(You will want to take a look at the Random class in java. It provides random numbers, which is very useful. To answer your question, I would suggest having a String of allowed characters in the ID, and constructing a new string using a StringBuilder, by selecting random characters from your ALLOWED_CHARACTERS string. Something like … Read more
Change your onCreate method code to : protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_my_account); email = (TextView)findViewById(R.id.email_txt); mAuth = FirebaseAuth.getInstance(); UserId = mAuth.getCurrentUser().getUid(); passwordtxt = (TextView)findViewById(R.id.pass_txt); mFirestore = FirebaseFirestore.getInstance(); mFirestore.collection(“Hospitals”).document(UserId).get().addOnSuccessListener(new OnSuccessListener<DocumentSnapshot>() { @Override public void onSuccess(DocumentSnapshot documentSnapshot) { String user_name = documentSnapshot.getString(“email”); String password = documentSnapshot.getString(“password”); email.setText(user_name); passwordtxt.setText(password); } }); } 5 solved i want … Read more
This class implemeents singleton design pattern. You can read more here http://en.wikipedia.org/wiki/Singleton_pattern solved Declare own class in itself what mean? [closed]
This is happening because you are using the wrong View variable to find the ListView. ListView lv = (ListView) view.findViewById(R.id.lvAlerts); The view variable here refers to: public void onItemSelected(AdapterView<?> parent, View view, int pos, long id) { You need to refer to this view: view = inflater.inflate(R.layout.tab_frag_alerts, container, false); You should change the declaration: View … Read more
A .jar does not expose its source code by itself. You’ll have to add the source code by yourself to be able to browse it. You can be pretty sure though that the mistake will be on your own side, so you could question the use of debugging Android code 🙂 You can add it … Read more
You should write it like that, way easier to read : if (!Arrays.asList(ip, port, username, password).contains(newSet)) { saveButton.setEnabled(true); } else { saveButton.setEnabled(false); } Or : saveButton.setEnabled(!Arrays.asList(ip, port, username, password).contains(newSet)); 1 solved Java String comparison wrong outcome [closed]
Hi @HZan hope you doing well, I’m not that good at java but you can use kotlin snippet equivalent in java to get the desired result if the fold function isn’t available, you could use forEach or any other accumulator pattern to achieve the same, val phNum = “01 12 1234 123 – 124 – … Read more
I need to create Bottom Navigation with two menu item. but the view ratio is 30:70 and text gravity is in centre. one menu contain image and text one is only text AFAIK you can not achieve using menu better to create custom layout for this Sample code <LinearLayout android:layout_width=”match_parent” android:layout_height=”wrap_content” android:gravity=”center” android:layout_margin=”10dp” android:layout_alignParentBottom=”true” android:orientation=”horizontal” … Read more
You can search on a listview and you can use OnItemClickListener From search view new SearchView.OnQueryTextListener() { @Override public boolean onQueryTextChange(String newText) { if (TextUtils.isEmpty(newText)) { mListView.clearTextFilter(); } else { mListView.setFilterText(newText.toString()); //you can use this to filter items } return true; } @Override public boolean onQueryTextSubmit(String query) { return true; } } And in Listview … Read more
Load all the contacts in array list or string array and then use AutoCompleteTextView for adding search functionallity Gett all contacts like this as expalined here public ArrayList<PhoneContactInfo> getAllPhoneContacts() { Log.d(“START”,”Getting all Contacts”); ArrayList<PhoneContactInfo> arrContacts = new ArrayList<PhoneContactInfo>(); PhoneContactInfo phoneContactInfo=null; Uri uri = ContactsContract.CommonDataKinds.Phone.CONTENT_URI; Cursor cursor = context.getContentResolver().query(uri, new String[] {ContactsContract.CommonDataKinds.Phone.NUMBER,ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME,ContactsContract.CommonDataKinds.Phone._ID}, null, null, ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME + … Read more
Here is a sample source code for sudoku from the book hello android. 0 solved How to design Grids for sudoku in Android [closed]
you need to write service to check if current call is ended or not. after disconnection of one call you can dial next number from your array in onRecieve method of BroadcastReceiver. code to check call is disconnected or not. switch(state) { case TelephonyManager.CALL_STATE_IDLE: Log.d(“Call”,”Outgoing Call finished”); break; case TelephonyManager.CALL_STATE_OFFHOOK: Log.d(“Call”,”Outgoing Call Starting”); break; } … Read more
If you want to send something by email your best bet is to use ACTION_SEND. Then it can be picked-up by email app, Twitter app, Facebook app – depending on what apps user may have on his device private void sendBy(final String title, final String text) { Intent i = new Intent(android.content.Intent.ACTION_SEND); i.setType(“text/plain”); i.putExtra(Intent.EXTRA_SUBJECT, title); … Read more
MainActivity.java class has not been defined in your AndroidManifest file , this could be the reason for your crash Add this to your Manifest file <activity android:name=”.MainActivity” android:exported=”true”/> 0 solved After adding SplashScreen, the application crashes [closed]
android -java iphone -objective c ipad -objective c Windows mobile -Visual c++ Windows phone -c# 1 solved programming languages android iphone ipad windows mobile windows phone [closed]