I have TextView which contain text "3D Android Graphics". I want to stretch the text so that it should always fit to screen width of any device provided. Means its text size should be changed according screen size and it should always occupied entire screen width. What should i use to get it done?
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I have a relative layout and in that i have 2 TextView. I want to adjust the size of both textview as per the user screen size, means if the user has screen small then both, textview will adjust there textsize into half of the screensize so that they both could fully fill screen by width.
Like this:
there are 2 Textview in images getting adjust as per screensize to fit the width.
I have created a layout that consists of imageviews and textviews. When I run the App every thing is fine on portrait screen orientation, but when I rotate the device to be in lanscape the imageviews shrinks (smaller in size).
I want to have (regardless of the screen orientation) the same size of views. I do not want the views to look smaller or bigger, I want the same sizes across different screen orientations.
Note: All dimesnions in the layout are in dp for width and height and the text font it is in sp.
Are your ImageView's being sized by attributes that align to edges, and then margin distances? This would distort your image as the parent boundaries change on device orientation.
Also, please provide your xml code, I don't have the reputation to ask as a comment.
Android tries to help you create responsive layouts (layouts that change the position and size of elements depending on how large the device screen is) through the use of things like layout_weights, settinging the width/height to match_parent, etc. Because of this, if you use these attributes and then rotate the phone screen, the size of your images is going to change because the system will think that you want to text/images to change size depending on orientation or device screen size.
Even if you mix layout weights and hard coded dp pixel sizes this will happen - what happens is that android measures all of your hard coded values and wrap content values, and then for any extra room on the screen, it expands the views that have weight, proportional to the weight number you give them. This is why you'll sometimes see people setting layout_height="0dp" and then setting a weight.
If you want an image that is always the same size, you can hard-code a certain number of dp pixels and remove any mention of layout_weight or match_parent. You can hard-code margins too. Depending on the size of the image, this will mean if you view the image on a phone that's too small, part off it will end up off-screen. There are a variety of ways to deal with this depending on what you want to happen. For example, if you want to elements on the screen to stay the same size but rearrange themselves depending on the device's screen size, you can make multiple layouts for different screen sizes and use resource folder qualifiers.
I am just using simple default layout and not adding any of these layout versions; l-dpi-Layout,m-dpi-layout etc.. then what exactly the resolution of my default layout is?
Let say i add an image and define its width-height as 20dp X 20dp. This image is looking perfect in layout Preview screen, but would it look same in 1440X2560 screen or 1920X1080 screen.
My concerns are:
what exactly is the resolution of default layout is?
How would android know that the 20 dpi i am defining fits best for 1080X1920 resolution and 27dpi fits best 1440X2560 screen, when i am writing 20dpi in my default layout which perfectly fits in layout preview screen
The system assumes a target device with a density of 160dpi. When you define the size of yout image with dp unit, Android adapts the size according with the resolution of the device. For example, if you put an image of 100dp x 100dp in a 160dpi device it will take 100 x100 pixels, but in a device with a 640dpi screen it will take 400 x 400 pixel
By default when you create a template app, your main content layout has two parameters values as layout_width=match_parent and layout_height=match_parent. match_parent value means whatever the screen dpi size the mobile has, it stretches all the way to its size of width and height respectively which is calculated by android automatically when it runs its layout pass to position views (including padding). So in this context the default resolution of your layout is what your mobile has minus the size of statusBar and navigationBar.
Android translates the DPI value you enter for your width and height into number of pixels internally to size your views. You can also put the size of your view into number of pixels but its not recommended.
I am a webdeveloper, and I am very lost in all the Android screen settings for aligning content. I've seen weight, gravity, scaletypes of the image etc. etc.)
I hope I can make my intentions clear, and that it's possible to fullfill them.
In this picture of a phone screen, I have 2 square pictures (the purple and the green one).
What I want to accomplish is that the width of the pictures always take up 50% of the screen width, and that it is centered (so the margin left and margin right is 25%).
So let's say you have a 600*800 screen, the width should be 300 pixels and the margin left and right would be 150 pixels (or better 25%). On a 768*1024 screen the width should be 384 pixels.
The height should follow that size (I've tried a lot of code, and the best result was that the width was sort of a pertentage, with 3 relative layouts in a lineair layout, but then only the width was correct, but the height wasn't)
Depending on your screen size it could be that the height of the two images together would be higher than the screen and a scrollbar would be neccessary)
Wrap them in PercentRelativeLayout and fix their width 50%. set their height equal to their width in Java when the view gets populated
My problem is very simple.
I have a button that have 100dp marginRight and 100dp marginTop in a xxhdpi density screen.
The problem is, when I change to another density screen or size, the button its not in position I want. It remains the 100dp margin top and right but I don’t won’t this.
I thought that if I use dp, when I change screen it’s was going to be in the position I want, calculate de position in smaller or bigger screens.
I hope you understand, I don’t want to create a layout for every density or size screen.
How can position a button that be in the same position in every screen?
on a different screen density that 100dp will change position.
what you can do is support multiple size and create different layout for each.
read http://developer.android.com/guide/practices/screens_support.html.
Using the new size qualifiers is a solution.