android三种载入图片方式

时间：2014-09-18 16:33:54 收藏：0 阅读：275

package smalt.music.utils;

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.BitmapFactory.Options;

//加载图片的方法:3种
public class BitmapUntil {
    // 直接载入图片
    public static Bitmap getBitmap(String path) {
        Bitmap bt = BitmapFactory.decodeFile(path);
        return bt;
    }

    // 指定大小载入图片
    public static Bitmap getBitmap(String path, int size) {
        Options op = new Options();
        op.inSampleSize = size;
        Bitmap bt = BitmapFactory.decodeFile(path, op);
        return bt; www.2cto.com
    }

    // 按宽高压缩载入图片
    public static Bitmap getBitmap(String path, int width, int heigh) {
        Options op = new Options();
        op.inJustDecodeBounds = true;
        Bitmap bt = BitmapFactory.decodeFile(path, op);
        int xScale = op.outWidth / width;
        int yScale = op.outHeight / heigh;
        op.inSampleSize = xScale > yScale ? xScale : yScale;
        op.inJustDecodeBounds = false;
        bt = BitmapFactory.decodeFile(path, op);
        return bt;
    }
}

原文：http://blog.csdn.net/tw19811220/article/details/39373321