java.lang.IllegalStateException：无法执行android：onClick错误的方法如何修复

Question

我正在尝试向ImageView添加点击功能。我从上一个项目中得到了帮助。没有错误，但是单击后没有任何反应。

但是，我没有输入任何信息，而是当我直接按下按钮时出现此错误。

错误：

E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.example.yagoozonv3, PID: 8602
    java.lang.IllegalStateException: Could not execute method for android:onClick
        at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:390)
        at android.view.View.performClick(View.java:6597)
        at android.view.View.performClickInternal(View.java:6574)
        at android.view.View.access$3100(View.java:778)
        at android.view.View$PerformClick.run(View.java:25885)
        at android.os.Handler.handleCallback(Handler.java:873)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loop(Looper.java:193)
        at android.app.ActivityThread.main(ActivityThread.java:6669)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
     Caused by: java.lang.reflect.InvocationTargetException
        at java.lang.reflect.Method.invoke(Native Method)
        at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:385)
        at android.view.View.performClick(View.java:6597) 
        at android.view.View.performClickInternal(View.java:6574) 
        at android.view.View.access$3100(View.java:778) 
        at android.view.View$PerformClick.run(View.java:25885) 
        at android.os.Handler.handleCallback(Handler.java:873) 
        at android.os.Handler.dispatchMessage(Handler.java:99) 
        at android.os.Looper.loop(Looper.java:193) 
        at android.app.ActivityThread.main(ActivityThread.java:6669) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858) 
     Caused by: java.lang.IllegalArgumentException: uri cannot be null
        at com.google.android.gms.common.internal.Preconditions.checkArgument(Unknown Source:35)
        at com.google.firebase.storage.StorageReference.putFile(com.google.firebase:firebase-storage@@16.0.4:258)
        at com.example.yagoozonv3.page_signUp.signUp(page_signUp.java:87)
        at java.lang.reflect.Method.invoke(Native Method) 
        at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:385) 
        at android.view.View.performClick(View.java:6597) 
        at android.view.View.performClickInternal(View.java:6574) 
        at android.view.View.access$3100(View.java:778) 
        at android.view.View$PerformClick.run(View.java:25885) 
        at android.os.Handler.handleCallback(Handler.java:873) 
        at android.os.Handler.dispatchMessage(Handler.java:99) 
        at android.os.Looper.loop(Looper.java:193) 
        at android.app.ActivityThread.main(ActivityThread.java:6669) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858) 

第87行。：

storageReference.putFile(image).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {

我的注册码的巫婆选择项方法：

package com.example.yagoozonv3;

import android.Manifest;
import android.app.ProgressDialog;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.graphics.Bitmap;
import android.net.Uri;
import android.provider.MediaStore;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.Toast;
import android.view.View;

import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.OnFailureListener;
import com.google.android.gms.tasks.OnSuccessListener;
import com.google.android.gms.tasks.Task;
import com.google.firebase.auth.AuthResult;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import com.google.firebase.storage.FirebaseStorage;
import com.google.firebase.storage.StorageReference;
import com.google.firebase.storage.UploadTask;

import java.io.IOException;
import java.util.UUID;

public class page_signUp extends AppCompatActivity {

    private Button btn_signupSignPage;
    private EditText emailText;
    private EditText passwordText;
    private EditText user_RealName;
    private EditText user_Surname;
    private EditText user_username;
    Uri image;
    private ImageView user_ProfileImage;
    private String downloadURL;
    private String admin = "false";

    // Database and Storage
    private FirebaseAuth mAuth;
    FirebaseDatabase firebaseDatabase;
    DatabaseReference myRef;
    private StorageReference mStorageRef = FirebaseStorage.getInstance().getReference();


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

        emailText = findViewById(R.id.mail_signupPage);
        passwordText = findViewById(R.id.pass_signupPage);
        user_RealName = findViewById(R.id.name_signPage);
        user_Surname = findViewById(R.id.surname_SignUpPage);
        user_username = findViewById(R.id.username_signPage);
        btn_signupSignPage = findViewById(R.id.btn_signSignupPage);
        user_ProfileImage = findViewById(R.id.selectImage);

        // Database and Storage
        mAuth = FirebaseAuth.getInstance();
        firebaseDatabase = FirebaseDatabase.getInstance();
        myRef = firebaseDatabase.getReference("Users");
        mStorageRef = FirebaseStorage.getInstance().getReference();
    }

    // Sign Up Method
    // Kullanıcı Kayıt etme metodu
    public void signUp(View view) {
        UUID uuid = UUID.randomUUID();
        final String imageName = "ProfileImages/"+uuid+".jpg";
        final ProgressDialog dialog = new ProgressDialog(page_signUp.this);
        dialog.setTitle("Creating user record.. ");
        dialog.setMessage("User registration is in progress..");
        dialog.show();
        StorageReference storageReference = mStorageRef.child(imageName);
        storageReference.putFile(image).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
            @Override
            public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
                // Url
                StorageReference newReference = FirebaseStorage.getInstance().getReference(imageName);
                newReference.getDownloadUrl().addOnSuccessListener(new OnSuccessListener<Uri>() {
                    @Override
                    public void onSuccess(Uri uri) {
                        downloadURL = uri.toString();
                        // Download Url Empty Control
                        if (downloadURL != null) {
                            mAuth.createUserWithEmailAndPassword(emailText.getText().toString(), passwordText.getText().toString())
                                    .addOnCompleteListener(page_signUp.this, new OnCompleteListener<AuthResult>() {
                                        @Override
                                        public void onComplete(@NonNull Task<AuthResult> task) {
                                            if (task.isSuccessful()) /* Kullanıcı girişi başarılı ise bu çalışacak */ {
                                                Toast.makeText(page_signUp.this, "User Created", Toast.LENGTH_SHORT).show();
                                                String userName = user_RealName.getText().toString();
                                                String userSurname = user_Surname.getText().toString();
                                                String username = user_username.getText().toString();
                                                String user_email = emailText.getText().toString();
                                                String key = FirebaseAuth.getInstance().getCurrentUser().getUid();
                                                String password = passwordText.getText().toString();
                                                String imageURL = downloadURL;

                                                Users user = new Users(key, userName, username, userSurname, user_email, password, imageURL, admin);
                                                myRef.child(key).setValue(user);

                                                dialog.dismiss();

                                            } else /* Kullanıcı girişi başarısız ise bu çalışacak */ {
                                                dialog.dismiss();
                                            }
                                        }
                                    }).addOnFailureListener(page_signUp.this, new OnFailureListener() {
                                @Override
                                public void onFailure(@NonNull Exception e) {
                                    Toast.makeText(page_signUp.this, e.getLocalizedMessage(), Toast.LENGTH_SHORT).show();
                                }
                            });
                        }
                    }
                });
            }

        }).addOnFailureListener(new OnFailureListener() {
            @Override
            public void onFailure(@NonNull Exception e) {

                Toast.makeText(page_signUp.this, e.getLocalizedMessage(), Toast.LENGTH_SHORT).show();
            }
        });
    }

    // Profile Image Side
    public void selectedImage (View view) {

        // Permission Control
        if(ContextCompat.checkSelfPermission(this,Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {

            ActivityCompat.requestPermissions(this, new String[] {Manifest.permission.READ_EXTERNAL_STORAGE}, 1);

        } else {
            Intent gallery = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
            startActivityForResult(gallery,2);
        }
    }
    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        if (requestCode == 1) {
            if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                Intent gallery = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
                startActivityForResult(gallery, 2);
            }
        }
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        if(requestCode == 2 && resultCode == RESULT_OK && data != null) {
            image = data.getData();
            try {
                Bitmap bitmap = MediaStore.Images.Media.getBitmap(this.getContentResolver(), image);
                user_ProfileImage.setImageBitmap(bitmap);
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        super.onActivityResult(requestCode, resultCode, data);
    }
    public void selectProfileImage() {
        UUID uuid = UUID.randomUUID();

        final String imageName = "ProfileImages/"+uuid+".jpg";

        StorageReference storageReference = mStorageRef.child(imageName);
        storageReference.putFile(image).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
            @Override
            public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {

                // Url
                StorageReference newReference = FirebaseStorage.getInstance().getReference(imageName);
                newReference.getDownloadUrl().addOnSuccessListener(new OnSuccessListener<Uri>() {
                    @Override
                    public void onSuccess(Uri uri) {

                        downloadURL = uri.toString();

                    }
                });


            }
        }).addOnFailureListener(new OnFailureListener() {
            @Override
            public void onFailure(@NonNull Exception e) {
                Toast.makeText(page_signUp.this, e.getLocalizedMessage(), Toast.LENGTH_SHORT).show();
            }
        });
    }
}

注册XML代码：

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 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="@color/colorPrimary"
    tools:context=".page_signUp">

    <EditText
        android:id="@+id/surname_SignUpPage"
        android:layout_width="169dp"
        android:textColor="#ffff"
        android:textColorHint="#ffff"
        android:layout_height="46dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="24dp"
        android:layout_marginRight="24dp"
        android:layout_marginBottom="8dp"
        android:ems="10"
        android:hint="Surname"
        android:inputType="textPersonName"
        app:layout_constraintBottom_toTopOf="@+id/username_signPage"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textView2"
        app:layout_constraintVertical_bias="0.571" />

    <EditText
        android:id="@+id/mail_signupPage"
        android:textColor="#ffff"
        android:textColorHint="#ffff"
        android:layout_width="358dp"
        android:layout_height="0dp"
        android:layout_marginStart="8dp"
        android:layout_marginLeft="8dp"
        android:layout_marginTop="68dp"
        android:layout_marginEnd="8dp"
        android:layout_marginRight="8dp"
        android:ems="10"
        android:hint="E-Mail"
        android:inputType="textEmailAddress"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.513"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="@+id/username_signPage" />

    <EditText
        android:id="@+id/pass_signupPage"
        android:textColor="#ffff"
        android:textColorHint="#ffff"
        android:layout_width="358dp"
        android:layout_height="47dp"
        android:layout_marginStart="8dp"
        android:layout_marginLeft="8dp"
        android:layout_marginTop="24dp"
        android:layout_marginEnd="8dp"
        android:layout_marginRight="8dp"
        android:ems="10"
        android:hint="Password"
        android:inputType="textPassword"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.567"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/mail_signupPage" />

    <Button
        android:id="@+id/btn_signSignupPage"
        android:background="@color/cardview_light_background"
        android:layout_width="358dp"
        android:layout_height="55dp"
        android:layout_marginStart="8dp"
        android:layout_marginLeft="8dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="8dp"
        android:layout_marginRight="8dp"
        android:layout_marginBottom="76dp"
        android:onClick="signUp"
        android:text="SIGN UP"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.486"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/selectImage" />

    <TextView
        android:id="@+id/textView2"
        android:textColor="#ffff"
        android:layout_width="318dp"
        android:layout_height="81dp"
        android:layout_marginStart="8dp"
        android:layout_marginLeft="8dp"
        android:layout_marginTop="44dp"
        android:layout_marginEnd="8dp"
        android:layout_marginRight="8dp"
        android:text="Welcome Sign Up Page"
        android:textAlignment="center"
        android:textSize="30dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <EditText
        android:id="@+id/name_signPage"
        android:textColor="#ffff"
        android:textColorHint="#ffff"
        android:layout_width="165dp"
        android:layout_height="46dp"
        android:layout_marginStart="8dp"
        android:layout_marginLeft="8dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="8dp"
        android:layout_marginRight="8dp"
        android:layout_marginBottom="8dp"
        android:ems="10"
        android:hint="Name"
        android:inputType="textPersonName"
        app:layout_constraintBottom_toTopOf="@+id/username_signPage"
        app:layout_constraintEnd_toStartOf="@+id/surname_SignUpPage"
        app:layout_constraintHorizontal_bias="0.513"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textView2"
        app:layout_constraintVertical_bias="0.571" />

    <EditText
        android:id="@+id/username_signPage"
        android:textColor="#ffff"
        android:textColorHint="#ffff"
        android:layout_width="358dp"
        android:layout_height="47dp"
        android:layout_marginStart="8dp"
        android:layout_marginLeft="8dp"
        android:layout_marginTop="88dp"
        android:layout_marginEnd="8dp"
        android:layout_marginRight="8dp"
        android:ems="10"
        android:hint="Username"
        android:inputType="textPersonName"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.567"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textView2" />

    <ImageView
        android:id="@+id/selectImage"
        android:layout_width="230dp"
        android:layout_height="96dp"
        android:layout_marginStart="8dp"
        android:layout_marginLeft="8dp"
        android:layout_marginTop="16dp"
        android:layout_marginEnd="8dp"
        android:layout_marginRight="8dp"
        android:onClick="selectedImage"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.89"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/pass_signupPage"
        app:srcCompat="@drawable/select_button" />

    <TextView
        android:id="@+id/selectImageView"
        android:textColor="#ffff"
        android:layout_width="115dp"
        android:layout_height="78dp"
        android:layout_marginStart="8dp"
        android:layout_marginLeft="8dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="8dp"
        android:layout_marginRight="8dp"
        android:layout_marginBottom="8dp"
        android:paddingTop="15dp"
        android:text="Select Profile Image :"
        android:textAlignment="center"
        android:textSize="15dp"
        app:layout_constraintBottom_toTopOf="@+id/btn_signSignupPage"
        app:layout_constraintEnd_toStartOf="@+id/selectImage"
        app:layout_constraintHorizontal_bias="0.913"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/pass_signupPage" />

</android.support.constraint.ConstraintLayout>

尽管其他项目可行，但该项目也不可行。

预先感谢您的帮助。