【Android,Arouter,Kotlin】一个小例子教你使用阿里路由框架Arouter

比眉伴天荒 2022-09-10 15:22 203阅读 0赞

### 一个小例子教你使用阿里路由框架Arouter ###

> **效果**

![在这里插入图片描述][aa73877a7d424a5fbec24e02a5cdb121.png]  
![在这里插入图片描述][0790b51770ab422c82524a1bdb0b2323.png]  
![在这里插入图片描述][8996f317c5a74767a4b6c9c80c7d97dc.png]

> **配置**

`project gradle`

buildscript {
    	...
        dependencies {
            ...
            //配置初始化预编译插件-->
            classpath 'com.alibaba:arouter-register:1.0.2'
        }
    }

`module gradle`

plugins {
        ...
        //配置插件-->
        id 'kotlin-kapt'
        id 'com.alibaba.arouter'
    }
    
    android {
        ...
    
        defaultConfig {
            ...
            //配置选项-->
            javaCompileOptions {
                annotationProcessorOptions {
                    arguments = [AROUTER_MODULE_NAME: project.getName()]
                }
            }
        }
        ...
    }
    
    dependencies {
    	...
    	//配置依赖-->
        implementation 'com.alibaba:arouter-api:1.5.0'
        kapt 'com.alibaba:arouter-compiler:1.2.2'
    }

> **Crazy Codeing**

`Routes`

object Routes {
        const val PATH_MAIN = "/main/main"
        const val PATH_LOGIN = "/main/login"
        const val PATH_AUTHENTICATION = "/main/authentication"
        const val PATH_VIP = "/main/vip"
        const val PATH_DEGRADE = "/main/degra"
    
        const val DEGRADE_SERVICE = "/degrade/service"
        const val INTERCEPTOR = "interceptor"
    
        const val EXTRA_LOGIN = 0x01
        const val EXTRA_AUTHENTICATION = EXTRA_LOGIN shl 1
        const val EXTRA_VIP = EXTRA_AUTHENTICATION shl 1
    }

`RouteHelper`

fun String.navigate() {
        ARouter.getInstance().build(this).navigation()
    }

`MainApplication`

class MainApplication : Application() {
        override fun onCreate() {
            super.onCreate()
    
            if (BuildConfig.DEBUG) {
                ARouter.openLog()
                ARouter.openDebug()
            }
    
            ARouter.init(this)
        }
    }

`MainActivity`

@Route(path = Routes.PATH_MAIN)
    class MainActivity : AppCompatActivity() {
        override fun onCreate(savedInstanceState: Bundle?) {
            super.onCreate(savedInstanceState)
            setContentView(R.layout.activity_main)
    
            findViewById<Button>(R.id.main_center).setOnClickListener {
                Routes.PATH_LOGIN.navigate()
            }
    
            findViewById<Button>(R.id.main_vip).setOnClickListener {
                Routes.PATH_VIP.navigate()
            }
    
            findViewById<Button>(R.id.main_account).setOnClickListener {
                Routes.PATH_AUTHENTICATION.navigate()
            }
    
            findViewById<Button>(R.id.main_degrade).setOnClickListener {
                "/main/unknow".navigate()
            }
        }
    }

**自定义降级策略**  
`CustomDegradeService`

@Route(path = Routes.DEGRADE_SERVICE)
    class CustomDegradeService : DegradeService {
        override fun init(context: Context?) {
            ARouter.getInstance().build(Routes.PATH_DEGRADE).greenChannel().navigation()
        }
    
        override fun onLost(context: Context?, postcard: Postcard?) {
        }
    }

**自定义拦截器**  
`CustomInterceptor`

@Interceptor(priority = 9, name = Routes.INTERCEPTOR)
    class CustomInterceptor : IInterceptor {
        private var mContext: Context? = null
    
        override fun init(context: Context?) {
            this.mContext = context
        }
    
        override fun process(postcard: Postcard?, callback: InterceptorCallback?) {
            val flag = postcard!!.extra
    
            when {
                (flag and Routes.EXTRA_LOGIN) != 0 -> {
                    //login
                    callback!!.onInterrupt(RuntimeException("need login"))
                    showToast("请先登录")
                }
                (flag and Routes.EXTRA_AUTHENTICATION) != 0 -> {
                    //authentication
                    callback!!.onInterrupt(RuntimeException("need authentication"))
                    showToast("请先实名认证")
                }
                (flag and Routes.EXTRA_VIP) != 0 -> {
                    //vip
                    callback!!.onInterrupt(RuntimeException("need become vip"))
                    showToast("请先加入会员")
                }
                else -> {
                    callback!!.onContinue(postcard)
                }
            }
        }
    
        private fun showToast(content: String) {
            Handler(Looper.getMainLooper()).post {
                Toast.makeText(mContext!!, content, Toast.LENGTH_SHORT).show()
            }
        }
    }

`AuthenticationActivity`

@Route(path = Routes.PATH_AUTHENTICATION, extras = Routes.EXTRA_AUTHENTICATION)
    class AuthenticationActivity : AppCompatActivity() {
        override fun onCreate(savedInstanceState: Bundle?) {
            super.onCreate(savedInstanceState)
            setContentView(R.layout.activity_authentication)
    
            findViewById<Button>(R.id.authentication_return).setOnClickListener {
                Routes.PATH_MAIN.navigate()
                finish()
            }
        }
    }

`DegradeActivity`

@Route(path = Routes.PATH_DEGRADE)
    class DegradeActivity : AppCompatActivity() {
        override fun onCreate(savedInstanceState: Bundle?) {
            super.onCreate(savedInstanceState)
            setContentView(R.layout.activity_degrade)
    
            findViewById<ImageView>(R.id.degrade_return).setOnClickListener {
                Routes.PATH_MAIN.navigate()
                finish()
            }
        }
    }

`LoginActivity`

@Route(path = Routes.PATH_LOGIN,extras = Routes.EXTRA_LOGIN)
    class LoginActivity : AppCompatActivity() {
        override fun onCreate(savedInstanceState: Bundle?) {
            super.onCreate(savedInstanceState)
            setContentView(R.layout.activity_login)
    
            findViewById<Button>(R.id.login_return).setOnClickListener {
                Routes.PATH_MAIN.navigate()
                finish()
            }
        }
    }

`VipActivity`

@Route(path = Routes.PATH_VIP,extras = Routes.EXTRA_VIP)
    class VipActivity : AppCompatActivity() {
        override fun onCreate(savedInstanceState: Bundle?) {
            super.onCreate(savedInstanceState)
            setContentView(R.layout.activity_vip)
    
            findViewById<Button>(R.id.vip_return).setOnClickListener {
                Routes.PATH_MAIN.navigate()
                finish()
            }
        }
    }

还有一些布局文件及简单的按钮控件

[aa73877a7d424a5fbec24e02a5cdb121.png]: /images/20220829/3d5399bb022648e09c391aa64d28d8aa.png
[0790b51770ab422c82524a1bdb0b2323.png]: /images/20220829/500d8a20b9df4663b96cd3438d7f1dfc.png
[8996f317c5a74767a4b6c9c80c7d97dc.png]: /images/20220829/f836a2bbf7404387808b259ee1c4c050.png