android-gridview

List out all images from SD card.

由 被刻印的时光 ゝ 提交于 2019-11-26 18:25:05
问题 Hi I am developing android Gallery app . I am fetching the images from a folder in sd card and displaying it on a grid view as below public static ArrayList<String> getFilePaths() { ArrayList<String> filePaths = new ArrayList<String>(); File directory = new File(android.os.Environment.getExternalStorageDirectory() + File.separator + AppConstant.PHOTO_ALBUM); // check for directory if (directory.isDirectory()) { // getting list of file paths File[] listFiles = directory.listFiles(); // Check

OnClickListener not working for first item in GridView

由 血红的双手。 提交于 2019-11-26 16:15:03
问题 I have a problem with creating a GridView-based calendar. Here is the Grid: This is supposed to be a calendar populated with events, so I have my adapter implement OnClickListener and I set that listener for every button in the calendar. It works perfectly for every single button EXCEPT the first one(in this case number 30). When I click it just doesn't work, but when I click on another button after I have attempted to click on the first one, it performs the click for the first one just

gridView with different cells sizes, pinterest style

由 不羁岁月 提交于 2019-11-26 12:38:39
问题 Background GridView is a class that extends AdapterView , which means it shows cells in a grid-style efficiently, recycling old views to be shown as new ones when the user scrolls it. The problem Sometimes, you would want to get a special UI, which resembles the Windows Phone Tiles UI, having cells of different sizes on top of each other. Something like this: AABB AACC AADD AADD each letter represents a part of its cell, so cell A is 2x4 , cell B and cell C take 2x1 each , and cell D is 2x2 .

GridView VS GridLayout in Android Apps

由 旧时模样 提交于 2019-11-26 09:15:39
问题 I have to use a grid to implement Photo Browser in Android, and I want to know the difference between GridView and GridLayout . I\'m using GridView to display the images dynamically. 回答1: A GridView is a ViewGroup that displays items in two-dimensional scrolling grid. The items in the grid come from the ListAdapter associated with this view. This is what you'd want to use (keep using). Because a GridView gets its data from a ListAdapter, the only data loaded in memory will be the one

GridView rows overlapping: how to make row height fit the tallest item?

由 一笑奈何 提交于 2019-11-26 06:57:30
问题 Like this previous person, I have unwanted overlap between GridView items: Notice the text, in every column except the rightmost one. Where I differ from that previous question is that I don\'t want a constant row height . I want the row height to vary to accommodate the tallest content in each row, for efficient use of screen space. Looking at the source for GridView (not the authoritative copy, but kernel.org is still down), we can see in fillDown() and makeRow() that the last View seen is

how to run media scanner in android

由 北慕城南 提交于 2019-11-26 06:38:28
问题 I want run the media scanner while capturing the image. After capturing, the image it is updated in grid view. For that I need to run media scanner. I found two solutions to run media scanner one is the broadcast event and other one is running media scanner class. I think in Ice Cream Sandwich (4.0) media scanner class is introduced.Before versions need to set broadcast event for running media scanner. can any one guide me how to run media scanner in right way. 回答1: I have found it best

GridLayout (not GridView) how to stretch all children evenly

由 安稳与你 提交于 2019-11-26 03:14:59
问题 I want to have a 2x2 grid with a buttons inside. This is only ICS so I am trying to use the new GridLayout given. Here\'s the XML of my layout: <?xml version=\"1.0\" encoding=\"utf-8\"?> <GridLayout xmlns:android=\"http://schemas.android.com/apk/res/android\" android:id=\"@+id/favorites_grid\" android:layout_width=\"match_parent\" android:layout_height=\"match_parent\" android:background=\"#00ff00\" android:rowCount=\"2\" android:columnCount=\"2\"> <Button android:text=\"Cell 0\" android

Gridview with two columns and auto resized images

由 余生长醉 提交于 2019-11-26 00:56:35
问题 I\'m trying to make a gridview with two columns. I mean two photos per row side by side just like this image. But my pictures have spaces between them, due to the fact that it\'s not the same size. Here is what I\'m getting. as you can see the first picture hides the legend which shows the contact name and phone number. and the other pictures are not stretched correctly. Here is my GridView xml file. As you can see the columnWidth is set to 200dp . I\'d like it to be automatic , so the

How ListView&#39;s recycling mechanism works

由 痞子三分冷 提交于 2019-11-25 22:13:18
问题 So I have this problem I had before, and naturally I asked for help on here. Luksprog\'s answer was great because I had no idea about how ListView and GridView optimized itself with recycling Views. So with his advice I was able to change how I added Views to my GridView. Problem is now I have something that does not make sense. This is my getView from my BaseAdapter : public View getView(int position, View convertView, ViewGroup parent) { if(convertView == null) { LayoutInflater inflater =

Gridview with two columns and auto resized images

由 断了今生、忘了曾经 提交于 2019-11-25 20:11:40
I'm trying to make a gridview with two columns. I mean two photos per row side by side just like this image. But my pictures have spaces between them, due to the fact that it's not the same size. Here is what I'm getting. as you can see the first picture hides the legend which shows the contact name and phone number. and the other pictures are not stretched correctly. Here is my GridView xml file. As you can see the columnWidth is set to 200dp . I'd like it to be automatic , so the pictures will resize automatically for each screen size. <?xml version="1.0" encoding="utf-8"?> <GridView xmlns
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