android-gridview

How to make a Button Visible/Gone on scroll listener of gridView in Android

天涯浪子 提交于 2019-12-22 11:47:09
问题 I have a Custom gridView and a Button in Frame Layout. Code is following <RelativeLayout android:layout_width="match_parent" android:layout_height="match_parent"> <GridView android:id="@+id/gridview" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_alignParentBottom="true" android:layout_below="@+id/Rel_Spinner" android:layout_centerHorizontal="true" android:gravity="center" android:numColumns="auto_fit" android:stretchMode="columnWidth" > </GridView>

How to set a background drawable on a clicked GridView item in Android?

[亡魂溺海] 提交于 2019-12-22 08:38:40
问题 I have a GridView with a bunch of icons and I need to select one. And by select I mean: I need the drawable id to store into a database (so I can access it later) I need to draw some kind of visual cue on the grid to let the user know which icon is currently selected I found this: http://groups.google.com/group/android-developers/browse_thread/thread/f08a58167dbaa8c8 So I guess setSelection is out of the picture and I can't use it to select the icon itself nor draw the visual cue. I know the

Android Hello GridView Tutorial Will Not Display Images

点点圈 提交于 2019-12-21 03:52:44
问题 First time poster! I am new to Android development and have been following Google's HelloView tutorials without problems... until the HelloGridView tutorial. For some reason I cannot get any images to display, only a black background. I originally followed this tutorial: http://developer.android.com/resources/tutorials/views/hello-gridview.html but moved on to this nearly identical one: http://developer.android.com/guide/tutorials/views/hello-gridview.html in order to eliminate some added

Why items change order upon scrolling in Android GridView?

∥☆過路亽.° 提交于 2019-12-21 03:42:20
问题 I have a GridView in android which I fill it with data retrieved from a xml resource. For example I have 15 items in the GridView which are placed in order. The overall height exceeds the Screen height so i have to scroll to see the rest of the items. The problem is when I scroll back up, the order of the invisible rows have changed. It's a mysterious behavior as sometimes items swap rows with each other. Here is my getView method: public class ImageAdapter extends BaseAdapter { public

How to get rid of spaces in gridview

主宰稳场 提交于 2019-12-20 10:36:48
问题 This thing has been doing my head in for a little while now and I can't seem to be able to solve it. I've got a grid view, in which I display a few bitmaps. I add a padding of 5dp on all image sides when filling up my image view via the adapter (iv.setPadding(5, 5, 5, 5);), but somehow, there's more space being added to the top and bottom on each item on my gridview. I know this has already been asked a few times here, and some of them even have accepted answers, however, when I try to sue

how to use gridview in onPostexecute AsyncTask

Deadly 提交于 2019-12-20 04:34:25
问题 i have following code , i want image load first from drawable folder and after api. image successfully load from drawable folder using getData() method , but i don't know how to load image from url and update gridview . onPostExecute method when i update my grid below comment line crash the application that's why i comment my gridview code in method onPostExecute method please check and help me this I am New in Android please show example public class MainActivity extends AppCompatActivity {

Expandable Height GridView inside scrollview

*爱你&永不变心* 提交于 2019-12-20 00:20:12
问题 i am using Expandableheightgrideview inside Scroll view, my problem is when i try to add content in gridview, the content is not expand properly, its displaying 2 scroll bar when its height is exist(its suppose to be an one common scroll bar for entire page).Bottom of the content is hide to view bottom content in gride view need to scroll down. i used exGridView.setExpanded(true); but no luck <?xml version="1.0" encoding="utf-8"?> <ScrollView xmlns:android="http://schemas.android.com/apk/res

To use ProgressDialog till GridView gets loaded from webservice

对着背影说爱祢 提交于 2019-12-19 11:59:12
问题 I am fetching Image and Text for GridView from a webservice, so its takes some time to display the GridView. I want to show a ProgressDialog till Grid gets fully loaded. What I have done till now is as below: public class PCGridMain extends Activity { WebService web = new WebService(); private GridView gridView; ProgressDialog dialog; Bitmap icon; int i, total; URL url= null; List<GridItem> list; @Override public void onCreate(Bundle grid) { super.onCreate(grid); dialog = ProgressDialog.show

Loading images in GridView using Universal Image Loader

亡梦爱人 提交于 2019-12-19 05:46:43
问题 I'm using the Universal Image Loader 1.8.6 library for loading dinamically images taken from web. The ImageLoaderConfiguration configuration is the following: ImageLoaderConfiguration config = new ImageLoaderConfiguration.Builder(getApplicationContext()) .memoryCacheExtraOptions(480, 800) // default = device screen dimensions .threadPoolSize(3) // default .threadPriority(Thread.NORM_PRIORITY - 1) // default .denyCacheImageMultipleSizesInMemory() .memoryCacheSize(2 * 1024 * 1024)

GridView item list selector for multiple items not working in Android

筅森魡賤 提交于 2019-12-19 05:14:34
问题 I want to draw selector on long press as shown in the picture. When I do long press on one item, the CAB menu is activated. But the list selector indicator goes off once after clicking. I want that list selectors to be active till the CAB menu is active for allowing multiple selection. And the color should toggle if I do double tap. This code works as a flicker when I click on it. Any one faced similar thing? Is there a hack to bring this functionality? Gridview with multiple selection: