1 <declare-styleable name="MyTextView">
2     <attr name="textColor" format="color"/>
3     <attr name="textSize" format="dimension"/>
4     <attr name="text" format="string"/>
5     <attr name="background" format="reference|color"/>
6 </declare-styleable>

 1 public MyTextView(Context context, AttributeSet attrs) {
 2         super(context, attrs);
 3         mTextPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG);
 4         TypedArray typeArray = context
 5                 .obtainStyledAttributes(attrs, R.styleable.MyTextView);
 6
 7         mTextColor = typeArray.getColor(R.styleable.MyTextView_textColor, Color.BLACK);
 8         mTextSize = typeArray.getDimension(R.styleable.MyTextView_textSize, 14);
 9         mText = typeArray.getString(R.styleable.MyTextView_text);
10
11         mTextBackground = typeArray.getColor(R.styleable.MyTextView_background, Color.WHITE);
12
13         mTextPaint.setColor(mTextColor);
14         mTextPaint.setTextSize(mTextSize);
15         mTextPaint.setTypeface(Typeface.DEFAULT);
16
17         typeArray.recycle();
18     }

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3     xmlns:mytextview = "http://schemas.android.com/apk/res/com.example.viewdemo"
 4     android:layout_width="match_parent"
 5     android:layout_height="match_parent"
 6     android:orientation="vertical" >
 7
 8     <com.example.view.textview.MyTextView
 9         android:layout_width="500dp"
10         android:layout_height="wrap_content"
11         mytextview:text="my name is text view , i am a text view"
12         mytextview:textSize="20sp"
13         mytextview:textColor="#000000"
14         mytextview:background="#ffffff"
15         />
16
17 </LinearLayout>