var frameLayoutDebug = findViewById<FrameLayout>(R.id.frameLayoutDebug)
        frameLayoutDebug.visibility=View.VISIBLE
			
			

			
var textViewBuildType = findViewById<TextView>(R.id.textViewBuildType)
textViewBuildType.text = BuildConfig.BUILD_TYPE + " 内测版"			
			
			

Java 用法

			
runOnUiThread(() -> {

});			
			
			

切到 Kotlin

			
	runOnUiThread {
       	qrcodeFrameLayout.visibility = View.VISIBLE
    }