我试图使一个项目与Firebase登录和注册,我现在尝试使注册活动,我在这里附上代码:
import android.content.Intent
import android.support.v7.app.AppCompatActivity
import android.os.Bundle
import android.text.TextUtils
import android.view.View
import android.widget.EditText
import android.widget.ProgressBar
import android.widget.Toast
import com.google.firebase.auth.FirebaseAuth
import com.google.firebase.auth.FirebaseUser
import com.google.firebase.database.DatabaseReference
import com.google.firebase.database.FirebaseDatabase
class RegisterActivity : AppCompatActivity() {
private lateinit var txtName:EditText
private lateinit var txtLastName:EditText
private lateinit var txtEmail:EditText
private lateinit var txtPassword:EditText
private lateinit var progressBar:ProgressBar
private lateinit var dbReference:DatabaseReference
private lateinit var database:FirebaseDatabase
private lateinit var auth:FirebaseAuth
override fun onCreate(savedInstanceState: Bundle?){
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_register)
txtName=findViewById(R.id.txtName)
txtLastName=findViewById(R.id.txtLastName)
txtEmail=findViewById(R.id.txtEmail)
txtPassword=findViewById(R.id.txtPassword)
progressBar=findViewById(R.id.progressBar)
database= FirebaseDatabase.getInstance()
auth= FirebaseAuth.getInstance()
dbReference=database.reference.child("Usuarios")
}
fun registrarse(view:View){
createNewAccount()
}
fun login(view:View) {
startActivity(Intent(this,LoginActivity::class.java))
}
private fun createNewAccount(){
val name:String=txtName.text.toString()
val lastName:String=txtLastName.text.toString()
val email:String=txtEmail.text.toString()
val password:String=txtPassword.text.toString()
if(!TextUtils.isEmpty(name) && !TextUtils.isEmpty(lastName) && !TextUtils.isEmpty(email) && !TextUtils.isEmpty(password)){
progressBar.visibility=View.VISIBLE
auth.createUserWithEmailAndPassword(email,password)
?.addOnCompleteListener(this){
task ->
if(task.isComplete){
val user:FirebaseUser?=auth.currentUser
verifyEmail(user)
val userBD=dbReference.child(user?.uid)
userBD.child("Nombre").setValue(name)
userBD.child("Apellidos").setValue(lastName)
userBD.child("Correo electrónico").setValue(email)
action()
}
}
}
}
private fun verifyEmail(user:FirebaseUser?){
user?.sendEmailVerification()
?.addOnCompleteListener(this){
task ->
if(task.isComplete){
Toast.makeText(this, "Correo de verificación enviado.",Toast.LENGTH_LONG).show()
}
else{
Toast.makeText(this, "Error al enviar el correo de verificación.",Toast.LENGTH_LONG).show()
}
}
}
private fun action(){
startActivity(Intent(this,LoginActivity::class.java))
}
}
当我按下按钮"registrarse"时,应用程序崩溃...我的Gradle文件(应用程序)如下所示:
apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
android {
compileSdkVersion 26
defaultConfig {
applicationId "com.example.uburr.hastalos"
minSdkVersion 24
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 {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
implementation 'com.android.support:appcompat-v7:26.1.0'
implementation 'com.android.support.constraint:constraint-layout:1.0.2'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.1'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
implementation 'com.google.firebase:firebase-core:12.0.1'
implementation 'com.google.firebase:firebase-database:12.0.1'
implementation 'com.google.firebase:firebase-auth:12.0.1'
implementation 'com.google.firebase:firebase-storage:12.0.1'
implementation 'com.google.firebase:firebase-messaging:12.0.1'
}
apply plugin: 'com.google.gms.google-services'
编译器没有显示任何错误。我是新来的,所以我真的不知道如何修复这个...我正在努力学习,我想这个论坛会帮助我,我会非常感谢每个人试图帮助。
03 - 30 17:23:03.636 12627 - 12627/com.示例. uburr. hastalos E/安卓系统运行时间:致命异常:主要工艺:com.示例.下. hastalos,PID:12627 java. lang.空指针异常:无法为以下位置的child()中的参数"pathString"传递空值:com. google. firebase. database.数据库引用. child(未知来源),网址为com. example. uburr. hastalos. RegisterActivity$createNewAccount$1.onComplete(注册活动. kt:69),网址为www.example. com(未知来源),网址为android. os。处理程序. handleCallback(处理程序. java:751),网址为android. os。处理程序. dispatchMessage(处理程序. java:95),网址为android. app。活动线程. main(活动线程. java:6119),网址为java. lang. reflect. Method。调用(本地方法),网址为com. android. internal. os. ZygoteInit $com.google.android.gms.tasks.zzf.run出队缓冲区: www.example.com 退出队列缓冲区失败03 - 30 17:23:14.793 12627 - 12733/com.示例. uburr. hastalos W/OpenGL渲染器:swapBuffers在0x7f6b9f2380上遇到EGL错误12301,正在停止呈现... dequeueBuffer failed 03-30 17:23:14.789 12627-12733/com.example.uburr.hastalos I/Adreno: DequeueBuffer: dequeueBuffer failed 03-30 17:23:14.793 12627-12733/com.example.uburr.hastalos W/OpenGLRenderer: swapBuffers encountered EGL error 12301 on 0x7f6b9f2380, halting rendering...
谢谢你米格尔·安吉尔。
2条答案
按热度按时间a0zr77ik1#
问题就出在这里,您正在检查任务是否完成,然后尝试访问用户,但如果任务不成功,则用户将为空:
相反,您应该检查任务是否成功,然后对其执行操作:
7qhs6swi2#
您需要添加gradle(:app)〉依赖项
实现'com.google.firebase:防火墙-授权-ktx'