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android kotlin事件监听

眸晓 2023-02-14 阅读 140


1

fun incrementCount(view: View) {
handleCounter(1)
}

<Button
.....
android:onClick="incrementCount" />

2

<Button
.....
android:id="@+id/btn_increment" />

override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
initView()
}

private fun initView() {
val btn_increment: Button = findViewById(R.id.btn_increment)
btn_increment.setOnClickListener { btn_increment() }
}

private fun btn_increment() { // 参数不需要加入 view: View
handleCounter(1)
}


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