部分机型（三星）的上传后,图片是默认旋转了90°

解决问题

直接进入正题

当我们上传图片需要做的处理

• 压缩
• 判断角度是否正确
• 如果不角度不对,纠正角度
• 其他(加水印什么的看具体需求)

解决
以下代码块
​
/**

 * 压缩图片，处理某些手机拍照角度旋转的问题
 * @param context
 * @param filePath
 * @param file
 * @param q
 * @return
 * @throws FileNotFoundException
 */
public static File compressImage(Context context, String filePath, File file, int q) throws FileNotFoundException {
    Bitmap bm = getSmallBitmap(filePath);
    int degree = readPictureDegree(filePath);
    LogUtil.e("fengan", "degree==" + degree);
    if (degree != 0) {//旋转照片角度
        bm = rotateBitmap(bm, degree);
    }
    FileOutputStream out = new FileOutputStream(file);
    bm.compress(Bitmap.CompressFormat.JPEG, q, out);
    return file;
}`




/**
 * 获取图片角度
 * @param path
 * @return
 */
public static int readPictureDegree(String path) {
    int degree = 0;
    try {
        ExifInterface exifInterface = new ExifInterface(path);
        int orientation = exifInterface.getAttributeInt(
                ExifInterface.TAG_ORIENTATION,
                ExifInterface.ORIENTATION_NORMAL);
        switch (orientation) {
            case ExifInterface.ORIENTATION_ROTATE_90:
                degree = 90;
                break;
            case ExifInterface.ORIENTATION_ROTATE_180:
                degree = 180;
                break;
            case ExifInterface.ORIENTATION_ROTATE_270:
                degree = 270;
                break;
        }
    } catch (IOException e) {
        e.printStackTrace();
    }
    return degree;
}

 /**
 * 旋转照片
 * @param bitmap
 * @param degress
 * @return
 */
public static Bitmap rotateBitmap(Bitmap bitmap, int degress) {
    if (bitmap != null) {
        Matrix m = new Matrix();
        m.postRotate(degress);
        bitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(),
                bitmap.getHeight(), m, true);
        return bitmap;
    }
    return bitmap;
}
    /**
 * 根据路径获得突破并压缩返回bitmap用于显示
 *
 * @return
 */
public static Bitmap getSmallBitmap(String filePath) {
    final BitmapFactory.Options options = new BitmapFactory.Options();
    options.inJustDecodeBounds = true;
    BitmapFactory.decodeFile(filePath, options);

    // Calculate inSampleSize
    options.inSampleSize = calculateInSampleSize(options, 480, 800);

    // Decode bitmap with inSampleSize set
    options.inJustDecodeBounds = false;

    return BitmapFactory.decodeFile(filePath, options);
}