在反应原生中生成apk

Question

我正在尝试生成我的第一个.apk，并且在过去几天中遇到了错误。我在stack overflow和github上搜索ans，但没有任何帮助
根据这里的说明，我可以构建调试版本，但是当运行＜code＞gradlew assembleerelease＜/code＞时，我会出错

E：\p1\placementScript\android\app\build\intermediates\res\merged\release\drawable-hdpi\node_modules_reactnavigationstack_dist_views_assets_backicon.png： 错误：未编译的 PNG 文件作为参数传递。必须首先编译为 .flat 文件。错误：解析叠加失败。

失败:构建失败，出现异常。

• 错误：任务执行失败：应用程序：processReleaseResources。无法处理资源，有关详细信息，请参阅上面的aapt输出

package.json

 {
   ....
  "dependencies": {
    "babel-preset-es2015": "^6.24.1",
    "react": "^16.4.1",
    "react-native": "^0.55.4",
    "react-native-fcm": "^16.2.3",
    "react-native-firebase": "^5.0.0",
    "react-native-push-notification": "^3.1.1",
    "react-native-view-shot": "^2.4.0",
    "react-navigation": "^2.12.1"
  }

   ....
}

和android/build.gradle

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

buildscript {
    ext {
        buildToolsVersion = "26.0.3"
        minSdkVersion = 16
        compileSdkVersion = 26
        targetSdkVersion = 26
        supportLibVersion = "26.1.0"
    }
    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.1.2'
                classpath 'com.google.gms:google-services:4.0.1'

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

allprojects {
    repositories {
        mavenLocal()
        google()
        jcenter()
        maven {
            // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
            url "$rootDir/../node_modules/react-native/android"
        }
    }
}


task wrapper(type: Wrapper) {
    gradleVersion = '4.4'
    distributionUrl = distributionUrl.replace("bin", "all")
}

和android/app/build.gradle

...
defaultConfig {
 ...
        }
          signingConfigs {
            release {
                if (project.hasProperty('MYAPP_RELEASE_STORE_FILE')) {
                    storeFile file(MYAPP_RELEASE_STORE_FILE)
                    storePassword MYAPP_RELEASE_STORE_PASSWORD
                    keyAlias MYAPP_RELEASE_KEY_ALIAS
                    keyPassword MYAPP_RELEASE_KEY_PASSWORD
                }
            }
        }
        splits {
        ...

您希望我上传的任何其他文件，请询问。

PS:-我有很多。我的src文件夹中的png文件(所有。js/etc文件是)我需要指定它们是我的资产吗

Answer 1

这是一个相当普遍的问题。查看RN问题的潜在解决方案:

https://github.com/facebook/react-native/issues/19211

一个对我有用的解决方案是

将以下代码添加到文件 node_modules/react-native/react.gradle：

doLast {
    def moveFunc = { resSuffix ->
        File originalDir = file("${resourcesDir}/drawable-${resSuffix}")
        if (originalDir.exists()) {
            File destDir = file("${resourcesDir}/drawable-${resSuffix}-v4")
            ant.move(file: originalDir, tofile: destDir)
        }
    }
    moveFunc.curry("ldpi").call()
    moveFunc.curry("mdpi").call()
    moveFunc.curry("hdpi").call()
    moveFunc.curry("xhdpi").call()
    moveFunc.curry("xxhdpi").call()
    moveFunc.curry("xxxhdpi").call()
}

在定义currentBundleTask=tasks.create（…