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Android中画bit地图的简单示例

发布时间: 2012-09-12 09:21:30 作者: rapoo

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:

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Android中画bit地图的简单示例

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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 bufferInputStream is = getResources().openRawResource(R.drawable.icon);//decodeBitmap mBitmap = BitmapFactory.decodeStream(is);Paint mPaint = new Paint();canvas.drawBitmap(mBitmap, 40, 40, mPaint);}}

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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?

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