棉花糖设备中的图像保存问题

Question

Aim :my application take images from camera and gallery.And crop this image and save to external storage.

Issue : Application shows unfortunately photos has stooped message while clicking save button from crop page.The error happens only in marshmallow devices.working fine in all other devices.

my code to take image is given below:

final CharSequence[] options = {"Take Photo", "Choose from Gallery"};
            AlertDialog.Builder builder = new AlertDialog.Builder(CategoryActivity.this);
            builder.setTitle("Select Pic Using...");
            builder.setItems(options, new DialogInterface.OnClickListener() {

                @Override
                public void onClick(DialogInterface dialog, int item) {
                    if (options[item].equals("Take Photo")) {

                        try {
                            Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);

                            pic = new File(Environment.getExternalStorageDirectory(),
                                    "tmp_" + String.valueOf(System.currentTimeMillis()) + ".jpg");

                            picUri = Uri.fromFile(pic);

                            cameraIntent.putExtra(android.provider.MediaStore.EXTRA_OUTPUT, picUri);

                            cameraIntent.putExtra("return-data", true);

                            startActivityForResult(cameraIntent, LOAD_IMAGE_CAMERA);
                        } catch (ActivityNotFoundException e) {
                            e.printStackTrace();
                        }

                    } else if (options[item].equals("Choose from Gallery")) {
                        Intent intent = new Intent(Intent.ACTION_PICK,
                                android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);


                        startActivityForResult(Intent.createChooser(intent, "Select Picture"), LOAD_IMAGE_GALLARY);
                        SharedPreferences.Editor editor = pref.edit();
                        editor.putBoolean("profile", false);
                        editor.commit();
                        //  finish();
                    }
                }
            });

            builder.show();
        }
    });

if (requestCode == LOAD_IMAGE_CAMERA && resultCode == RESULT_OK) {

        SharedPreferences.Editor editor = pref.edit();
        editor.putBoolean("profile", false);
        editor.commit();

        Intent in = new Intent(CategoryActivity.this, ImageCrop.class);

        in.putExtra("URI", picUri);
        in.putExtra("cat", type);
        in.putExtra("contest_idadd", contestid_i);


        startActivity(in);


    } else if (requestCode == LOAD_IMAGE_GALLARY) {
        if (data != null) {
            SharedPreferences.Editor editor = pref.edit();
            editor.putBoolean("profile", false);
            editor.commit();

            picUri = data.getData();

            Intent in = new Intent(CategoryActivity.this, ImageCrop.class);
            in.putExtra("URI", picUri);
            in.putExtra("cat", type);
            in.putExtra("contest_idadd", contestid_i);

            startActivity(in);

        }
    } 

And crop using the below code

        Bundle bundle = getIntent().getExtras();

            if (bundle != null) {
                picUri = (Uri) bundle.get("URI");
                cat_value = (String) bundle.get("cat");
            }
    protected void CropImage() {
            try {
                Intent intent = new Intent("com.android.camera.action.CROP");
                intent.setDataAndType(picUri, "image/*");
    Log.d("piccccc",picUri+"");
                intent.putExtra("crop", "true");
                intent.putExtra("outputX", 200);
                intent.putExtra("outputY", 200);
                intent.putExtra("aspectX", 3);
                intent.putExtra("aspectY", 3);
                intent.putExtra("scaleUpIfNeeded", true);
                intent.putExtra("return-data", true);

                startActivityForResult(intent, CROP_IMAGE);

            } catch (ActivityNotFoundException e) {

            }
        }

     @Override
        protected void onActivityResult(int requestCode, int resultCode, Intent data) {

            if (requestCode == CROP_IMAGE) {
                if (data != null) {
                    // get the returned data

                    Bundle extras = data.getExtras();

                    // get the cropped bitmap
                    Bitmap photo = extras.getParcelable("data");

                    image_array.add(photo);

                    crop.setImageBitmap(photo);

                    if (pic != null) {

                        if (pic.delete()) {

                        }
            }
                }
                else
                {
                    Log.d("cropppppppppppppp", requestCode + "");
                }
            }

In marshmallow devices images not found in saved external storage path.Anyone please give me a solution.

Answer 1

Add proper implementation of taking android.permission.WRITE_EXTERNAL_STORAGE permission in your code. You need to handle permissions in your code from marshmallow and above:

http://developer.android.com/training/permissions/index.html

http://developer.android.com/training/permissions/requesting.html

Answer 2

或使用SDK 22或更低版本（TargetSdkVersion = 22）构建您的应用