spinner

问题 I'm using two Spinners to show the items I'm getting from the json response. I have 2 problems right now. When u check my logcat u can see there are items repeating (Right side list, u can see so many pan). I want to have 1 item only once in my Spinner. I want to use something similar to distinct we use in sql databases. My second problem is, Select pan in the 1 spinner then 2nd spinner should contain items related to pan. (select pan in 1st spinner and 2nd should display only Pan large, pan

问题 I'm using two Spinners to show the items I'm getting from the json response. I have 2 problems right now. When u check my logcat u can see there are items repeating (Right side list, u can see so many pan). I want to have 1 item only once in my Spinner. I want to use something similar to distinct we use in sql databases. My second problem is, Select pan in the 1 spinner then 2nd spinner should contain items related to pan. (select pan in 1st spinner and 2nd should display only Pan large, pan

问题 Using shared prefernences to save String but having difficulty saving my spinner. public class MainActivity extends Activity { Spinner spnExample; Button btnSave; ArrayAdapter<CharSequence> adapter; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Button btnSave = (Button) findViewById(R.id.btnSave); SharedPreferences prefs; loadData(); spnExample = (Spinner) findViewById(R.id.spnExample); adapter =

问题 I try to create a Spinner for choosing a color. The color should display in the Spinner-header. Here is a screenshot: But as you can see, the color don't fill my 9-patch Spinner background (header). Here is the 9-patch background: But I don't understand why... I implemented a custom ArrayAdapter, here is the code: spinner = (Spinner) findViewById(R.id.spinner); ArrayAdapter<String> adapter = new MyArrayAdapter(this, R.layout.spinner_row, R.id.textView1, items); spinner.setAdapter(adapter);

问题 I am learning about Spinners in PyGtk. I executed this program : #!/usr/bin/env python import gtk class Spinner: def __init__(self): window=gtk.Window() window.set_default_size(200,200) vbox = gtk.VBox(False, 5) hbox = gtk.HBox(True, 5) self.spinner = gtk.Spinner() self.spinner.set_property("num-steps", 10) button_start = gtk.Button("Start") button_stop = gtk.Button("Stop") window.connect("destroy", lambda q : gtk.main_quit()) button_start.connect("clicked", self.start_animation) button_stop

问题 How can I change the color of the spinner's popup scrollbar? For some reason the color of the scrollbar is currently white on a white background, it is not visible. 回答1: add android:scrollbarThumbVertical="@drawable/yourdawable //in your spinner yourdrawable.xml <?xml version="1.0" encoding="utf-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android"> <gradient android:startColor="your color" android:endColor="your color" android:angle="45"/> <corners android:radius="6dp" /> <

问题 I got a Spinner element which I populate with data from a Cursor using a SimpleCursorAdapter . Also I'm using setViewBinder for a custom row layout of the Spinner . Everything works out fine, the Spinner gets the data and the Spinner items use the custom layout. But clicking the items from the Spinner drop down view doesn't do anything . It doesn't set the selected item as selected and doesn't close the drop down view. I don't know what I have to do so the selected item from the list is

问题 I got a Spinner element which I populate with data from a Cursor using a SimpleCursorAdapter . Also I'm using setViewBinder for a custom row layout of the Spinner . Everything works out fine, the Spinner gets the data and the Spinner items use the custom layout. But clicking the items from the Spinner drop down view doesn't do anything . It doesn't set the selected item as selected and doesn't close the drop down view. I don't know what I have to do so the selected item from the list is

问题 My data comes from Firebase database. I successfully populated the busNum to the spinner . But my problem is whenever I got to select the busnum , nothing shows up on my spinner . Here are some of codes. List<String> busnum = new ArrayList<String>(); busRef = new Firebase(Config.FIREBASE_URL_BUSNUMBER); busRef.addListenerForSingleValueEvent(new ValueEventListener() { @Override public void onDataChange(DataSnapshot dataSnapshot) { for (DataSnapshot postSnapshot : dataSnapshot.getChildren()) {

问题 I'm using Xamarin Android in Visual Studio 2017. I have a few existing Spinners which are created in xml layout which all work perfectly and are styled exactly how I want them to look. The code for these is typically: <Spinner android:spinnerMode="dialog" android:id="@+id/SpnProject" android:layout_width="fill_parent" android:layout_height="40dp" android:layout_marginBottom="8dp" android:paddingTop="8dp" android:paddingBottom="8dp" android:paddingStart="8dp" android:paddingEnd="8dp" android