Edittext via Java

Question

Hello, I am developing a custom view and would like to know how it would be possible to add an Edittext via Java (without using xml, and without referencing the R class because it would be via java code, if possible). Thanks in advance.

Answer 1

Good morning, Michael!

You can create Views programmatically (using Java). For example

EditText etUserName = new EditText(getContext());

How are you creating a View custom, pass the context to the View by means of the method getContext(). If you created your View in own Activity, just passing the context itself

EditText etUserName = new EditText(this);

Don’t forget that you will need to create a layout father and then add his EditText

LinearLayout mLayout = /* Obtenha o layout */;
EditText etUserName = new EditText(context)
etUserName.setLayoutParams(new LinearLayout.LayoutParams(
                                     LinearLayout.LayoutParams.MATCH_PARENT,
                                     LinearLayout.LayoutParams.MATCH_PARENT));

myLayout.addView(etUserName);

Or in the case of a View personalized, give a extends in a View of layout and create the EditText as stated above

public class CustomView extends LinearLayout {
    public CustomView(Context context, AttributeSet attrs){
        super(context, attrs);

        setOrientation(LinearLayout.VERTICAL);
        setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));

        EditText etUserName = new EditText(context)
        addView(etUserName);
    }
}

However, I would advise creating your UI by way of a declaration xml, because you will have less work. I hope this helps!