LineEditText.java

package com.quark.ui.widget;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.util.AttributeSet;
import android.widget.EditText;
  
public class LineEditText extends EditText {  
  
    private Paint mPaint;  
    /** 
     * @param context 
     * @param attrs 
     */  
    public LineEditText(Context context, AttributeSet attrs) {  
        super(context, attrs);  
        // TODO Auto-generated constructor stub  
        mPaint = new Paint();  
          
        mPaint.setStyle(Paint.Style.STROKE);  
        mPaint.setColor(Color.GRAY);  
    }  
      
    @Override  
    public void onDraw(Canvas canvas)  
    {  
        super.onDraw(canvas);  
          
//      画底线  
        canvas.drawLine(0,this.getHeight()-1,  this.getWidth()-1, this.getHeight()-1, mPaint);  
    }  
}