Question

在我的应用程序中，我想从gallary中获取图像并裁剪该图像并将裁剪图像设置为imageview。使用以下代码从gallary中获取图像

 Intent photoPickerIntent = new Intent(Intent.ACTION_PICK,android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
           photoPickerIntent.setType("image/*");
           startActivityForResult(photoPickerIntent, 0);

使用follaowing代码将onActivityResult方法发送到数据之后。然后使用默认应用程序裁剪图像。

    Uri selectedImageUri = data.getData();

                    selectedImagePath = getPath(selectedImageUri);
startCrop(selectedImagePath);

这是获取路径方法

public String getPath(Uri uri) 
        {
           try{
         String[] projection = { MediaStore.Images.Media.DATA,MediaStore.Images.ImageColumns.ORIENTATION };
         Cursor cursor = managedQuery(uri, projection, null, null, null);
         int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
         cursor.moveToFirst();
         if(cursor.getString(column_index)==null)
            {
                Toast.makeText(EmailRegistrationActivity.this, "Please Select Image from Gallery",Toast.LENGTH_SHORT).show();
                return "";
            }else
            {
                Log.e("return string======",cursor.getString(column_index));
                return cursor.getString(column_index);

            }
           }catch(Exception e)
           {
               e.printStackTrace();
               Toast.makeText(EmailRegistrationActivity.this, "Please Select Image from Gallery",Toast.LENGTH_SHORT).show();
                return "";
           }
        }

这是裁剪方法

public  void startCrop(String m_Path)
 {
  Intent m_cropIntent = new Intent("com.android.camera.action.CROP");
     // indicate image type and Uri
     m_cropIntent.setDataAndType(Uri.fromFile(new File(m_Path)), "image/*");
     // set crop properties
     m_cropIntent.putExtra("crop", "true");
     // indicate aspect of desired crop
     m_cropIntent.putExtra("aspectX", 1);
     m_cropIntent.putExtra("aspectY", 1);
     // indicate output X and Y
     m_cropIntent.putExtra("outputX", 256);
     m_cropIntent.putExtra("outputY", 256);
     Uri cropUri = getTempFile();
     strImagePath_Crop=cropUri.getPath();
  m_cropIntent.putExtra(MediaStore.EXTRA_OUTPUT, cropUri);
     // retrieve data on return
     m_cropIntent.putExtra("return-data", true);
     // start the activity - we handle returning in onActivityResult
     startActivityForResult(m_cropIntent, 535);
 }

之后在onactivityresult方法中，我通过以下代码获取来自另一个开关盒的数据

    try{
         Log.e("strImagePath_Crop======",strImagePath_Crop);
         Bitmap bitmap=getCorrectBitmap(strImagePath_Crop);
         profilepic.setBackgroundDrawable(new BitmapDrawable(new RoundedImageView(getApplicationContext()).getCroppedBitmap(bitmap, 350)));
        }catch(Exception e){
            e.printStackTrace();
        }

这段代码也在samsungs4和galaxy nexus中工作。但是在 htc one 它没有用。它在裁剪图像后返回null值。解决方法是什么。请指导我。在此先感谢..

Answer 1

删除m_cropIntent.putExtra("return-data", true);

图库裁剪在HTC One，设备版本4.4中不起作用？

1 个答案: