英文:
Expecting Member Declaration kotlin androd studio
问题
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.widget.Button
class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
}
val btn = findViewById<Button>(R.id.mybutton)
btn.text = '点击我'
}
英文:
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.widget.Button
class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
}
val btn = findViewById<Button>(R.id.mybutton)
btn.text = 'click me'
}
it wont run it errors saying expecting member declaration its running android 5.0 as min sdk
I'm trying to change the button text
答案1
得分: 0
你将一些代码放在了 onCreateMethod 外面。你需要将闭合括号移到所有代码之后，像这样：
class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
val btn = findViewById<Button>(R.id.mybutton)
btn.text = 'click me'
} // <----
}
英文:
You put some of your code outside the onCreateMethod. You need to move the closing bracket after all your code like this:
class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
val btn = findViewById<Button>(R.id.mybutton)
btn.text = 'click me'
} // <----
}
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