I have used both Linear and Relative layout . But still don't know excatly when to use which .
How to decide which one to use ? Explain with some example .
It's a personal preference for most of the cases.
You have to decide according to your necessity. You should however try to stick to RelativeLayout, if you are using multiple nested LinearLayouts since those can drop your performance noticeably.
See this tutorial. You'll have a good idea about different layouts. Hope this helps.. :)
This all depend on personal preferences and Experience matters a lot .
Personally i use combination of Linear layout in most of cases but sometimes FlowLayout and Relative Layout etc are used.
Linear Layout (vertical / Horizontal ) are used to create basic layout. Following properties help create view better and esthetic .
android:Layout_weight
Relative Layout is used to create overlay effect and also used to relate position of different Views according to position . Following properties help create view better and esthetic .
android:layout_margin
android:paddingLeft
android:paddingRight
android:paddingTop
android:paddingBottom
Frame Layout used to create Overlay layout like on option pressed etc.
also Frame Layout Can used to create overlay ads .
Grid Layout is used to create grid , you may have see gallery pics which are basically implemented in grid layout.
Example of Grid is Gallery Photos
Related
I want to create jugnoon like mapview and below that viewpager as shown in image for sample.
Any hint or idea or sample would be helpful. I am not able to understand where to start. I tried frame layout, relative layout but it all failed.enter image description here
Your question is not entirely clear to me but I suggest using a linear layout and assigning weight sum to it and provide weight for individual layouts according to the weight sum of the linear layout. A rough example would be assigning a weight sum of 10 to the linear layout and set weight of your map layout to 7 and 3 for the tab layout and whatever comes underneath it. Hope this helps.
Suggest me on this
I have to use some header and body part in android screen design, Can i use plain Linear layout for screen design or can i use relative layout or else both layout combined together.For the header bar im using a gradient image and application runs both in vertical and horizontal orientation.
As of now im using two main linear layouts for the first one im using a height of 40 dp and for the second i just used 0dip is this a correct way of approach or i have change anything.
Don't mix concept of RelativeLayout and LinearLayout. RelativeLayout is preferred because it reduces extra lines as compared to LinearLayout. In RelativeLayout views are placed relative to each other i.e. left, right, top and bottom unlike LinearLayout where you can't place view in respect of some other view. Both have its own advantages. As Weight concept is not supported by RelativeLayout but LinearLayout.
Depending on the complexity of layout both are chosen. One thing to avoid is un-necessary nesting of layouts which reduces performance. I would recommend read concepts of RelativeLayout, LinearLayout and weight first then you will be able to judge which layout to use on your own. Till then use RelativeLayout as it requires minimum number of lines.
You can use Linear-Linear, Linear-Relative or Relative-Relative. Anything you want.
Your question is hard to understand. From what i get, i think your approach is fine. You should let the Screen design (second layout) use "match_parent". It will take up remaining part. For your header layout using "40dp" is fine. I made app with Header, and i used this approach.
If in Header, you are adding images as well as TextView, it is advisable to use RelativeLayout. In the rest part, use however you need it.
I have some buttons, textboxes etc. in my android application, but when i drag them with my mouse in the xml file, their place doesn't change, or changes but they are not placed where i exactly wanted. How can i adjust their positions in the screen?
Thanks
Unfortunatly there is no such thing as absolute positionning in android ( RIP AbsoluteLayout deprecated since years.)
instead you have to position views according to their parents and according to other views in the same parent.
first you have to define wich parent you need ( if you want some viens in a single line go for a LinearLayout. a more custom layout: use a RelativeLayout ...)
then you can drag and drop views inside, but they will always snap a position relative to their parent and/or relative to the other views.
you can of course play with margins.
A list of layout type with some advanced techniques can be found on this page
Hope that helps.
You RelativeLayout as a group layout for your layout so positioning can somewhat easy using mouse.
Best is to arrange them from the xml code. Just Learn about using the Relative layout, LinearLayout and TableLayout
Learn how the XML works. For a LinearLayout, the items come in the order listed. For a RelativeLayout, the items are related by the values of their layout_XXX properties. Then you don't have to worry about the WYSIWYG tool not working.
FYI, the tool bundled with eclipse is extremely buggy. Don't count on whats on there being what's on your phone for anything non-trivial.
Like the others wrote it is easier to edit layout using xml editor. You can read more here http://developer.android.com/guide/topics/ui/declaring-layout.html.
I'd like to make a layout similar to the one used in the current version of Google Plus:
I don't know which layout I must use because :
- I can't use a GridView because it doesn't support spanning row.
- I can't use a GridLayout nor LinearLayout because the number of elements to show is dynamic
- I can't use a ScrollView because I want an AdapterView to re-use child elements
- I can use a ListView with two differents cells types but I can't use the built-in OnItemClickListener.
Do you have better ideas than me?
Thank you very much :)
this post suggested that it uses StaggeredGridView . I personally haven't tried it.
You can very well use RelativeLayout for this.
With a single Relative Layout you should be able to create exactly same layout.
Additionally, your content can be dynamically added to Relative Layout pretty easily (by setting proper LayoutParams to the content to be added).
Hello! I have just started playing with android layouts and i wonder if there is a general way of applying basic layout so that it will adjust itself to multiple screens and automatically to landscape view. For example:
In the picture above, I have added some buttons. Now what i want to learn is which layout or options(like weight,gravity,alignment) to b used so that they remain the same in Every view & on every screen. Some says to use linear layout within linear and then add weight and alignment. They said that by doing this, you have flexibility to remove any button and yet no other button looses its place(unlike in relative layout). Can there be better way that will have same layout on all screens and yet flexible??
You can use multiple linear layouts if you want to create a FORM.
otherwise Absolute layout is also good but not much preferable.
Relative layout needs practice, as you have to set widgets with respect to other.
multiple linear layouts may be useful.
RelativeLayout is very easy to use and if you learn to align the widgets in it, the layout will look the same on every screen BUT it's good for a layout that is very simple (few widgets on layout) or a layout that you know that will never change because changing on RelativeLayout is so hard and the best way is editing the XML not working on DesignView.
LinearLayout is not flexible like RelativeLayout but making change in it is so simple and other widgets will not lose their positions.
After all if you want to design layout for multiple screen size I recommend to use Fragments.