[Solved] HttpUrlConnection working on api level < 11, not working on api level >11 on android

You need to implement all the Network Calls in background Thread via AsyncTask. Here is a dummy template, you can modify it according to your needs: private class LongOperation extends AsyncTask<String, Void, String> { @Override protected String doInBackground(String… params) { //Send your HTTP REQUESTS HERE. return “”; } @Override protected void onPostExecute(String result) { //UPDATE … Read more

[Solved] JavaScript sorting and grouping items in array

Use objects for the grouping. var categories = {}; function incrementBy(category, value) { if (!categories[category]) { categories[category] = 0; } categories[category] += value; } var datasetarr = []; var pos; for(var i = 0; i < arr.length; i++){ console.log(‘unsorted ‘ + arr[i].type + ‘ ‘ + arr[i].quantity); incrementBy(arr[i].type, arr[i].quantity) } for(var category in categories){ console.log(‘sorted … Read more

[Solved] Why it print out an empty array instead of the array appended with values for the first time in viewDidLoad()?

The call to API.Tag.observeTagPool is asynchronous and it will finish after fetchTagPool() has returned the empty self.tagArr. You need to change fetchTagPool to return the value through a callback function like this: override func viewDidLoad() { super.viewDidLoad() // Note: This will print AA after viewDidLoad finishes // Use trailing closure syntax to pass the trailing … Read more

[Solved] Array has more values than expected

for(int i = 0; ; i++) When does your loop end?!?!? Your second condition in for (the testing expression) is evaluated as true (at least as long as i<4). You need for(int i = 0; i < 4 ; i++) Otherwise it may break anytime after i>=4, but not before, since all components of a … Read more

[Solved] Creating Array of Objects c++

C++ does not have an associated length property for arrays. (See How do I find the length of an array?) You can do something like this: int length = sizeof(animals)/sizeof(animals[0]); Then, before accessing member variables of elements (like this: animals[i] -> hasFur(true);), you need to first create objects. animals[i] = new Animal(); // assuming the … Read more

[Solved] Swift: fatal error: Index out of range

Create two sections One for HomeArr and one for AutoArr. I believe for each section you wanna show a additional cell with some title. So below code should help you. extension ViewController : UITableViewDataSource { func numberOfSections(in tableView: UITableView) -> Int { return 2 } func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int { … Read more