Bitmap

package org.lxh.demo;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.util.AttributeSet;
import android.view.View;
public class MyView extends View {
    public MyView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }
    @Override
    protected void onDraw(Canvas canvas) {        // 绘图
        Bitmap bitmap = BitmapFactory.decodeResource(super.getResources(),
                R.drawable.android_mldn);
        Paint paint = new Paint();
        paint.setAntiAlias(true);             // 消除锯齿
        canvas.drawBitmap(bitmap, 0, 0, paint);         // 画图
        paint.setColor(Color.WHITE);         // 白色字体
        paint.setTextSize(20);             // 定义字号
        canvas.drawText("图片高度：" + bitmap.getHeight() + "，图片宽度：" + bitmap.getWidth(),
                10, bitmap.getHeight() + 20, paint);    // 输出文字
    }
}

041002_Bitmap.ppt