How to make layout_height and layout_width with equal size

DisplayMetrics metrics = new DisplayMetrics(); getWindowManager().getDefaultDisplay().getMetrics(metrics); int width = metrics.widthPixels; 

now set the height dynamically using width.

this is the width of the device screen, as you are using layout_width = fill parent.

Have you tried explicitly setting the layout_height

eg

android:layout_height="320dip" 

If I set layout_height=wrap_content the width is twice bigger then the height...

I think that is because Whenever you set height/width to WRAP_CONTENT it makes the layout as much wide or tall that it can accomodate the Background of the layout, the child views of the layout so it will grow even bigger if you add some more child to the layout

And when set to FILL_PARENT then it takes the whole visible left screen area.

Solutions

1. Either you can give some fix size using dp to your layout, and then you will have to make different XML file for diff size of devices.
2. you can try and use the LinearLayout's weightSum and layout_weight attributes and manage the height and width of your layout by appllying proper weight. [I personally recommand to use weight]

From within your activity's onCreate(...) method, immediately after calling setContentView(...);

Use this:

ImageView image = (ImageView)findViewById(R.id.image); image.getLayoutParams().width = image.getHeight();