Android Runtime exception: Binary XML file Line #: Error inflating class

When customizing view, the long time finally got it done.

When inheriting view, you want to implement all of its constructors.

Such as:

1  Public classHongdianextendsView {2     floatX=40;3     floatY=50;4Paint p =NewPaint ();5The construct to implement6      PublicHongdian (Context context) {7         Super(context);8     }9The constructor to implementTen      PublicHongdian (Context context, @Nullable AttributeSet attrs) { One         Super(context, attrs); A     } -The constructor to implement -      PublicHongdian (context context, @Nullable AttributeSet attrs,intdefstyleattr) { the         Super(context, attrs, defstyleattr); -     } -The constructor to implement -      PublicHongdian (context context, @Nullable AttributeSet attrs,intDefstyleattr,intdefstyleres) { +         Super(context, Attrs, defstyleattr, defstyleres); -     } +  A @Override at     protected voidOnDraw (canvas canvas) { -         Super. OnDraw (canvas); - P.setcolor (color.black); -Canvas.drawcircle (x,y,15, p); -     } -  in @Override -      Public Booleanontouchevent (Motionevent event) { tox =event.getx (); +y =event.gety (); -          This. Invalidate (); the         return true; *     } $}

Android Runtime exception: Binary XML file Line #: Error inflating class