1

我有一个按钮，当按下它时，我会得到一个 alertDialog 来选择：画廊或拍照。按下拍照并拍照时，图片未保存在图库中。为什么是这样？我需要这张图片，因为稍后我打算将它与一个帖子一起发送以将其上传到我的服务器并将字符串添加到数据库中。有人可以告诉我我做错了什么吗？

private void selectImage() {
        final CharSequence[] items = { "Take Photo", "Choose from gallery",
                "Cancel" };

        AlertDialog.Builder builder = new AlertDialog.Builder(AddBuilding.this);
        builder.setTitle("Add Photo!");

        builder.setItems(items, new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int item) {
                if (items[item].equals("Take Photo")) {
                    Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                    File f = new File(android.os.Environment
                            .getExternalStorageDirectory(), "temp.jpg");
                    intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(f));
                    startActivityForResult(intent, REQUEST_CAMERA);
                }

                else if (items[item].equals("Choose from gallery")) {
                    Intent intent = new Intent(
                            Intent.ACTION_PICK,
                            android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
                    intent.setType("image/*");
                    startActivityForResult(
                            Intent.createChooser(intent, "Select File"),
                            SELECT_FILE);
                }

                else if (items[item].equals("Cancel")) {
                    dialog.dismiss();
                }
            }
        });
        builder.show();
    }


@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (resultCode == RESULT_OK) {
        if (requestCode == REQUEST_CAMERA) {
            File f = new File(Environment.getExternalStorageDirectory()
                    .toString());
            for (File temp : f.listFiles()) {
                if (temp.getName().equals("temp.jpg")) {
                    f = temp;
                    break;
                }
            }
            try {
                Bitmap bm;
                BitmapFactory.Options btmapOptions = new BitmapFactory.Options();

                bm = BitmapFactory.decodeFile(f.getAbsolutePath(),
                        btmapOptions);

                bm = Bitmap.createScaledBitmap(bm, 400, 300, true);
                btnImg.setImageBitmap(bm);
                btnImg.setScaleType(ScaleType.CENTER_INSIDE);

                String path = android.os.Environment
                        .getExternalStorageDirectory()
                        + File.separator
                        + "Phoenix" + File.separator + "default";
                f.delete();
                OutputStream fOut = null;
                File file = new File(path, String.valueOf(System
                        .currentTimeMillis()) + ".jpg");
                try {
                    fOut = new FileOutputStream(file);
                    bm.compress(Bitmap.CompressFormat.JPEG, 85, fOut);
                    fOut.flush();
                    fOut.close();
                } catch (FileNotFoundException e) {
                    e.printStackTrace();
                } catch (IOException e) {
                    e.printStackTrace();
                } catch (Exception e) {
                    e.printStackTrace();
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        } else if (requestCode == SELECT_FILE) {
            Uri selectedImageUri = data.getData();

            String tempPath = getPath(selectedImageUri, AddBuilding.this);
            Bitmap bm;
            BitmapFactory.Options btmapOptions = new BitmapFactory.Options();
            bm = BitmapFactory.decodeFile(tempPath, btmapOptions);
            bm = Bitmap.createScaledBitmap(bm, 400, 300, true);
            btnImg.setImageBitmap(bm);
            btnImg.setScaleType(ScaleType.CENTER_INSIDE);
        }
    }
}



public String getPath(Uri uri, Activity activity) {
        String[] projection = { MediaColumns.DATA };
        Cursor cursor = activity
                .managedQuery(uri, projection, null, null, null);
        int column_index = cursor.getColumnIndexOrThrow(MediaColumns.DATA);
        cursor.moveToFirst();
        return cursor.getString(column_index);
    }
4

2 回答 2

2

您正在获得外部存储。而是用这个保存你的图像：

MediaStore.Images.Media.insertImage(getContentResolver(), 
                                    Bitmap, 
                                    Title, 
                                    Description);

这会将图像保存在图库中。请参阅insertImage()。

参数
cr使用图像的内容解析器 要
Path 插入的图像的路径 图像
name 的名称 图像
description 的描述


将 The返回URL到新创建的图像

于 2013-06-17T20:16:42.090 回答
0

为时已晚，但为其他人发布了答案。做这个

文件 f = 新文件 (Environment.getExternalStorageDirectory() + "/CameraImages/temp.jpg");

于 2015-07-31T05:46:59.590 回答