I would like the have only one ImageButton centered horizontally and vertically, but with a responsive width of a specific percentage, let's say 70%, and its height according to its width (so it won't be stretched)
I did so far the centering and I'm trying to achieve the responsive width.
This is the code
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#30CCA4">
<ImageButton
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight=".30"
android:orientation="vertical"
android:layout_gravity="center"
android:id="#+id/imageButton"
android:src="#drawable/splash_image"
android:background="#null" />
How can I do the responsive width?
Thanks
Try this.
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gravity="center">
<ImageButton
android:id="#+id/img_bt"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#FF4081" />
</LinearLayout>
Code :
ImageButton img_bt = (ImageButton) view.findViewById(R.id.img_bt);
Display display = getActivity().getWindowManager().getDefaultDisplay();
int width = display.getWidth();
int height = display.getHeight();
LinearLayout.LayoutParams parms = new LinearLayout.LayoutParams(width/10*7, width/10*7);
img_bt.setLayoutParams(parms);
Related
I have a simple linear layout and want to divide the screen into two equally sized parts.
In the upper one, I want to put a SurfaceView that has exactly the same size as its parent, i.e. half of the screen. Unfortunately, it always either takes all the screen or nothing (depending on the configuration).
Why is that and how can I change it?
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:weightSum="2"
android:orientation="vertical">
<LinearLayout android:id="#+id/layoutUpperDaw"
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="#192832">
<com.example.MySurvfaceView
android:id="#+id/id_mySurfaceView"
android:layout_width="match_parent"
android:layout_height="0pt"
android:layout_weight="1"
OR
android:layout_height="match_parent"
>
</com.example.MySurvfaceView>
</LinearLayout>
<LinearLayout android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="#193222">
...
</LinearLayout>
</LinearLayout>
When you provide weight you have to set height or weight to 0dp as below.
<LinearLayout android:id="#+id/layoutUpperDaw"
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:background="#192832">
and
<com.example.MySurvfaceView
android:id="#+id/id_mySurfaceView"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
>
Update: Answer above is correct about weight usage, make sure either hight or width is 0dp at all places where you used weight.
You don't really need nested LinearLayout. Following should work.
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<com.example.MySurvfaceView
android:id="#+id/id_mySurfaceView"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
>
</com.example.MySurvfaceView>
<LinearLayout android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_height="0dp"
android:layout_weight="1"
android:background="#193222">
</LinearLayout>
</LinearLayout>
Programmatically:
Find the parent layout.
GridLayout gridLayout =(GridLayout)findViewById(R.id.gridLayout);`
Get measured height and Width of parent.
int height = gridLayout.measuredHeight();
int width = gridLayout.measuredWidth();
3.Calculate child view height and width.For example two child each taking 50% of height in the parent but taking full width of parent:
int childHeight = height/2;
int childWidth = width;
4.Get instanceof LayoutParams depending on parent type.
GridLayout.LayoutParams params = new GridLayout.LayoutParams();
5. Set height and width on layout params.
params.width = childWidth;
params.height = childHeight;
6.Create child view and set Layout params.
ImageView imageview = new ImageView();
imageview.setLayoutParams(params);
7.Add child View to parent.
gridLayout.addView(ImageView);
I'm trying to get a ScrollView to take up as much screen space as it needs until it would start pushing items below (outside) it off the screen, then it needs to stop expanding and become scrolly.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
>
<ScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#ff0000"
>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="taking\nup\lots\nof\nlines\nto\nmake\nthe\nscrollview"s\ncontent\ntaller\nthan\nthe\nspace\navailable\nto\nit\nwhich\nshould\nmake\nthe\nscrollview\nstop\nabove\nthe\nbutton\nand\nbecome\nscrollable"
/>
<!--
android:text="just one line"
-->
</ScrollView>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Button"
/>
</LinearLayout>
As it is above the ScrollView fills the entire screen height and pushes the button off the bottom of the screen.
If I add android:layout_weight="1" to the ScrollView then it works for this case - the button is at the bottom and the ScrollView stops above it - but when the ScrollView doesn't have much content (replace the text with the one-liner) then the ScrollView doesn't shrink to fit around the content so is far too tall.
I've tried using RelativeLayout with no success - if the Button is android:layout_below the ScrollView then the ScrollView will push it off the bottom of the screen if it has a lot of content.
Here's what I want it to look like: in the first image the ScrollView has a lot of content and so expands to fill the available height but doesn't push the items below it (the button) offscreen, in the second image the ScrollView doesn't have much content so takes up just the height it needs allowing the items below it (the button) to move up the screen:
What you can do, is to correct the height in your code. It's a bit hacky and I would like to see another solution, but off the top of my head I do not know anything better.
What you would need is to add a OnGlobalLayoutListener and calculate within it the minimum of either the ScrollView height or the height of the container surrounding your ScrollView minus the height of your Button.
Then set the size with setLayoutParams() on your ScrollView.
And you have to remove the listener to avoid an endless loop :-)
final View scrollview = findViewById(R.id.scrollview);
final View container = findViewById(R.id.container);
final View button = findViewById(R.id.button);
scrollview.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
#Override
public void onGlobalLayout() {
int height = scrollview.getHeight();
int heightButton = button.getHeight();
int heightContainer = container.getHeight();
int min = Math.min(heightContainer - heightButton, height);
int width = scrollview.getWidth();
Log.v("test", "min: " + min);
scrollview.setLayoutParams(new RelativeLayout.LayoutParams(width, min));
// do not forget to remove the listener
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
scrollview.getViewTreeObserver().removeOnGlobalLayoutListener(this);
}
else {
scrollview.getViewTreeObserver().removeGlobalOnLayoutListener(this);
}
}
});
For this to work you have to use wrap_content as the height of the ScrollView in your layout file. And the outer container has to be a RelativeLayout so that the Buttonis rendered and has a non-zero height!
If you use paddings or margins you would have to consider those values in the computation.
Try this:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#+id/button"
android:background="#ff0000">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<TextView
android:padding="5dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="taking\nup\lots\nof\nlines\nto\nmake\nthe\nscrollview"s\ncontent\ntaller\nthan\nthe\nspace\navailable\nto\nit\nwhich\nshould\nmake\nthe\nscrollview\nstop\nabove\nthe\nbutton\nand\nbecome\nscrollable" />
<TextView
android:padding="5dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="taking\nup\lots\nof\nlines\nto\nmake\nthe\nscrollview"s\ncontent\ntaller\nthan\nthe\nspace\navailable\nto\nit\nwhich\nshould\nmake\nthe\nscrollview\nstop\nabove\nthe\nbutton\nand\nbecome\nscrollable" />
<TextView
android:padding="5dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="taking\nup\lots\nof\nlines\nto\nmake\nthe\nscrollview"s\ncontent\ntaller\nthan\nthe\nspace\navailable\nto\nit\nwhich\nshould\nmake\nthe\nscrollview\nstop\nabove\nthe\nbutton\nand\nbecome\nscrollable" />
<TextView
android:padding="5dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="taking\nup\lots\nof\nlines\nto\nmake\nthe\nscrollview"s\ncontent\ntaller\nthan\nthe\nspace\navailable\nto\nit\nwhich\nshould\nmake\nthe\nscrollview\nstop\nabove\nthe\nbutton\nand\nbecome\nscrollable" />
<TextView
android:padding="5dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="taking\nup\lots\nof\nlines\nto\nmake\nthe\nscrollview"s\ncontent\ntaller\nthan\nthe\nspace\navailable\nto\nit\nwhich\nshould\nmake\nthe\nscrollview\nstop\nabove\nthe\nbutton\nand\nbecome\nscrollable" />
<TextView
android:padding="5dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="taking\nup\lots\nof\nlines\nto\nmake\nthe\nscrollview"s\ncontent\ntaller\nthan\nthe\nspace\navailable\nto\nit\nwhich\nshould\nmake\nthe\nscrollview\nstop\nabove\nthe\nbutton\nand\nbecome\nscrollable" />
<TextView
android:padding="5dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="taking\nup\lots\nof\nlines\nto\nmake\nthe\nscrollview"s\ncontent\ntaller\nthan\nthe\nspace\navailable\nto\nit\nwhich\nshould\nmake\nthe\nscrollview\nstop\nabove\nthe\nbutton\nand\nbecome\nscrollable" />
<TextView
android:padding="5dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="taking\nup\lots\nof\nlines\nto\nmake\nthe\nscrollview"s\ncontent\ntaller\nthan\nthe\nspace\navailable\nto\nit\nwhich\nshould\nmake\nthe\nscrollview\nstop\nabove\nthe\nbutton\nand\nbecome\nscrollable" />
</LinearLayout>
</ScrollView>
<Button
android:id="#+id/button"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:text="Button" />
</RelativeLayout>
Just try adding fillViewport = "true" on your scroll view
I have tried to split the screen using xml..here is the code
Please try this xml..I need the same layout programatically.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="318dp"
android:layout_height="0dp"
android:layout_weight="1"
android:orientation="horizontal"
android:background="#android:color/holo_purple">
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="318dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:orientation="horizontal" android:background="#android:color/holo_purple">
</LinearLayout>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="318dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:orientation="horizontal"
android:background="#android:color/holo_blue_dark">
</LinearLayout>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="318dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:orientation="horizontal"
android:background="#android:color/darker_gray">
</LinearLayout>
</LinearLayout>
</LinearLayout>
But, I need to do programatically to split the screen. Can anyone provide me the solution?
By splitting the screen you mean dividing layouts width then you can try as below..
// gets the screen width
float screenWidth = getWindowManager()
.getDefaultDisplay().getWidth();
You will get screen width from above code..
and for screen height
// gets the screen height
float screenHeight = getWindowManager()
.getDefaultDisplay().getHeight();
then all you have to do is set the layout width using LayoutParams.
LinearLayout view = (LinearLayout) findViewById(R.id.ur_layout_id);
view.setLayoutParams(new LinearLayout.LayoutParams((int) screenWidth / 3,
(int) screenHeight , 1f));
you can set layoutwidth to divide screen in half by screenWidth / 2, in 3 parts by screenWidth / 3 and so on..
Hope this helps..
I am trying to put the ImageView on the bottom of the layout with following XML:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
tools:context=".MainActivity" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#EEEEEE"
android:gravity="center"
android:orientation="horizontal" >
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:src="#drawable/photo" />
</LinearLayout>
</LinearLayout>
I am following the instructions found here http://sandipchitale.blogspot.co.uk/2010/05/linearlayout-gravity-and-layoutgravity.html
Only difference is that I use ImageView instead of Button as here:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gravity="center"
android:orientation="horizontal" >
<Button
android:id="#+id/Button03"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:text="bottom" >
</Button>
</LinearLayout>
</LinearLayout>
Which puts the button on the expected place:
Unfortunately this isn't the case in my XML on the top of the post. The ImageView isn't placed on the bottom as the Button in reference XML is.
Any ideas why that happens ?
You should change a setting in ImageView itself, to be precise set android:scaleType="fitEnd" on your ImageView.
The other answers seem to be workarounds, including your own answer. This is not a problem with a layout, but with where inside the ImageView the image is loaded when the dimensions of the image and the screen aren't similar, (i.e. the width/height ratio is very different). By default it would load the image in the middle of the ImageView.
Try using RelativeLayout instead of LinearLayout and use parameter android:layout_alignParentBottom = "true".
EDIT: Try giving layout_height and layout_width as wrap_content for your LinearLayout that holds your ImageView.
Or it might be that the image you are using has extra space above and below it.
UPDATE:
The problem is with the size of the image. It is much larger than the screen size. I would suggest you to programmatically read the screen size of the device with below code:
DisplayMetrics displaymetrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(displaymetrics);
int height = displaymetrics.heightPixels;
int width = displaymetrics.widthPixels;
and set the height and width for imageView programmatically as below:
image_view.getLayoutParams().height = height - 50;
image_view.getLayoutParams().width = width - 50;
Try this inside relative layout
<ImageView
android:id="#+id/imageView9"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:adjustViewBounds="?attr/isLightTheme"
app:srcCompat="#drawable/client_app_footer" />
tested & working as expected
you did not include android:layout_gravity="bottom" line in your imageview.
I have resized photo size from width 2560 to width 270 and finally ImageView went to bottom.
I want to set up a text box, but I want it on multiple devices and to only take up 70% of the room on the screen. Can I do this?
hi try this way in xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal" android:layout_width="fill_parent"
android:layout_height="fill_parent" android:weightSum="10"
android:id="#+id/commonlayout" >
<TextView android:id="#+id/tvlogin"
android:layout_height="fill_parent"
android:text="My Text View in 60%"
android:layout_width="0dp"
android:layout_weight="6">
</TextView>
</LinearLayout>
use android:padding = "yourvaluespx";
PX is the value at yourvalues insert any number
Add a empty LinearLayout beside it, set both Layout Width to 0dp. Then set the weight of TextView (or EditText) and the LinearLayout to 0.7 and 0.3 respectively
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout android:layout_height="match_parent" android:id="#+id/linearLayout1" android:layout_weight="0.3" android:layout_width="0dp"></LinearLayout>
<TextView android:text="TextView" android:id="#+id/textView1" android:layout_height="wrap_content" android:layout_weight="0.7" android:layout_width="0dp"></TextView>
</LinearLayout>
please try this::
Display display = getWindowManager().getDefaultDisplay();
int width = display.getWidth();
int height = display.getHeight();
int int_var = (width * 60)/100;
and put int_var as width