Android中画bit地图的简单示例

Android中画bitmap的简单示例

程序效果：读入bitmap的数据流，解码，再画出来：

?

?

代码如下：

package com.ray.draw;import java.io.InputStream;import android.app.Activity;import android.content.Context;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.graphics.Canvas;import android.graphics.Paint;import android.os.Bundle;import android.view.View;public class TestDrawBitmap extends Activity {    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(new myView(this));    }}class myView extends View{public myView(Context context) {super(context);}protected void onDraw(Canvas canvas) {super.onDraw(canvas);//read the icon.png into bufferInputStream is = getResources().openRawResource(R.drawable.icon);//decodeBitmap mBitmap = BitmapFactory.decodeStream(is);Paint mPaint = new Paint();canvas.drawBitmap(mBitmap, 40, 40, mPaint);}}

?

?

2 楼 kevin2562 2010-03-09   简单易懂～～感谢楼主 3 楼 hurry07 2010-04-28   各种画图方法有什么不同呢?

查看更多 下一篇