I have more than one XML-layout on my app and i am looking for a way to change the order in which my XML-layout displays when running my app
like which one of the layouts is displayed first ?
I think I didn't understand your question exactly but you can have as many as layouts you want. your activity shows the layout inside oncreate with setContentView(R.layout.yourLayout). If you want some particular parts in your layout, you can use fragments.
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I'm trying to make an app and I have made a blueprint for a specific activity, but I don't know how to implement it. The layout contains few buttons at the top of the activity, and each button features some information, which is displayed inside the view. The view which needs to be updated is present under the buttons. I don't want the activity to be changed, instead it should update the contents of the View, which is different for each category/button.
By doing some research I have realised that the "Tab Layout" can be used to achieve my requirements, but I don't want the tabs and I need some stylish buttons as a replacement.
I know I'm not the best at describing, so I have looked upon Dribble and found one design which is 100% similar to blueprint.
I want to achieve this using XML and Java using Android Studio! Every suggestion will be a great support foy my app.
Thanks a lot.
As far as I know, you could achieve that by using fragments (which is the same concept you would have used on TabLayout). I don't really know how much knowleadge you have on Android, but if you know what a Fragment is, it should be easy for you to recreate the idea.
You have 3 buttons for 3 different fragments, so you must design every fragment by separate and change it depending the button you click.
I want to include two layouts in one java class. How can I make it? I am using android studio.
I want to use both layouts. And I want to use two buttons in different layouts from one java file. I am using setContentView but I am using a button from different activity too. So when I try my app, it crashes. I am using findviewbyid from different layout and app crashes. How can I block it?
If you have two separate layout files, you can use include to add those the layout you are inflating in that activity.
<include layout="#layout/layout1"/>
<include layout="#layout/layout2"/>
Add these inside the layout of that activity and you can then use the different layout and the buttons in them from the same activity.
Although without much clarity on your specific use case, the help we can give is limited.
I have multiple fragments that share the same layout which is a RecyclerView inside a LinearLayout. In the past, I had files like:
fragment_one.xml
fragment_two.xml
fragment_three.xml
fragment_four.xml
Though, I am currently questioning if it is better, to use a single layout named, for example, fragment_generic. Is this a good or bad idea?
Thanks.
It actually depends on your use case. If you have like 5 fragments which have the same layout i.e a single recyclerview list. It is better to use a single layout for all the purposes. That makes the application really compact.
Later, when some changes come into place and you want to add item , let's suppose a fab icon, then create a new layout and use it for the changed fragment only.
So about your question, yes it would be the best idea to use the same layout for these 4 fragments.
I'm struggling to figure out how to create fragments that have their own layout files and take up the whole screen, as opposed to adding them to the activity's layout.
For instance, in my activity there is a button which should call a RecyclerView Fragment that takes up the whole screen, let the user pick an item, and then return to the activity. All the examples I'm finding though use transactions to add or replace on the activity's layout. How do I make fragments that are inflated from their own layout files and call them from the activity?
And sorry, I'm sure there's a better way to ask but I'm just going through docs and vids trying to learn.
A few line difference between Fragment and Activity:
An Activity is an application component that provides a screen, with which users can interact in order to do something. More details: http://developer.android.com/guide/components/activities.html
Whereas a Fragment represents a behavior or a portion of user interface in an Activity. http://developer.android.com/guide/components/fragments.html
Okay, So I just started Android development (I am average at VB.Net, so I understand basic code even if its not in VB). I've made a couple play around apps which used Text-To-Speech, Async Tasks and Reading/Writing files. However, I now wish to make a tabbed Android app.
I started the project in Eclipse Juno and filled in all the details. I then selected (For navigation) the Tabs/Swipe layout. I now have the default code for that layout type (Link to Tabs on developer.android.com - http://developer.android.com/design/building-blocks/tabs.html).
I understand mostly what the default code is doing. The only problem I am having, is determining the individual layout of my Tabs. I wish to have 2 Tabs, 1 in which the user selects an option, and the other, in which an image is shown depending on the selection in Tab 1.
So the question is: How do I create a .xml file in Layout to determine what is shown on the Fragment?
If you want to do this in XML the answer is simple, it can't be done just with XML, you must create a class that's implementing a ActionBar.TabListener.
Than you can override the onTabSelected method in which you can exchange the content.
A proper solution would be:
Use a LinearLayout as root container, and implement two Fragments for each of your Tabs (there you can design an individual XML-layout). Now you can add one fragment initially to the root-container and implement the exchange of the layouts inside the onTabSelected method and you are done.