android - OnActivityResult 在 TabActivityGroup 中不起作用？

Question

我使用 Tab Activity 作为主 Activity，其中有 4 个选项卡。一个选项卡是 Activity Group，它具有三个按钮。每个按钮是一个 Activity 。我在其中一项 Activity 中使用相机。我知道它的工作原理，因为我已经在存储卡中检查了图像是否已保存，但它没有调用 Onactivityresult() 方法。

这是为了显示 ContentView

    public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    View viewToLoad = LayoutInflater.from(this.getParent()).inflate(R.layout.enter_expenses, null);
    this.setContentView(viewToLoad);            

这段代码是用来拍照的

             dbimgguid = UUID.randomUUID();
             imagename =dbimgguid.toString();
             Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
             photo = new File(Environment.getExternalStorageDirectory(), "Expenses"+imagename+".jpg");
             intent.putExtra(MediaStore.EXTRA_OUTPUT,Uri.fromFile(photo));
             imageurl = Uri.fromFile(photo); 
             startActivityForResult(intent, CAMERA_RECEIPTREQUEST); 

这是 Activity 结果

     @Override
     protected void onActivityResult(int requestCode, int resultCode, Intent data) {  
     super.onActivityResult(requestCode, resultCode, data);  
     System.out.println(requestCode);
     System.out.println(resultCode);
     switch(requestCode)
     {
     case CAMERA_RECEIPTREQUEST:  
         if(resultCode== Activity.RESULT_OK)
         {
         //Toast.makeText(this, "Receipt Image Saved", Toast.LENGTH_SHORT).show();
         BitmapFactory.Options options = new BitmapFactory.Options();
         options.inSampleSize = 8;
         //ImageView jpgView = (ImageView)findViewById(R.id.imageView1);
         Bitmap receipt = BitmapFactory.decodeFile(photo.toString(),options);  
         String image = "Expenses"+imagename+".jpg"; 
         Intent imagepass = new Intent(ExpensesActivity.this,ReviewReceiptImage.class);
         imagepass.putExtra("receipt", receipt);
         imagepass.putExtra("imagename", image);
         startActivityForResult(imagepass, CAMERA_CONFIRMRECEIPT); 
         Toast.makeText(this, "Receipt Image Saved", Toast.LENGTH_SHORT).show();
         }

     case CAMERA_CONFIRMRECEIPT:

         Toast.makeText(this, "Receipt Image Saved", Toast.LENGTH_SHORT).show();
         if(resultCode == CAMERA_CONFIRMRECEIPT)
         {
             take_receipt.setEnabled(false);
             take_receipt.setVisibility(View.GONE);
             show_receipt.setEnabled(true);
             show_receipt.setVisibility(View.VISIBLE);
         } 
         break;
     }
 }

谢谢大家的帮助

Answer 1

我已经解决了我的问题。请在下面查看我的回答，

我终于弄明白/记得这个问题是因为 Android 只允许嵌套子 Activity 层...即子 Activity 不能嵌套子 Activity 。解决这个问题:

从您的子 Activity 调用 getParent().startActivityForResult()您的 parent ( Activity 组)将能够处理 onActivityResult。所以我创建了一个ActivityGroup的子类并处理了这个onActivityResult。如果需要，您可以将该结果重新路由回子 Activity 。只需通过 getLocalActivityManager().getCurrentActivity() 获取当前 Activity 。我的子 Activity 继承自自定义 Activity ，因此我在该子类中添加了一个 handleActivityResult(requestCode, resultCode, data) 以供 ActivityGroup 调用。

用准确的代码回答上面的问题

ActivityGroup->SubActivities->onActivityResult->ActivityGroup(onActivityResult)->subActivity(onActivityResult)

这是 ActivityGroup 类，您必须在其中为所有子 Activity 定义 onActivityResult，

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

         switch(requestCode)
            {

            case CAMERA_RECEIPTREQUEST:   
            if(resultCode == Activity.RESULT_OK)
            {
            ExpensesActivity activity = (ExpensesActivity) getLocalActivityManager().getCurrentActivity();
            activity.onActivityResult(requestCode, resultCode, data);
            }
            break;

            case CAMERA_CONFIRMRECEIPT:
            ExpensesActivity activity1 = (ExpensesActivity) getLocalActivityManager().getCurrentActivity();
            activity1.onActivityResult(requestCode, resultCode, data);   
            }

        }

在子 Activity 中，您必须如下设置 View

    View viewToLoad = LayoutInflater.from(this.getParent()).inflate(R.layout.enter_time, null);
    this.setContentView(viewToLoad);

然后在子Activity的onActivityResulty()

    @Override
    public void onActivityResult(int requestCode,int resultCode, Intent data)
    {
     //Some Code
    }