Android ImageView無法從圖庫或相機中獲取圖像

Question

我想從Android上的圖片庫或相機中選擇一張照片，然后在ImageView上顯示該照片，打開圖片庫或相機就可以了，沒有問題。 但是問題是，我選擇或從相機拍攝的照片沒有顯示在ImageView上，並且沒有錯誤。

下面是我的代碼

private static final int CAMERA_REQUEST_CODE = 1;
private static final int SELECT_FILE = 0;

public PersonalDataStep(){
}

@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
}

@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.personal_data_step, container, false);
    ButterKnife.bind(this, view);

    //imageEktp.setClickable(true);

    getPhoto.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            //Log.d("test : ", "testing");
            CharSequence menu[] = new CharSequence[]{"Take From Galery", "Open Camera"};
            AlertDialog.Builder builder = new AlertDialog.Builder(getContext());
            builder.setTitle("Pick a Picture");
            builder.setItems(menu, new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialogInterface, int i) {
                    if(i == 0){
                        Intent intent = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
                        intent.setType("image/*");
                        startActivityForResult(intent, SELECT_FILE);
                    }else if(i == 1){
                        Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                        startActivityForResult(intent, CAMERA_REQUEST_CODE);

                    }
                }
            });
            builder.show();
        }
    });

    return view;
}

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    if(resultCode== Activity.RESULT_OK) {
        if (resultCode == CAMERA_REQUEST_CODE) {
            Bundle bundle = data.getExtras();
            final Bitmap bitmap = (Bitmap) bundle.get("data");
            imageEktp.setImageBitmap(bitmap);
        } else if (resultCode == SELECT_FILE) {
            Uri selectedImage = data.getData();
            imageEktp.setImageURI(selectedImage);
            Log.d("image from galery : ", selectedImage.toString());
        }
    }else{
        Toast.makeText(getActivity(), "You haven't picked Image",Toast.LENGTH_LONG).show();
    }
}

Answer 1

嘗試一下 ，對您的方法進行一些更改，對我來說效果很好。

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    if(resultCode== Activity.RESULT_OK) {
        if (requestCode == CAMERA_REQUEST_CODE && data! = null) {
            Uri mImageCaptureUri = data.getData();
             imageEktp.setImageURI(mImageCaptureUri);
        } else if (requestCode == SELECT_FILE && data != null) {
            Uri selectedImage = data.getData();
            imageEktp.setImageURI(selectedImage);
            Log.d("image from galery : ", selectedImage.toString());
        }
    }else{
        Toast.makeText(getActivity(), "You haven't picked Image",Toast.LENGTH_LONG).show();
    }
}

Answer 2

試試這個代碼：

@Override
 public void onActivityResult(int requestCode, int resultCode, Intent data) {
 super.onActivityResult(requestCode, resultCode, data);
 if (resultCode == Activity.RESULT_OK) {
 if (requestCode == SELECT_FILE)
    onSelectFromGalleryResult(data);
 else if (requestCode == REQUEST_CAMERA)
    onCaptureImageResult(data);
 }
 }
@SuppressWarnings("deprecation")
private void onSelectFromGalleryResult(Intent data) {
 Bitmap bm=null;
 if (data != null) {
 try {
    bm=MediaStore.Images.Media.getBitmap(getApplicationContext().getContentResolver(), 
data.getData());
 } catch (IOException e) {
    e.printStackTrace();
 }
 }
 ivImage.setImageBitmap(bm);
  }
 private void onCaptureImageResult(Intent data) {
 Bitmap thumbnail = (Bitmap) data.getExtras().get("data");
 ByteArrayOutputStream bytes = new ByteArrayOutputStream();
 thumbnail.compress(Bitmap.CompressFormat.JPEG, 90, bytes);
 File destination = new File(Environment.getExternalStorageDirectory(),
    System.currentTimeMillis() + ".jpg");
 FileOutputStream fo;
 try {
 destination.createNewFile();
 fo = new FileOutputStream(destination);
 fo.write(bytes.toByteArray());
 fo.close();
 } catch (FileNotFoundException e) {
 e.printStackTrace();
 } catch (IOException e) {
 e.printStackTrace();
 }
 ivImage.setImageBitmap(thumbnail);
 }

我認為這可以幫助您檢查一下您的代碼。

Answer 3

代碼中的小錯字

if (resultCode == CAMERA_REQUEST_CODE) {
 ...
} else if (resultCode == SELECT_FILE) {
 ...
}

應該

if (requestCode == CAMERA_REQUEST_CODE) {
 ...
} else if (requestCode == SELECT_FILE) {
 ...
}