java - 使用 gradle 的应用程序出现错误“未找到本机方法”

Question

我使用 gradle 生成 apk。安装后，发布的版本出现错误： java.lang.UnsatisfiedLinkError: Native method not found: com.fss.e.b.a:(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;

但是调试的看起来不错。我写的 build.gradle 如下：

apply plugin: 'android'

dependencies {
    compile fileTree(dir: 'libs', include: '*.jar')
    compile project(':fss:libs:actionbarsherlock')
    compile project(':fss:libs:library')
    compile project(':library')
}

android {
    compileSdkVersion 17
    buildToolsVersion "18.0.1"
    signingConfigs {
        myConfig{

        }
    }


    buildTypes{

        release {
            signingConfig  signingConfigs.myConfig
        }


    }

    sourceSets {
        main {
            manifest.srcFile 'AndroidManifest.xml'
            java.srcDirs = ['src']
            resources.srcDirs = ['src']
            aidl.srcDirs = ['src']
            renderscript.srcDirs = ['src']
            res.srcDirs = ['res']
            assets.srcDirs = ['assets']
        }

        // Move the tests to tests/java, tests/res, etc...
        instrumentTest.setRoot('tests')
        debug.setRoot('build-types/debug')
        release.setRoot('build-types/release')
    }
}
tasks.withType(Compile) {  
    options.encoding = "UTF-8"  
}  
task copyNativeLibs(type: Copy) {
  from fileTree(dir: 'libs', include: '**/*.so' )
    into  'build/native-libs'
}

tasks.withType(Compile) { compileTask -> compileTask.dependsOn copyNativeLibs }

clean.dependsOn 'cleanCopyNativeLibs'

tasks.withType(com.android.build.gradle.tasks.PackageApplication) { pkgTask ->
    pkgTask.jniDir new File('build/native-libs')
}

Answer 1

添加这些以保留本机方法。错误将得到解决。

-keepclasseswithmembernames class * {
    native <methods>;
}