React-Native 利用已有项目生成新App-Android篇

Adnroid:

• 修改App的名称：

  Project/android/app/src/res/values/strings.xml

<resources>
    <string name="app_name">Your App Name</string>
</resources>

• 修改App的图标：

  Project/android/app/sec/main/res/mipmap…dpi/ic_launcher.png

  默认四个，需替换对应尺寸的App Icon
  (若图标修改无效,卸载手机此App,删掉文件夹android/build和android/app/build,重新打包)

• 修改App的启动图：

  Project/android/app/sec/main/res/mipmap…dpi/background.png

  替换四个文件夹的background.png (附：react-native启动白屏优化 ios&android)

• 修改App的包名、版本号:

    //两个java文件
Project/android/app/src/main/java/com/.../MainActivity.java

first line: package com.xxx.myProject; //包名
    
Project/android/app/src/main/java/com/.../MainApplication.java 

first line: package com.xxx.myProject; //包名

---

    //android描述文件
    Project/android/app/src/main/AndroidManifest.xml
   
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
          xmlns:tools="http://schemas.android.com/tools"
          package="com.xxx.myProject" //包名
          android:versionCode="1"
          android:versionName="0.0.1"
>

...

</manifest>

---

//两个打包脚本
    Project/android/app/build.gradle

android {
    compileSdkVersion 24
    buildToolsVersion "24.0.1" //android编译系统

    defaultConfig {
        applicationId "com.xxx.myProject" //包名
        minSdkVersion 16
        targetSdkVersion 24
        versionCode 1
        versionName "0.0.1" //包版本号
        ndk {
            abiFilters "armeabi-v7a", "x86"
        }
    }
}


    Project/android/app/BUCK
    
android_build_config(
  name = 'build_config',
  package = 'com.xxx.myProject',
)

android_resource(
  name = 'res',
  res = 'src/main/res',
  package = 'com.xxx.myProject',
)

    
    Project/android/app/build/generated/source/buildConfig/.../BuildConfig.java
    //Android Studio 编译完成
    
package com.xxx.myProject;

public final class BuildConfig {
  public static final boolean DEBUG = Boolean.parseBoolean("true");
  public static final String APPLICATION_ID = "com.xxx.myProject";
  public static final String BUILD_TYPE = "debug";
  public static final String FLAVOR = "";
  public static final int VERSION_CODE = 1;
  public static final String VERSION_NAME = "0.0.1";
}

• 修改App打包APK-name：

  Project/android/app/build.gradle

android {
        applicationVariants.all { variant ->
        variant.outputs.each { output ->
            // For each separate APK per architecture, set a unique version code as described here:
            // http://tools.android.com/tech-docs/new-build-system/user-guide/apk-splits
            def versionCodes = ["armeabi-v7a":1, "x86":2]
            def abi = output.getFilter(OutputFile.ABI)
            if (abi != null) {  // null for the universal-debug, universal-release variants
                output.versionCodeOverride =
                        versionCodes.get(abi) * 1048576 + defaultConfig.versionCode
            }
            def outputFile = output.outputFile
            if (outputFile != null && outputFile.name.endsWith('.apk')) {
                            def fileName = "xxx.apk" // APK 名
                            output.outputFile = new File(outputFile.parent, fileName)
                        }
            }
        }
}

• 替换google-services.json:

  Project/android/app/google-services.json

---