Gridview android example abhiandroid

Tuesday, 27 November In android GridView is a view group that display items in two dimensional scrolling grid rows and columnsthe grid items are not necessarily predetermined but they are automatically inserted to the layout using a ListAdapter. Users can then select any grid item by clicking on it. GridView is widely used in android applications. An example of GridView is your default Gallery, where you have number of images displayed using grid.

Android Grid View

Adapter Is Used To Fill Data In Gridview: To fill the data in a GridView we simply use adapter and grid items are automatically inserted to a GridView using an Adapter which pulls the content from a source such as an arraylist, array or database.

From there you can drag and drop on virtual mobile screen to create it. Alternatively you can also XML code to create it. Even if the phone is in portrait mode or landscape mode it automatically fill the whole space.

Attributes of GridView:. Lets see different attributes of GridView which will be used while designing a custom grid view:.

gridview android example abhiandroid

Below is the id attribute example code for Gridview:. Below is the numColumns example code where we define 4 columns to show in the screen.

This could be in pixel px ,density pixel dp or scale independent pixel sp.

How to Implement GridView in Android Studio - GridView - Android Coding

Below is the horizontalSpacing example code with explanation included where horizontal spacing between grid items is 50 dp. This should be in px, dp or sp. Below is the verticalSpacing example code with explanation included, where vertical spacing between grid items is 50dp. This could be in px, dp or sp. Below is the columnWidth example code. Important Note: In the below code we also used listSelector property which define color for selected item.

Also to see the output of columnWidth using listSelector we need to use Adapter which is our next topic. The below code is not sufficient to show you the output. An adapter is a bridge between UI component and data source that helps us to fill data in UI component. It holds the data and sends the data to adapter view, then view can takes the data from the adapter view and shows the data on different views like as list view, grid view, spinner etc.

In android commonly used adapters which fill data in GridVieware:. Array Adapter. Base Adapter. Custom Array Adapter. Now we explain these adapters in detail:.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. The dark mode beta is finally here.

Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I want to put an gridview with images inside an expandable list I've already make that, but the gridview don't show all item I've done tons of searches my own for solving this situation, but didn't find anything so far, so i've made a workaround. Learn more. GridView inside Expandable list in android Ask Question. Asked 8 years, 11 months ago.

Active 3 years, 2 months ago. Viewed 22k times. How can i make my expandable list child adapt to the gridview size? Pradip Shenolkar 1 1 gold badge 10 10 silver badges 28 28 bronze badges. Zasuk Zasuk 1 1 gold badge 7 7 silver badges 14 14 bronze badges. Hey can you please share the full coding? Active Oldest Votes. You're welcome, happy coding further! Anuja Piyadigama: parentView is a view optionally containing the gridwho's width can be determined, and matches the width of the grid.

If you have fixed grid width, you can use it there. The intValues is a list of integers that are fed into the grid. Based on the number of these integers, and knowing the column count you are able to calculate how many rows are necessary. Hope this clears up things a bit.

So do I need to get the LinearLayout as my parentView or is that a single Grid are you talking about? Anuja Piyadigama, you see if the parent parameter does work for you or not as I understand, it refers to the LinearLayout you are looking for, so instead of using parentView you could use the parent parameter's width ; as of the intValuesit does not matter that the length of this list changes, with a proper BaseAdapter extension for the ExpandableListView you can call on it notifyDatasetChanged whenever it is necessary, so you just feel free to count the items in the JSON list, and calculate with it.

Jaydeep 8 8 bronze badges. Your solution works. I think this is the easiest to solve this problem. Vikas Gulati Vikas Gulati 2 2 gold badges 10 10 silver badges 24 24 bronze badges. Mahi Mahi 1, 1 1 gold badge 14 14 silver badges 28 28 bronze badges.

Sign up or log in Sign up using Google. Sign up using Facebook.As a ListView is instantiated and the rows are populated such that the full height of the list is filled. After that no new row items are created in the memory. As the user scrolls through the list, items that leave the screen are kept in memory for later use and then every new row that enters the screen reuses an older row kept in the memory.

Clicking the row would display the SnackBar with the text elements of that row. Clicking the info will display a SnackBar with information specific to that row. The data model that is contained in the ArrayList is shown below. Also the list rows are animated when scrolled. The two animation xml resource files are given below. The MainActivity. Along with that a random ArrayList of DataModel objects is populated. The output of the application in action is shown below. This brings an end to this tutorial.

Android GridView with Examples

I have a problem with disappearing rows. What could go wrong? I use Android 9 on Nokia 6. Ok, I know, that when I try to hide TextViews in my custom rows by setting textSize or height to 0dp, there are some errors. After scrolling down and up textViews that should be there disappear by setting height or textSize to 0. How should I correctly hide them to remove empty spaces between text lines row contains a few TextViews placed vertically?

How can I pass the data from the custom adapter to the main activity when the imageview is clicked? Thank you. An explanation would be appreciated. How to do in the correct way this inserted code as PHP uses simple include file …. Need help. The problem about all custom listview tutorials are this : What will happen if i want to add more than 1 Strings to get?

I cant use toString method for more then one String. For example i got 4 Stringss. What can i do in this situation? How to load image in custom list view with array of url using picasso library? Got the answer. Answer :Picasso. Activity; import android. Context; import android. Bundle; import android. LayoutInflater; import android.

View; import android. ViewGroup; import android.GridView is the dynamical view, meaning that it inserts the data item automatically using the adapter. We will also learn how to deal with click event. Adapter is the simple JAVA class.

We can make custom adapter by extending the ArrayAdapter or Base adapter. For making our gridview a responsive through various screen size, you can give it a full height or you can define weight with linearlayout. For specific purpose, you can also define it in the dp values to make static height in any screen size.

Specific integer number is static and number of columns will be of this value regardless of screen width.

Android ListView with Custom Adapter Example Tutorial

First is giving us the context. Second is the arraylist with the objects of the ImageModel class. While integer array myImageList contains the integer reference to the images present in the drawable folder.

Now compiler will populate the arraylist imageModelArrayList using the populateList method. Now focus on the constructor of the GridArrayAdapter. We will create this class in the next step. First parameter is simply a context.

Then compiler will set the image and text using the integer and string array which are our data source. Tags: android android basics gridview. July 29, March 14, January 2, Your email address will not be published. Save my name, email, and website in this browser for the next time I comment. GridView is a view group that displays the items in the two dimensional view.

Row and Column This grid view items are vertically scrollable but not horizontally. Context. LayoutInflater. View. ViewGroup. BaseAdapter. ImageView. TextView .Let us go from Left to Right. Now, adapter will pass this data to the ListView, GridView or Spinner which have requested the data as per the Orange arrow. We can compare the mechanism of android adapter with the Electricity data sourceMobile ListView etc.

You can say that mobile device is listview, electricity is a data source and electric adapter is the android adapter. Whenever the data source is in the form of the ArrayList, this type of adapter is the best suitable option to use for ListView, GridView or Spinner. Whenever we have static data that are not updating with time, we can use simple adapter to populate them in listview or others.

You also specify an XML file that defines the views used to display the row, and a mapping from keys in the Map to specific views. Binding data to views occurs in two phases. Third one is the reference to the XML layout file which is making view for every row of listview. But when there are dynamic data which are updating frequently, then we need to make custom simple adapter. For making click events of the children of the listview row item, we also require custom simple adapter. Simple adapter can not handle click events.

In the newView method, you simply inflate the view and return it. This view is the XML layout file for listview row item. In the bindView method, you set the elements of your view. You can set the text to textview or set imageview in this method. Now let us make a listview example to actually see, how does adapter provides data to listview from the data source.

String array myImageNameLiist contains the names of the images in the string format. Tags: adapter android android basics. February 5, February 19, February 12, Good sample. I tried a CursorAdapter and added an additional EditText for each row for database-independent user-input. Database contains e. Name and number and i would like to add a comment to each name not stored within the database.

Your email address will not be published. Save my name, email, and website in this browser for the next time I comment.These days, people are always being told to relax, go off-grid and put their smartphones down.

Instead, get onto our grid—our Android GridView tutorial, that is! Download the starter project here. Included are the image assets for each book and a list of Book objects describing the contents of our Baby Bookcase.

Build and run the project on your preferred emulator or Android device—you should see the most amazing blank screen ever:. The snippet above specifies a GridView with some customized properties.

Empty grids are hungry for data to display. In the project navigator pane, right-click on com. The adapter acts as the middleman between the GridView and the data source.

gridview android example abhiandroid

It loads the information to be displayed in your grid view from a data source, such as an array or database query, then creates a view for each item. Now that you have a basic adapter implementation, you can use this class as the data provider for the GridView in MainActivity. Within onCreate in MainActivity. This new layout file will be used to represent your Book objects inside the grid. Each book will be drawn inside a cell that contains four items:.

Now that your layout is established, you can return a more complex view for your cells. Open BooksAdapter. But what if your user wants to favorite a book by tapping on it? To allow this, set up an on-click listener for your GridView.

gridview android example abhiandroid

Open MainActivity. To toggle the star icon in your cell, add this line of code in getView in BooksAdapterright before you return the convertView :. This is because Android Activities are destroyed and then recreated when the screen rotates.

By default, the system uses the Bundle instance state to save information about each View object in your activity layout such as the text displayed in the TextView s of your GridView. When your activity instance is destroyed and recreated, the state of the layout is restored to its previous state with no code required by you.

This means that to make the selections behave correctly, you need to save the selection information yourself. Thankfully, Android Activities have two useful methods for this:. To remember the selected books, the app needs to save the selection information to a list, then use that list to select the books when the activity is recreated.

First, establish an identifying key for the list at the beginning of your class by adding the following line before onCreate in MainActivity. To restore the selections when the activity is recreated, add the following to MainActivity. Luckily, the great folks at Google have provided a few properties that allow you to tweak how each cell is rendered.

You can modify columnWidthhorizontalSpacing and verticalSpacing with a dimension value such as These properties can be set programmatically or from the XML layout files. To find properties to set, type gridView. Alternatively, take a look at the GridView documentation for a list of available methods, some of which set these properties. The properties are fairly self-explanatory, so I definitely encourage you to experiment with different values. To specify the number of columns to render, provide an integer value for the property numColumns.Tuesday, 27 November In android GridView is a view group that display items in two dimensional scrolling grid rows and columnsthe grid items are not necessarily predetermined but they are automatically inserted to the layout using a ListAdapter.

Users can then select any grid item by clicking on it. GridView is widely used in android applications. An example of GridView is your default Gallery, where you have number of images displayed using grid. Adapter Is Used To Fill Data In Gridview: To fill the data in a GridView we simply use adapter and grid items are automatically inserted to a GridView using an Adapter which pulls the content from a source such as an arraylist, array or database.

From there you can drag and drop on virtual mobile screen to create it. Alternatively you can also XML code to create it. Even if the phone is in portrait mode or landscape mode it automatically fill the whole space. Attributes of GridView:. Lets see different attributes of GridView which will be used while designing a custom grid view:. Below is the id attribute example code for Gridview:.

gridview android example abhiandroid

Below is the numColumns example code where we define 4 columns to show in the screen. This could be in pixel px ,density pixel dp or scale independent pixel sp. Below is the horizontalSpacing example code with explanation included where horizontal spacing between grid items is 50 dp. This should be in px, dp or sp. Below is the verticalSpacing example code with explanation included, where vertical spacing between grid items is 50dp. This could be in px, dp or sp.

Below is the columnWidth example code. Important Note: In the below code we also used listSelector property which define color for selected item. Also to see the output of columnWidth using listSelector we need to use Adapter which is our next topic. The below code is not sufficient to show you the output. An adapter is a bridge between UI component and data source that helps us to fill data in UI component.


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