主题错误 - 如何解决？ [英] Theme Error - how to fix?

问题描述

尝试了许多解决方案但没有帮助

参考：

解决方案

这是28.0.0中的一个错误，唯一的解决方法（解决方法）是将其添加到 Build.gradle ：

  configurations.all {
 resolutionStrategy.eachDependency {DependencyResolveDetails details  - > 
 def requested = details.requested 
 if（requested.group ==com.android.support）{
 if（！requested.name.startsWith（multidex））{
 details.useVersion27.1.1
} 
} 
} 
} 
  

以某种方式，这绕过了问题并使用了27个支持库。否则，您可能希望将Android Studio更新为canary频道版本或使用后向支持库（如27.1.1等）。

Tried Many Solution But No Helped

Ref : Failed to find style 'coordinatorLayoutStyle' in current theme

But not Helped

Render Problem:

Failed to find style 'coordinatorLayoutStyle' in current theme

Tip: Try to refresh the layout.

build.gradle file of my project is :

buildscript {

repositories {
    google()
    jcenter()
}
dependencies {
    classpath 'com.android.tools.build:gradle:3.1.4'


    // 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
}

module:app

apply plugin: 'com.android.application'

android {
    compileSdkVersion 28
    defaultConfig {
        applicationId "*****"
        minSdkVersion 19
        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 fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:28.0.0-alpha1'
    implementation 'com.android.support.constraint:constraint-layout:1.1.2'
    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.android.support:design:28.0.0-alpha1'
}

main Activity XML code

    <?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
    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"
    tools:context=".MainActivity">

    <android.support.design.bottomappbar.BottomAppBar
        android:id="@+id/bar"
        style="@style/Widget.MaterialComponents.BottomAppBar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom"
        app:navigationIcon="@drawable/ic_menu"
        app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
        app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
        app:fabAttached="true"
        app:backgroundTint="@color/colorPrimary"
        app:fabCradleVerticalOffset="12dp"/>

    <android.support.design.widget.FloatingActionButton
        android:id="@+id/fab"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:layout_anchor="@id/bar"/>

</android.support.design.widget.CoordinatorLayout>

Why I am Not changing compiled SDK version 28 to 27 bcz I want to use Bottom app bar

Bottom App Bar Material Design

App Bars:Bottom- Material Design

解决方案

This is a bug in 28.0.0 and the only fix(workaround) is adding this to your Build.gradle:

configurations.all {
        resolutionStrategy.eachDependency { DependencyResolveDetails details ->
            def requested = details.requested
            if (requested.group == "com.android.support") {
                if (!requested.name.startsWith("multidex")) {
                    details.useVersion "27.1.1"
                }
            }
        }
    }

Which somehow, this bypasses the issue and uses 27 support library for that. Otherwise, you may wanna update your Android Studio to canary channel version or using backward support library like 27.1.1 or etc.

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