如何获取刚从相机捕获的图像路径

Question

下面是我的代码但是没有给我onActivity结果中的图像路径

Uri selectedImageUri = data.getData();
                selectedImagePath = getPath(selectedImageUri);
                Log.w("jay", "Camera Image Path :" + selectedImagePath);

                Toast.makeText(MiscansOther_pannel.this, selectedImagePath,
                        Toast.LENGTH_LONG).show();

Answer 1

这对我有用......

码:

Uri selectedImageUri = data.getData();
selectedImagePath = getRealPathFromURI(selectedImageUri);

方法: getRealPathFromURI()

//----------------------------------------
    /**
     * This method is used to get real path of file from from uri
     * 
     * @param contentUri
     * @return String
     */
    //----------------------------------------
    public String getRealPathFromURI(Uri contentUri)
    {
        try
        {
            String[] proj = {MediaStore.Images.Media.DATA};
            Cursor cursor = managedQuery(contentUri, proj, null, null, null);
            int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
            cursor.moveToFirst();
            return cursor.getString(column_index);
        }
        catch (Exception e)
        {
            return contentUri.getPath();
        }
    }

编辑:

正如我在捕获的图像后在某些设备中注意到的那样,数据onActivityResult()为空,

因此,另一种方法是将特定图像文件名作为参数传递给您的Intent for capture image作为putExtra参数.

然后还将此图像Uri插入Media Store,现在使用此Uri进一步使用,

您可以检查图像是否被捕获File.exist(),

代码看起来像,

ContentValues values = new ContentValues();
values.put(MediaStore.Images.Media.TITLE, "Image File name");
Uri mCapturedImageURI = getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);
Intent intentPicture = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intentPicture.putExtra(MediaStore.EXTRA_OUTPUT, mCapturedImageURI);
startActivityForResult(intentPicture,ACTION_TAKE_PICTURE);

现在,您可以使用相同的方法从Uri获取文件路径,

在这种情况下,它将在onActivityResult(),

selectedImagePath = getRealPathFromURI(mCapturedImageURI); // don't use data.getData() as it return null in some device instead  use mCapturedImageUR uri variable statically in your code,