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複数あるフラグメント遷移の仕方

Last updated at Posted at 2024-10-27

立ち上げるフラグメントが複数ある時に、whenを使用した分岐方法をメモする。

val intent = Intent(activity, Workctivity::class.java).apply {
putExtra("workFragment", Workctivity.WorkFragments.WorkA.ordinal)
}
startActivity(intent)
val intent = Intent(activity, Workctivity::class.java).apply {
putExtra("workFragment", Workctivity.WorkFragments.WorkB.ordinal)
}
startActivity(intent)
enum class WorkFragments {
    WorkA,
    WorkB
}


val fragmentType = intent.getSerializableExtra("workFragment")

val fragment = when (fragmentType) {
    0 -> {
        WorkAFragment()
    }
    1 -> {
        WorkBFragment()
    }
}

supportFragmentManager
    .beginTransaction()
    .add(R.id.work_container, fragment, Fragment::class.java.name)
    .setTransition(TRANSIT_FRAGMENT_OPEN).commit()
}

enumで定義した値をordinalで渡し、when文で分岐させる。値に応じてフラグメントを切り替える。

参考

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