Display images and text on RadioButton

 

It is easy to use XML files, but sometimes it must be implemented dynamically using java code. This is complicated. This requires inheriting RadioButton and overwriting the onDraw method.

 

The image in the Code is a Bitmap object.

 

@ Override

Protected void onDraw (Canvas canvas ){

Super. onDraw (canvas );

 

If (image! = Null ){

Paint pt = new Paint ();

Pt. setARGB );

// Eliminate the Sawtooth

Pt. setAntiAlias (true );

// Center the display image

Int imageX = (int) (this. getWidth ()-image. getWidth ()/2;

 

Canvas. drawBitmap (image, imageX, 5, pt );

Pt. setARGB (255,255,255,255 );

// Center the display string

Int strX = (int) (this. getWidth ()-name. getBytes (). length * 5.5)/2;

Canvas. drawText (name, strX, (image. getHeight () + 15), pt );

}

 

}

 

From the wxg630815 Column