Android Studio 3.0 | Kotlin 測試

標籤：alt   src   cli   linx   button   import   lin   view   width   

Google官方支援了，體驗一下。 

XML

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:app="http://schemas.android.com/apk/res-auto"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical"    >    <TextView        android:id="@+id/textview"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="Hello World!"    />    <Button        android:id="@+id/button"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="change text in textview"        android:onClick="Button_onClick"/>    <Button        android:id="@+id/button2"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="Test Toast function" /></LinearLayout>

kt

package com.example.kotlindemoimport android.support.v7.app.AppCompatActivityimport android.os.Bundleimport android.view.Viewimport android.widget.Toastimport kotlinx.android.synthetic.main.activity_main.*class MainActivity : AppCompatActivity() {    override fun onCreate(savedInstanceState: Bundle?) {        super.onCreate(savedInstanceState)        setContentView(R.layout.activity_main)        button2.setOnClickListener(View.OnClickListener { Toast.makeText(this, "Test Toast", Toast.LENGTH_SHORT).show() })    }    fun Button_onClick(view: View){        textview.setText("Test change");    }}

 

Android Studio 3.0 | Kotlin 測試