Builder builder = new AlertDialog.Builder(getParent());
builder.setTitle("Select Country");
//builder.setI
builder.setItems(items, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int item) {
//Toast.makeText(getApplicationContext(), con.get(item).getCountrName(), Toast.LENGTH_SHORT).show();
selectDistanceTV.setText(items[item]);
System.out.println("Item is: "+items[item]);
/*CONTRY_ID = con.get(item).getCountryId();
stateET.requestFocus();*/
}
});
AlertDialog alert = builder.create();
alert.show();
Hope it will help you.
If you need more help on how to use AsyncTask then see here:Vogella
Comment me for any query.
Enjoy Coding... :)
Put following code in onClick of textView:
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Select Color Mode");
ListView modeList = new ListView(this);
String[] stringArray = new String[] { "Bright Mode", "Normal Mode" };
ArrayAdapter<String> modeAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, android.R.id.text1, stringArray);
modeList.setAdapter(modeAdapter);
builder.setView(modeList);
final Dialog dialog = builder.create();
dialog.show();
Or
Dialog dialog = new Dialog(**Your Context**);
dialog.setContentView(R.layout.**Your Layout File**);
dialog.show();
In this layout file you can make your layout as per your requirements. When you want to use ListView from your Dialog Layout file then you have to write
ListView listView = (ListView)**dialog**.findViewById(R.id.**Your ListView Id**)
You can pass list of items in an String Array and display it in AlertBox..
For Example:
private void SingleChoice() {
String[] selectFruit = new String[] {"Apple","orange","mango"};
Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Single your Choice");
builder.setItems(selectFruit, new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(MainActivity.this,
selectFruit[which] + " Selected", Toast.LENGTH_LONG)
.show();
dialog.dismiss();
}
});
builder.setNegativeButton("cancel",
new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
AlertDialog alert = builder.create();
alert.show();
}
button.setOnClickListener(new OnClickListener()
{
public void onClick(View arg0)
{
new AlertDialog.Builder(MainActivity.this)
.setSingleChoiceItems(arrClientName,0, new DialogInterface.OnClickListener()
{
public void onClick(DialogInterface dialog, int which)
{
name.setText(arrClientName[which]);
}
})
.setPositiveButton("Ok", new DialogInterface.OnClickListener()
{
public void onClick(DialogInterface dialog, int id)
{
}
})
.show();
}
});

How to show ProgressDialog after AlertDialog

I am having trouble with an alert dialog that I cannot hide.
when the user press a button I show a dialog that is created with this code :
new AlertDialog.Builder(this)
.setTitle(R.string.enterPassword)
.setView(textEntryView)
.setPositiveButton(R.string.ok,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
String password = pwdText.getText().toString();
dialog.dismiss();
processUserAction(password,targetUri);
}
})
.setNegativeButton(R.string.cancel,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
}
})
.
create();
There are some heavy operations performed in the 'processUserAction' method, and inside it I am using an AysncTask that displays a ProgressDialog.
The problem I am having is that the dialog prompting for the password never goes of the screen (I have tried with dismiss(), cancel()).
I guess it stays there until the onClick method is finished.
So, my question is how to close that AlertDialog, so I can show the ProgressDialog?
Another approach I have been trying is to set a DismissListener in the AlertDialog and calling the heavy operations from there, but I have had no luck ( it didn't get called ).
EDIT: Adding AsyncTask code
public class BkgCryptOperations extends AsyncTask<File,Void,Integer>{
#Override
protected Integer doInBackground(File... files) {
if (files!=null && files.length > 0){
File source = files[0];
File target = files[1];
return cryptAction.process(source,password, target);
}
return Constants.RetCodeKO;
}
CryptAction cryptAction;
String password;
ProgressDialog progressDialog;
public BkgCryptOperations (CryptAction cryptAction,String password,ProgressDialog progressDialog){
this.cryptAction=cryptAction;
this.password=password;
this.progressDialog=progressDialog;
}
#Override
protected void onPreExecute() {
if (progressDialog!=null){
progressDialog.show();
}
}
protected void onPostExecute(Integer i) {
if (progressDialog!=null){
progressDialog.dismiss();
}
}
}
Thanks in advance
Here is a excample how I do it:
public void daten_remove_on_click(View button) {
// Nachfragen
if (spinadapter.getCount() > 0) {
AlertDialog Result = new AlertDialog.Builder(this)
.setIcon(R.drawable.icon)
.setTitle(getString(R.string.dialog_data_remove_titel))
.setMessage(getString(R.string.dialog_data_remove_text))
.setNegativeButton(getString(R.string.dialog_no),
new DialogInterface.OnClickListener() {
public void onClick(
DialogInterface dialogInterface, int i) {
// Nicht löschen
dialogInterface.cancel();
}
})
.setPositiveButton(getString(R.string.dialog_yes),
new DialogInterface.OnClickListener() {
public void onClick(
DialogInterface dialogInterface, int i) {
String _quellenName = myCursor.getString(1);
deleteQuellenRecord(_quellenName);
zuletztGelöscht = _quellenName;
}
}).show();
} else {
// Keine Daten mehr vorhanden
Toast toast = Toast.makeText(Daten.this,
getString(R.string.dialog_data_remove_empty),
Toast.LENGTH_SHORT);
toast.show();
}
}
Here is the code of deleteQuellenRecord:
private void deleteQuellenRecord(String _quellenName) {
String DialogTitel = getString(R.string.daten_delete_titel);
String DialogText = getString(R.string.daten_delete_text);
// Dialogdefinition Prograssbar
dialog = new ProgressDialog(this) {
#Override
public boolean onSearchRequested() {
return false;
}
};
dialog.setCancelable(false);
dialog.setTitle(DialogTitel);
dialog.setIcon(R.drawable.icon);
dialog.setMessage(DialogText);
// set the progress to be horizontal
dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
// reset the bar to the default value of 0
dialog.setProgress(0);
// set the maximum value
dialog.setMax(4);
// display the progressbar
increment = 1;
dialog.show();
// Thread starten
new Thread(new MyDeleteDataThread(_quellenName)) {
#Override
public void run() {
try {
// Datensatz löschen
myDB.execSQL("DELETE ... ');");
progressHandler
.sendMessage(progressHandler.obtainMessage());
myDB.execSQL("DELETE ...);");
// active the update handler
progressHandler
.sendMessage(progressHandler.obtainMessage());
myDB.execSQL("DELETE ...;");
// active the update handler
progressHandler
.sendMessage(progressHandler.obtainMessage());
// Einstellung speichern
try {
settings.edit().putString("LetzteQuelle", "-1")
.commit();
} catch (Exception ex) {
settings.edit().putString("LetzteQuelle", "").commit();
}
} catch (Exception ex) {
// Wait dialog beenden
dialog.dismiss();
Log.e("Glutenfrei Viewer",
"Error in activity MAIN - remove data", ex); // log
// the
// error
}
// Wait dialog beenden
dialog.dismiss();
}
}.start();
this.onCreate(null);
}
Wiht Async Task I do it this way:
private class RunningAlternativSearch extends
AsyncTask<Integer, Integer, Void> {
final ProgressDialog dialog = new ProgressDialog(SearchResult.this) {
#Override
public boolean onSearchRequested() {
return false;
}
};
#Override
protected void onPreExecute() {
alternativeSucheBeendet = false;
String DialogTitel = getString(R.string.daten_wait_titel);
DialogText = getString(R.string.dialog_alternativ_text);
DialogZweiteChance = getString(R.string.dialog_zweite_chance);
DialogDritteChance = getString(R.string.dialog_dritte_chance);
sucheNach = getString(R.string.dialog_suche_nach);
dialog.setCancelable(true);
dialog.setTitle(DialogTitel);
dialog.setIcon(R.drawable.icon);
dialog.setMessage(DialogText);
dialog.setOnDismissListener(new OnDismissListener() {
public void onDismiss(DialogInterface arg0) {
// TODO Auto-generated method stub
cancleBarcodeWorker();
if (alternativeSucheBeendet==false){
// Activity nur beenden wenn die Suche
// nicht beendet wurde, also vom User abgebrochen
Toast toast = Toast.makeText(SearchResult.this, SearchResult.this
.getString(R.string.toast_suche_abgebrochen),
Toast.LENGTH_LONG);
toast.show();
myDB.close();
SearchResult.this.finish();
}
}
});
dialog.show();
}
...
Can you show the code for processUserAction(..)? There is no need to include the dismiss.
I did something very similar and had no problems...
Here's the code:
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage("Export data.\nContinue?")
.setCancelable(false)
.setPositiveButton("Yes",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
String file = getObra().getNome();
d = new ProgressDialog(MenuActivity.this);
d.setTitle("Exporting...");
d.setMessage("please wait...");
d.setIndeterminate(true);
d.setCancelable(false);
d.show();
export(file);
}
})
.setNegativeButton("No",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.cancel();
}
});
AlertDialog alert = builder.create();
alert.show();
In export(file) I open the thread:
private void export(final String file) {
new Thread() {
public void run() {
try {
ExportData ede = new ExportData(
getApplicationContext(), getPmo().getId(),
file);
ede.export();
handlerMessage("Done!!");
} catch (Exception e) {
handlerMessage(e.getMessage());
System.out.println("ERROR!!!" + e.getMessage());
}
}
}.start();
}
In handlerMessage I dismiss the progressDialog and show the final message.
Hope it helps you.
You could create a listener outside of the AlertDialog, to abstract out the logic within the OnClickListener for the positive button. That way, the listener can be notified, and the AlertDialog will be dismissed immediately. Then, whatever processing of the user's input from the AlertDialog can take place independently of the AlertDialog. I'm not sure if this is the best way to accomplish this or not, but it's worked well for me in the past.
As far as I can tell, I don't see any obvious problems with your AsyncTask code.
public interface IPasswordListener {
public void onReceivePassword(String password);
}
IPasswordListener m_passwordListener = new IPasswordListener {
#Override
public void onReceivePassword(String password) {
processUserAction(password,targetUri);
}
}
public void showPasswordDialog() {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle(R.string.enterPassword);
builder.setView(textEntryView);
builder.setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
m_passwordListener.onReceivePassword(pwdText.getText().toString());
dialog.dismiss();
}
});
builder.setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
dialog.cancel();
}
});
builder.show();
}

Application alarm causing a weird error until I press the back button

I have an alarm in my application that notifies me every 10 minutes. It works fine but each time when the alarm notifies me, my application name will show as a box in the middle of the screen, and I can't press anything until I press the back button. It's really weird!
Here is my code:
// Alert Code
final AlertDialog alertDialog = new AlertDialog.Builder(this).create();
alertDialog.setTitle("Confirmation");
alertDialog.setMessage("Are you sure you want to send this report?");
run(gotDataS);
// Timer Code
pendingIntent = PendingIntent.getService(CreateNewForm_3.this, 0,
new Intent(NewForm_3.this, MyAlarmService.class), 0);
Send.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
alertDialog.setButton("OK",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int which) {
Toast.makeText(NewForm_3.this, "Sent", 0)
.show();
long firstTime = SystemClock.elapsedRealtime();
am = (AlarmManager) getSystemService(ALARM_SERVICE);
am.setRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP,
firstTime + 10 * 1000, 30 * 1000, pendingIntent);
// firstTime Will be the current_time + ( 10 * 60 * 1000) =)
// 10* 1000 will be (10 * 60 * 1000)
new Handler().postDelayed(new Runnable() {
public void run() {
bCancel.performClick();
}
}, (30 * 1000));
// ( 30 * 1000) will be firstTime + ( 2- duration)
Intent toRecentCases = new Intent(CreateNewForm_3.this,
LMPActivity.class);
startActivity(toRecentCases);
}
});
alertDialog.setButton2("No",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int which) {
// Here you can add functions
}
});
alertDialog.setIcon(android.R.drawable.ic_dialog_alert);
alertDialog.show();
}
});
bCancel.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
am.cancel(pendingIntent);
}
});
//For Notification -3-
final AlertDialog alertDialog3 = new AlertDialog.Builder(this).create();
alertDialog3.setTitle("Confirmation");
alertDialog3.setMessage("Are you sure you want to quite?");
// Press cancel button it will move user to actvity p
Cancelb.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
alertDialog3.setButton("OK",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int which) {
Intent toRecentCases = new Intent(NewForm_3.this,
LMPActivity.class);
startActivity(toRecentCases);
}
});
alertDialog3.setButton2("No",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int which) {
// Doing nothing!
}
});
alertDialog3.setIcon(android.R.drawable.ic_dialog_alert);
alertDialog3.show();
}
});
}
This is Showing Dialog Activity
public class ShowingDialog extends Activity {
boolean b;
String CancelMsg;
#Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
//For Notification -1-
final AlertDialog alertDialog = new AlertDialog.Builder(this).create();
alertDialog.setTitle("Confirmation");
alertDialog.setMessage("Do you really want it?");
// For Notification -2-
final AlertDialog alertDialog2 = new AlertDialog.Builder(this).create();
alertDialog2.setTitle("Confirmation");
alertDialog2.setMessage("Are you sure you want it?");
alertDialog.setButton("yes", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
Intent intent= new Intent(ShowingDialog.this,MyPage.class);
startActivity(intent);
;
}
});
alertDialog.setButton2("no",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int which) {
alertDialog2.setButton("yes", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
// Here you can add functions
// Sending a Message to server that the plaintiff found the case
// For Sending SMS with cancel Request
// Getting Case_ID + putting it inside CancelMsg
CancelMsg = "Case_ID cancel";
if (!b) {
try {
sendSMS("5556", CancelMsg);
Toast.makeText(ShowingDialog.this, "Sent", Toast.LENGTH_LONG)
.show();
} catch (Exception e) {
// TODO Auto-generated catch block
Toast.makeText(ShowingDialog.this, e.getMessage(),
Toast.LENGTH_LONG).show();
}
}
}
});
alertDialog2.setButton2("no", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
// Here you can add functions
// Do nothing
}
});
alertDialog2.setIcon(android.R.drawable.ic_dialog_alert);
alertDialog2.show();
}
});
alertDialog.setIcon(android.R.drawable.ic_dialog_alert);
alertDialog.show();
}
public void sendSMS(String number, String msg) throws Exception {
if (!b) {
SmsManager smsManager = SmsManager.getDefault();
smsManager.sendTextMessage(number, null, msg, null, null);
}
b = true;
}
}
In Manifest :
<activity
android:name=".ShowingDialog"
android:theme="#android:style/Theme.Dialog" />
It doesn't appear that you're overloading the back statement, so when you hit the back button you're traveling back up your Back Stack. The Android documentation has more information on this:
Tasks and Back Stack

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