如何将数据从 return activity 传递到上一个 activity 中的对话框？

Question

访客详情

我在访客 Activity 中有一个对话框。当我单击该图标时，它将重定向到相机 Activity。然后当点击 Camera Activity 中的 Confirm 按钮时，它会将 intent 发送回上一个 Activity，即 Visitor Activity。问题是我应该如何将 Camera Activity 的意图结果传递回 Visitor Activity 中的对话框。意图数据应放在 Pass No Edit Text 中。我使用的 material 对话框没有附加到该对话框的任何片段。全部放在Visitor Activity中。有人可以帮帮我吗？谢谢！

private void checkin()
{
    final MaterialDialog dialog = new MaterialDialog.Builder(VisitorDetailActivity.this)
            .customView(R.layout.sample,false)
            .build();

    View view = dialog.getCustomView();
    final EditText etPassNo = (EditText) view.findViewById(R.id.etPassNo);
    final EditText etVehicleNo = (EditText) view.findViewById(R.id.etVehicleNo);
    final ImageView ivScanCode = (ImageView) view.findViewById(R.id.ivScanCode);
    final TextView tvCancel = (TextView) view.findViewById(R.id.tvCancel);
    final TextView tvSubmit = (TextView) view.findViewById(R.id.tvSubmit);

    etVehicleNo.setText(model.getFldVehicleNo());

    if(barCode != null)
    {
        etPassNo.setText(barCode);
    }

    ivScanCode.setOnClickListener(new View.OnClickListener()
    {
        @Override
        public void onClick(View v)
        {
            //Toast.makeText(VisitorDetailActivity.this, "Bar code scanner", Toast.LENGTH_SHORT).show();
            Intent i = new Intent(VisitorDetailActivity.this, ScanCodeActivity.class);
            startActivityForResult(i,97);
        }
    });

    tvCancel.setOnClickListener(new View.OnClickListener()
    {
        @Override
        public void onClick(View v)
        {
            dialog.dismiss();
        }
    });

    tvSubmit.setOnClickListener(new View.OnClickListener()
    {
        @Override
        public void onClick(View v)
        {
            if(etPassNo.getText().toString().trim().isEmpty())
            {
                Toast.makeText(VisitorDetailActivity.this, "Pass No is required", Toast.LENGTH_SHORT).show();
                return;
            }
            if(selImage == null)
            {
                proceedCheckin(etPassNo.getText().toString(), etVehicleNo.getText().toString());
            }
            else
            {
                proceedCheckinImage(etPassNo.getText().toString(), etVehicleNo.getText().toString());
            }
        }
    });

    dialog.show();
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
    super.onActivityResult(requestCode, resultCode, data);

    if(requestCode == 98 && resultCode == RESULT_OK)
    {
        selImage = data.getStringExtra("photo");

        Glide.with(VisitorDetailActivity.this).load(selImage).into(iDrivingLicense);

    }
    else if (requestCode == 99 && resultCode == RESULT_OK)
    {
        selImage = data.getStringExtra("photo");

        Glide.with(VisitorDetailActivity.this).load(selImage).into(iDrivingLicense);
    }
    else if(requestCode == 97 && resultCode == RESULT_OK)
    {
        barCode = data.getStringExtra("barCode");
    }
}

Answer 1

首先，您需要从 checkIn 方法

中全局获取视图对象

View view;
view = dialog.getCustomView();
final EditText etPassNo = (EditText) view.findViewById(R.id.etPassNo);

现在在您的 onActivityResult 方法下，我可以看到您已经在那里获得条形码，所以只需再次启动 EditText 对象，只需在其中设置数据即可。

barCode = data.getStringExtra("barCode");
EditText etPassNo = (EditText) view.findViewById(R.id.etPassNo); 
etPassNo.setText(barCode);

如果可行，请告诉我。

Answer 2

您可以使用界面

public interface OnBarcodeSelect{
    void onBarcodeSelected(String barcode);}
OnBarcodeSelect onBarcodeSelect;
private void checkin()
{
    final MaterialDialog dialog = new MaterialDialog.Builder(VisitorDetailActivity.this)
            .customView(R.layout.sample,false)
            .build();

    View view = dialog.getCustomView();
    final EditText etPassNo = (EditText) view.findViewById(R.id.etPassNo);
    final EditText etVehicleNo = (EditText) view.findViewById(R.id.etVehicleNo);
    final ImageView ivScanCode = (ImageView) view.findViewById(R.id.ivScanCode);
    final TextView tvCancel = (TextView) view.findViewById(R.id.tvCancel);
    final TextView tvSubmit = (TextView) view.findViewById(R.id.tvSubmit);

    etVehicleNo.setText(model.getFldVehicleNo());

    if(barCode != null)
    {
        etPassNo.setText(barCode);
    }

    ivScanCode.setOnClickListener(new View.OnClickListener()
    {
        @Override
        public void onClick(View v)
        {
            //Toast.makeText(VisitorDetailActivity.this, "Bar code scanner", Toast.LENGTH_SHORT).show();
            Intent i = new Intent(VisitorDetailActivity.this, ScanCodeActivity.class);
            onBarcodeSelect = new OnBarcodeSelect() {
                @Override
                public void onBarcodeSelected(String barcode) {
                    //handle barcode here
                    etPassNo.setText(barcode);
                }
            }
            startActivityForResult(i,97);
        }
    });

    tvCancel.setOnClickListener(new View.OnClickListener()
    {
        @Override
        public void onClick(View v)
        {
            dialog.dismiss();
        }
    });

    tvSubmit.setOnClickListener(new View.OnClickListener()
    {
        @Override
        public void onClick(View v)
        {
            if(etPassNo.getText().toString().trim().isEmpty())
            {
                Toast.makeText(VisitorDetailActivity.this, "Pass No is required", Toast.LENGTH_SHORT).show();
                return;
            }
            if(selImage == null)
            {
                proceedCheckin(etPassNo.getText().toString(), etVehicleNo.getText().toString());
            }
            else
            {
                proceedCheckinImage(etPassNo.getText().toString(), etVehicleNo.getText().toString());
            }
        }
    });

    dialog.show();
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
    super.onActivityResult(requestCode, resultCode, data);

    if(requestCode == 98 && resultCode == RESULT_OK)
    {
        selImage = data.getStringExtra("photo");

        Glide.with(VisitorDetailActivity.this).load(selImage).into(iDrivingLicense);

    }
    else if (requestCode == 99 && resultCode == RESULT_OK)
    {
        selImage = data.getStringExtra("photo");

        Glide.with(VisitorDetailActivity.this).load(selImage).into(iDrivingLicense);
    }
    else if(requestCode == 97 && resultCode == RESULT_OK)
    {
        barCode = data.getStringExtra("barCode");
        if(onBarcodeSelect != null){
            onBarcodeSelect.onBarcodeSelected(barCode);
        }
    }
}

如何将数据从 return activity 传递到上一个 activity 中的对话框？

How to pass data from return activity to dialog in previous activity?

java

android

onactivityresult

material-dialog