Android中画bit地图的简单示例

程序效果：读入bitmap的数据流，解码，再画出来：

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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 buffer		InputStream is = getResources().openRawResource(R.drawable.icon);		//decode		Bitmap mBitmap = BitmapFactory.decodeStream(is);		Paint mPaint = new Paint();		canvas.drawBitmap(mBitmap, 40, 40, mPaint);	}	}

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1 楼 happyljt 2010-01-25  

已阅