android studio rc3.0 升級，編譯問題解決辦法

參考官網： https://developer.android.com/studio/build/gradle-plugin-3-0-0-migration.html

1、版本升級

1. gradle升級到4.1
2. android gradle plugin升級到3.0.0
3. buildToolsVersion 升級到26.0.2
4. compileSdkVersion升級到26
5. 加入google()倉庫

  ##gradle升級到4.1

distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip

buildscript {
    repositories {
        jcenter()
        mavenLocal()
        google() //##加入google()倉庫

    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.0.0'//android gradle plugin升級到3.0.0

    }
}

allprojects {

    repositories {
        jcenter()
        mavenLocal()
        google()//##加入google()倉庫

    }

}

 

android {
    compileSdkVersion 26 //##compileSdkVersion升級到26

    buildToolsVersion '26.0.2' //##buildToolsVersion 升級到26.0.2

  }

 

2、build.gradle加入flavorDimension

• flavorDimension定義

 android {
   flavorDimensions "tier", "minApi" //##flavorDimension定義，且須要都是用上

    productFlavors {
        
        dev {
            minSdkVersion 14
            dimension "minApi" //##flavorDimension使用
        }
        prod {
            minSdkVersion 14
            dimension "tier" 
        }

        wandoujia {
            dimension "tier"
        }
    }
}

 

 

3、support-v4包升級

•  com.android.support-v4升級到26.1.2
• android.enableAapt2=false

 compile 'com.android.support:support-v4:26.1.0'

　　

##gradle-wrapper.properties
android.enableAapt2=false

　　

4、包找不到

• 找不到類：android.util.FloatMath.sqrt()

##Math.sqrt()替換
FloatMath.sqrt(squaredNorm);
=>
(float)Math.sqrt(squaredNorm)

• 找不到類：org.apach.util.encodingUtils

compile 'org.apache.httpcomponents:httpcore:4.4.4'

• 找不到類：android.support.v4.view.KeyEventCompat;

KeyEventCompat.hasNoModifiers(event)
=>
event.hasNoModifiers() //event是KeyEvent對象

• 找不到類：org.apache.http.conn.util.InetAddressUtils;

 1            String ip = getLocalIpAddress();
 2             if (!InetAddressUtils.isIPv4Address(ip)) {
 3                 return mac_s;
 4             }
 5             InetAddress ipAddress = InetAddress.getByName(ip);
 6             if (ipAddress == null) {
 7                 return mac_s;
 8             }
 9 
10 =>
11             String ip = getLocalIpAddress();
12             InetAddress ipAddress = InetAddress.getByName(ip);
13             if (ipAddress.getAddress().length != 4) {
14                 return mac_s;
15             }
16             if (ipAddress == null) {
17                 return mac_s;
18             }