Why LayoutInflater is used in Android?

Why We Use inflate in Android?

“Inflating” a view means taking the layout XML and parsing it to create the view and viewgroup objects from the elements and their attributes specified within, and then adding the hierarchy of those views and viewgroups to the parent ViewGroup.

What is inflate method in Android?

inflate(XmlPullParser parser, ViewGroup root) Inflate a new view hierarchy from the specified xml node. View. inflate(XmlPullParser parser, ViewGroup root, boolean attachToRoot) Inflate a new view hierarchy from the specified XML node.

How do I get LayoutInflater on Android?

There is a way to get layoutInflater: LayoutInflater inflater = (LayoutInflater) context.

How do I use layout Inflater?

1. attachToRoot Set to True

  1. <Button xmlns_android=”http://schemas.android.com/apk/res/android” android_layout_width=”match_parent” android_layout_height=”wrap_content” android_text=”@string/action_attach_to_root_true” …
  2. inflater. inflate(R. layout. …
  3. Button btnAttachToRootFalse = (Button) inflater. inflate(R. layout.

What is ViewGroup?

A ViewGroup is a special view that can contain other views. The ViewGroup is the base class for Layouts in android, like LinearLayout , RelativeLayout , FrameLayout etc. In other words, ViewGroup is generally used to define the layout in which views(widgets) will be set/arranged/listed on the android screen.

What is a custom view in Android?

Custom Views is just a way to make an android developer a painter. When you need to create some custom and reuse the views when it is not provided by the Android Ecosystem. Custom Views can be used as widgets like TextView, EditText etc.

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How do I make my Android invisible?

setVisibility(View. GONE); you have the option to set the visibility to INVISIBLE and VISIBLE . Then you can play with the visibility as you like.

What is setContentView?

SetContentView is used to fill the window with the UI provided from layout file incase of setContentView(R. layout. somae_file). Here layoutfile is inflated to view and added to the Activity context(Window).

What is a view object in Android?

A View object is a component of the user interface (UI) like a button or a text box, and it’s also called a widget. A ViewGroup object is a layout, that is, a container of other ViewGroup objects (layouts) and View objects (widgets) Examples are EditText, Button, CheckBox, etc.

What is attach to root in Android?

attachToRoot: attaches the views to their parent (includes them in the parent hierarchy), so any touch event that the views recieve will also be transfered to parent view.