RadioButton and CheckBox from the ground up

RadioButton
 
Class Structure:

 
RadioButton is a good understanding of the single-choice button in Web development. It should be noted that we need to set the same name for the single-choice button in Web development. Android development here, we need to put two or more RadioButton in a RadioGroup.
 
Practical drills:
1. How to set the alignment of RadioButton:
Android: orientation has the following values: vertical and horizontal.
Vertical:

<RadioGroup android: id = "@ + id/raGroup01"
 
Android: layout_width = "fill_parent" android: layout_height = "wrap_content"
 
Android: orientation = "vertical">
 
<RadioButton android: id = "@ + id/raBtn01" android: text = "male"/>
 
<RadioButton android: id = "@ + id/raBtn02" android: text = ""/>
 
</RadioGroup>

Effect:

Level:

<RadioGroup android: id = "@ + id/raGroup02"
 
Android: layout_width = "fill_parent" android: layout_height = "wrap_content"
 
Android: orientation = "horizontal">
 
<RadioButton android: id = "@ + id/rautf" android: text = "UTF"/>
 
<RadioButton android: id = "@ + id/ragbk" android: text = "GBK"/>
 
</RadioGroup>

Effect:

2. How to Set RadioButton to select
Android: checkedButton = "@ + id/rautf"

<RadioGroup android: id = "@ + id/raGroup02"
 
Android: layout_width = "fill_parent" android: layout_height = "wrap_content"
 
Android: orientation = "horizontal"
 
Android: checkedButton = "@ + id/rautf">
 
<RadioButton android: id = "@ + id/rautf" android: text = "UTF"/>
 
<RadioButton android: id = "@ + id/ragbk" android: text = "GBK"/>
 
</RadioGroup>

 
Effect:
 
Add listener:

RadioButton01 = (RadioButton) findViewById (R. id. raBtn01 );
 

 
RadioButton01.setOnClickListener (new OnClickListener (){
 
Public void onClick (View v ){
 
String text = radioButton01.getText (). toString ();
 
System. out. println (text );
 

 
}
 
});
 

 
 
CheckBox
 
Class Structure:

 
Instance:

<TextView android: layout_width = "fill_parent"
 
Android: layout_height = "wrap_content" android: text = "hobbies"/>
 

 
<CheckBox android: id = "@ + id/chckBox01" android: text = "Sports"
 
Android: layout_width = "wrap_content" android: layout_height = "wrap_content"/>
 

 
<CheckBox android: id = "@ + id/chckBox02" android: text = "Literature"
 
Android: layout_width = "wrap_content" android: layout_height = "wrap_content"
 
Android: checked = "true"/>
 

Effect:
 
Add listener registration event for CheckBox

CheckBox01.setOnClickListener (new OnClickListener (){
 
 
 
@ Override
 
Public void onClick (View v ){
 
System. out. println (checkBox01.getText (). toString ());
 
 
 
}
 
});

From: jiahui524 Column