onActivityResult用户取消活动

Question

我有一个获取图像的活动调用

Set<Permission> getAuthorities() {
    Authority.findAllById(this.rank)
    // instead of: UserAuthority.findAllByUser(this)*.permission
}

在我的onActivityResult上，如果用户取消之间的操作，我想处理该场景。

startActivityForResult(Intent.createChooser(intent, "Select Picture"), SELECT_PICTURE);

但如果用户取消操作无处获取信息。我试过调试，但它没有抓到任何地方。这里有什么问题？

Answer 1

public void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (resultCode == RESULT_OK) {
        if (requestCode == SELECT_PICTURE) {

            Uri selectedImageUri = data.getData();
            String selectedImagePath = getPath(selectedImageUri);
            if (selectedImagePath != null) {
                 //do something
           }
            else
                Log.i("At the","selectedimagenull");
            }

        else
            Log.i("At the","SELECT PICTURENULL");
    }
  else
  Log.i("At the","result not ok");  // User cancelled the activity
}