graphicview.java

基于ANdroid平台的高欢堂书籍的对应源代码 非常有用

package com.misoo.ppxx;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.view.View;

public class GraphicView extends View{
	 private Paint  paint= new Paint();
     
	 GraphicView(Context ctx) {
	   super(ctx);
	  }
	
	 @Override 
	 protected void onDraw(Canvas canvas) {
		    super.onDraw(canvas);
	        canvas.drawColor(Color.WHITE);
	        paint.setColor(Color.GRAY);
	       	paint.setStrokeWidth(3);
	       	int line_x = 10;
	       	int line_y = 50;
	       	canvas.drawLine(line_x, line_y, line_x+120, line_y, paint);
	    	    	
	    	paint.setColor(Color.BLACK);
	    	paint.setStrokeWidth(2);
	    	
	    	canvas.drawText("硂琌GraphicView酶瓜跋", line_x, line_y + 50, paint);
	        int pos = 70;
	    	paint.setColor(Color.RED);
	    	canvas.drawRect(pos-5, line_y - 5, pos+5, line_y + 5, paint);
	    	paint.setColor(Color.YELLOW);
	    	canvas.drawRect(pos-3, line_y - 3, pos+3, line_y + 3, paint);
	     }
	 }