当从图片库图片被选中的应用程序崩溃 [英] App crashes when image from gallery gets selected

问题描述

在我的应用程序的摄像头功能真正推动我坚果！

The camera function in my app really driving me in nuts !!!

我建立我的应用程序的摄像头功能，但它坠毁时，我试图从图库中选择图片。

I have built an camera function in my app, but it crashed when I try to select the image from gallery.

Bitmap photo;
private static final int RESULT_LOAD_IMAGE = 1;
private static final int REQUEST_IMAGE_CAPTURE = 2;
ImageView imageView;

  private void activeTakePhoto() {  // if select open camera 
        Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        startActivityForResult(takePictureIntent, REQUEST_IMAGE_CAPTURE);
    }

    private void activeGallery() { // if select choose from gallery
        Intent intent = new Intent(Intent.ACTION_PICK,
                android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
        startActivityForResult(intent, RESULT_LOAD_IMAGE);
    }

 @Override
    protected void onActivityResult(int requestCode, int resultCode,
                                    Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        switch (requestCode) {
            case RESULT_LOAD_IMAGE:
                if (requestCode == RESULT_LOAD_IMAGE && resultCode == RESULT_OK & null != data) {
                    Uri selectedImage = data.getData();
                    String[] filePathColumn = {MediaStore.Images.Media.DATA};
                    Cursor cursor = getContentResolver()
                            .query(selectedImage, filePathColumn, null, null,
                                    null);
                    cursor.moveToFirst();
                    int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
                    String picturePath = cursor.getString(columnIndex);
                    cursor.close();
                    Bitmap a = (BitmapFactory.decodeFile(picturePath));
                    photo = scaleBitmap(a, 200, 200);
                    imageView.setImageBitmap(photo);
                    //photo = decodeSampledBitmapFromUri(picturePath, 100, 20);
                    imageView.setImageBitmap(photo);
                }

            case REQUEST_IMAGE_CAPTURE:
                Bitmap thumbnail = (Bitmap) data.getExtras().get("data");
                ByteArrayOutputStream bytes = new ByteArrayOutputStream();
                thumbnail.compress(Bitmap.CompressFormat.JPEG, 90, bytes);

                //to generate random file name
                String fileName = "tempimg.jpg";

                try {
                    photo = (Bitmap) data.getExtras().get("data");
                    //captured image set in imageview
                    imageView.setImageBitmap(photo);
                } catch (Exception e) {
                    e.printStackTrace();
                }
        }
    }

如果我删除 activeTakePhoto（）和情况下REQUEST_IMAGE_CAPTURE毕竟该行：，选定的图像可以在的ImageView 显示。

If I remove the activeTakePhoto() and all the line after case REQUEST_IMAGE_CAPTURE:, the selected image can be displayed on imageView.

如果我删除 activeGallery（），拍摄的图像可以在的ImageView 。

If I remove activeGallery(), the captured image can be display on imageView.

但是，如果我用的片段code我张贴在这里（这两个功能），它坠毁时，我从库中选择一个图像的的logcat 错误

But, if I use the snippet code I posted here (both function), it crashed when I select an image from gallery with the logCat error

 12-10 14:49:03.507      927-927/? E/HwSystemManager﹕ :ACTION_BATTERY_CHANGED pluged =2
    12-10 14:49:07.020  19428-19428/? E/AndroidRuntime﹕ FATAL EXCEPTION: main
        java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=1, result=-1, data=Intent { dat=content://media/external/images/media/832821 flg=0x1 }} to activity {com.example.project.myapplication/com.example.project.myapplication.GUI.AddMoreClaims}: java.lang.NullPointerException
                at android.app.ActivityThread.deliverResults(ActivityThread.java:3579)
            at android.app.ActivityThread.handleSendResult(ActivityThread.java:3622)
            at android.app.ActivityThread.access$1100(ActivityThread.java:169)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1436)

和线路位图的缩略图=（位图）data.getExtras（）获得（数据）; 。然而，当我选择捕获映像，拍摄的图像仍然可以显示在的ImageView 。

and the line is Bitmap thumbnail = (Bitmap) data.getExtras().get("data");. However, when I select capture image, the captured image still can display on imageView.

推荐答案

你缺少休息;之间切换的情况下阻止。结果
一旦突破放，你会不会打通异常作为秋季不会发生在案REQUEST_IMAGE_CAPTURE

you are missing break; between switch cases block.
Once break is put, you will not get exception as fall through will not happen to case 'REQUEST_IMAGE_CAPTURE'

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