Question

我正在使用Android Studio和Firebase。我运行模拟器时代码没有创建新用户。程序卡在progressDialog“注册请等待”。我可以在Firebase中手动添加用户。我在Firebase控制台中启用了电子邮件/密码auth，但仍然存在

这是 MainActivity.java 文件。

package com.example.application.firebaseauthdemo;

import android.app.ProgressDialog;
import android.support.annotation.NonNull;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.Task;
import com.google.firebase.auth.AuthResult;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.auth.FirebaseUser;

public class MainActivity extends AppCompatActivity implements View.OnClickListener {

    //defining view objects
    private EditText editTextEmail;
    private EditText editTextPassword;
    private Button buttonSignup;
    private ProgressDialog progressDialog;


    //defining firebaseauth object
    private FirebaseAuth firebaseAuth;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        //initializing firebase auth object
        firebaseAuth = FirebaseAuth.getInstance();

        //initializing views
        editTextEmail = (EditText) findViewById(R.id.editTextEmail);
        editTextPassword = (EditText) findViewById(R.id.editTextPassword);

        buttonSignup = (Button) findViewById(R.id.buttonSignup);

        progressDialog = new ProgressDialog(this);

        //attaching listener to button
        buttonSignup.setOnClickListener(this);
    }

    private void registerUser(){

        //getting email and password from edit texts
        String email = editTextEmail.getText().toString().trim();
        String password  = editTextPassword.getText().toString().trim();

        //checking if email and passwords are empty
        if(TextUtils.isEmpty(email)){
            Toast.makeText(this,"Please enter email",Toast.LENGTH_LONG).show();
            return;
        }

        if(TextUtils.isEmpty(password)){
            Toast.makeText(this,"Please enter password",Toast.LENGTH_LONG).show();
            return;
        }

        //if the email and password are not empty
        //displaying a progress dialog

        progressDialog.setMessage("Registering Please Wait...");
        progressDialog.show();

        //creating a new user
        firebaseAuth.createUserWithEmailAndPassword(email, password)
                .addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
                    @Override
                    public void onComplete(@NonNull Task<AuthResult> task) {
                        //checking if success
                        if(task.isSuccessful()){
                            //display some message here
                            FirebaseUser user = firebaseAuth.getCurrentUser();
                            Toast.makeText(MainActivity.this,"Successfully registered",Toast.LENGTH_LONG).show();
                        }else{
                            //display some message here
                            Toast.makeText(MainActivity.this,"Registration Error",Toast.LENGTH_LONG).show();
                        }
                        progressDialog.dismiss();
                    }
                });

    }

    @Override
    public void onClick(View view) {
        //calling register method on click
        registerUser();
    }
}

（2） Project（build.gradle）文件..我已经添加了classpath。

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.3.3'
        classpath 'com.google.gms:google-services:3.1.0'
        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        jcenter()
        maven {
            url "https://maven.google.com" // Google's Maven repository
        }
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

（3） App（ build.gradle ）文件...在这里，我添加了所有firebase依赖项。

apply plugin: 'com.android.application'

android
        {
    compileSdkVersion 26
    buildToolsVersion "26.0.1"
    defaultConfig
            {
        applicationId "com.example.application.firebaseauthdemo"
        minSdkVersion 15
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    compile 'com.android.support:appcompat-v7:26.1.0'
    compile 'com.android.support:animated-vector-drawable:26.1.0'
    compile 'com.android.support:mediarouter-v7:26.1.0'
    compile 'com.google.android.gms:play-services:11.0.4'

    compile 'com.android.support.constraint:constraint-layout:1.0.2'
    compile 'com.google.firebase:firebase-auth:11.0.4'
    compile 'com.google.firebase:firebase-core:11.0.4'
    compile 'com.google.firebase:firebase-crash:11.0.4'
    compile 'com.google.firebase:firebase-messaging:11.0.4'
    compile 'com.google.android.gms:play-services-maps:11.0.4'
    compile 'com.google.android.gms:play-services-location:11.0.4'
    testCompile 'junit:junit:4.12'

}
apply plugin: 'com.google.gms.google-services'

我添加了所有必需的依赖项。另外，添加了与Firebase中相同的类路径。另外，我清理了项目并rebuild。但问题仍然无法解决。此外，我已在Firebase控制台中启用了电子邮件/密码身份验证。该应用仍然卡在progressDialog上，用户无法在Firebase auth中注册。

Answer 1

您应该为加载的工作创建AsyncTask。

例如：

AsyncTask<String, String, String> asyncTask = new AsyncTask() {
            @Override
            protected void onPreExecute() {
                super.onPreExecute();
                progressDialog.setMessage("Registering Please Wait...");
                progressDialog.show();
            }

            @Override
            protected Object doInBackground(Object[] params) {
                firebaseAuth.createUserWithEmailAndPassword(email, password)
                .addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
                    @Override
                    public void onComplete(@NonNull Task<AuthResult> task) {
                        //checking if success
                        if(task.isSuccessful()){
                            //display some message here
                            FirebaseUser user = firebaseAuth.getCurrentUser();
                            Toast.makeText(MainActivity.this,"Successfully registered",Toast.LENGTH_LONG).show();
                        }else{
                            //display some message here
                            Toast.makeText(MainActivity.this,"Registration Error",Toast.LENGTH_LONG).show();
                        }

                    }
                });
                return null;
            }

            @Override
            protected void onPostExecute(Object o) {
                super.onPostExecute(o);
                progressDialog.dismiss();
            }
        };
        asyncTask.execute();

Answer 2

您应该添加 addOnFailureListener 以检查失败的内容，因为永远不会调用 addOnCompleteListener 。< / p>

//creating a new user
    firebaseAuth.createUserWithEmailAndPassword(email, password)
            .addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
                @Override
                public void onComplete(@NonNull Task<AuthResult> task) {
                    // YOUR CODE
                }
            })
            .addOnFailureListener(this, new OnFailureListener() {
                @Override
                public void onFailure(@NonNull Exception e) {
                    Toast.makeText(MainActivity.this, e.getMessage(), Toast.LENGTH_SHORT).show();
            }
        });

程序停留在ProgressDialog

2 个答案: