Android照片浏览上传错误：无法提供结果resultinfo {who = null ......}

Question

每当我尝试点击浏览按钮时，我想浏览我的图库并从中选择一张照片并将其显示在新活动中。 直到我在相同的活动上显示照片没有错误，但是一旦我更改代码以在另一个意图上传输照片就会出现强制关闭错误

这是我的代码：

主屏幕：

Button button = (Button) findViewById(R.id.Button01);
    button.setOnClickListener(new OnClickListener() 
    {
          public void onClick(View arg0) 
          {
                     Intent intent1 = new Intent(MainActivity.this,Edit.class);
             startActivity(intent1);
          }

    });

另一个屏幕：

public class Edit extends Activity 
   {

private String selectedImagePath;
private static final int SELECT_PICTURE = 1;
private ImageView img;

      protected void onCreate(Bundle savedInstanceState) 
{
    super.onCreate(savedInstanceState);
    setContentView(R.layout.edit);

    img = (ImageView)findViewById(R.id.ImageView1);




     Intent intent = new Intent();
         intent.setType("image/*");
         intent.setAction(Intent.ACTION_GET_CONTENT);
         startActivityForResult(Intent.createChooser(intent,"Select Picture"), SELECT_PICTURE);

}

 public void onActivityResult(int requestCode, int resultCode, Intent data) 
 {

    if (resultCode == RESULT_OK) 
        {
            if (requestCode == SELECT_PICTURE) 
            {
                Uri selectedImageUri = data.getData();
                selectedImagePath = getPath(selectedImageUri);
                System.out.println("Image Path : " + selectedImagePath);
                img.setImageURI(selectedImageUri);
            }
        }

 }





public String getPath(Uri uri) {
        String[] projection = { MediaStore.Images.Media.DATA };
        Cursor cursor = managedQuery(uri, projection, null, null, null);
        int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
        cursor.moveToFirst();
        return cursor.getString(column_index);
    }