How do I set Layout and Text size to DP inside program?

Question

Basically I have this inside XML, but I have to recreate it inside a code. How do I do it?

<EditText          android:layout_width="140dp"         android:layout_height="20dp"         android:background="@drawable/input_bg01"         android:textSize="10dp"         android:gravity="center"         android:text="111-222-333     FOOO" /> 

I can use this to set text size, but what about the layout_width and height?

edTxt.setTextSize(TypedValue.COMPLEX_UNIT_DIP, 10); 

Is there a way to tell the code to use DP unit instead of pixel? Or a conversion function to convert DP into pixel?

Answer 1

You can use:

float pixels = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 10, getResources().getDisplayMetrics()); 

Now the value of pixels is equivalent to 10dp at the device's current screen density.

The TypedValue contains other similar methods that help in conversion.

Answer 2

Solved here.

Extract:

DisplayMetrics metrics = getContext().getResources().getDisplayMetrics(); float dp = 20f; float fpixels = metrics.density * dp; int pixels = (int) (fpixels + 0.5f);