Get height and width of a layout programmatically

Question

I have designed an layout in which LinearLayout has 2 children LinearLayout and FrameLayout and in each child I put different views.

Answer 1

try with this metods:

int width = mView.getMeasuredWidth();

int height = mView.getMeasuredHeight();

Or

int width = mTextView.getMeasuredWidth();

int height = mTextView.getMeasuredHeight();

Answer 2

I had same issue but didn't want to draw on screen before measuring so I used this method of measuring the view before trying to get the height and width.

Example of use:

layoutView(view);
int height = view.getHeight();

//...

void layoutView(View view) {
    view.setDrawingCacheEnabled(true);
    int wrapContentSpec = 
        MeasureSpec.makeMeasureSpec(MeasureSpec.UNSPECIFIED, MeasureSpec.UNSPECIFIED);
    view.measure(wrapContentSpec, wrapContentSpec);
    view.layout(0, 0, view.getMeasuredWidth(), view.getMeasuredHeight());
}

Answer 3

try something like this code from this link

ViewTreeObserver viewTreeObserver = view.getViewTreeObserver();
if (viewTreeObserver.isAlive()) {
 viewTreeObserver.addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
  view.getViewTreeObserver().removeGlobalOnLayoutListener(this);
  viewWidth = view.getWidth();
  viewHeight = view.getHeight();
}
 });
}

hope this helps.

Answer 4

you can use coroutines as well, like this one :

CoroutineScope(Dispatchers.Main).launch {
        delay(10)
        val width = view.width()
        val height= view.height()
        // do your job ....
    }

Answer 5

As CapDroid say, you are trying to get the size before the view drawn, another possible solution could be to do a Post with a runnable on the View:

mView.post(new Runnable() {
        @Override
        public void run() {
            int width = mView.getWidth();
            int height = mView.getHeight();
        }
}

Answer 6

I used DisplayMetrics to get the screen size and then i can assign the width/height to an element in %age

It will be like this

DisplayMetrics dmetrics = new DisplayMetrics();
int widthPixels=dmetrics.widthPixels;
int heightPixels=dmetrics.heightPixels;       

//setting the height of the button 
button_nextPuzzle.setMinHeight((int) ((heightPixels/3)*.30));

Worked for me very well!!!