小编Nit*_*itt的帖子

我有一个数组:

var month: List<String> = arrayListOf("January", "February", "March")

我必须过滤列表,所以我只留下"January".

我是新手

我想更改文本,TextView点击它.

我的代码:

val text: TextView = findViewById(R.id.android_text) as TextView
    text.setOnClickListener {
        text.setText(getString(R.string.name))
    }

输出:我得到了输出,但显示了使用属性访问语法.

谁能告诉我怎么做？

提前致谢.

我有两个构建变体,一个是在调试,另一个是发布.我必须在发布模式下运行一些代码块.例如,我必须仅在发布版本中使用Firebase,有没有办法做到这一点？

在生成签名的APK时，我得到了这些警告

Warning: org.junit.internal.runners.statements.FailOnTimeout: can't find referenced class java.lang.management.ManagementFactory
Warning: org.junit.internal.runners.statements.FailOnTimeout: can't find referenced class java.lang.management.ThreadMXBean
Warning: org.junit.internal.runners.statements.FailOnTimeout: can't find referenced class java.lang.management.ThreadMXBean
Warning: org.junit.internal.runners.statements.FailOnTimeout: can't find referenced class java.lang.management.ManagementFactory
Warning: org.junit.internal.runners.statements.FailOnTimeout: can't find referenced class java.lang.management.ThreadMXBean
Warning: org.junit.internal.runners.statements.FailOnTimeout: can't find referenced class java.lang.management.ThreadMXBean
Warning: org.junit.rules.DisableOnDebug: can't find referenced class java.lang.management.ManagementFactory
Warning: org.junit.rules.DisableOnDebug: can't find referenced class java.lang.management.RuntimeMXBean
Warning: org.junit.rules.DisableOnDebug: can't find referenced class java.lang.management.ManagementFactory
Warning: org.junit.rules.DisableOnDebug: can't find referenced class java.lang.management.RuntimeMXBean

我应该怎么做才能避免这些警告？在此先感谢您的帮助。