android-listview

问题 Hi I am getting list of images from server and tried by displaying through Ultra visual effect. But When I use in listview, it displays with plain similar to listview effect of images when scroll down. How to use ultra visual in listview? My code is as follows which followed from this. Creating animation for images from small to large when scrolling vertical public class Activity { ListView listview = (ListView)findViewById(R.id.list); adapter = new ActorAdapter(getApplicationContext(), R

问题 In my android application i have list view and detail view for each list item. For tablets i have shown list view of items and selected item's detail view as follows. So my problem is how can i highlight the selected item after user clicks on list item. I am using a BaseAdapter to load list view.How can i do this any idea?? EDIT: Yes as chintan khetiya mentioned i have used following xml file as the background of list item but it will not delighted the selected item. What have i missed? <?xml

问题 I put JSON data to the ListView. I want data in the list("ItemTitle", "ItemText", "latit", "longit", "date") can transfer to another activity(result.java)when item is clicked. Here are the code: activity: public class Earthquake extends Activity { public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.earthquake); getData(); } private void getData() { // TODO Auto-generated method stub ListView list = (ListView)findViewById(R.id

问题 I'm fighting with a problem that is driving me crazy: I have a very simple ListView which scroll smoothly on a device and very luggy on another device that is almost 100% the same. here you can find a video of the luggy scroll and here you can find a video of the (almost) smooth scrolling. the slow scroll happens on a device with this specs, the smooth scroll happens on a device with this specs here is the very basic code I used (obviously using ViewHolder pattern), how the hell can it be

问题 I have created custom listview, each row looks like my file custom_row.xml. Is there any way, how to set up different background colors for each row separately (I need to set it because of different values my rows can have). Thanks for any idea 回答1: Since your doing custom listview in the getView method after inflating your custom_row.xml change the background of the return view of inflate method. See sample snippet below: public getView(int position, View convertView, ViewGroup parent) {

问题 I have used lazy loading to download the images and thus populate in horizontal list view. But scrolling is not smooth, specially when scrolling from right to left end. These are my codes: homepg.xml <ScrollView android:id="@+id/scrollView1" android:layout_width="fill_parent" android:layout_height="wrap_content" android:scrollbars="none" > <LinearLayout android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="vertical" > <RelativeLayout android:id="@+id

问题 I have used lazy loading to download the images and thus populate in horizontal list view. But scrolling is not smooth, specially when scrolling from right to left end. These are my codes: homepg.xml <ScrollView android:id="@+id/scrollView1" android:layout_width="fill_parent" android:layout_height="wrap_content" android:scrollbars="none" > <LinearLayout android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="vertical" > <RelativeLayout android:id="@+id

问题 Title basically says it all. The below code doesn't throw any errors, it just doesn't start the new activity. Code below. I have tried modifying startActivity(new Intent(mCtx, NewActivity.class)); to read startActivity(new Intent(MyListActivity.this, NewActivity.class)); I have been testing this in Eclipse with an AVD. Any thoughts on this would be appreciated - thanks! public class MyListActivity extends ListActivity { private Context mCtx; MyContentObserver mContentObserver; @Override

问题 I use a fragment activity to hold a list fragment which renders a bunch of products: public class ProductsListActivity extends SherlockFragmentActivity { @Override public void onCreate(Bundle savedInstanceState) { setTheme(R.style.Sherlock___Theme); super.onCreate(savedInstanceState); setContentView(R.layout.fragment_products_list); // setFastScrollEnabled(true) ? } } ... <!-- fragment_products_list.xml --> <?xml version="1.0" encoding="utf-8"?> <fragment xmlns:android="http://schemas.android

问题 I am working on a small project where I create a listview bound to an ArrayAdapter. In the getView() function of ArrayAdapter, I do a loading of images from web urls on thread, and set them to list items (based on position of course, so url[0] image is set to list_item[0] etc). It all seems to work well. However when I was testing the app, I noticed that if I wait my listview to fully display, then perform a fast scroll back and forth, I see sometimes the image on one list item is misplaced