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| override fun onCreate(savedInstanceState: Bundle?) { | |
| super.onCreate(savedInstanceState) | |
| setContentView(R.layout.activity_main) | |
| setSupportActionBar(toolbar) | |
| bottomNavigation.setOnNavigationItemSelectedListener(mOnNavigationItemSelectedListener) | |
| if (savedInstanceState == null) { | |
| initFragments() | |
| } else { | |
| atHome = savedInstanceState.getBoolean("atHome") | |
| } | |
| } | |
| private val mOnNavigationItemSelectedListener = | |
| BottomNavigationView.OnNavigationItemSelectedListener { item -> | |
| when (item.itemId) { | |
| R.id.navigation_home -> { | |
| supportFragmentManager.beginTransaction() | |
| .hide(active).show(mFragment0).commit() | |
| active = mFragment0 | |
| atHome = true | |
| return@OnNavigationItemSelectedListener true | |
| } | |
| R.id.navigation_profile -> { | |
| supportFragmentManager.beginTransaction() | |
| .hide(active).show(mFragment1).commit() | |
| active = mFragment1 | |
| atHome = false | |
| return@OnNavigationItemSelectedListener true | |
| } | |
| R.id.navigation_relation -> { | |
| supportFragmentManager.beginTransaction() | |
| .hide(active).show(mFragment2).commit() | |
| active = mFragment2 | |
| atHome = false | |
| return@OnNavigationItemSelectedListener true | |
| } | |
| R.id.navigation_members -> { | |
| supportFragmentManager.beginTransaction() | |
| .hide(active).show(mFragment3).commit() | |
| active = mFragment3 | |
| atHome = false | |
| return@OnNavigationItemSelectedListener true | |
| } | |
| R.id.navigation_requests -> { | |
| supportFragmentManager.beginTransaction() | |
| .hide(active).show(mFragment4).commit() | |
| active = mFragment4 | |
| atHome = false | |
| return@OnNavigationItemSelectedListener true | |
| } | |
| } | |
| false | |
| } | |
| override fun onCreateOptionsMenu(menu: Menu): Boolean { | |
| menuInflater.inflate(R.menu.main_menu, menu) | |
| return true | |
| } | |
| /** This function will add all fragments to the fragment manager cache | |
| * and show home fragment as current page | |
| */ | |
| private fun initFragments() { | |
| //Fragment Transaction for Initial Startup | |
| supportFragmentManager.beginTransaction() | |
| .add(R.id.contentFrame, mFragment0, R.string.fragment_title_home).commit() | |
| supportFragmentManager.beginTransaction() | |
| .add(R.id.contentFrame, mFragment1, R.string.fragment_title_profile).hide(mFragment1).commit() | |
| supportFragmentManager.beginTransaction() | |
| .add(R.id.contentFrame, mFragment2, R.string.fragment_title_relation).hide(mFragment2).commit() | |
| supportFragmentManager.beginTransaction() | |
| .add(R.id.contentFrame, mFragment3, R.string.fragment_title_members).hide(mFragment3).commit() | |
| supportFragmentManager.beginTransaction() | |
| .add(R.id.contentFrame,mFragment4, R.string.fragment_title_requests).hide(mFragment4).commit() | |
| atHome = true | |
| } |
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