Android Application Development notes-single choice (RadioGroup, RadioButton)

Drag the icon on the panel to the interface. Then change the Properties, such,

 

 

The activity_main.xml list is as follows:

<RadioGroup

Android: id = "@ + id/radioGroup01"

Android: layout_width = "wrap_content"

Android: layout_height = "wrap_content">

 

<RadioButton

Android: id = "@ + id/radioBtn1"

Android: text = "@ string/sex1"

Android: textSize = "@ dimen/font_size24"

Android: textStyle = "bold"/>

 

<RadioButton

Android: id = "@ + id/radioBtn2"

Android: text = "@ string/sex2"

Android: textSize = "@ dimen/font_size24"

Android: textStyle = "bold"/>

 

</RadioGroup>

 

Then, we start encoding.

The related code is as follows:

RadioGroup radioGrou1 = (RadioGroup) findViewById (R. id. radioGroup01 );

RadioBtn1 = (RadioButton) findViewById (R. id. radioBtn1 );

RadioBtn2 = (RadioButton) findViewById (R. id. radioBtn2 );

RadioGrou1.setOnCheckedChangeListener (this );

 

The effect is as follows: