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| | | package com.duqing.missions; |
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| | | import androidx.navigation.NavController; |
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| | | import androidx.navigation.Navigation; |
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| | | import androidx.navigation.ui.NavigationUI; |
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| | | import androidx.viewpager2.widget.ViewPager2; |
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| | | import com.duqing.missions.base.BaseActivity; |
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| | | import com.duqing.missions.base.FragmentAdapter; |
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| | | import com.duqing.missions.databinding.ActivityMainBinding; |
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| | | import com.duqing.missions.ui.main.hall.HallFragment; |
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| | | import com.duqing.missions.ui.main.home.HomeFragment; |
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| | | import com.duqing.missions.ui.main.mine.MineFragment; |
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| | | |
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| | | public class MainActivity extends BaseActivity<ActivityMainBinding> { |
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| | | |
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| | | @Override |
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| | | public void initViews() { |
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| | | // Passing each menu ID as a set of Ids because each |
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| | | // menu should be considered as top level destinations. |
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| | | NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment_activity_main); |
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| | | NavigationUI.setupWithNavController(binding.navView, navController); |
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| | | setStatusBarBgColor(R.color.red); |
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| | | setStatusBarTextColor(false); |
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| | | binding.navView.setOnItemSelectedListener(item -> { |
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| | | for(int i = 0 ; i < binding.navView.getMenu().size() ; i ++){ |
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| | | if(item.getItemId() == binding.navView.getMenu().getItem(i).getItemId()){ |
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| | | binding.viewPager2.setCurrentItem(i); |
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| | | return true; |
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| | | } |
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| | | } |
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| | | return false; |
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| | | }); |
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| | | final FragmentAdapter fragmentAdapter = new FragmentAdapter(this); |
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| | | fragmentAdapter.addFragment(new HomeFragment()); |
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| | | fragmentAdapter.addFragment(new HallFragment()); |
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| | | fragmentAdapter.addFragment(new MineFragment()); |
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| | | //设置当前可见Item左右可见page数，次范围内不会被销毁 |
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| | | //禁用预加载 |
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| | | binding.viewPager2.setOffscreenPageLimit(ViewPager2.OFFSCREEN_PAGE_LIMIT_DEFAULT); |
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| | | binding.viewPager2.setAdapter(fragmentAdapter); |
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| | | binding.viewPager2.setCurrentItem(0); |
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| | | binding.viewPager2.setUserInputEnabled(false); //true:滑动，false：禁止滑动 |
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| | | binding.viewPager2.registerOnPageChangeCallback(new ViewPager2.OnPageChangeCallback() { |
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| | | @Override |
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| | | public void onPageSelected(int position) { |
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| | | binding.navView.getMenu().getItem(position).setChecked(true); |
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| | | } |
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| | | }); |
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| | | binding.viewPager2.setCurrentItem(0);//设置默认第 |
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| | | } |
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| | | } |
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