Change linear layout top margin programmatically android

Question

i have two linear layouts in one frame layout.

Answer 1

use this

    layout = (LinearLayout) findViewById(R.id.layuout);
    LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
         LinearLayout.LayoutParams.FILL_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT);

    layoutParams.setMargins(30, 20, 30, 0);
layout.setLayoutParams(layoutParams );

Answer 2

This updates the top margin without the need to update the other margin values.

LinearLayout layout = (LinearLayout) findViewById(R.id.your_linear_layout);
LinearLayout.LayoutParams layoutParams = (LinearLayout.LayoutParams) layout.getLayoutParams();
layoutParams.topMargin = 200;
layout.setLayoutParams(layoutParams);

Answer 3

I have set up margins directly using below code (I tried using LinearLayout.LayoutParams but is was not working for me)

LinearLayout layout = (LinearLayout)findViewById(R.id.yourrelative_layout);
LayoutParams params = new LayoutParams(LayoutParams.MATCH_PARENT,LayoutParams.WRAP_CONTENT);
params.setMargins(3, 300, 3, 3); 
layout.setLayoutParams(params);

Only this here is to notice that LayoutParams should be imported for following package android.widget.RelativeLayout.LayoutParams unless you will hit error.

Answer 4

Use this method to set margin in dp

private void setMargins (View view, int left, int top, int right, int bottom) {
    if (view.getLayoutParams() instanceof ViewGroup.MarginLayoutParams) {
        ViewGroup.MarginLayoutParams p = (ViewGroup.MarginLayoutParams) view.getLayoutParams();

        final float scale = getBaseContext().getResources().getDisplayMetrics().density;
        // convert the DP into pixel
        int l =  (int)(left * scale + 0.5f);
        int r =  (int)(right * scale + 0.5f);
        int t =  (int)(top * scale + 0.5f);
        int b =  (int)(bottom * scale + 0.5f);

        p.setMargins(l, t, r, b);
        view.requestLayout();
    }
}

Call the method :

setMargins(linearLayout,0,0,5,0);

https://stackoverflow.com/a/50951911/8523391

Answer 5

Kotlin solution:

fun LinearLayout.setMargins(left: Int? = null, top: Int? = null, right: Int? = null, bottom: Int? = null) {
    val params: LinearLayout.LayoutParams = this.layoutParams as LinearLayout.LayoutParams

    val left = left?.let { it } ?: params.leftMargin
    val top = top?.let { it } ?: params.topMargin
    val right = right?.let { it } ?: params.rightMargin
    val bottom = bottom?.let { it } ?: params.bottomMargin

    params.setMargins(left, top, right, bottom)
    this.requestLayout()
}

then you just need to:

layoutbtnlinear_aboutme.setMargins(top = 10)

Answer 6

   layout = (LinearLayout) findViewById(R.id.layoutbtnlinear_aboutme);
   LinearLayout.LayoutParams params = (LinearLayout.LayoutParams)layout.getLayoutParams();
   params.setMargins(0, 50, 0, 0); 
   layout.setLayoutParams(params);