我正在为我的应用进行用户注册和登录。在注册期间，我从FireBase数据库中获取Departments和Designations，在注册时，我将用户详细信息存储在Database中。但我无法从我的模拟器上的数据库中获取部门和指定，但它似乎在物理设备上正常工作。 我得到以下错误日志。
07-14 19:23:35.834 14256-14256/? E/memtrack: Couldn't load memtrack module (No such file or directory)
07-14 19:23:35.834 14256-14256/? E/android.os.Debug: failed to load memtrack module: -2
07-14 19:23:36.363 14271-14271/? E/memtrack: Couldn't load memtrack module (No such file or directory)
07-14 19:23:36.363 14271-14271/? E/android.os.Debug: failed to load memtrack module: -2
07-14 19:23:40.593 14283-14283/? E/memtrack: Couldn't load memtrack module (No such file or directory)
07-14 19:23:40.593 14283-14283/? E/android.os.Debug: failed to load memtrack module: -2
07-14 19:23:40.601 14281-14281/? E/memtrack: Couldn't load memtrack module (No such file or directory)
07-14 19:23:40.601 14281-14281/? E/android.os.Debug: failed to load memtrack module: -2
07-14 19:23:40.629 14281-14300/? E/art: Thread attaching while runtime is shutting down: Binder_1
07-14 19:23:40.869 14298-14298/? E/memtrack: Couldn't load memtrack module (No such file or directory)
07-14 19:23:40.869 14298-14298/? E/android.os.Debug: failed to load memtrack module: -2
07-14 19:23:41.256 14310-14310/? E/memtrack: Couldn't load memtrack module (No such file or directory)
07-14 19:23:41.256 14310-14310/? E/android.os.Debug: failed to load memtrack module: -2
07-14 19:23:41.515 14321-14321/? E/memtrack: Couldn't load memtrack module (No such file or directory)
07-14 19:23:41.515 14321-14321/? E/android.os.Debug: failed to load memtrack module: -2
07-14 19:23:42.377 1332-1332/? E/installd: Couldn't opendir /data/app/vmdl651364592.tmp: No such file or directory
07-14 19:23:42.508 1907-3373/com.google.android.gms.persistent E/NetworkScheduler.SR: Invalid parameter app
07-14 19:23:42.508 1907-3373/com.google.android.gms.persistent E/NetworkScheduler.SR: Invalid package name : Perhaps you didn't include a PendingIntent in the extras?
07-14 19:23:42.772 1907-3373/com.google.android.gms.persistent E/NetworkScheduler.SR: Invalid parameter app
07-14 19:23:42.772 1907-3373/com.google.android.gms.persistent E/NetworkScheduler.SR: Invalid package name : Perhaps you didn't include a PendingIntent in the extras?
07-14 19:23:42.964 14355-14355/? E/memtrack: Couldn't load memtrack module (No such file or directory)
07-14 19:23:42.964 14355-14355/? E/android.os.Debug: failed to load memtrack module: -2
07-14 19:23:43.032 14377-14377/? E/dex2oat: Failed to create oat file: /data/dalvik-cache/x86/data@app@apkcrew.teststationary-1@split_lib_dependencies_apk.apk@classes.dex: Permission denied
07-14 19:23:43.081 1934-2205/com.android.launcher3 E/Surface: getSlotFromBufferLocked: unknown buffer: 0xaaae6960
07-14 19:23:43.208 14379-14379/? E/dex2oat: Failed to create oat file: /data/dalvik-cache/x86/data@app@apkcrew.teststationary-1@split_lib_slice_0_apk.apk@classes.dex: Permission denied
07-14 19:23:43.225 14381-14381/? E/dex2oat: Failed to create oat file: /data/dalvik-cache/x86/data@app@apkcrew.teststationary-1@split_lib_slice_1_apk.apk@classes.dex: Permission denied
07-14 19:23:43.239 14385-14385/? E/dex2oat: Failed to create oat file: /data/dalvik-cache/x86/data@app@apkcrew.teststationary-1@split_lib_slice_2_apk.apk@classes.dex: Permission denied
07-14 19:23:43.256 14387-14387/? E/dex2oat: Failed to create oat file: /data/dalvik-cache/x86/data@app@apkcrew.teststationary-1@split_lib_slice_3_apk.apk@classes.dex: Permission denied
07-14 19:23:43.284 14391-14391/? E/dex2oat: Failed to create oat file: /data/dalvik-cache/x86/data@app@apkcrew.teststationary-1@split_lib_slice_4_apk.apk@classes.dex: Permission denied
07-14 19:23:43.312 14393-14393/? E/dex2oat: Failed to create oat file: /data/dalvik-cache/x86/data@app@apkcrew.teststationary-1@split_lib_slice_5_apk.apk@classes.dex: Permission denied
07-14 19:23:43.337 14395-14395/? E/dex2oat: Failed to create oat file: /data/dalvik-cache/x86/data@app@apkcrew.teststationary-1@split_lib_slice_6_apk.apk@classes.dex: Permission denied
07-14 19:23:43.359 14397-14397/? E/dex2oat: Failed to create oat file: /data/dalvik-cache/x86/data@app@apkcrew.teststationary-1@split_lib_slice_7_apk.apk@classes.dex: Permission denied
07-14 19:23:43.377 14399-14399/? E/dex2oat: Failed to create oat file: /data/dalvik-cache/x86/data@app@apkcrew.teststationary-1@split_lib_slice_8_apk.apk@classes.dex: Permission denied
07-14 19:23:43.392 14401-14401/? E/dex2oat: Failed to create oat file: /data/dalvik-cache/x86/data@app@apkcrew.teststationary-1@split_lib_slice_9_apk.apk@classes.dex: Permission denied
07-14 19:23:43.953 1244-1307/? E/SurfaceFlinger: ro.sf.lcd_density must be defined as a build property
07-14 19:23:45.589 2419-3356/com.google.android.gms E/Volley: [270] BasicNetwork.performRequest: Unexpected response code 400
07-14 19:23:46.645 2419-3358/com.google.android.gms E/Volley: [272] BasicNetwork.performRequest: Unexpected response code 400
07-14 19:23:47.768 2419-3357/com.google.android.gms E/Volley: [271] BasicNetwork.performRequest: Unexpected response code 400
07-14 19:23:48.207 14364-14411/apkcrew.teststationary E/Surface: getSlotFromBufferLocked: unknown buffer: 0xa3560e60
07-14 19:23:49.046 2419-3359/com.google.android.gms E/Volley: [273] BasicNetwork.performRequest: Unexpected response code 400
07-14 19:23:51.666 2419-3356/com.google.android.gms E/Volley: [270] BasicNetwork.performRequest: Unexpected response code 400
07-14 19:23:54.424 2419-3358/com.google.android.gms E/Volley: [272] BasicNetwork.performRequest: Unexpected response code 400
07-14 19:23:57.856 2419-3357/com.google.android.gms E/Volley: [271] BasicNetwork.performRequest: Unexpected response code 400
07-14 19:24:00.767 2419-3359/com.google.android.gms E/Volley: [273] BasicNetwork.performRequest: Unexpected response code 400
07-14 19:24:07.430 2419-3356/com.google.android.gms E/Volley: [270] BasicNetwork.performRequest: Unexpected response code 400
07-14 19:24:12.981 2419-3358/com.google.android.gms E/Volley: [272] BasicNetwork.performRequest: Unexpected response code 400
07-14 19:24:20.344 2419-3357/com.google.android.gms E/Volley: [271] BasicNetwork.performRequest: Unexpected response code 400
07-14 19:24:28.708 2419-3359/com.google.android.gms E/Volley: [273] BasicNetwork.performRequest: Unexpected response code 400
07-14 19:24:41.736 2419-3356/com.google.android.gms E/Volley: [270] BasicNetwork.performRequest: Unexpected response code 400
07-14 19:25:04.085 2419-3358/com.google.android.gms E/Volley: [272] BasicNetwork.performRequest: Unexpected response code 400
07-14 19:25:18.285 2419-3357/com.google.android.gms E/Volley: [271] BasicNetwork.performRequest: Unexpected response code 400
07-14 19:25:35.675 2419-3359/com.google.android.gms E/Volley: [273] BasicNetwork.performRequest: Unexpected response code 400
07-14 19:25:56.498 2419-3356/com.google.android.gms E/Volley: [270] BasicNetwork.performRequest: Unexpected response code 400
07-14 19:26:11.995 2419-3358/com.google.android.gms E/Volley: [272] BasicNetwork.performRequest: Unexpected response code 400
07-14 19:26:29.679 16849-16849/? E/memtrack: Couldn't load memtrack module (No such file or directory)
07-14 19:26:29.679 16849-16849/? E/android.os.Debug: failed to load memtrack module: -2
07-14 19:26:29.695 1627-1675/system_process E/InputDispatcher: channel '26c07d9 apkcrew.teststationary/apkcrew.teststationary.RegisterActivity (server)' ~ Channel is unrecoverably broken and will be disposed!
07-14 19:26:29.696 1627-1675/system_process E/InputDispatcher: channel '58d303e apkcrew.teststationary/apkcrew.teststationary.LoginActivity (server)' ~ Channel is unrecoverably broken and will be disposed!
07-14 19:26:29.780 16875-16875/? E/dex2oat: Failed to create oat file: /data/dalvik-cache/x86/data@app@apkcrew.teststationary-1@split_lib_dependencies_apk.apk@classes.dex: Permission denied
这是我的Java代码
RegisterActivity Class
package apkcrew.teststationary;
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.text.TextUtils;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.Toast;
import android.util.Log;
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;
import com.google.firebase.database.DataSnapshot;
import com.google.firebase.database.DatabaseError;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import com.google.firebase.database.ValueEventListener;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import android.util.Log;
public class RegisterActivity extends AppCompatActivity{
private EditText username;
private EditText email;
private EditText password;
private Spinner deptspinner;
private Spinner desigspinner;
private Button regbtn;
private ProgressDialog progressDialog;
private ProgressDialog loadingDialog;
private FirebaseAuth mAuth;
// private FirebaseAuth.AuthStateListener mAuthListener;
private DatabaseReference firebaseDatabase,deptref,desigref;
private static final String TAG = "registrationlog";
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_register);
Log.i(TAG,"OnCreate");
username = (EditText)findViewById(R.id.user);
password = (EditText)findViewById(R.id.passw);
email = (EditText)findViewById(R.id.email);
deptspinner = (Spinner)findViewById(R.id.depspinner);
desigspinner = (Spinner)findViewById(R.id.desigspinner);
regbtn = (Button)findViewById(R.id.regbutton);
progressDialog = new ProgressDialog(this);
loadingDialog = new ProgressDialog(this);
mAuth = FirebaseAuth.getInstance();
// mAuthListener = new FirebaseAuth.AuthStateListener() {
// @Override
// public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
// FirebaseUser user = firebaseAuth.getCurrentUser();
// if(user!=null)
// {
// Log.i(TAG,"onAutStateChanged:signed_in:"+ user.getUid());
// }
// else{
// Log.i(TAG,"onAutStateChanged:signed_out");
// }
// }
// };
firebaseDatabase = FirebaseDatabase.getInstance().getReference("Users");
deptref = FirebaseDatabase.getInstance().getReference("Departments");
desigref = FirebaseDatabase.getInstance().getReference("Designations");
loadingDialog.setMessage("Loading...");
loadingDialog.show();
// set up department spinner
Log.i(TAG,"Calling getDepartments");
getDepartments();
// Set up desig spinner
Log.i(TAG,"Calling getDesignations");
getDesignations();
loadingDialog.dismiss();
// register btn listener
regbtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Log.i(TAG,"Clicked Register");
registerUser();
}
});
}
// fills list of departments from database
private void getDepartments() {
Log.i(TAG,"Inside getDepartments");
final List<String> deptlist = new ArrayList<String>();
deptref.addListenerForSingleValueEvent(new ValueEventListener() {
@Override
public void onDataChange(DataSnapshot dataSnapshot) {
Log.i(TAG,"DatasnapShot children count(departments): "+dataSnapshot.getChildrenCount());
for(DataSnapshot dsp: dataSnapshot.getChildren()){
Log.i(TAG, dsp.getValue(String.class));
deptlist.add(dsp.getValue(String.class));
ArrayAdapter<String> deptadapter = new ArrayAdapter<String>(RegisterActivity.this,android.R.layout.simple_spinner_item,deptlist);
deptadapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
deptspinner.setAdapter(deptadapter);
}
}
@Override
public void onCancelled(DatabaseError databaseError) {
throw databaseError.toException();
}
});
Log.i(TAG,"DeptList size before returning: "+deptlist.size());
}
// fills list of designations from database
private void getDesignations(){
Log.i(TAG,"Inside getDesignations");
final List<String> desiglist = new ArrayList<String>();
desigref.addListenerForSingleValueEvent(new ValueEventListener() {
@Override
public void onDataChange(DataSnapshot dataSnapshot) {
Log.i(TAG,"DatasnapShot children count(designations): "+dataSnapshot.getChildrenCount());
for(DataSnapshot dsp: dataSnapshot.getChildren()){
Log.i(TAG,dsp.getValue(String.class));
desiglist.add(dsp.getValue(String.class));
ArrayAdapter<String> desigadapter = new ArrayAdapter<String>(RegisterActivity.this,android.R.layout.simple_spinner_item,desiglist);
desigadapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
desigspinner.setAdapter(desigadapter);
}
}
@Override
public void onCancelled(DatabaseError databaseError) {
throw databaseError.toException();
}
});
Log.i(TAG,"DesigList Size: "+ desiglist.size());
}
// @Override
// public void onStart() {
// super.onStart();
// mAuth.addAuthStateListener(mAuthListener);
// }
//
// @Override
// public void onStop() {
// super.onStop();
// if (mAuthListener != null) {
// mAuth.removeAuthStateListener(mAuthListener);
// }
// }
private void registerUser(){
Log.i(TAG,"Register User");
String emailtext = email.getText().toString().trim();
String passtext = password.getText().toString().trim();
String[] namearray = new String[2];
StringBuilder userNameBuilder = new StringBuilder();
String usernametext = username.getText().toString().trim();
String finalUserName;
if(usernametext.contains(" "))
{
namearray = usernametext.split(" ");
userNameBuilder.append(namearray[0]).append(namearray[1]);
finalUserName = userNameBuilder.toString();
}
else{
finalUserName = usernametext;
}
String deptselected = deptspinner.getSelectedItem().toString();
String desigSelected = desigspinner.getSelectedItem().toString();
if(TextUtils.isEmpty(emailtext))
{
Toast.makeText(this,"Please enter the email",Toast.LENGTH_LONG).show();
return;
}
if(TextUtils.isEmpty(passtext))
{
Toast.makeText(this,"Please enter the password",Toast.LENGTH_LONG).show();
return;
}
if(TextUtils.isEmpty(usernametext))
{
Toast.makeText(this,"Please enter the username",Toast.LENGTH_LONG).show();
return;
}
if(TextUtils.isEmpty(deptselected))
{
Toast.makeText(this,"Please select the department",Toast.LENGTH_LONG).show();
return;
}
if(TextUtils.isEmpty(emailtext))
{
Toast.makeText(this,"Please select the designation",Toast.LENGTH_LONG).show();
return;
}
// validations are fine
progressDialog.setMessage("Registering User...");
progressDialog.show();
mAuth.createUserWithEmailAndPassword(finalUserName+"_iocl@gmail.com",passtext)
.addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
@Override
public void onComplete(@NonNull Task<AuthResult> task) {
progressDialog.dismiss();
if(task.isSuccessful())
{
Log.i(TAG,"Registered Success");
Toast.makeText(RegisterActivity.this,"User registered successfully",Toast.LENGTH_LONG).show();
finish();
startActivity(new Intent(RegisterActivity.this,LoginActivity.class));
}
else
{
Toast.makeText(RegisterActivity.this,"Failed to register. Please try again",Toast.LENGTH_LONG).show();
}
}
});
HashMap<String,String> userdetails = new HashMap<>();
// userdetails.put("Name",usernametext);
userdetails.put("Email",emailtext);
userdetails.put("Password",passtext);
userdetails.put("Department",deptselected);
userdetails.put("Designation",desigSelected);
String id = usernametext;
firebaseDatabase.child(id).setValue(userdetails);
}
}
build.gradle（Modulo：app）
apply plugin: 'com.android.application'
android {
compileSdkVersion 25
buildToolsVersion "25.0.2"
defaultConfig {
applicationId "apkcrew.teststationary"
minSdkVersion 17
targetSdkVersion 25
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(dir: 'libs', include: ['*.jar'])
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
compile 'com.android.support:appcompat-v7:25.3.1'
compile 'com.android.support.constraint:constraint-layout:1.0.2'
compile 'com.google.firebase:firebase-auth:11.0.2'
compile 'com.google.firebase:firebase-database:11.0.2'
compile 'com.android.support:design:25.3.1'
compile 'com.github.JakeWharton:ViewPagerIndicator:2.4.1'
compile 'com.itextpdf:itextg:5.5.9'
testCompile 'junit:junit:4.12'
}
apply plugin: 'com.google.gms.google-services'
的AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="apkcrew.teststationary">
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".LoginActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".RegisterActivity" />
<activity android:name=".DetailActivity" />
<activity android:name=".ViewRequest" />
<activity android:name=".EmployeeInfo" />
<activity android:name=".NewItemRequest" />
<activity android:name=".FirstScreen" />
<activity android:name=".AdminActivity" />
<activity android:name=".ApproveRequests" />
<activity android:name=".ApprovalConfirm" />
<activity android:name=".AdminDetails"></activity>
</application>
</manifest>