无法解析 android 中的 verifyPhoneNumber()

Question

I am building video calling app in android using java language in which I am getting error in verifyPhoneNumber() in phone authentication in firebase. Below java code,xml files and all dependencies are written.i dont know why i am getting error.I have defined all.I have googled it alot for same

MainActivity.java

package com.example.dekho;

import androidx.appcompat.app.AppCompatActivity;

import android.app.ProgressDialog;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.RelativeLayout;
import android.widget.Toast;

import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.auth.PhoneAuthProvider;
import com.hbb20.CountryCodePicker;
import java.util.concurrent.TimeUnit;





import java.util.concurrent.TimeUnit;

public class MainActivity extends AppCompatActivity {

    private CountryCodePicker ccp;
    private EditText phoneText;
    private EditText codeText;
    private Button continueAndNextBtn;
    private String checker="",phoneNumber="";
    private RelativeLayout relativeLayout;
    private PhoneAuthProvider.OnVerificationStateChangedCallbacks mCallbacks;
    private FirebaseAuth mAuth;
    private String mVerificationId;
    private PhoneAuthProvider.ForceResendingToken mSendToken;
    private ProgressDialog loadingBar;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        ccp=findViewById(R.id.ccp);
        phoneText=findViewById(R.id.phoneText);
        codeText=findViewById(R.id.codeText);
        continueAndNextBtn=findViewById(R.id.continueNextButton);
        relativeLayout=findViewById(R.id.phoneAuth);
        continueAndNextBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
               // Toast.makeText(getApplicationContext(),"Hello Javatpoint",Toast.LENGTH_SHORT).show();
                PhoneAuthProvider.getInstance().verifyPhoneNumber(
                        phoneNumber,        // Phone number to verify
                        60,                 // Timeout duration
                        TimeUnit.SECONDS,   // Unit of timeout
                        this,               // Activity (for callback binding)
                        mCallbacks);        // OnVerificationStateChangedCallbacks


            }
        });






















    }
}

xml file

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/register"
    tools:context=".MainActivity">


    <TextView
        android:id="@+id/textview1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="260dp">
    </TextView>


    <RelativeLayout
        android:id="@+id/phoneAuth"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/textview1"
        android:layout_marginLeft="25dp"
        android:layout_marginRight="25dp"
        android:padding="8dp">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical">

            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:text="Phone Number:"
                android:textStyle="bold"
                android:textColor="@android:color/white"
                android:textSize="18sp" />

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:gravity="center_vertical">

                <com.hbb20.CountryCodePicker
                    android:id="@+id/ccp"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:background="@android:color/white"
                    app:ccp_defaultNameCode="IN" />

                <EditText
                    android:id="@+id/phoneText"
                    android:layout_width="match_parent"
                    android:layout_height="60dp"
                    android:textColor="@android:color/white"
                    android:textColorHint="@android:color/darker_gray"
                    android:inputType="phone"
                    android:singleLine="true"
                    android:backgroundTint="@android:color/white"/>
            </LinearLayout>
        </LinearLayout>
    </RelativeLayout>



    <EditText
        android:id="@+id/codeText"
        android:layout_width="match_parent"
        android:layout_height="60dp"
        android:layout_margin="25dp"
        android:hint="Write you code here..."
        android:textColor="@android:color/white"
        android:textColorHint="@android:color/white"
        android:inputType="phone"
        android:singleLine="true"
        android:layout_below="@+id/phoneAuth"
        android:drawableLeft="@drawable/password"
        android:drawableTint="@android:color/white"
        android:backgroundTint="@android:color/white"
        android:visibility="gone"/>

    <Button
        android:id="@+id/continueNextButton"
        android:layout_width="120dp"
        android:layout_height="40dp"
        android:layout_below="@+id/codeText"
        android:layout_centerHorizontal="true"
        android:text="Continue"
        android:textAllCaps="false"
        android:layout_marginTop="6dp"
        android:textSize="15dp"
        android:background="@color/colorPrimary"
        android:textColor="@android:color/white"/>


</RelativeLayout>

project level dependencies

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {

    repositories {
        google()
        jcenter()

    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.6.2'
        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 {
        google()
        jcenter()

    }
}

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

app level dependencies

apply plugin: 'com.android.application'

android {
    compileSdkVersion 29
    buildToolsVersion "29.0.3"

    defaultConfig {
        applicationId "com.example.dekho"
        minSdkVersion 16
        targetSdkVersion 29
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }

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

}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.google.firebase:firebase-core:17.3.0'
    implementation 'com.google.firebase:firebase-database:19.2.1'
    implementation 'com.google.firebase:firebase-storage:19.1.1'
    //implementation 'com.google.firebase:firebase-ui-database:3.2.2'
    implementation 'com.google.firebase:firebase-auth:19.3.0'
    implementation 'com.hbb20:ccp:2.1.9'
    implementation  'pub.devrel:easypermissions:0.4.0'
    implementation 'androidx.appcompat:appcompat:1.1.0'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
    implementation 'com.google.firebase:firebase-core:11.4.0'
    implementation 'com.google.firebase:firebase-messaging:11.4.0'
    implementation 'com.google.firebase:firebase-auth:11.4.0'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test.ext:junit:1.1.1'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'





}

Error log

2020-04-16 12:39:03.571 26139-26139/? I/m.example.dekh: Late-enabling -Xcheck:jni
2020-04-16 12:39:03.638 26139-26139/? W/re-initialized>: type=1400 audit(0.0:82712): avc: denied { read } for name="u:object_r:mtk_amslog_prop:s0" dev="tmpfs" ino=12437 scontext=u:r:untrusted_app:s0:c252,c256,c512,c768 tcontext=u:object_r:mtk_amslog_prop:s0 tclass=file permissive=0
2020-04-16 12:39:03.642 26139-26139/? E/libc: Access denied finding property "persist.vendor.sys.activitylog"
2020-04-16 12:39:03.717 26139-26139/com.example.dekho D/VivoTheme: load old package name start
2020-04-16 12:39:04.220 26139-26139/com.example.dekho W/FirebaseApp: Default FirebaseApp failed to initialize because no default options were found. This usually means that com.google.gms:google-services was not applied to your gradle project.
2020-04-16 12:39:04.220 26139-26139/com.example.dekho I/FirebaseInitProvider: FirebaseApp initialization unsuccessful
2020-04-16 12:39:04.236 26139-26139/com.example.dekho D/NightModeController: com.example.dekho = true
2020-04-16 12:39:04.236 26139-26139/com.example.dekho D/NightModeController: disable nightmode package:com.example.dekho
2020-04-16 12:39:04.322 26139-26139/com.example.dekho I/FtBuild: getRomVersion mRomVer=9.0
2020-04-16 12:39:04.337 26139-26139/com.example.dekho W/m.example.dekh: Accessing hidden method Landroid/graphics/drawable/Drawable;->getOpticalInsets()Landroid/graphics/Insets; (light greylist, linking)
2020-04-16 12:39:04.338 26139-26139/com.example.dekho W/m.example.dekh: Accessing hidden field Landroid/graphics/Insets;->left:I (light greylist, linking)
2020-04-16 12:39:04.338 26139-26139/com.example.dekho W/m.example.dekh: Accessing hidden field Landroid/graphics/Insets;->right:I (light greylist, linking)
2020-04-16 12:39:04.338 26139-26139/com.example.dekho W/m.example.dekh: Accessing hidden field Landroid/graphics/Insets;->top:I (light greylist, linking)
2020-04-16 12:39:04.338 26139-26139/com.example.dekho W/m.example.dekh: Accessing hidden field Landroid/graphics/Insets;->bottom:I (light greylist, linking)
2020-04-16 12:39:04.381 26139-26139/com.example.dekho D/VivoPhoneWindow: DEBUG_ALIENSCREEN:getRotation mRotation=0
2020-04-16 12:39:04.381 26139-26139/com.example.dekho I/PhoneWindow: initSystemUIColor
2020-04-16 12:39:04.441 26139-26139/com.example.dekho W/m.example.dekh: Accessing hidden method Landroid/view/View;->computeFitSystemWindows(Landroid/graphics/Rect;Landroid/graphics/Rect;)Z (light greylist, reflection)
2020-04-16 12:39:04.444 26139-26139/com.example.dekho W/m.example.dekh: Accessing hidden method Landroid/view/ViewGroup;->makeOptionalFitsSystemWindows()V (light greylist, reflection)
2020-04-16 12:39:04.497 26139-26139/com.example.dekho W/m.example.dekh: Accessing hidden method Landroid/widget/TextView;->getTextDirectionHeuristic()Landroid/text/TextDirectionHeuristic; (light greylist, linking)
2020-04-16 12:39:04.513 26139-26139/com.example.dekho W/m.example.dekh: Accessing hidden method Landroid/graphics/FontFamily;-><init>()V (light greylist, reflection)
2020-04-16 12:39:04.513 26139-26139/com.example.dekho W/m.example.dekh: Accessing hidden method Landroid/graphics/FontFamily;->addFontFromAssetManager(Landroid/content/res/AssetManager;Ljava/lang/String;IZIII[Landroid/graphics/fonts/FontVariationAxis;)Z (light greylist, reflection)
2020-04-16 12:39:04.513 26139-26139/com.example.dekho W/m.example.dekh: Accessing hidden method Landroid/graphics/FontFamily;->addFontFromBuffer(Ljava/nio/ByteBuffer;I[Landroid/graphics/fonts/FontVariationAxis;II)Z (light greylist, reflection)
2020-04-16 12:39:04.513 26139-26139/com.example.dekho W/m.example.dekh: Accessing hidden method Landroid/graphics/FontFamily;->freeze()Z (light greylist, reflection)
2020-04-16 12:39:04.513 26139-26139/com.example.dekho W/m.example.dekh: Accessing hidden method Landroid/graphics/FontFamily;->abortCreation()V (light greylist, reflection)
2020-04-16 12:39:04.514 26139-26139/com.example.dekho W/m.example.dekh: Accessing hidden method Landroid/graphics/Typeface;->createFromFamiliesWithDefault([Landroid/graphics/FontFamily;Ljava/lang/String;II)Landroid/graphics/Typeface; (light greylist, reflection)
2020-04-16 12:39:04.534 26139-26139/com.example.dekho D/CCP: init:xmlWidth -2
2020-04-16 12:39:04.560 26139-26139/com.example.dekho D/CCP: updateLanguageToApply: ENGLISH
2020-04-16 12:39:04.763 26139-26139/com.example.dekho D/CCP: updateFormattingTextWatcher: EditText not registered CCP_last_selection
2020-04-16 12:39:04.766 26139-26139/com.example.dekho D/CCP: end:xmlWidth -2
2020-04-16 12:39:04.864 26139-26139/com.example.dekho D/OpenGLRenderer: Dumper init 4 threads <0x6fcfbd2d40>
2020-04-16 12:39:04.864 26139-26139/com.example.dekho D/OpenGLRenderer: <com.example.dekho> is running.
2020-04-16 12:39:04.864 26139-26139/com.example.dekho D/OpenGLRenderer: Skia GL Pipeline
2020-04-16 12:39:04.865 26139-26139/com.example.dekho I/SurfaceFactory: [static] sSurfaceFactory = com.mediatek.view.impl.SurfaceFactoryImpl@a0e3075
2020-04-16 12:39:04.885 26139-26139/com.example.dekho D/ViewRootImpl[MainActivity]: hardware acceleration = true , fakeHwAccelerated = false, sRendererDisabled = false, forceHwAccelerated = false, sSystemRendererDisabled = false
2020-04-16 12:39:04.904 26139-26139/com.example.dekho V/PhoneWindow: DecorView setVisiblity: visibility = 0, Parent = android.view.ViewRootImpl@7c35698, this = DecorView@41e5ef1[MainActivity]
2020-04-16 12:39:04.919 26139-26139/com.example.dekho I/TouchMotionHandler: handler onAttached
2020-04-16 12:39:05.019 26139-26139/com.example.dekho D/Surface: Surface::allocateBuffers(this=0x6fd7cfb000)
2020-04-16 12:39:05.027 26139-26169/com.example.dekho I/ConfigStore: android::hardware::configstore::V1_0::ISurfaceFlingerConfigs::hasWideColorDisplay retrieved: 0
2020-04-16 12:39:05.028 26139-26169/com.example.dekho I/ConfigStore: android::hardware::configstore::V1_0::ISurfaceFlingerConfigs::hasHDRDisplay retrieved: 0
2020-04-16 12:39:05.028 26139-26169/com.example.dekho I/OpenGLRenderer: Initialized EGL, version 1.4
2020-04-16 12:39:05.028 26139-26169/com.example.dekho D/OpenGLRenderer: Swap behavior 2
2020-04-16 12:39:05.044 26139-26169/com.example.dekho D/Surface: Surface::connect(this=0x6fd7cfb000,api=1)
2020-04-16 12:39:05.127 26139-26169/com.example.dekho E/ion: ioctl c0044901 failed with code -1: Invalid argument
2020-04-16 12:39:06.690 26139-26139/com.example.dekho D/TextView: touchFinish handled:false    --- mShowToolbar=false
2020-04-16 12:39:06.712 26139-26139/com.example.dekho I/AssistStructure: Flattened final assist data: 4084 bytes, containing 1 windows, 15 views
2020-04-16 12:39:07.075 26139-26139/com.example.dekho D/AndroidRuntime: Shutting down VM
2020-04-16 12:39:07.079 26139-26139/com.example.dekho E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.example.dekho, PID: 26139
    java.lang.IllegalStateException: Default FirebaseApp is not initialized in this process com.example.dekho. Make sure to call FirebaseApp.initializeApp(Context) first.
        at com.google.firebase.FirebaseApp.getInstance(com.google.firebase:firebase-common@@19.3.0:184)
        at com.google.firebase.auth.PhoneAuthProvider.getInstance(com.google.firebase:firebase-auth@@19.3.0:5)
        at com.example.dekho.MainActivity$1.onClick(MainActivity.java:51)
        at android.view.View.performClick(View.java:6647)
        at android.view.View.performClickInternal(View.java:6620)
        at android.view.View.access$3100(View.java:791)
        at android.view.View$PerformClick.run(View.java:26346)
        at android.os.Handler.handleCallback(Handler.java:873)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loop(Looper.java:224)
        at android.app.ActivityThread.main(ActivityThread.java:7081)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:536)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:928)
2020-04-16 12:39:07.103 26139-26139/com.example.dekho I/Process: Sending signal. PID: 26139 SIG: 9

Answer 1

You are passing the wrong set of arguments to verifyPhoneNumber() . The this keyword inside OnClickListener is the problem. Calling this inside setOnClickListener() refered to the OnClickListener your passing and not the activity. So, there you have to use like MainActivity.this for it to refer to the activity.

Kindly update the OnClickListener as follows

continueAndNextBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                PhoneAuthProvider.getInstance().verifyPhoneNumber(
                        phoneNumber,        // Phone number to verify
                        60,                 // Timeout duration
                        TimeUnit.SECONDS,   // Unit of timeout
                        MainActivity.this,               // Uses the <ActivityName>.this instead of just "this" Activity (for callback binding)
                        mCallbacks);        // OnVerificationStateChangedCallbacks


            }
});

Update

With regarding OP's crash issue: It says right in the attached stack trace that

Make sure to call FirebaseApp.initializeApp(Context) first.

So you need to initialize FirebaseApp in the onCreate() method of either

1. The activity (Then Firebase will be available to activity context)
2. In the Application class (Firebase will be available to entire app)

by calling

FirebaseApp.initializeApp(this);