Android中自定义属性(attr.xml,TypedArray)的使用(2)

        float textSize = a.getDimension(R.styleable.MyView_textSize, 36);  
          
        mPaint.setTextSize(textSize);  
        mPaint.setColor(textColor);  
          
        a.recycle();  
    }
public MyView(Context context,AttributeSet attrs)
{
   super(context,attrs);
   mPaint = new Paint();
 
   TypedArray a = context.obtainStyledAttributes(attrs,
     R.styleable.MyView);
 
   int textColor = a.getColor(R.styleable.MyView_textColor,
     0XFFFFFFFF);
   float textSize = a.getDimension(R.styleable.MyView_textSize, 36);
 
   mPaint.setTextSize(textSize);
   mPaint.setColor(textColor);
 
   a.recycle();
}

MyView.java 全部代码如下:

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package com.android.tutor;  
import android.content.Context;  
import android.content.res.TypedArray;  
import android.graphics.Canvas;  
import android.graphics.Color;  
import android.graphics.Paint;  
import android.graphics.Rect;  
import android.graphics.Paint.Style;  
import android.util.AttributeSet;  
import android.view.View;  
public class MyView extends View {  
    private Paint mPaint;  
    private Context mContext;  
    private static final String mString = "Welcome to Mr Wei's blog";  
      
    public MyView(Context context) {  
        super(context);  
        mPaint = new Paint();  
    }  
    public MyView(Context context,AttributeSet attrs)  
    {  
        super(context,attrs);  
        mPaint = new Paint();  
          
        TypedArray a = context.obtainStyledAttributes(attrs,  
                R.styleable.MyView);