小编T. *_*art的帖子

我在操作一些字节码时遇到了一个问题,其中final Stringjava编译器(Java 8)没有内联某个常量,请参阅下面的示例:

public class MyTest
{
  private static final String ENABLED  = "Y";
  private static final String DISABLED = "N";

  private static boolean isEnabled(String key) {
      return key.equals("A");
  }

  private static String getString(String key, String value) {
      return key + value;
  }

  public static void main(String[] args) throws Exception {
    String flag = getString("F", isEnabled("A") ? ENABLED : DISABLED);
    System.out.println(flag);

    String flag2 = getString("F", isEnabled("A") ? ENABLED : DISABLED);
    System.out.println(flag2);
  }
}

使用javac生成的字节码(1.8.0_101)

public static void main(java.lang.String[]) …

我正在使用proguard来减少我的apk大小.调试apk从90mb减少到55mb,但签名的apk是71mb.这是我的build.gradle代码:

apply plugin:'com.android.application'

android {

signingConfigs {
    XXXX {
        keyAlias 'xxxx'
        keyPassword 'xxxx'
        storeFile file('/Users/xxxx.jks')
        storePassword 'xxxxxx'
    }
}
compileSdkVersion 23
buildToolsVersion "24.0.2"
defaultConfig {
    applicationId "com.xxxx"
    minSdkVersion 14
    targetSdkVersion 22
    versionCode 61
    versionName "4.1.8.1"
    multiDexEnabled true
    signingConfig signingConfigs.XXXX

    ndk {
        abiFilters "armeabi", "armeabi-v7a", "x86", "mips"
    }
}

buildTypes {
    release {
        minifyEnabled true
        shrinkResources true
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        signingConfig signingConfigs.XXXX
    }
    debug {
        minifyEnabled true
        shrinkResources true
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        signingConfig signingConfigs.XXXX
    }
}
productFlavors {
}

dexOptions { …