Getting Started with Android

TextView:

Android:id--The control's idandroid:layout_width--the width of the control android:layout_height--the height of the control android:text--text content android:textsize-- Text Size Android:textcolor--Text color Android:background--control background

EdittexT added:

Android:hint--Input display text Android:inputtype--Input text type

Wrap_content: Wrapping Century text content match_parent: The current control fills the property after the parent container--2.3api fill_parent: The current control fills the property before the parent class container--2.3API

ImageView
A control that displays a picture;
ImageView Properties:

1:android:src= "@drawable/ic_launcher"--->imageview content image 2:android:background= "@drawable/ic_launcher"---> ImageView background Image 3:ardroid:background= "#00ff00"  ---RGB color of >imageview

button and ImageButton features: 1. Shared features  can be used as a button to generate click events 2. Different points:  1>button has the Text property, ImageButton no  2 >imagebutton has src attribute, Buttong no
Note: Adding background and SRC to ImageButton adds a text image==== equivalent to text.

3. Create a noticeable click effect

button and ImageButton---listener events

Both button and ImageButton have an onclick event;
All controls have an OnClick event

A centralized method for monitoring event implementations: 1. Implementation of anonymous internal classes 2. Implementation of a standalone Class 3. Implement the interface in a way that implements

Getting Started with Android