
LEARN JAVA AND ANDROID
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Here, you will learn Android and Java.You will get free source code of many Apps from here.
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4y ago
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Contextual Action Bar (CAB)
Contextual Action Bar (CAB) has advanced user interface then Floating context menu because the long press gesture is now used to select multiple items and one function can be performed on them simultaneously. By enlarge, a Contextual action bar (CAB) is a temporary action bar that overlays the app’s action bar for the duration of a particular sub-task. When a user enables this mode by selecting an item, a contextual action bar appears at the top of the activity with menu items. When the user press the default back arrow (that appear ..read more
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4y ago
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ActionMode In Android
It is an android view class that represents a contextual mode of the user interface. Action modes can be used to provide alternative or temporary interaction modes and replace parts of the normal User Interface until it finish. When action mode is finish the temporary user interface is closed and we will get the pervious user interface. Examples of good action modes include text selection and contextual actions.
To use ActionMode we have to import following statement:-
import androidx.appcompat.view.ActionMode;
Nested classes:-
1.Interfac ..read more
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Context Menu In Android
When user press long click on the element(View) Context menu will appear. You can provide a context menu for any view, but they are most often used for items in a ListView, GridView, or other view collections in which the user can perform direct actions on each item. It offers actions that affect a specific item or context frame in the User Interface. Extension of Menu for context menus providing functionality to modify the header of the context menu. It do not support shortcuts and icons for the items in menu.
To use Context Menu ..read more
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Popup Menu in Android
When we simply click a view (suppose a textview) that contain popup menu then, a list ..read more
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Relative Topics
1. Option Menu
2. Option menu with Icon
Question : How to create Menus without creating menu.xml file?
Answer : If someone ask you can we create menus without creating menu.xml file? then, you should say yes we can create menu without creating menu.xml file. It is very easy to create . You just have to use add() function for creating menu items and addSubMenu() function for creating submenus with menu. For example, in case of Option menu, you can add menu and submenu as shown below:
public boolean onCreateOptionsMenu(Menu menu) {
&nb ..read more
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Index?
?How to add an Image Icon in App Bar?
?How to add Image Icon in Menu Items and Sub Menu Items?
How to add an Image Icon in App Bar?
You can create an Image icon menu with the help of "android:icon "attribute (in menu.xml file) .You also have to write app:showAsAction="ifRoom" with android:icon="@drawable/icon_name" inside <item> tag. Then, your icon will display on App bar. The Menu Item with the attribute of app:showAsAction="ifRoom" will be displayed on the App Bar if there is enough space for it. As soon as ..read more
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Option Menu:-
The options menu is the primary collection of menu items for an activity. It is basically used for those tasks that have global impact on that activity or app for example, "Setting","Search" etc. An ideal example of option menu is shown in action bar of WhatsApp application.
The appearance of the menu items displayed on the screen by the Option menu is totally depend upon the android version in which a developer is developing an application:-
1.Android 2.3.x and low ..read more
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4y ago
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Recycler View in Android Part 1- Introduction In Depth (onlyjavaforall.blogspot.com)
Recycler View in Android Part-2 Coding and Explanation
In the previous post we discuss about recycler view, its advantage, key classes i.e Adapter,View Holder and Layout manager etc.. Now, we will do coding for making a recycler view. Here, in this App I will make 2 xml and 2 java files that are:-
Xml Files
1. activity_main.xml :- To make Recycler View. Go to Design then Palette then from Common drag and drop Recycler View.
<androidx.recyclerview.widget.RecyclerView androi ..read more
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Recycler View in Android Introduction
Recycler View is advanced version of ListView. Recycler View was introduced in Marshmallow. It makes easy to efficiently display very large set of data. Even Recycler View is more flexible than Listview because list view present data in a single vertical list, but recycler view gives us more option(linear list, grid etc.) . Recycler View arrange these items with the help of layout manager class(discussed below).
As the name implies, Recycler View recycles individual ..read more
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4y ago
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ListView In Android using Array Adapter
Android ListView
ListView is a viewgroup(Build your First App Part 2 (onlyjavaforall.blogspot.com)) which groups several items from a data source like array or database and displays them in a scroll-able list. This is vertical scrollable list in which each view is present exact below the previous view (best example of this is your call logs, What's App).Listview is also the subclass of Adapter View. Data are bound with listview using an Adapter class, so, you will have your first glimpse of using adapte ..read more