onitemselectedlistener

问题 Here is a simple gif of the application in action to show what I mean: Video Gif here I have a Spinner and here is my XML code for it: <Spinner android:layout_width="fill_parent" android:layout_height="wrap_content" android:id="@+id/uniSpinner" android:layout_weight="1.5" android:spinnerMode="dialog" android:prompt="@string/type_default"/> I have followed a few tutorials and browsed around on here to dynamically add content to the spinner using parse.com. The content is added successfully but

问题 Here is a simple gif of the application in action to show what I mean: Video Gif here I have a Spinner and here is my XML code for it: <Spinner android:layout_width="fill_parent" android:layout_height="wrap_content" android:id="@+id/uniSpinner" android:layout_weight="1.5" android:spinnerMode="dialog" android:prompt="@string/type_default"/> I have followed a few tutorials and browsed around on here to dynamically add content to the spinner using parse.com. The content is added successfully but

问题 Here is a simple gif of the application in action to show what I mean: Video Gif here I have a Spinner and here is my XML code for it: <Spinner android:layout_width="fill_parent" android:layout_height="wrap_content" android:id="@+id/uniSpinner" android:layout_weight="1.5" android:spinnerMode="dialog" android:prompt="@string/type_default"/> I have followed a few tutorials and browsed around on here to dynamically add content to the spinner using parse.com. The content is added successfully but

问题 I've seen another similar thread, but I wasn't able to resolve my issue with the given answers. EXPLANATION OF MY GOALS: I have 4 spinners, each has its own ArrayList of strings assigned to it via an adapter. All of these arrays contain the same values at the beginning. I want to remove the selected value (eg. "item" in spinner1) from all the other spinners (remove "item" from spinner2, 3 and 4) when it is selected. PROBLEM: When I select an item for the first two or three times from

问题 Currently am working on listview with spinner.MY requirement is update the listview item based on spinner selection which is in listview item itself.but while performing the selection in spinner it update the all listview items.I think my problem is with in OnItemSelectedListener .And also i figure out while loading listview the spinner ItemSelectedListener executes no of times.I don't understand want i have done on this.Please help me to find the solution for it. Spinner OnItemSelected

问题 Currently am working on listview with spinner.MY requirement is update the listview item based on spinner selection which is in listview item itself.but while performing the selection in spinner it update the all listview items.I think my problem is with in OnItemSelectedListener .And also i figure out while loading listview the spinner ItemSelectedListener executes no of times.I don't understand want i have done on this.Please help me to find the solution for it. Spinner OnItemSelected

问题 I wanted to display selected item in the textView when selected from dropdown list of spinner I implemented AdapterView.OnItemSelectedListener but when I'm selecting item its always null/empty here is my code: @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); spinner = (Spinner) findViewById(R.id.spinner); spinner.setAdapter(new CustomAdapter(MainActivity.this, Languages)); btn.setOnClickListener(this);

问题 I'm trying to remove the OK button completely so that an item is automatically clicked when selected. I noticed that this is Android's preferred way of doing it. I don't need a "cancel" button because I want to prevent null selected. Dialog Fragment public class SingleChoiceClass extends DialogFragment {` final CharSequence[] items = {"b1", "b2", "b3", "b4"}; String selection; @NonNull @Override public Dialog onCreateDialog(Bundle savedInstanceState) { AlertDialog.Builder builder = new

问题 I know that this question has been answered multiple times, but I have not found any of them satisfactory and certainly not elegant. The issue is that OnItemSelected gets fired not only when the user selects an item, but also when the selection is programmatically set. Some answers propose setting a flag for times when the programmer is setting a value for the spinner. However sometimes other android code will set the value outside of your code. A common place for android to set the value is

问题 I am new to Android programming and at the moment I am trying to make some spinners with four array elements (string-array), and then save the current state with shared preferences. I've already done a lot of research, but most of the solutions only work for activities, and I am working in a fragment. The code now is as follows: FragmentSection3.java public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { super.onCreate(savedInstanceState); View v =