Question

在我的片段中，我想显示一个对话框，以在调用另一个函数并移至另一个活动之前插入一些数据，但是该对话框一直被自动关闭，并且在dialog.show（）之后的下一行代码是否被调用我是否完成对话。这是我的对话框的代码：

package com.technion.doggyguide;

import android.app.Dialog;
import android.content.Context;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

import androidx.fragment.app.DialogFragment;

import com.technion.doggyguide.R;


import javax.annotation.Nullable;

public class GoogleSignInDialog extends DialogFragment {
private static final String TAG = "GOOGLE DIALOG";

public interface OnInputListener {
    void sendInput(String dogname, String dogbreed);
}

public OnInputListener mOnInputListener;

private EditText mDogName, mDogBreed;
private TextView mSet, mCancel;

@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.dialog_google_sign_in, container, false);
    mDogBreed = view.findViewById(R.id.input_breed);
    mDogName = view.findViewById(R.id.input_name);
    mSet = view.findViewById(R.id.action_ok);
    mCancel = view.findViewById(R.id.action_cancel);

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

    mSet.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            String dogname = mDogName.getText().toString();
            String dogbreed = mDogBreed.getText().toString();
            if (dogname.isEmpty() || dogbreed.isEmpty()) {
                Toast.makeText(getContext(),
                        "Please enter the name and breed of your dog" ,Toast.LENGTH_LONG).show();
                return;
            }
            mOnInputListener.sendInput(dogname, dogbreed);
            getDialog().dismiss();
        }
    });
    return view;
}

@Override
public void onAttach(Context context) {
    super.onAttach(context);
    try {
        mOnInputListener = (OnInputListener) getTargetFragment();
    } catch (ClassCastException e) {
        Log.d(TAG, e.getMessage());
    }
}
}

这是我的片段的代码：

private void signIWithGoogle(final GoogleSignInAccount account) {
    Log.d("TAG", "firebaseAuthWithGoogle:" + account.getId());
    final AuthCredential credential = GoogleAuthProvider.getCredential(account.getIdToken(), null);
    final CollectionReference dogowners = db.collection("dog owners");
    dogowners.whereEqualTo("email", account.getEmail())
            .get()
            .addOnCompleteListener(new OnCompleteListener<QuerySnapshot>() {
                @Override
                public void onComplete(@NonNull Task<QuerySnapshot> task) {
                    List<DocumentSnapshot> docs = task.getResult().getDocuments();
                    if (docs.isEmpty()) {
                        GoogleSignInDialog dialog = new GoogleSignInDialog();
                        dialog.setTargetFragment(DogOwnerConnectionFragment.this, 1);
                        dialog.show(getFragmentManager(), "MyCustomDialog");
                        firstGoogleSignIn(credential, account);
                    } else if (docs.size() == 1) {
                        GoogleSignIn(credential, account);
                    }
                }
            });
}

真正的问题是如何在完成对话框之前停止运行代码？

Answer 1

首先：让您的Fragment实现OnInputListener并覆盖功能

第二个：创建对话框后的setListener

GoogleSignInDialog dialog = new GoogleSignInDialog();
dialog.setListener(this);
.
.

GoogleSignInDialog

void setListener(OnInputListener listener){

    mOnInputListener = listener;
}

然后，您可以使用此接口回调片段，然后在关闭对话框之前执行某些操作

mCancel.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {

        listener.doSomething()//do anything you want

        getDialog().dismiss();
    }
});

希望这会有所帮助。

为什么我的“对话”在完成之前会被关闭？

1 个答案: