naxfake.blogg.se

This example uses a LinearLayout object as the root view and creates an EditText and Button as a child view.Below is the example screen in the android emulator.Int widthInPx = (int)TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 200, r.getDisplayMetrics()) ĮtWidth(widthInPx) 2. So need to translate them use the below source code. But in java code, the input parameter for the setWidth() or setHeight() method is pixel. If you define the width or height in the layout XML file then the unit is dp by default.If you want to set the child component’s width or height, you need to translate the size unit from dp to pixel, because the android screen uses dp as the distance unit to adapt different device screen sizes.

Add child view components to the layout root view object use the below code.Create child components as you need such as Button, EditText, TextView, etc.Create a Layout component and use it as the root view use the below code.Because we do not use the layout XML file, so remove the below code in the android activity.This template will only create the main activity java file and a layout XML file. Create an android project, select the Empty Activity template.Use Java Code To Manipulate UI Components Steps.