[063]◀▶Android (I)-controls and layout [068] Android ListView & ExpandableListView

● · ● Directory:

Package: android. widget

Android UI controls

A ............ View class
A1 ............ TextView class
A2 ............ Button class
A3 ............ EditText class
A4 ............ RadioGroup class
A5 ............ RadioButton class
A6 ............ CheckBox class
A7 ............ ProgressBar class
A8 ............ ListView class
ExpandableListView class
A9 ............ Spinner class
Aa ............ SeekBar class
AB ............ RatingBar class
Ac ............ ImageView class
Ad ............ Toast class
AE ............ WebView class
Af ............ ToggleButton class
Ag ............ AutoCompleteTextView class
Ah ............ TimePicker class

Android layout controls

D1 ............ FrameLayout class
D1 certificate ............ ScrollView class
D1 certificate ............ HorizontalScrollView class
D2 ............ LinearLayout class
D3 ............ RelativeLayout class
D4 ............ GridView class
D6 ............ TableLayout class
D7 ............ TableRow class

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When there are too many threads, there are too many other threads
Please refer to the following link for more information: when there are too many threads, there are too many threads, too many threads.
When there are too many threads, there are too many other threads

● · ● View class:

1. The base class of other controls. This class has the method attributes inherited from its class.

2. View XML Attributes:

• Android: focusable: The control cannot obtain the focus by default. It can only be set to true. for example, EditText can get the focus by default. If you do not want to get the focus immediately after running the program, you can set this attribute to true for LinearLayout or RelativeLayout.
• Android: focusableInTouchMode: You can use touch to obtain focus (true ).