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Battrip
Asked:2020-01-20 17:56:10 +0000 UTC2020-01-20 17:56:10 +0000 UTC

连接到 firebase 时出错：无法解决：firebase-database-15.0.0

  • 772

同步过程中出现错误：

无法解决：firebase-auth-15.0.0

apply plugin: 'com.android.application'
apply plugin: 'com.google.gms.google-services'

android {
    compileSdkVersion 28
    defaultConfig {
        applicationId "com.example.battrip.bad_chat"
        minSdkVersion 21
        targetSdkVersion 28
        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 'com.google.firebase:firebase-core:16.0.4'
    implementation 'com.google.firebase:firebase-database:16.0.4'
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    //noinspection GradleCompatible
    implementation 'com.android.support:appcompat-v7:28.0.0'
    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
    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-database:16.0.1:15.0.0'
}
java

1 个回答

  1. Best Answer

    我如何修复错误：而不是

    implementation 'com.google.firebase:firebase-database:16.0.1:15.0.0'

    记录：

    implementation 'com.google.firebase:firebase-database:16.0.1'

    然后我忽略了 android studio 提供给我的东西。

    结果如下：

    dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:28.0.0'
    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
    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-database:16.0.1'
}

    为了测试应用程序的性能，我在activity_main中创建了一个按钮，并将以下代码添加到main_activity：

    public class MainActivity extends AppCompatActivity {
    FirebaseDatabase database = FirebaseDatabase.getInstance();
    DatabaseReference myRef = database.getReference("message");
    Button button1;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        button1 = findViewById(R.id.button1);
        button1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                myRef.setValue("Hello, World!");
            }
        });
    }
}

    编译，然后在firebase中检查一切都来了。

    • 1

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