With plenty of screen real estate, the drawer should stay open all the time; the Material Design specs even recommend this behavior. Sample from Material Design. Basically, we will have a master fragment that will be used for the drawer view and a detail fragment for the main view. Get the source code for this project here. The end result. We are going to keep things real simple so the UI is a bit ugly. In this example, I have a simple list with three items, but feel free to use a RecyclerView or ScrollView here depending on your needs.
For this simple example, we are going to update the detail text color based on the selected master item. This will be a simple way to observe sending information from MasterFragment to DetailFragment. If you have used navigation drawers before or you read through the CodePath example, some of this should look familiar.
We need to set a DrawerLayout as our root view. Now here is the cool part. The important parts of using fragments are creating our master and detail fragments and using fragment transactions to insert them into their respective containers. We can use fragment callbacks to pass the item ID up to the activity. We can then add a public method on DetailFragment for the activity to pass the ID to the detail fragment.
This is a good initial guess at tablet size. Again, we still have two containers for master and detail fragments. We also need the Toolbar. This is really up to you. You may decide to just wrap the width of the master container and give all the remaining width to the detail. Your choice. Now we need to head back to our Activity and make sure it can handle this new layout. We need to make just a few changes:. All we need to do is null check drawerLayout before setting up drawer view and menu icon before we try to close the drawer.
At this point, we are almost wrapped up.Posted by: admin December 2, Leave a comment. In one of my fragments toolbar has custom view. In other fragments Toolbar should show title. How get Toolbar instance for customizing from fragments? I can get ActionBar with getActivity.
Now I add more one to onCreateView and it works fine. You need to cast your activity from getActivity to AppCompatActivity first. In case fragments should have custom view of ToolBar you can implement ToolBar for each fragment separately. Maybe you have to try getActivity. February 20, Android Leave a comment. Questions: I want to intent to another fragment but I got an error java.
ClassCastException: android. ContextThemeWrapper cannot be cast to androidx. How to sol Questions: I use Visual Studio for mobile application development.
I use Android Emulator for a long time but I have some issues with it only during the last month.
I have created some virtual de Questions: I am trying to get phone authorization to work but it never seems to send a code to my phone. I am running the test on an emulator but expecting the code on my physical device. Add menu. How to get Toolbar from fragment? From your Fragment: get Toolbar from fragment?A standard toolbar for use within application content. A Toolbar is a generalization of action bars for use within application layouts.
While an action bar is traditionally part of an Activity's opaque window decor controlled by the framework, a Toolbar may be placed at any arbitrary level of nesting within a view hierarchy. An application may choose to designate a Toolbar as the action bar for an Activity using the setSupportActionBar method.
Toolbar supports a more focused feature set than ActionBar.
How to get Toolbar from fragment?
From start to end, a toolbar may contain a combination of the following optional elements: A navigation button. This may be an Up arrow, navigation menu toggle, close, collapse, done or another glyph of the app's choosing. This button should always be used to access other navigational destinations within the container of the Toolbar and its signified content or otherwise leave the current context signified by the Toolbar.
The navigation button is vertically aligned within the Toolbar's minimum height, if set. A branded logo image. This may extend to the height of the bar and can be arbitrarily wide. A title and subtitle. The title should be a signpost for the Toolbar's current position in the navigation hierarchy and the content contained there. The subtitle, if present should indicate any extended information about the current content.
Using Fragments to Simplify the Android Navigation Drawer
If an app uses a logo image it should strongly consider omitting a title and subtitle. One or more custom views. The application may add arbitrary child views to the Toolbar. They will appear at this position within the layout. If a child view's Toolbar. An action menu. The menu of actions will pin to the end of the Toolbar offering a few frequent, important or typical actions along with an optional overflow menu for additional actions. Action buttons are vertically aligned within the Toolbar's minimum height, if set.
In modern Android UIs developers should lean more on a visually distinct color scheme for toolbars than on their application icon. The use of application icon plus title as a standard layout is discouraged on API 21 devices and newer. Interface responsible for receiving menu item click events if the items themselves do not have individual item click listeners.
Gets the content inset that will be used on the ending side of the bar in the current toolbar configuration. Gets the content inset that will be used on the left side of the bar in the current toolbar configuration. Gets the content inset that will be used on the right side of the bar in the current toolbar configuration.
Gets the content inset that will be used on the starting side of the bar in the current toolbar configuration. Sets the text color, size, style, hint color, and highlight color from the specified TextAppearance resource. Collapse a currently expanded action view.
If this Toolbar does not have an expanded action view this method has no effect. An action view may be expanded either directly from the MenuItem it belongs to or by user action. Gets the ending content inset for this toolbar. The content inset affects the valid area for Toolbar content other than the navigation button and menu.
Insets define the minimum margin for these components and can be used to effectively align Toolbar content along well-known gridlines.In this quick and easy tutorial we will see how to set up a Navigation Drawer with Toolbar. So lets see how to setup one.
It is hidden most of the time, but is revealed when the user swipes a finger from the left edge or right edge of the screen or, while at the top level of the app, the user touches the app icon in the action bar. This panel can either be on Left edge or Right edge or even both edges.
This can be done by setting the layout gravity as start or end. A Toolbar is a generalisation of Action bars. Its more flexible and customisable compared to Action Bars and can be placed anywhere in the view hierarchy. Toolbar is a widely used widget found in a variety of apps. So if your app is supporting Android 5 and above, there is no need to add the appcompat v7 dependency stated below. We will need to create a custom theme since we need one without the Android native Action bar.
We will be using Toolbar as the Action bar. Failing to add this theme might result in errors or messed up UI. Open your styles. Make sure to set this as your application theme in Manifest file or as the theme of Activity which contains Navigation Drawer and Toolbar. Now lets create our layout which contains the drawer and toolbar. Lets create our Java class titled MainActivity. Add your Listview related code.
Better use a RecyclerView if you have too many items in the list.
Check out this tutorial for setting up RecyclerView. Wanna start your blog or site in 5 mins? Check out Official WordPress recommended web hosting Bluehost. Tags: android navigation drawer toolbar. October 29, January 21, March 16, Este tipo de cuestiones son las que realmente molestan a cualquier programador. Echa un vistazo gadgetsaint.
Compruebe esto hacia fuera gadgetsaint. Save my name, email, and website in this browser for the next time I comment. Notify me of follow-up comments by email. Notify me of new posts by email. Skip to content Android 2. You may even use a LinearLayout. DrawerLayout drawerLayout .Fragment life cycle is closely related to the life cycle of its host activity which means when the activity is paused, all the fragments available in the activity will also be stopped.
Prior to fragment introduction, we had a limitation because we can show only a single activity on the screen at one given point in time. So we were not able to divide device screen and control different parts separately. But with the introduction of fragment we got more flexibility and removed the limitation of having a single activity on the screen at a time. Now we can have a single activity but each activity can comprise of multiple fragments which will have their own layout, events and complete life cycle.
Following is a typical example of how two UI modules defined by fragments can be combined into one activity for a tablet design, but separated for a handset design. The application can embed two fragments in Activity A, when running on a tablet-sized device.
However, on a handset-sized screen, there's not enough room for both fragments, so Activity A includes only the fragment for the list of articles, and when the user selects an article, it starts Activity B, which includes the second fragment to read the article. Android fragments have their own life cycle very similar to an android activity. This section briefs different stages of its life cycle.
The fragment and the activity is not fully initialized. Typically you get in this method a reference to the activity which uses the fragment for further initialization work. You should initialize essential components of the fragment that you want to retain when the fragment is paused or stopped, then resumed. To draw a UI for your fragment, you must return a View component from this method that is the root of your fragment's layout.
You can return null if the fragment does not provide a UI. Activity and fragment instance have been created as well as the view hierarchy of the activity. At this point, view can be accessed with the findViewById method.
In this method you can instantiate objects which require a Context object. This is usually where you should commit any changes that should be persisted beyond the current user session. First of all decide how many fragments you want to use in an activity. For example let's we want to use two fragments to handle landscape and portrait modes of the device. Next based on number of fragments, create classes which will extend the Fragment class.
The Fragment class has above mentioned callback functions. You can override any of the functions based on your requirements. Corresponding to each fragment, you will need to create layout files in XML file. These files will have layout for the defined fragments. Finally modify activity file to define the actual logic of replacing fragments based on your requirement. Android - Fragments Advertisements.
Previous Page. Next Page. Previous Page Print Page.Fragments basically are subactivities. Today we want to see how to pass data from an activity to a fragment. Android Activities are components and normally need to be registered as an application component.
You can see that one action and category are specified as intent filters. The category makes our MainActivity as launcher activity. Launcher activities get executed first when th android app is run. AndroidStudio will generate for you a project with default configurations via a set of files and directories. User interfaces are typically created in android using XML layouts as opposed by direct java coding. Around 5 years ago, my life changed when I got enrolled in Software Engineering at the undergraduate level rather than Law.
Since then I have fallen in love with coding. When not coding am probably meditating or going for long Savanna walks. Subscribe to my YouTube Channel below.
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Will get inflated into MainActivity Layout. Typically contains appbarlayout with toolbar. Also has a floatingactionbutton.Toolbar's appearance and behavior can be more easily customized than the ActionBar. Toolbar works well with apps targeted to API 21 and above. In AppCompat, Toolbar is implemented in the androidx.
How to get Toolbar from fragment?
Toolbar class. The Toolbar is a generalization of the ActionBar system. The key differences that distinguish the Toolbar from the ActionBar include:. Note that the ActionBar continues to work and if all you need is a static bar at the top that can host icons and a back button, then you can safely continue to use ActionBar. To use Toolbar as an ActionBar, first ensure the AndroidX support library is added to your application build.
Second, let's disable the theme-provided ActionBar. The easiest way is to have your theme extend from Theme. Now you need to add a Toolbar to your Activity layout file. One of the biggest advantages of using the Toolbar widget is that you can place the view anywhere within your layout. Below we place the toolbar at the top of a LinearLayout like the standard ActionBar:. As Toolbar is just a ViewGroup and can be styled and positioned like any other view.
Note that this means if you are in a RelativeLayoutyou need to ensure that all other views are positioned below the toolbar explicitly. The toolbar is not given any special treatment as a view. Note: When using the support library, make sure that you are importing android.
Toolbar and not android. For more details about action items in the Toolbar including how to setup click handling, refer to our ActionBar guide. The above code results in the toolbar fully replacing the ActionBar at the top:.
From this point on, all menu items are displayed in your Toolbar, populated via the standard options menu callbacks. In many apps, the same toolbar can be used across multiple activities or in alternative layout resources for the same activity. In order to easily reuse the toolbar, we can leverage the layout include tag as follows.
This allows us to create a consistent navigation experience across activities or configuration changes. The Toolbar can be customized in many ways leveraging various style properties including android:themeapp:titleTextAppearanceapp:popupTheme.2 different ways to inflate menu for Toolbar inside Activity and Fragment
Each of these can be mapped to a style. Start with:.