BitmapUtils

2019年8月5号, 新增显示一寸照为原型头像时人脸显示不全问题:

Glide 4.0以上使用

依赖: implementation 'com.github.bumptech.glide:glide:4.8.0'
圆形头像: implementation 'de.hdodenhof:circleimageview:2.2.0'

//图片是在百度上随便找到小姐姐, 换成自己的图片地址, 如果发现bitmap为空, 注意你的图片地址是否正确且用glide是否能加载出来
final String iconUrl_3 = "https://ss0.bdstatic.com/94oJfD_bAAcT8t7mm9GUKT-xh_/timg?image&quality=100&size=b4000_4000&sec=1564996498&di=92e037c0e7ba668706ad7cd7f24cb3d4&src=http://tgi12.jia.com/119/529/19529864.jpg";
//网络请求要放在子线程
new Thread(new Runnable() {
    @Override
    public void run() {
        final Bitmap bitmap = BitmapUtils.getBitmapFromeNetUrl(iconUrl);
        final Bitmap bmp = BitmapUtils.cropSquareBitmap(bitmap);
        runOnUiThread(new Runnable() {
            @Override
            public void run() {
                if (bmp != null) {
                    Glide.with(mActivity)
                        .load(bmp)
                        .into(ciIcon);
                }
                
            }
        });
    }
}).start();

Glide 3.0使用:

依赖: compile 'com.github.bumptech.glide:glide:3.6.1'
圆形头像: compile 'de.hdodenhof:circleimageview:3.0.0'

//图片是在百度上随便找到小姐姐, 换成自己的图片地址, 如果发现bitmap为空, 注意你的图片地址是否正确且用glide是否能加载出来
final String iconUrl = "https://ss0.bdstatic.com/94oJfD_bAAcT8t7mm9GUKT-xh_/timg?image&quality=100&size=b4000_4000&sec=1564996498&di=92e037c0e7ba668706ad7cd7f24cb3d4&src=http://tgi12.jia.com/119/529/19529864.jpg";
//网络请求要放在子线程
new Thread(new Runnable() {
    @Override
    public void run() {
        final Bitmap bitmap = BitmapUtils.getBitmapFromeNetUrl(iconUrl);
        final Bitmap bmp = BitmapUtils.cropSquareBitmap(bitmap);
        newPortalFragment.this.getActivity().runOnUiThread(new Runnable() {
            @Override
            public void run() {
                if (bmp != null) {
                    //将bitmap数据转为bytes数组
                    ByteArrayOutputStream baos = new ByteArrayOutputStream();
                    bmp.compress(Bitmap.CompressFormat.PNG, 100, baos);
                    byte[] bytes = baos.toByteArray();

                    //Glide加载bytes数组
                    Glide.with(newPortalFragment.this.getActivity())
                        .load(bytes)
                        .dontAnimate()
                        .diskCacheStrategy(DiskCacheStrategy.RESULT)
                        .placeholder(R.mipmap.mail_changyong_normal)
                        .error(R.mipmap.mail_changyong_normal)
                        .into(cirImg);
                }
            }
        });
    }
}).start();

BitmapUtils.java 类源码

/**
 * des: Bitmap处理相关操作
 * author: geaosu
 */
public class BitmapUtils {

    /**
     * 截取正方形 - 长图 - 中间位置
     */
    public static void getCenterSquare() {

    }

    /**
     * 截取正方形 - 长图 - 结束位置
     */
    public static void getEndSquare() {

    }

    /**
     * 按正方形剪裁图片
     * 指定正方形边长
     */
    public static Bitmap imageCrop(Bitmap bitmap, int width) {
        // 得到图片的宽，高
        int w = bitmap.getWidth();
        int h = bitmap.getHeight();

        //width最大不能超过长方形的短边
        if (w < width || h < width) {
            width = w > h ? h : w;
        }

        int retX = (w - width) / 2;
        int retY = (h - width) / 2;

        return Bitmap.createBitmap(bitmap, retX, retY, width, width, null, false);
    }

    /**
     * 按正方形剪裁图片
     * 截最大的正方形
     */
    public static Bitmap imageCrop(Bitmap bitmap) {
        // 得到图片的宽，高
        int w = bitmap.getWidth();
        int h = bitmap.getHeight();

        int width = w > h ? h : w;

        int retX = (w - width) / 2;
        int retY = (h - width) / 2;

        return Bitmap.createBitmap(bitmap, retX, retY, width, width, null, false);
    }

    /**
     * 获取裁剪后的正方形图片的bitmap数据
     * author: geaosu
     *
     * @param bitmap 原图
     * @return 裁剪后的图像
     */
    public static Bitmap cropSquareBitmap(Bitmap bitmap) {
        if (bitmap == null) {
            return null;
        }
        int w = bitmap.getWidth();
        int h = bitmap.getHeight();
        int width = w >= h ? h : w;
        int height = width;
        int x = 0;
        int y = 40;
        if (y + height > h) {
            y = 0;
        }
        return Bitmap.createBitmap(bitmap, x, y, width, height, null, false);
    }

    /**
     * 从图片的网络地址url中获取图片的bitmap数据
     * 
     * @param 图片网络url
     * @return bitmap
     */
    public static Bitmap getBitmapFromeNetUrl(String imgUrl) {
        InputStream inputStream = null;
        ByteArrayOutputStream outputStream = null;
        URL url = null;
        try {
            url = new URL(imgUrl);
            HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();
            httpURLConnection.setRequestMethod("GET");
            httpURLConnection.setReadTimeout(2000);
            httpURLConnection.connect();
            if (httpURLConnection.getResponseCode() == 200) {
                Log.d("geaosu", "网络连接成功" + httpURLConnection.getResponseCode());
                inputStream = httpURLConnection.getInputStream();
                outputStream = new ByteArrayOutputStream();
                byte buffer[] = new byte[1024 * 8];
                int len = -1;
                while ((len = inputStream.read(buffer)) != -1) {
                    outputStream.write(buffer, 0, len);
                }
                byte[] bu = outputStream.toByteArray();
                Bitmap bitmap = BitmapFactory.decodeByteArray(bu, 0, bu.length);
                return bitmap;
            } else {
                Log.d("geaosu", "网络连接失败" + httpURLConnection.getResponseCode());
            }
        } catch (Exception e) {
        } finally {
            if (inputStream != null) {
                try {
                    inputStream.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if (outputStream != null) {
                try {
                    outputStream.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        return null;
    }

}