Android 在NavigationDrawer中动态添加片段

我使用的是安卓系统中的导航抽屉。支持：designlibrary，它工作正常，但现在我改用mikepenz的，因为它有明显的功能。但现在我被卡住了

我想动态添加

Fragment

，就像我在

android中所做的那样。支持：设计
library，在
android中。支持：设计
library，我使用
SharedReferences
，从如下设置中添加/删除
Fragment
：

mNavigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
    @Override
    public boolean onNavigationItemSelected(MenuItem menuItem) {
       mDrawerLayout.closeDrawers();
       if (savedPreferences.getBoolean("add_frag", true)) {
             if (menuItem.getTitle() == "frag") {
             FragmentTransaction xfragmentTransaction = mFragmentManager.beginTransaction();
             xfragmentTransaction.replace(R.id.containerView, new fragFragment()).commit();
       }
    }
}

if (position == 0) {                      
    FragmentTransaction fragmentTransaction = mFragmentManager.beginTransaction();
    fragmentTransaction.replace(R.id.containerView, new fragFragment()).commit();
}

现在如何使用
MaterialDrawer

通过
switch
语句或使用类似于以下内容的方法可以更改片段：

mNavigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
    @Override
    public boolean onNavigationItemSelected(MenuItem menuItem) {
       mDrawerLayout.closeDrawers();
       if (savedPreferences.getBoolean("add_frag", true)) {
             if (menuItem.getTitle() == "frag") {
             FragmentTransaction xfragmentTransaction = mFragmentManager.beginTransaction();
             xfragmentTransaction.replace(R.id.containerView, new fragFragment()).commit();
       }
    }
}

if (position == 0) {                      
    FragmentTransaction fragmentTransaction = mFragmentManager.beginTransaction();
    fragmentTransaction.replace(R.id.containerView, new fragFragment()).commit();
}

但这些语句无助于使用
SharedReferences
添加片段。如果我在上面的语句中尝试
SharedPreferences
，
Fragment
不会改变，这一点非常明显

请帮忙
 代码看起来与您当前的代码非常相似

首先，构建抽屉，添加一些项目，并添加一个侦听器。此侦听器允许您执行所需的任何功能：

//Create the drawer
new DrawerBuilder()
    .withActivity(this)
    .withToolbar(toolbar)
    .withAccountHeader(headerResult) //set the AccountHeader we created earlier for the header
    .addDrawerItems(
            new PrimaryDrawerItem().withName("Item 1").withIdentifier(1),
            new PrimaryDrawerItem().withName("Item 2").withIdentifier(2)
    )
    .withOnDrawerItemClickListener(new Drawer.OnDrawerItemClickListener() {
        @Override
        public boolean onItemClick(View view, int position, IDrawerItem drawerItem) {
            if (drawerItem != null) {
                if (drawerItem.getIdentifier() == 1) {
                    //do what you want to do for the first item
                } else if (drawerItem.getIdentifier() == 2) {
                    //do whatever you want to do for the second item
                }
            }

            return false;
        }
    })
    .withSavedInstance(savedInstanceState)
    .build();


你这边可能还有其他一些困惑
SharedReference
s在应用程序中存储数据。一般来说，这与
MaterialDrawer
没有多大关系，也与
Fragment
s
没有多大关系。代码看起来与当前的代码非常相似

首先，构建抽屉，添加一些项目，并添加一个侦听器。此侦听器允许您执行所需的任何功能：

//Create the drawer
new DrawerBuilder()
    .withActivity(this)
    .withToolbar(toolbar)
    .withAccountHeader(headerResult) //set the AccountHeader we created earlier for the header
    .addDrawerItems(
            new PrimaryDrawerItem().withName("Item 1").withIdentifier(1),
            new PrimaryDrawerItem().withName("Item 2").withIdentifier(2)
    )
    .withOnDrawerItemClickListener(new Drawer.OnDrawerItemClickListener() {
        @Override
        public boolean onItemClick(View view, int position, IDrawerItem drawerItem) {
            if (drawerItem != null) {
                if (drawerItem.getIdentifier() == 1) {
                    //do what you want to do for the first item
                } else if (drawerItem.getIdentifier() == 2) {
                    //do whatever you want to do for the second item
                }
            }

            return false;
        }
    })
    .withSavedInstance(savedInstanceState)
    .build();


你这边可能还有其他一些困惑
SharedReference
s在应用程序中存储数据。一般来说，这与
MaterialDrawer
没有多大关系，也与
Fragment
s
基本上，我使用SharedReferences来填充导航抽屉。基本上，我使用SharedReferences来填充导航抽屉。