android – Dynamically add TableRow to TableLayout-ThrowExceptions

Exception or error: When a button is clicked, the following method is run: public void createTableRow(View v) { TableLayout tl = (TableLayout) findViewById(R.id.spreadsheet); TableRow tr = new TableRow(this); LayoutParams lp = new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT); tr.setLayoutParams(lp); TextView tvLeft = new TextView(this); tvLeft.setLayoutParams(lp); tvLeft.setBackgroundColor(Color.WHITE); tvLeft.setText(“OMG”); TextView tvCenter = new TextView(this); tvCenter.setLayoutParams(lp); tvCenter.setBackgroundColor(Color.WHITE); tvCenter.setText(“It”); TextView tvRight = new …

how to add items to the spinner dynamically in android?-ThrowExceptions

Exception or error: how to add items to the spinner dynamically in android? How to solve: Spinner spinner = (Spinner)findViewById(R.id.mySpinner); ArrayAdapter<String> spinnerAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, android.R.id.text1); spinnerAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); spinner.setAdapter(spinnerAdapter); spinnerAdapter.add(“value”); spinnerAdapter.notifyDataSetChanged(); the above is in case of the array adapter, I believe you know how to populate values with ArrayAdapter . How can we do …

android – Add a view dynamically to the item of the RecyclerView-ThrowExceptions

Exception or error: I want to add the extra TextView to the item of the RecyclerView.Adapter based on the ModalObject sent to the RecyclerView.Adapter Example: I had a modal object with isAddText variable. In onCreateViewHolder will create the Holder Object with sending the itemView as an parameter. @Override public SolventViewHolders onCreateViewHolder(ViewGroup parent, int viewType) { …

navigation drawer – dynamic adding item to NavigationView in Android-ThrowExceptions

Exception or error: I want to build NavigationDrawer with the possibility of adding new items (such as yahoo weather App with adding new cities). I have working NavigationDrawer with NavigationView, in menu I have permanent fields: <group android:id=”@+id/group” android:checkableBehavior=”single”> <item android:checked=”false” android:id=”@+id/item1″ android:icon=”@drawable/ic_inbox_black_24dp” android:title=”Item1″ /> <item android:checked=”false” android:id=”@+id/Item2″ android:icon=”@drawable/ic_inbox_black_24dp” android:title=”Item2″ /> </group> I’m trying to …