Android BuildConfig字段生成字符串不正确

Question

在开始一个新项目的最后一天,我在构建配置中创建了一些变量,作为在发布和调试版本之间单独处理它们的一个好习惯,如下所示:

...
buildTypes {
    release {
        minifyEnabled false
        buildConfigField("String", "PARSE_APP_ID", "xxxxxxxxxxxxxxxxxxxxxxxxxxx")
        buildConfigField("String", "PARSE_CLIENT_ID", "xxxxxxxxxxxxxxxxxxxxxxxxxx")
        buildConfigField("String", "FACEBOOK_APP_ID", "999999999999999")
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
    }
    debug{
        minifyEnabled false
        buildConfigField("String", "PARSE_APP_ID", "xxxxxxxxxxxxxxxxxxxxxxxxxxx")
        buildConfigField("String", "PARSE_CLIENT_ID", "xxxxxxxxxxxxxxxxxxxxxxxxxx")
        buildConfigField("String", "FACEBOOK_APP_ID", "999999999999999")
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
    }
}
...

问题是它没有正确创建字符串它是直接打印字符串没有这样的引号:

public final class BuildConfig {
  .....
  // Fields from build type: debug
  public static final String FACEBOOK_APP_ID = 99999999999999999;
  public static final String PARSE_APP_ID = xxxxxxxxxxxxxxxxxxxxxxxx;
  public static final String PARSE_CLIENT_ID = xxxxxxxxxxxxxxxxxxxxxxxxx;
}

显然这会给你编译错误,我试图在stackoverflow中找到如何修复这个,因为这是在我的构建中导致错误,没有找到任何关于这个.如何使用引号正确地使用gradle打印字符串？

Answer 1

写完之后我找到了方法,看起来这些值的打印方式与它们的定义方式相同,所以如果你向它添加转义引号就可以了,例如:

buildTypes {
        release {
            minifyEnabled false
            buildConfigField("String", "PARSE_APP_ID", '"xxxxxxxxxxxxxxxxxxxxxxxx"')
            buildConfigField("String", "PARSE_CLIENT_ID", '"xxxxxxxxxxxxxxxxxxxxxxxxx"')
            buildConfigField("String", "FACEBOOK_APP_ID", '"999999999999999"')
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }

之后,Rebuild将正确打印Strings值:

public final class BuildConfig {
  ....
  // Fields from build type: debug
  public static final String FACEBOOK_APP_ID = "999999999999999999";
  public static final String PARSE_APP_ID = "xxxxxxxxxxxxxxxxxxxxxxxxxxx";
  public static final String PARSE_CLIENT_ID = "xxxxxxxxxxxxxxxxxxxxxxxx";
}

Answer 2

在应用程序 build.gradle 中

def buildTimeAndVersion = releaseTime() + "-" + getSvnVersion()    
buildTypes {
    debug {
        signingConfig signingConfigs.config
        buildConfigField "String", 'BIULD_TIME', "\"${buildTimeAndVersion}\""
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
....
}

static def releaseTime() {
return new Date().format("yyyyMMdd", TimeZone.getDefault())
}

def getSvnVersion() {
def pro = ("svnversion -c " + getBuildDir().parent).execute()
pro.waitFor()
def version = pro.in.text
Pattern p = Pattern.compile("(\\d+\\:)?(\\d+)\\D?")
Matcher m = p.matcher(version)
if (m.find()) {
    version = m.group(m.groupCount())
}
try {
    return version
} catch (e) {
    println e.getMessage()
}
return 0
}

然后在BuildConfig文件中

public final class BuildConfig {
public static final boolean DEBUG = Boolean.parseBoolean("true"); 
public static final String APPLICATION_ID = "xxx.xxxxxxxx.xxx"; 
public static final String BUILD_TYPE = "debug";  
public static final String FLAVOR = "";  
public static final int VERSION_CODE = 53;  
public static final String VERSION_NAME = "5.4.4";  
// Fields from build type: debug  
public static final String BIULD_TIME = "20181030-2595";  
}