android-Basic XML

android-Basic XML A basic introduction to an XML file
The base class for a class in layout is the view
For example, the definition of a button class, other similar
<button
1 Add an ID that automatically generates an ID in the R class (ID in the R Class) ID in the entire project unique
Android:id= "@+id/button1"

2 Layout width
Android:layout_width= "Wrap_content"
3 Layout Height
android:layout_height= "Wrap_content"
4 Layouts in three formats
Fill_conten filled
Match_content Matching
Wrap_content Normal

5 text messages
android:text= "button"/>

android-Basic XML