意图恢复活动后,android alertdialog不显示

时间:2019-03-31 08:35:03

标签: android android-alertdialog

我正在制作一个警告对话框以填写收据项目。警报对话框中有一个按钮,用于移至新活动以扫描QR。问题是在扫描QR码并意图返回到“收货项目活动”后,alertdialog不再显示,因此我需要再次按一下alertdialog按钮。从QR扫描仪返回创建收据后如何使警报对话框仍然显示

我已经尝试添加onShowListener,但alertdialog仍然不显示。

final AlertDialog alertDialog = builder.create();
                alertDialog.setOnShowListener(new DialogInterface.OnShowListener() {
                    @Override
                    public void onShow(DialogInterface dialog) {

                        Button btnScan = v.findViewById(R.id.alertdialog_receipt_scanqr);
                        btnScan.setOnClickListener(new View.OnClickListener() {
                            @Override
                            public void onClick(View v) {
                                Intent i = new Intent(CreateReceiptActivity.this, QRScannerActivity.class);
                                startActivityForResult(i, QR_REQUEST_CODE);
                                alertDialog.dismiss();
                                finish();
                            }
                        });
                    }
                });
                alertDialog.show(); 

这是ReceiptActivity的完整代码:

public class CreateReceiptActivity extends AppCompatActivity {

    @BindView(R.id.receipt_date)
    TextView date;
    @BindView(R.id.receipt_invoice)
    TextView invoiceNumber;
    @BindView(R.id.btn_receipt_add_item)
    ImageButton addItem;
    @BindView(R.id.btn_receipt_print)
    ImageButton printItem;
    @BindView(R.id.receipt_view_recycler)
    RecyclerView recyclerView;
    @BindView(R.id.create_receipt_pb_loading)
    ProgressBar pbloading;

    private static final int QR_REQUEST_CODE = 1;
    List<ListAutoComplete> autoCompleteList;
    ListAutoComplete listAutoComplete;


    List<ListReceiptItem> receiptItemList;
    ListReceiptItem listReceiptItem;
    ReceiptItemAdapter adapter;
    public String itemType, itemQty, itemPrice, itemDate, itemInvoice, lastInvoice, qrResult;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_create_receipt);
        ButterKnife.bind(this);


        receiptItemList = new ArrayList<>();
        recyclerView.setHasFixedSize(true);
        recyclerView.setLayoutManager(new LinearLayoutManager(this));
        adapter = new ReceiptItemAdapter(this, receiptItemList);
        recyclerView.setAdapter(adapter);
        itemInvoice = invoiceNumber.getText().toString();
        itemDate = setDate(date);
        date.setText(this.getString(R.string.date, setDate(date)));

        printItem.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                DialogInterface.OnClickListener dialogClickListener = new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        switch (which) {
                            case DialogInterface.BUTTON_POSITIVE:
                                pbloading.setVisibility(View.VISIBLE);
                                cutStock();
                                break;

                            case DialogInterface.BUTTON_NEGATIVE:
                                //No button clicked
                                break;
                        }
                    }
                };

                AlertDialog.Builder builder = new AlertDialog.Builder(CreateReceiptActivity.this);
                builder.setMessage("Print Transaksi ?").setPositiveButton("Ya", dialogClickListener)
                        .setNegativeButton("Tidak", dialogClickListener).show();

            }
        });


        addItem.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                LayoutInflater li = CreateReceiptActivity.this.getLayoutInflater();

                final View v = li.inflate(R.layout.alertdialog_create_receipt, null);
                final AlertDialog.Builder builder = new AlertDialog.Builder(CreateReceiptActivity.this);
                builder.setView(v);
                final EditText addItemType = v.findViewById(R.id.alertdialog_receipt_type);
                final EditText addItemQty = v.findViewById(R.id.alertdialog_receipt_qty);
                final EditText addItemPrice = v.findViewById(R.id.alertdialog_receipt_price);
                Button btnSubmit = v.findViewById(R.id.alertdialog_receipt_submit);
                addItemType.setText(qrResult);

                final AlertDialog alertDialog = builder.create();
                alertDialog.setOnShowListener(new DialogInterface.OnShowListener() {
                    @Override
                    public void onShow(DialogInterface dialog) {

                        Button btnScan = v.findViewById(R.id.alertdialog_receipt_scanqr);
                        btnScan.setOnClickListener(new View.OnClickListener() {
                            @Override
                            public void onClick(View v) {
                                Intent i = new Intent(CreateReceiptActivity.this, QRScannerActivity.class);
                                startActivityForResult(i, QR_REQUEST_CODE);
                                alertDialog.dismiss();
                                finish();
                            }
                        });
                    }
                });
                alertDialog.show();
                btnSubmit.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View view) {

                        itemType = addItemType.getText().toString().trim();
                        itemQty = addItemQty.getText().toString().trim();
                        itemPrice = addItemPrice.getText().toString().trim();
                        listReceiptItem = new ListReceiptItem(itemType, itemQty, itemPrice, "0");
                        receiptItemList.add(listReceiptItem);
                        recyclerView.setAdapter(adapter);
                        adapter.notifyDataSetChanged();
                        alertDialog.dismiss();
                        Toast.makeText(CreateReceiptActivity.this, "barang tertambah", Toast.LENGTH_SHORT).show();
                    }
                });
            }
        });
        Bundle extras = getIntent().getExtras();
        if(extras != null && extras .containsKey("QRItemtype")){
            qrResult = extras.getString("QRItemtype");
            if (qrResult == null) {
                Toast.makeText(this, "Scan gagal", Toast.LENGTH_SHORT).show();
            } else if (!(qrResult == null)) {
                Toast.makeText(this, qrResult, Toast.LENGTH_SHORT).show();

            }
        }
    }

    private void cutStock() {
        final FirebaseFirestore db = FirebaseFirestore.getInstance();

        for (ListReceiptItem listreceiptItem : receiptItemList) {
            final String soldItemDate = date.getText().toString().trim();
            final String soldItemInvoice = invoiceNumber.getText().toString().trim();
            final String soldItemtype = listreceiptItem.getType();
            final String soldItemQty = listreceiptItem.getQty();
            final String soldItemPrice = listreceiptItem.getPrice();

            db.collection("watchlist").whereEqualTo("type", soldItemtype)
                    .get().addOnCompleteListener(new OnCompleteListener<QuerySnapshot>() {
                @Override
                public void onComplete(@NonNull Task<QuerySnapshot> task) {
                    if (task.isSuccessful()) {
                        for (QueryDocumentSnapshot document : task.getResult()) {
                            Log.d(Tag.ITEM, document.getId() + "=>" + document.getData());

                            String id = document.getString("id");
                            String oldqty = document.getString("qty");
                            Integer i = Integer.parseInt(oldqty) - Integer.parseInt(soldItemQty);
                            String newQty = String.valueOf(i);

                            Map<Object, String> map = new HashMap<>();
                            map.put("qty", newQty);
                            db.collection("watchlist").document(document.getId()).set(map, SetOptions.merge());

                            ArrayList<Map<String, Object>> list = new ArrayList<>();
                            Map<String, Object> receiptItem = new HashMap<>();
                            receiptItem.put("invoice", soldItemInvoice);
                            list.add(receiptItem);
                            receiptItem.put("date", soldItemDate);
                            list.add(receiptItem);
                            receiptItem.put("type", soldItemtype);
                            list.add(receiptItem);
                            receiptItem.put("qty", soldItemQty);
                            list.add(receiptItem);
                            receiptItem.put("price", soldItemPrice);
                            list.add(receiptItem);


                            final FirebaseFirestore firebaseFirestore = FirebaseFirestore.getInstance();
                            firebaseFirestore.collection("sales").add(receiptItem).addOnSuccessListener(new OnSuccessListener<DocumentReference>() {
                                @Override
                                public void onSuccess(DocumentReference documentReference) {
                                    Toast.makeText(CreateReceiptActivity.this, "Berhasil mencetak transaksi", Toast.LENGTH_SHORT).show();
                                    Integer i = Integer.parseInt(soldItemInvoice) + 1;
                                    String newInvoice = String.valueOf(i);
                                    invoiceNumber.setText(newInvoice);
                                    pbloading.setVisibility(View.GONE);

                                }
                            })
                                    .addOnFailureListener(new OnFailureListener() {
                                        @Override
                                        public void onFailure(@NonNull Exception e) {
                                            Toast.makeText(CreateReceiptActivity.this, "Gagal mencetak", Toast.LENGTH_SHORT).show();
                                            pbloading.setVisibility(View.GONE);
                                        }
                                    });
                        }
                    } else {
                        Toast.makeText(CreateReceiptActivity.this, "Barang tidak terdaftar", Toast.LENGTH_SHORT).show();
                        Log.w(Tag.ITEM, "error getting documents", task.getException());
                        pbloading.setVisibility(View.GONE);
                    }
                }
            }).addOnFailureListener(new OnFailureListener() {
                @Override
                public void onFailure(@NonNull Exception e) {
                    Toast.makeText(CreateReceiptActivity.this, "Barang tidak terdaftar", Toast.LENGTH_SHORT).show();
                    pbloading.setVisibility(View.GONE);
                }
            });
        }
    }

    public void getTypeList() {

        FirebaseFirestore db = FirebaseFirestore.getInstance();
        CollectionReference documentReference = db.collection("watchlist");
        documentReference.get()
                .addOnCompleteListener(new OnCompleteListener<QuerySnapshot>() {
                    @Override
                    public void onComplete(@NonNull Task<QuerySnapshot> task) {
                        if (task.isSuccessful()) {
                            for (QueryDocumentSnapshot document : task.getResult()) {
                                Log.d(Tag.ITEM, document.getId() + "=>" + document.getData());

                                String type = document.getString("type");
                                listAutoComplete = new ListAutoComplete(type);
                                autoCompleteList.add(listAutoComplete);
                            }

                        } else {
                            Log.w(Tag.ITEM, "error getting documents", task.getException());
                        }
                    }
                });
    }

    public String setDate(TextView view) {

        java.util.Date today = Calendar.getInstance().getTime();//getting date
        SimpleDateFormat formatter = new SimpleDateFormat("dd-MM-yyyy");//formating according to my need
        String date = formatter.format(today);
        view.setText(date);
        return date;
    }

}

4 个答案:

答案 0 :(得分:1)

单击QR按钮后,您将调用alertDialog.dismiss()和finish()。 自然,这将关闭警报对话框。

要么删除这两个调用,要么在OnResume方法中再次打开对话框。

 @Override
    protected void onResume() {
        super.onResume();
openDialog();
    }

private void openDialog(){
final AlertDialog alertDialog = builder.create();
                alertDialog.setOnShowListener(new DialogInterface.OnShowListener() {
                    @Override
                    public void onShow(DialogInterface dialog) {

                        Button btnScan = v.findViewById(R.id.alertdialog_receipt_scanqr);
                        btnScan.setOnClickListener(new View.OnClickListener() {
                            @Override
                            public void onClick(View v) {
                                Intent i = new Intent(CreateReceiptActivity.this, QRScannerActivity.class);
                                startActivityForResult(i, QR_REQUEST_CODE);

                            }
                        });
                    }
                });
                alertDialog.show(); 

}

如果您不希望在最小化并返回时弹出警报,则可以

   if(getIntent() != null){
        isReturnedFromActivity = getIntent.getBooleanExtra(IS_RETURNED_FROM_ACTIVITY ,false);
        if(isReturnedFromActivity){
            openDialog();
        }
    }
}

当然,在调用此活动时,请将IS_RETURNED_FROM_ACTIVITY键设置为True。

答案 1 :(得分:0)

您正在btnScan.setOnClickListener中关闭警报对话框。所以请删除 “ alertDialog.dismiss();”从那里并删除finish()方法也如下:

final AlertDialog alertDialog = builder.create();
                alertDialog.setOnShowListener(new DialogInterface.OnShowListener() {
                    @Override
                    public void onShow(DialogInterface dialog) {

                        Button btnScan = v.findViewById(R.id.alertdialog_receipt_scanqr);
                        btnScan.setOnClickListener(new View.OnClickListener() {
                            @Override
                            public void onClick(View v) {
                                Intent i = new Intent(CreateReceiptActivity.this, QRScannerActivity.class);
                                startActivityForResult(i, QR_REQUEST_CODE);

                            }
                        });
                    }
                });
                alertDialog.show(); 

答案 2 :(得分:0)

我看到您的addItem单击监听器是调用该对话框显示的内容,所以为什么不单击该按钮以显示该对话框:

//in your QR activity intent :
Intent intent = new Intent(CONTEXT, ACTIVITY.class);
intent.putExtra("FLAG", "showDialog");
startActivity(intent);'

//when you return to your activity check your flag and
// if it is good you will have to show your dialog again

String flag = getIntent().getStringExtra("FLAG");
if(flag == "showDialog"){
     addItem.performClick();
}

答案 3 :(得分:0)

AlertDialog.Builder builder = new AlertDialog.Builder(this);
    builder.setMessage("Do you want to clean?")
      .setPositiveButton("Yes", new DialogInterface.OnClickListener()
      {
        public void onClick(DialogInterface dialog, int id)
        {
          dialog.dismiss();
          ((ActivityName) appContext).onResume();
        }
      })
      .setNegativeButton("No", new DialogInterface.OnClickListener()
      {
        public void onClick(DialogInterface dialog, int id)
        {
          dialog.dismiss();``
        }
      });
    builder.create().show();
}