如何从一个嵌套片段中获取图像？

huangapple
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英文:

How to get an image from a fragment inside a fragment?

问题

我有一个按以下方式组织的项目：

AdminAddNewMerchantActivity

-> TimeFragment

----> FindFoodAdminFragment

----> MapMerchantFagment

----> PriceFragment

----> StartFragment

----> EndFragment

-> OrdersFragment

----> IncompleteOrders

----> CompleteOrders

PickImageActivity

其中：

-> - 新子目录

----> - 子子目录

我正在尝试选择图像并分配它。我已经成功让它在PickImageActivity中工作，但在尝试从FindFoodAdminFragment中使用相同的代码时遇到问题。我在PickImageActivity中使用的代码如下：

  1. public class PickImageActivity extends AppCompatActivity {
  2.     ImageView image;
  3.     CircleImageView imageBanner;
  4.     private Uri imageUri, imageUri2;
  5.     private static final int GalleryPick = 1, GalleryPickBanner = 2;
  7.     protected void onCreate(Bundle savedInstanceState) {
  8.         super.onCreate(savedInstanceState);
  9.         setContentView(R.layout.activity_pick_image);
  10.         .
  11.         .
  12.         .
  13.         image = findViewById(R.id.pi_input_merchant_image);
  14.         imageBanner = findViewById(R.id.pi_input_banner_image);
  15.         Intent galleryIntent = new Intent(Intent.ACTION_GET_CONTENT, 
  16.         android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
  17.         startActivityForResult(galleryIntent, GalleryPick);
  18.         .
  19.         .
  20.         .
  21.     }
  23.     public void onActivityResult(int requestCode, int resultCode, Intent data) {
  24.         super.onActivityResult(requestCode, resultCode, data);
  25.         if((requestCode == GalleryPick) && (resultCode == RESULT_OK) && (data!=null)) {
  26.             imageUri = data.getData();
  27.             image.setImageURI(imageUri);
  28.             //  Prevalent.currentMerchant.setImage();
  29.         } else if((requestCode == GalleryPickBanner) && (resultCode == RESULT_OK) && (data!=null)) {
  30.             imageUri2 = data.getData();
  31.             imageBanner.setImageURI(imageUri2);
  32.         }
  33.     }
  34. }

问题出现在startActivityForResult(galleryIntent, GalleryPick);。我尝试过super.startActivityForResult(galleryIntent, GalleryPick);和getParentFragment().startActivityForResult(galleryIntent, GalleryPick);，但都无法工作。我怎样才能让它从FindFoodAdminFragment中正常工作？

英文:

I have a project organized as follows:

AdminAddNewMerchantActivity

->TimeFragment

---->FindFoodAdminFragment

---->MapMerchantFagment

---->PriceFragment

---->StartFragment

---->EndFragment

->OrdersFragment

---->IncompleteOrders

---->CompleteOrders

PickImageActivity

where:

-> - a new subdirectory

----> - a subsubdirectory

I'm trying to pick an image and assign it. I successfully got it to work in PickImageActivity, but have problems getting the same code to work from FindFoodAdminFragment. The code for PickImageActivity that I use is as follows:

  1. public class PickImageActivity extends AppCompatActivity {
  2. ImageView image;
  3. CircleImageView imageBanner;
  4. private Uri imageUri, imageUri2;
  5. private static final int GalleryPick = 1, GalleryPickBanner = 2;
  7.    protected void onCreate(Bundle savedInstanceState) {
  8.         super.onCreate(savedInstanceState);
  9.         setContentView(R.layout.activity_pick_image);
  10.    .
  11.    .
  12.    .
  13.         image = findViewById(R.id.pi_input_merchant_image);
  14.         imageBanner = findViewById(R.id.pi_input_banner_image);
  15.         Intent galleryIntent = new Intent(Intent.ACTION_GET_CONTENT, 
  16.         android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
  17.         startActivityForResult(galleryIntent, GalleryPick);
  18.    .
  19.    .
  20.    .
  21.     }
  23.    public void onActivityResult(int requestCode, int resultCode, Intent data)
  24.    {
  25.            super.onActivityResult(requestCode, resultCode, data);
  26.            if((requestCode == GalleryPick) && (resultCode == RESULT_OK) && (data!=null))
  27.            {
  28.                imageUri = data.getData();
  29.                image.setImageURI(imageUri);
  30.                //  Prevalent.currentMerchant.setImage();
  31.            }
  32.            else if((requestCode == GalleryPickBanner) && (resultCode == RESULT_OK) && (data!=null))
  33.            {
  34.                imageUri2 = data.getData();
  35.                imageBanner.setImageURI(imageUri2);
  36.            }
  37.        }
  38.    }
  39. }

The problem is in startActivityForResult(galleryIntent, GalleryPick); I tried super.startActivityForResult(galleryIntent, GalleryPick); and getParentFragment().startActivityForResult(galleryIntent, GalleryPick); but it doesn't work. How do I get it to work from FindFoodAdminFragment?

答案1

得分: 0

我通过从FindFoodAdminFragment启动新的活动，并使用getIntent().getExtras()和intent.putExtra("myKey", myString)在活动和片段之间传递数据来解决了这个问题。在活动中，startActivityForResult运行良好，所以我在活动中使用了它，然后触发了onActivityResult活动。在onActivityResult中，我putExtra了imageUri，然后我启动了另一个包含FindFoodAminFragment的活动并使用getExtras。感谢大家的帮助。

英文:

I solved it by starting a new activity from FindFoodAdminFragment and using getIntent().getExtras() and intent.putExtra("myKey", myString) to transmit data between the activity and fragment. In an activity startActivityForResult works fine so I used it in the activity then onActivityResult activity is triggered. In onActivityResult i putExtra the imageUri, then I started another activity which contained FindFoodAminFragment and getExtras. Thanks for help all.

huangapple
  • 本文由 发表于 2020年7月26日 21:18:39
  • 转载请务必保留本文链接：https://go.coder-hub.com/63100688.html
  • android
  • fragment
  • image
  • java
  • startactivityforresult
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