Android: How to Programmatically Set the Size of a Layout

Android: How to Programmatically set the size of a Layout

Java

This should work:

// Gets linearlayout
LinearLayout layout = findViewById(R.id.numberPadLayout);
// Gets the layout params that will allow you to resize the layout
LayoutParams params = layout.getLayoutParams();
// Changes the height and width to the specified *pixels*
params.height = 100;
params.width = 100;
layout.setLayoutParams(params);

If you want to convert dip to pixels, use this:

int height = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, <HEIGHT>, getResources().getDisplayMetrics());

Kotlin

How to programmatically set the width of the LinearLayout?

To set the LinearLayout or TextView width to 1/3 of the device screen:

first of all get the device screen width:

Display display = getWindowManager().getDefaultDisplay();
Point size = new Point();
try {
    display.getRealSize(size);
} catch (NoSuchMethodError err) {
    display.getSize(size);
}
int width = size.x;
int height = size.y;

now just create a LayoutParams and set it to the Text:

LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams((int)(width/3),
                    LinearLayout.LayoutParams.WRAP_CONTENT); // or set height to any fixed value you want

your_layout.setLayoutParams(lp);
// OR
your_textView.setLayoutParams(lp);

Change LinearLayout height to 0 programmatically

Try this.....

 LinearLayout layout = (LinearLayout)findViewById(R.id.yourLayoutId);

 LinearLayout.LayoutParams lp = (LayoutParams) layout.getLayoutParams();
 lp.height = 0;

Adjusting height of linear layout programmatically

This should work

LinearLayout lLayout = new LineaLayout(context);
LayoutParams params = lLayout.getLayoutParams();

params.height = 200;
params.width = 200;
lLayout.setLayoutParams(params);

see the accepted answer at Android: How to Programmatically set the size of a Layout

How can I set layout height and width programmatically which support all screen size in Android?

You can get the device density like this:

float scaledDensity = getResources().getDisplayMetrics().scaledDensity;
LinearLayout.LayoutParams params=new LinearLayout.LayoutParams(20 * scaledDensity,20 * scaledDensity);
        param1.weight=1;

How to set specific width/height for view programmatically?

You can do like this. Width/Height should be a pixel value.

 ViewGroup.LayoutParams layoutParams = new ViewGroup.LayoutParams(
  getResources().getDimensionPixelSize(R.dimen.width),100);

 textView.setLayoutParams(layoutParams);

You can Read from dimens resource or hardcode a pixel value.

How to resize a custom view programmatically?

this.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT, theSizeIWant));

Problem solved!

NOTE: Be sure to use the parent Layout's LayoutParams. Mine is LinearLayout.LayoutParams!

Android set height and width of Custom view programmatically

If you know the exact size of the view, just use setLayoutParams():

graphView.setLayoutParams(new LayoutParams(width, height));

Or in Kotlin:

graphView.layoutParams = LayoutParams(width, height)

However, if you need a more flexible approach you can override onMeasure() to measure the view more precisely depending on the space available and layout constraints (wrap_content, match_parent, or a fixed size). You can find more details about onMeasure() in the android docs.

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