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java - 如何修复 'handleWindowVisibility: no activity for token android.os.BinderProxy' ？

转载 作者：太空狗 更新时间：2023-10-29 13:44:54 30 4
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我正在开发一个小型应用程序，该应用程序已经过测试并且一直运行良好。当我添加新代码让应用程序将信息发送到我的 Firebase 实时数据库时，它只是不会启动我的应用程序。它会使 MainActivity 闪烁一秒钟然后变黑。

当我删除输入的代码时，enter code here 会继续执行相同的操作。尽管相同的代码(在删除我认为不好的代码之后)之前可以正常工作。我翻遍了论坛，但在 Activity 完成之前没有找到任何引用对话框的代码

,,,
/com.fromfire.fantastysurvivor W/ActivityThread: handleWindowVisibility: 
no activity for token android.os.BinderProxy@356e9f5
2019-05-08 07:46:47.891 3306-3306/com.fromfire.fantastysurvivor V/FA: 
onActivityCreated
2019-05-08 07:46:47.998 3306-3306/com.fromfire.fantastysurvivor 
W/ActivityThread: handleWindowVisibility: no activity for token 
android.os.BinderProxy@c10e219
2019-05-08 07:46:48.014 3306-3306/com.fromfire.fantastysurvivor V/FA: 
onActivityCreated
2019-05-08 07:46:48.108 3306-3306/com.fromfire.fantastysurvivor 
W/ActivityThread: handleWindowVisibility: no activity for token 
android.os.BinderProxy@2818389
2019-05-08 07:46:48.116 3306-3306/com.fromfire.fantastysurvivor V/FA: 
onActivityCreated
2019-05-08 07:46:48.238 3306-3306/com.fromfire.fantastysurvivor 
W/ActivityThread: handleWindowVisibility: no activity for token 
android.os.BinderProxy@b4e046d
2019-05-08 07:46:48.254 3306-3306/com.fromfire.fantastysurvivor V/FA: 
onActivityCreated
2019-05-08 07:46:48.359 3306-3306/com.fromfire.fantastysurvivor 
W/ActivityThread: handleWindowVisibility: no activity for token 
android.os.BinderProxy@685e2dd
2019-05-08 07:46:48.383 3306-3306/com.fromfire.fantastysurvivor V/FA: 
onActivityCreated
,,,

,,,java
import android.app.ProgressDialog;
import android.content.Intent;
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.FirebaseAuth;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;

import java.util.HashMap;

import de.hdodenhof.circleimageview.CircleImageView;

public class SetupActivity extends AppCompatActivity
{

    private EditText UserName, FullName, CountryName;
    private Button SaveInformationButton;
    private CircleImageView ProfileImage;
    private FirebaseAuth mAuth;
    private DatabaseReference UsersRef;
    private ProgressDialog loadingBar;

    String currentUserID;


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

        mAuth = FirebaseAuth.getInstance();
        currentUserID = mAuth.getCurrentUser().getUid();
        UsersRef = FirebaseDatabase.getInstance().getReference().child("Users").child(currentUserID);

        UserName = (EditText) findViewById(R.id.setup_username);
        FullName = (EditText) findViewById(R.id.set_full_name);
        CountryName = (EditText) findViewById(R.id.setup_country_name);
        SaveInformationButton = (Button) findViewById(R.id.setup_information_button);
        ProfileImage = (CircleImageView) findViewById(R.id.setup_profile_image);
        loadingBar = new ProgressDialog(this);

        SaveInformationButton.setOnClickListener(new View.OnClickListener()
        {
            @Override
            public void onClick(View v)
            {
                SaveAccountSetupInformation();
            }
        });

    }

    private void SaveAccountSetupInformation()
    {
        String username = UserName.getText().toString();
        String fullname = FullName.getText().toString();
        String country = CountryName.getText().toString();

        if(TextUtils.isEmpty(username))
        {
            Toast.makeText(SetupActivity.this, "Please enter Username", Toast.LENGTH_SHORT).show();
        }
        if(TextUtils.isEmpty(fullname))
        {
            Toast.makeText(SetupActivity.this, "Please enter your full name", Toast.LENGTH_SHORT).show();
        }
        if(TextUtils.isEmpty(country))
        {
            Toast.makeText(SetupActivity.this, "Please enter you country", Toast.LENGTH_SHORT).show();
        }
        else
        {

            loadingBar.setTitle("Saving information...");
            loadingBar.setMessage("Please wait...");
            loadingBar.show();
            loadingBar.setCanceledOnTouchOutside(true);

            HashMap userMap = new HashMap();
            userMap.put("username", username);
            userMap.put("fullname", fullname);
            userMap.put("country", country);
            userMap.put("status", "Hey There");
            UsersRef.updateChildren(userMap).addOnCompleteListener(new OnCompleteListener()
            {
                @Override
                public void onComplete(@NonNull Task task)
                {
                    if(task.isSuccessful())
                    {
                        SendUserToMainActivity();
                        Toast.makeText(SetupActivity.this, "Account created successfully", Toast.LENGTH_LONG).show();
                        loadingBar.dismiss();
                    }
                    else
                    {
                        String message = task.getException().getMessage();
                        Toast.makeText(SetupActivity.this, "Error occured: " + message, Toast.LENGTH_SHORT).show();
                        loadingBar.dismiss();
                    }
                }
            });
        }
    }

    private void SendUserToMainActivity()
    {
        Intent mainIntent = new Intent(SetupActivity.this, MainActivity.class);
        mainIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
        startActivity(mainIntent);

    }
}
,,,
Build Gradle (App)
,,,
apply plugin: 'com.android.application'

android {
    compileSdkVersion 28
    defaultConfig {
        applicationId "com.fromfire.fantastysurvivor"
        minSdkVersion 23
        targetSdkVersion 28
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.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.android.support:appcompat-v7:28.0.0'
    implementation 'com.android.support:support-v4:28.0.0'
    implementation 'com.android.support:design:28.0.0'
    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
    implementation 'com.google.firebase:firebase-storage:16.0.4'
    implementation 'com.google.firebase:firebase-database:16.0.4'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
    implementation 'com.google.firebase:firebase-core:16.0.8'
    implementation 'com.google.firebase:firebase-auth:16.2.1'
    implementation 'com.google.android.gms:play-services-auth:16.0.1'
    implementation 'com.firebaseui:firebase-ui-auth:4.3.1'
    implementation 'com.google.firebase:firebase-messaging:17.6.0'
    implementation 'de.hdodenhof:circleimageview:3.0.0'
}
apply plugin: 'com.google.gms.google-services'
,,,

MainActivity
,,,java
package com.fromfire.fantastysurvivor;

import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.view.View;
import android.support.v4.view.GravityCompat;
import android.support.v7.app.ActionBarDrawerToggle;
import android.view.MenuItem;
import android.support.design.widget.NavigationView;
import android.support.v4.widget.DrawerLayout;

import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;

import com.firebase.ui.auth.AuthUI;
import com.firebase.ui.auth.IdpResponse;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.auth.FirebaseAuthException;
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.Arrays;
import java.util.List;

public class MainActivity extends AppCompatActivity
        implements NavigationView.OnNavigationItemSelectedListener {

    private FirebaseAuth mAuth;
    private DatabaseReference UsersRef;

    String currentUserID;


    List<AuthUI.IdpConfig> providers = Arrays.asList(
            new AuthUI.IdpConfig.EmailBuilder().build(),
            new AuthUI.IdpConfig.GoogleBuilder().build());

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

        mAuth = FirebaseAuth.getInstance();
        UsersRef = FirebaseDatabase.getInstance().getReference().child("Users");

        //Navigation Drawer
        Toolbar toolbar = findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);
        getSupportActionBar().setTitle("Home");
        DrawerLayout drawer = findViewById(R.id.drawer_layout);
        NavigationView navigationView = findViewById(R.id.nav_view);
        ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
                this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
        drawer.addDrawerListener(toggle);
        toggle.syncState();
        navigationView.setNavigationItemSelectedListener(this);
    }

    @Override
    protected void onStart()
    {
        super.onStart();

        FirebaseUser currentUser = mAuth.getCurrentUser();

        if(currentUser == null)
        {
            SendUserToLoginActivity();
        }
        else
        {
            CheckUserExistence();
        }
    }

    private void CheckUserExistence()
    {
        final String current_user_id = mAuth.getCurrentUser().getUid();

        UsersRef.addValueEventListener(new ValueEventListener() {
            @Override
            public void onDataChange(DataSnapshot dataSnapshot)
            {
                if(!dataSnapshot.hasChild(current_user_id))
                {
                    SendUserToSetupActivity();
                }
            }

            @Override
            public void onCancelled(DatabaseError databaseError) {

            }
        });
    }

    private void SendUserToSetupActivity()
    {
        Intent setupIntent = new Intent(MainActivity.this, SetupActivity.class);
        setupIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
        startActivity(setupIntent);
        finish();
    }

    private void SendUserToLoginActivity()
    {
        Intent loginIntent = new Intent(MainActivity.this, LoginActivity.class);
        loginIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
        startActivity(loginIntent);
        finish();
    }

    public void onBackPressed() {
        DrawerLayout drawer = findViewById(R.id.drawer_layout);
        if (drawer.isDrawerOpen(GravityCompat.START)) {
            drawer.closeDrawer(GravityCompat.START);
        } else {
            super.onBackPressed();
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }

    public boolean onNavigationItemSelected(MenuItem item) {
        // Handle navigation view item clicks here.
        int id = item.getItemId();
        Fragment fragment;

        if (id == R.id.nav_leader) {


        } else if (id == R.id.nav_mypicks) {


        } else if (id == R.id.nav_tribe) {


        } else if (id == R.id.nav_results) {


        } else if (id == R.id.nav_chat) {


        } else if (id == R.id.nav_settings) {


        } else if (id == R.id.nav_about) {


        } else if (id == R.id.nav_donate) {


        } else if (id == R.id.nav_logout) {
            mAuth.signOut();
            SendUserToLoginActivity();

        } else if (id == R.id.nav_feedback) {


        } else if (id == R.id.nav_profile) {


        } else if (id == R.id.nav_home) {

        }

        DrawerLayout drawer = findViewById(R.id.drawer_layout);
        drawer.closeDrawer(GravityCompat.START);
        return true;
    }


}
,,,

我希望在我与用户一起登录后，让该 uID 引用我的 firebase 数据库，如果没有用户具有该 uID，它将把他们重定向到 SetupActivity 类以获取更多信息输入。

现在屏幕闪烁一瞬间(我猜是在显示我的 MainActivity)然后变黑。

最佳答案

我保存了我所有的代码和 xml 并将其直接粘贴到一个新项目中，问题就消失了。一定是遇到了一些非常隐蔽的错误。

关于java - 如何修复 'handleWindowVisibility: no activity for token android.os.BinderProxy' ？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/56042692/

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