我正在尝试检查位图的方向并在需要时翻转它，但在应用代码时出现错误。这是我尝试使用 ExifInterface 翻转图像时的代码:

@RequiresApi(api = Build.VERSION_CODES.N)
    public void flipping(Bitmap b)
    {
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        b.compress(Bitmap.CompressFormat.JPEG,100, bos);
        byte[] bitmapdata = bos.toByteArray();
        ByteArrayInputStream bs = new ByteArrayInputStream(bitmapdata);
        try {

            ExifInterface exif = new ExifInterface(bs);
            int orientation = exif.getAttributeInt(ExifInterface.TAG_ORIENTATION,
                    ExifInterface.ORIENTATION_UNDEFINED);
            switch(orientation) {

                case ExifInterface.ORIENTATION_ROTATE_90:
                    rotateImage(b, 90);
                    break;

                case ExifInterface.ORIENTATION_ROTATE_180:
                    rotateImage(b, 180);
                    break;

                case ExifInterface.ORIENTATION_ROTATE_270:
                    rotateImage(b, 270);
                    break;

                case ExifInterface.ORIENTATION_NORMAL:

                default:
                    break;
            }

            encoding();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    public static Bitmap rotateImage(Bitmap source, float angle) {
        Matrix matrix = new Matrix();
        matrix.postRotate(angle);
        return Bitmap.createBitmap(source, 0, 0, source.getWidth(), source.getHeight(),
                matrix, true);
    }

这里是错误:

java.lang.NoSuchMethodError: No direct method <init>(Ljava/io/InputStream;)V in class Landroid/media/ExifInterface; or its super classes (declaration of 'android.media.ExifInterface' appears in /system/framework/framework.jar)
                                                                       at com.sara.image_test.MainActivity.flipping(MainActivity.java:181)
                                                                       at com.sara.image_test.MainActivity.onActivityResult(MainActivity.java:66)
                                                                       at android.app.Activity.dispatchActivityResult(Activity.java:7165)
                                                                       at android.app.ActivityThread.deliverResults(ActivityThread.java:4994)
                                                                       at android.app.ActivityThread.handleSendResult(ActivityThread.java:5041)
                                                                       at android.app.ActivityThread.access$1600(ActivityThread.java:229)
                                                                       at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1875)
                                                                       at android.os.Handler.dispatchMessage(Handler.java:102)
                                                                       at android.os.Looper.loop(Looper.java:148)
                                                                       at android.app.ActivityThread.main(ActivityThread.java:7325)
                                                                       at java.lang.reflect.Method.invoke(Native Method)
                                                                       at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
                                                                       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)

最佳答案

供AndroidX使用

androidx.exifinterface.media.ExifInterface

在build.gradle中引入这个依赖:

implementation 'androidx.exifinterface:exifinterface:1.3.2'

关于使用 ExifInterface 时出现 Android 错误，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/44246110/