release模式配置keystore

我們點擊Project Structure

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點擊我們項目的model慧脱，選擇Signing選項

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使得簽名生效需配置Build Types

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apply plugin: 'com.android.application'
android {
    compileSdkVersion 27
    defaultConfig {
        applicationId "com.zxn.gaode"
        minSdkVersion 15
        targetSdkVersion 27
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    signingConfigs {
        release {
            keyAlias 'mgddkeystore'
            keyPassword 'mgdd888'
            storeFile file('D:/MyGitHubDemos/MyGaoDe-asp/MyGaoDeDemo/mgdd.jks')
            storePassword 'mgdd888'
        }
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
            signingConfig signingConfigs.release
        }
    }
}
dependencies {
    implementation fileTree(include: ['*.jar'], dir: 'libs')
    implementation 'com.android.support:appcompat-v7:27.1.1'
    implementation 'com.android.support.constraint:constraint-layout:1.1.0'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.1'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
}

簽名文件的密碼信息配置在local.properties

上述的配置簡單實用，但是不安全奠宜，假如你的項目是開源的，你把簽名文件的配置密碼之類的信息用明文寫在build.gradle里面，不夠安全
可以將簽名文件的配置密碼之類的信息寫在local.properties下压真，因為在Git版本控制的項目中娩嚼，我們可以看到我們項目project模式根目錄下有一個.gitignore的文件，里面的配置大概如下所示

*.iml
.gradle
/local.properties
/.idea/libraries
/.idea/modules.xml
/.idea/workspace.xml
.DS_Store
/build
/captures
.externalNativeBuild

其中我們可以看到/local.properties滴肿，意思就是說local.properties默認是不添加到版本控制里面的岳悟，因為local.properties存儲的是我們環(huán)境資源的一些相關(guān)信息，如sdk的路徑泼差。故我們可以在local.properties下配置簽名信息而不用擔心密鑰外泄贵少。對于開源項目來說，是非常好的堆缘。
在local.properties下直接添加相關(guān)信息

## This file must *NOT* be checked into Version Control Systems,
# as it contains information specific to your local configuration.
#
# Location of the SDK. This is only used by Gradle.
# For customization when using a Version Control System, please read the
# header note.
#Sat Apr 21 12:17:45 CST 2018
ndk.dir=C\:\\MyPrograms\\Android\\sdkAS\\ndk-bundle
sdk.dir=C\:\\MyPrograms\\Android\\sdkAS
#keystore.path= D\:/MyGitHubDemos/MyGaoDe-asp/MyGaoDeDemo/mgdd.jks
KEY_ALIAS = mgddkeystore
STORE_PASSWORD = mgdd888
KEY_PASSWORD = mgdd888

為了不用明文顯示滔灶，app的build.gradle里配置

apply plugin: 'com.android.application'
android {
    compileSdkVersion 27
    defaultConfig {
        applicationId "com.zxn.gaode"
        minSdkVersion 15
        targetSdkVersion 27
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    signingConfigs {
        release {
            Properties properties = new Properties();
            properties
                    .load(project.rootProject.file("local.properties")
                    .newDataInputStream())
            storePassword properties.get("STORE_PASSWORD")
            keyAlias properties.get("KEY_ALIAS")
            keyPassword properties.get("KEY_PASSWORD")
            storeFile file('D:/MyGitHubDemos/MyGaoDe-asp/MyGaoDeDemo/mgdd.jks')
        }
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
            signingConfig signingConfigs.release
        }
    }
}
dependencies {
    implementation fileTree(include: ['*.jar'], dir: 'libs')
    implementation 'com.android.support:appcompat-v7:27.1.1'
    implementation 'com.android.support.constraint:constraint-layout:1.1.0'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.1'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
}

Signing中keystore值不設(shè)置

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到此，配置完成
我們在工程進行編譯打包

+

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