spinner

问题 I have placed 4 spinners in a SlidingDrawer . And I have created a string-array in string.xml, like <string-array name="colorArray"> <item>Red</item> <item>Green</item> <item>Blue</item> <item>Orange</item> <item>While</item> <item>Black</item> </string-array> I want to populate the spinners with this array.. For that i had done like, option1 = (Spinner)findViewById(R.id.spinner_first); adapter = ArrayAdapter.createFromResource(getApplicationContext(), R.array.colorArray, android.R.layout

问题 I've been searching the web for the solution to this problem, but, unfortunately, I can't seem to find the answer. I created an XML file for a PopupWindow with a Spinner inside of it. Inside a button event listener, I call the following code to inflate the PopupWindow and display it on the screen. LayoutInflater inflater = getLayoutInflater(); settings_layout = inflater.inflate(R.layout.setting_popout, (ViewGroup) findViewById(R.id.setting_popout)); // Creates a popup window of required width

问题 I hoped that the answers to squeezemylime's question would solve my problem as I also have a UIAlertView without text field but it did not work out well. Instead of a text field I placed a UIActivityIndicatorView animating on it and no buttons used on creation. So the alert gets programmatically dismissed so that the delegate method destroys the spinner on the alert and the alert itself (which has been retained through the time running). So, I'm getting also these wait_fences: messages within

问题 I am trying to customize spinner. I found this tutorial, http://www.gersic.com/blog.php?id=57 It looks great but I am finding some errors all of which is like the following error: No resource identifier found for attribute 'state_dropdown_showing' in package 'android' and the xml which leads to this error is <!-- DROPDOWN SHOWING--> <item android:state_first="true" android:state_dropdown_showing="true" android:drawable="@drawable/btn_dropdown_down" /> <item android:state_middle="true" android

问题 I have a spinner with three items and I use an XML string-array resource to feed it. When you open an activity the spinner normally shows the first item that's in the array list. I'd like to change that and show the text "Select one" in the spinner, before an item is selected. How can I do that? 回答1: You can do that one of two ways. 1) Add "Select One" as the first item in your xml and code your listener to ignore that as a selection. 2) Create a custom adapter to insert it as the first line,

问题 The method onItemSelected doesn't work and I don't know why. Below is my code. Array adapter: public class MyListAdapter extends ArrayAdapter { Spinner spinner; ListView listView; /*public MyListAdapter(Context context, int textViewResourceId) { super(context, textViewResourceId); }*/ public MyListAdapter(Context context) { super(context, R.layout.single_listview_item); } @Override public View getView(int position, View convertView, ViewGroup parent) { View row = convertView; spinner =

问题 This question already has answers here : What is a NullPointerException, and how do I fix it? (12 answers) Closed 4 years ago . Can someone help me to check what's wrong with my code ? I have 4 spinner and their value has been inserted to SQLite .Now I want to retrieve the item out to another spinner which is in Update.java but get java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.Object.toString()' on a null object reference I have checked each

问题 I have spent days to figure this out but no luck. Wish I could get answer from here. I tried to load data into spinner from my content provider using the cursorLoader method. The spinner seem had received the data but I found no data in the dropdown list, although several dropdown items (with no text) had been created. I believe problem is not from my provider because if I use the same cursor to retrieve the data and put it into array, then bind the array to the spinner, then it shows all

问题 This question already has answers here : How to make an Android Spinner with initial text “Select One”? (37 answers) Closed 6 years ago . I am very new to android development and I seem to have an issue that I cannot understand. I have a spinner and the values are getting set just fine but my prompt is not appearing. I have attempted to set this in both the xml and the java code and neither one works at all. Below is my configuration. I feel that I am missing something fundamental but I don't

问题 I have a long-running report and want to show a wait-spinner to the user while it's generating. I have made this work already but am not sure I'm doing it the best or right way. This is using ColdFusion but it could be any language I guess. At the top of the page, I have some Javascript (jQuery) that shows a wait-spinner plus there's a documentReady handler where I take the spinner down. I flush the output ( if it matters) and then the rest of the code works on the report contents. This wasn