I think in your code you are comparing two strings using equals function like String1.equals(String2) in your case String1 is null (not initialized), and it is the root cause of this exception. For example: String string1 = getInputText(); boolean status = false; if(string1 != null) { status = string1.equals(string2); } So please check and ensure … Read more
Problem is you are setting wrong layout in your UserLogin Activity. You are setting activity_main.xml instead you need to set your UserLogin Activity layout XML file . You are doing like this setContentView(R.layout.activity_main); Instead you need to do like setContentView(R.layout.YOUR_USER_LOGIN_ACTIVITY_LAYOUT); 8 solved Intent throwing error in click listener in Android Studio
I suggest Use JSONObject keys() to get the key and then iterate each key to get to the dynamic value. according to your json string code must be something look like this:- //refers to the current element in the array “data” JSONObject mainObj = new JSONObject(yourString); JSONObject dynamicValue1 = mainObj.getJSONObject(“dynamicValue1”); Iterator key = dynamicValue1.keys(); while(key.hasNext()) … Read more
Introduction Sharing text and numbers over the internet can be a daunting task, especially when it comes to developing a client-side application. Fortunately, there are a few simple solutions that can help you quickly and easily share text and numbers over the internet. In this article, we will discuss how to create a simple sharing … Read more
Introduction If you are getting an error like this and your application is closing, it can be very frustrating. It is important to understand why this is happening and how to fix it. In this article, we will discuss the causes of this error and provide some solutions to help you get your application running … Read more
You have not initialized your variable mStockageDao. Do this in onCreate() method: StockageDAO mStockageDao = new mStockageDao(AddStockageFragment.this); And before the code: Stockage createdStockage = mStockageDao.createStockage(stockqte,datestock,seulstock,LocalStock,1); call this mStockageDao.open(); NOTE: When you are done querying your database, call mStockageDao.close(); solved NullPointerException inserting into an SQLite database? [closed]
Introduction When developing an Android application, it is common to encounter errors related to intent throwing in the click listener. This can be a frustrating experience, as it can be difficult to identify the source of the error and how to fix it. Fortunately, there are a few steps that can be taken to troubleshoot … Read more
Introduction Parsing JSON strings in Android can be a tricky task, but with the right tools and techniques, it can be done quickly and easily. This post will provide an overview of the different methods available for parsing JSON strings in Android, as well as provide some tips and tricks for getting the most out … Read more
Check below code Instead of this pass context. public class RecyclerAdapter extends RecyclerView.Adapter { String [] name={“Androidwarriors”,”Stackoverflow”,”Developer Android”,”AndroidHive”,”Slidenerd”,”TheNewBoston”,”Truiton”,”HmkCode”,”JavaTpoint”,”Javapeper”}; Context context; LayoutInflater inflater; public RecyclerAdapter(Context context) { this.context=context; inflater=LayoutInflater.from(context); } @Override public RecyclerViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { View v=inflater.inflate(R.layout.item_list, parent, false); RecyclerViewHolder viewHolder=new RecyclerViewHolder(v); return viewHolder; } @Override public void onBindViewHolder(RecyclerViewHolder holder, int position) { … Read more
You’ve two arrayList one local and another one global. onClick() method you’re adding your item in global arrayList having reference name fruits but your ListView using local arrayList also having same name fruits, so don’t create local list inside onCreate() method. Also after adding new fruit call notifyDataSetChanged() on your adapter. ArrayList<String> fruits; ListAdapter myAdapter; … Read more
I think you have problem in selecting multiple list items or either on knowing which list item of activity is selected or which one is unselected . all of these things can be easily done by creating a getter setter class with two custom field one is string selected and one is unselected with all … Read more
How about you try this public List<Registration> getList(SearchReport sc) List<Registration> crReg = new ArrayList<Registration>(); String selectQuery = “SELECT * FROM ” + TABLE_REGISTRATION + ” WHERE ” + DATE_COLUMN + ” BETWEEN ” + sc.getFrom() + ” AND ” + sc.getUntil() + ” AND ” + sc.getName(); SQLiteDatabase db = this.getReadableDatabase(); Then List<Registration> src = … Read more
The microphone can only be used by one process at a time. You can check if the Sinch video call is occupying the microphone using the snipped below public static boolean checkIfMicrophoneIsBusy(Context ctx){ AudioRecord audio = null; boolean ready = true; try{ int baseSampleRate = 44100; int channel = AudioFormat.CHANNEL_IN_MONO; int format = AudioFormat.ENCODING_PCM_16BIT; int … Read more
From a static function, you can call only static function or use static variable. The linking is done at run time. So, though your compilation will be fine but at run time it will fail when call is made. Try making your function non static if you want to make that call. OR The only … Read more
try this : https://github.com/SimonVT/android-calendarview or search on github for more libraries solved I need a calender code for API 18 [closed]