android-listview

问题 Background I'm trying to make an AdapterView (listview, gridview,...) to slowly auto scroll . the user can toggle it whenever he wishes, and it doesn't necessary move all the way to the end of the adapterView. again, i DO NOT wish to make the adapterView to scroll all the way to the bottom since the user should be able to cancel the auto-scrolling. What I've tried for this, i'm using the next code: private static final SCROLLING_RUNNABLE = new Runnable() { @Override public void run() { final

问题 I'm extending TextView and loading a custom typeface. I'm using this custom text view in a list view. When I scroll the list sometimes I get the following debug messages requestLayout() improperly called by com.sample.CustomTextView{52afae4c V.ED.... ......ID 0,27-27,44 #7f060074 app:id/some_id} during layout: running second layout pass public class CustomTextView extends TextView { private FontType mFontType; public CustomTextView(Context context, AttributeSet attrs) { super(context, attrs,

问题 I have a listView that uses a customListAdapter created by me. When user scrolls the list, he/she sees scrolling indicator as usual on the right side. However, I want to show a draggable track-button on the right side, so user will be able to hold that button and quickly scroll through the list. How can I do this? 回答1: I believe the xml values fastScrollEnabled and optionally fastScrollAlwaysVisible are what you want to set for the ListView android:fastScrollEnabled="true" android

问题 I have a list view and I've implemente filtering. Lets say I have items A, B and C. If I type B in the filter box, only item B will be displayed and it is the position 0 of the list (before it was in position 1). So when I call the onClick item, I get the the id/position 0, which leads to displaying details about A instead of B. This is the onclick code: ListView lv = getListView(); lv.setTextFilterEnabled(true); lv.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override

问题 I'm trying to display JSON results in a textview (that resides within a listview). One of the Results is a URL which has to be displayed as "View results". I'm using the following code to display the URL as "View Results": String result = "<a href=\"" + jsonObject.get("url") + "\">" + getString(R.string.hyperlink_text) + "</a>" + "\n"; bbieResults.put("Result", Html.fromHtml(result)); The related xml layout: <TextView android:id="@+id/list_result" android:layout_width="wrap_content" android

问题 I have this main ListView (retrieved using this.getListView() ) in a ListActivity properly populated from a SQLite database. A click on one of its items (entries) calls another activity A2 using startActivityForResult() . I would like to animate that SINGLE entry WHEN the user gets back to the ListActivity. (So I suppose I need to override the onActivityResult() method) How can I animate a single entry once the window gained focus and after the list is updated using notifyDataSetChanged() ? I

问题 The user can add any number of downloads, but download will start one after another i.e. next download will start only after the completion of present download. The user will navigate away from the activity showing download progress in order to add new downloads, and when new file to be downloaded is added, the application navigates back to the activity showing download progress, where it will show the progress of the download, previously added, and keep the presently added file as pending

问题 I am trying to create a list view as follows:- Now, I have made the list view work successfully using the WearableListView adapter. However, I am using static images in the ImageView. What I want is to create this gray and blue kind of animation when a particular list element is focused while scrolling. How do I do that? I tried using a selector xml file for the ImageView but it seems this ListView doesnt make use of this selector(android:state-focused, selected, pressed-nothing works). Any

问题 I have an application where you can create 5 alarms where to be created are displayed in a ListView, and assume that when an element of listView the played alarm but should remove the item from the listview but the alarm is removed to reach the scheduled time always sounds. I have reviewed muchísmos tutorials and guides on how to remove the alarms but none helped me. To delete what I do is save the ID of each alarm in a sqlite database and when I give the alarm eliminiar what I do is I bring

问题 Originally I got this error: The specified child already has a parent. You must call removeView() on the child's parent first at customSection.addView(customLayout); So I added ((LinearLayout)customLayout.getParent()).removeView(customLayout); and now get java.lang.NullPointerException So if the child has a parent, and I must first remove the child from the parent, why does getParent() return null? I have an abstract fragment that allows derived classes to supply a custom layout for the list