Android AppCompat v7-23 主题坏了答案

【问题标题】：Android AppCompact v7-23 theme brokenAndroid AppCompat v7-23 主题坏了
【发布时间】：2016-06-18 16:30:20
【问题描述】：

我正在从 android studio 开始新的 android 项目。下面是我看到的登录屏幕。我不知道我在这里错过了什么。

我不知道为什么要显示这样的内容？

build.gradle（模块级）

apply plugin: 'com.android.application'

android {
    compileSdkVersion rootProject.ext.compileSdkVersion
    buildToolsVersion rootProject.ext.buildToolsVersion

    defaultConfig {
        applicationId "com.example.myapplication"
        minSdkVersion rootProject.ext.minSdkVersion
        targetSdkVersion rootProject.ext.targetSdkVersion
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    testCompile 'junit:junit:' + rootProject.ext.junitVersion
    compile 'com.loopj.android:android-async-http:' + rootProject.ext.loopjHttpAsyncTask
    compile 'com.roughike:bottom-bar:' + rootProject.ext.bottomBar
    compile 'com.android.support:appcompat-v7:' + rootProject.ext.supportLibraryVersion
    compile 'com.android.support:design:' + rootProject.ext.supportLibraryVersion
}

build.gradle（项目级别）

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

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.2.0-alpha3'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        jcenter()
    }
}

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

ext {
    //app related
    compileSdkVersion = 23
    buildToolsVersion = "23.0.3"
    minSdkVersion = 16
    targetSdkVersion = 23

    //android related library
    constraintLayout = "1.0.0-alpha3"
    junitVersion = "4.12"
    supportLibraryVersion = "23.3.0"

    //custom libraries
    bottomBar = "1.3.9"
    loopjHttpAsyncTask = "1.4.9"
}

【问题讨论】：

标签： android android-support-library android-support-design android-appcompat

【解决方案1】：

gradle build-tool 版本导致的问题。将构建工具版本更改为稳定版本即可解决此问题

替换

 classpath 'com.android.tools.build:gradle:2.2.0-alpha3'

与

classpath 'com.android.tools.build:gradle:2.1.0'

【讨论】：