kotlin 的配置及使用

xiaoxiao2021-02-28  154

apply plugin: 'com.android.application' apply plugin: 'kotlin-android' apply plugin: 'kotlin-android-extensions' apply plugin: 'com.neenbedankt.android-apt' android { compileSdkVersion 25 buildToolsVersion "25.0.2" defaultConfig { applicationId "meiliq.hhkj.com.mykotlin" minSdkVersion 19 targetSdkVersion 25 versionCode 1 versionName "1.0" testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' } } } dependencies { compile fileTree(dir: 'libs', include: ['*.jar']) androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', { exclude group: 'com.android.support', module: 'support-annotations' }) compile 'com.android.support:appcompat-v7:25.3.1' compile 'com.android.support.constraint:constraint-layout:1.0.2' compile 'com.jakewharton:butterknife:8.4.0' apt 'com.jakewharton:butterknife-compiler:8.4.0' testCompile 'junit:junit:4.12' compile "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version" }

buildscript { ext.kotlin_version = '1.1.3-2' ext.kotlin_version = '1.1.3' repositories { jcenter() } dependencies { classpath 'com.android.tools.build:gradle:2.3.3' classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version" classpath 'com.neenbedankt.gradle.plugins:android-apt:1.8' // NOTE: Do not place your application dependencies here; they belong // in the individual module build.gradle files } }

package meiliq.hhkj.com.mykotlin import android.content.Intent import android.os.Bundle import android.support.v7.app.AppCompatActivity import android.view.View import kotlinx.android.synthetic.main.activity_main.* class MainActivity : AppCompatActivity(){ override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) btn!!.text="122333" btn!!.setOnClickListener(View.OnClickListener({ val intent = Intent(this,SecondActivity::class.java) startActivity(intent) })) } }

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