A.raw B.values C.layout D.drawable
A.setTextColor(0xffff0000) B.setColor("0xffff0000") C.setTextColor("0xffff0000") D.setColor("red")
A.TextView tv=this.findViewById(R.id.bookName); B.TextView tv=(TextView)this.findViewById(R.id.code); C.TextView tv=(TextView)this.findViewById(R.id.bookName); D.TextView tv=(TextView)this.findViewById(R.string.bookName);