spinner

问题 Is there a way to add a footer inside a spinner drop down list? For instance, say I am populating a spinner from a database, but I want a selection at the bottom of the list regardless of how I arrange the list. The list might be "Database Item 1, 2.., 3..." and at the bottom of the list a footer choice of "Add Item to Database." So far I have used your CustomSpinner class as follows: public class CustomSpinner extends Spinner implements OnItemClickListener { private AlertDialog myDialog =

问题 TLDR: My spinner displays the wrong color for a split second. I have a problem with my spinner. Whenever I run the app, if the activity is not cached in memory, it sometimes lags. The text is a default color (like black) before I can set it to the right color. It looks really unprofessional. Video: Please watch this screen recording to see this in action: https://drive.google.com/file/d/0By2AG5yaBEhMRnRsbVBDU251STQ/view How it looks for one split-second while loading the page: How it looks

问题 TLDR: My spinner displays the wrong color for a split second. I have a problem with my spinner. Whenever I run the app, if the activity is not cached in memory, it sometimes lags. The text is a default color (like black) before I can set it to the right color. It looks really unprofessional. Video: Please watch this screen recording to see this in action: https://drive.google.com/file/d/0By2AG5yaBEhMRnRsbVBDU251STQ/view How it looks for one split-second while loading the page: How it looks

问题 How can I know if an item in spinner has been selected in android?? 回答1: See here: http://developer.android.com/resources/tutorials/views/hello-spinner.html You have to implement an OnItemSelectedListener . Here the example from the link: public class MyOnItemSelectedListener implements OnItemSelectedListener { public void onItemSelected(AdapterView<?> parent, View view, int pos, long id) { Toast.makeText(parent.getContext()), "The planet is " + parent.getItemAtPosition(pos).toString(), Toast

问题 How can I know if an item in spinner has been selected in android?? 回答1: See here: http://developer.android.com/resources/tutorials/views/hello-spinner.html You have to implement an OnItemSelectedListener . Here the example from the link: public class MyOnItemSelectedListener implements OnItemSelectedListener { public void onItemSelected(AdapterView<?> parent, View view, int pos, long id) { Toast.makeText(parent.getContext()), "The planet is " + parent.getItemAtPosition(pos).toString(), Toast

问题 i have a spinner with an arrayadapter that is dynamically managed. when it gets displayed, the spinner text also displays the radio button. how do i get rid of this radio button? the drop down arrow is all strecthed and yucky... thats my problem. NOTE: i'm not talking about the radio buttons that appear in the list that is displayed when i select the drop down on the spinner. here are the appropriate code snippet... couple of points: this code is in the constructor of widget which is a

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 have an Android form that needs to update itself based on certain selections. The form is currently made up of 2 Spinners (A and B). Spinner B not created until Spinner A's selection is made. After the selection is made B will be displayed to the view and it's contents dynamically filled based on A's selection. Here is my code: public class MyForm extends

问题 I use setOnItemSelectedListener on a spinner. The listener is triggered if I change the selection but not if I select the same item that is already selected. I need to be nofified even if the user select the same item that is already selected. I tought about using setOnItemClickListener but it is not supported by the Spinner . Any hints ? TIA 回答1: If you're still looking for a solution to this question, Regis, it may be worth having a look at a related question I asked a while ago, which has

问题 I have two classes : DineOutActivity.java and Userpersonal .java I HAVE a spinner(spinner1) defined in DineOutActivity.java I am creating a method , so that on image click in UserPersonal.java and calling the spinner method. so as when i click spinner1 from DineOutActivity.java and come to User Personal.java and then click submit it will redirect to another page. here is my DineOutActivity.java public class DineOutActivity extends Activity { Spinner sp; @Override public void onCreate(Bundle

问题 I trying to make a custom Spinner containing Id and Title. This Spinner displays Title but everywhere in my code I can access to selected Id. how can I do it. it's like ComboBox in C#. thanks. 回答1: if you have id's and names in the separate arrays then based on the spinner selected item position you can get selected item id. spinner.setOnItemSelectedListener(new OnItemSelectedListener() { public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2, long arg3) { System.out.println(Id