Android 用片段替换NavigationView
我正在用片段替换NavigationView,并进一步处理该视图。(因为NavigationView是FrameLayout的子级) 单击导航视图中的任何项目时。。我用一个片段覆盖导航视图。如果有人点击后退按钮。。我想回到导航视图 用片段替换NavigationView时,我放置了一个工具栏 问题 a。工具栏显示了一个“返回”链接,但它不起作用 b。工具栏显示“设置”菜单-我不想在片段上显示这个。但是我仍然需要MainActivity工具栏上的“设置”菜单 c。工具栏似乎位于状态栏的下方-如何将工具栏放置在片段中状态栏的下方 已尝试选项Android 用片段替换NavigationView,android,android-fragments,android-toolbar,navigationview,Android,Android Fragments,Android Toolbar,Navigationview,我正在用片段替换NavigationView,并进一步处理该视图。(因为NavigationView是FrameLayout的子级) 单击导航视图中的任何项目时。。我用一个片段覆盖导航视图。如果有人点击后退按钮。。我想回到导航视图 用片段替换NavigationView时,我放置了一个工具栏 问题 a。工具栏显示了一个“返回”链接,但它不起作用 b。工具栏显示“设置”菜单-我不想在片段上显示这个。但是我仍然需要MainActivity工具栏上的“设置”菜单 c。工具栏似乎位于状态栏的下方-如何将
@Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.nav_camera) {
// Handle the camera action
} else if (id == R.id.nav_gallery) {
} else if (id == R.id.nav_slideshow) {
} else if (id == R.id.nav_manage) {
} else if (id == R.id.nav_share) {
} else if (id == R.id.nav_send) {
}
ItemsFragment fragment = new ItemsFragment();
android.support.v4.app.FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
fragmentTransaction.replace(R.id.nav_view, fragment);
// fragmentTransaction.setTransition();
fragmentTransaction.addToBackStack("LeftMainNavDrawer");
fragmentTransaction.commit();
// DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
// drawer.closeDrawer(GravityCompat.START);
return true;
}
a。MainActivity的OnBackPressed方法-fragmentManager.popUpStack()
b。片段-fragmentManager.popUpStack()的onoptionItemSelected()方法
c。在工具栏上的onClick方法中创建了一个侦听器:fragmentManager.popUpStack()
截图:
这是我的密码:
MainActivity:>onNavigationItemSelected()
片段
package com.example.deep_kulshreshtha.expandablelistnavdrawer;
import android.content.Context;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.GridLayoutManager;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Toast;
import com.example.deep_kulshreshtha.expandablelistnavdrawer.dummy.DummyContent;
import com.example.deep_kulshreshtha.expandablelistnavdrawer.dummy.DummyContent.DummyItem;
import java.util.List;
/**
* A fragment representing a list of Items.
* <p/>
* Activities containing this fragment MUST implement the {@link OnListFragmentInteractionListener}
* interface.
*/
public class ItemsFragment extends Fragment {
// TODO: Customize parameter argument names
private static final String ARG_COLUMN_COUNT = "column-count";
// TODO: Customize parameters
private int mColumnCount = 1;
private OnListFragmentInteractionListener mListener;
/**
* Mandatory empty constructor for the fragment manager to instantiate the
* fragment (e.g. upon screen orientation changes).
*/
public ItemsFragment() {
}
// TODO: Customize parameter initialization
@SuppressWarnings("unused")
public static ItemsFragment newInstance(int columnCount) {
ItemsFragment fragment = new ItemsFragment();
Bundle args = new Bundle();
args.putInt(ARG_COLUMN_COUNT, columnCount);
fragment.setArguments(args);
return fragment;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments() != null) {
mColumnCount = getArguments().getInt(ARG_COLUMN_COUNT);
}
setHasOptionsMenu(false);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_item_list, container, false);
RecyclerView recyclerView = (RecyclerView) view.findViewById(R.id.list);
// Set the adapter
// if (view instanceof RecyclerView) {
Context context = view.getContext();
// RecyclerView recyclerView = (RecyclerView) view;
if (mColumnCount <= 1) {
recyclerView.setLayoutManager(new LinearLayoutManager(context));
} else {
recyclerView.setLayoutManager(new GridLayoutManager(context, mColumnCount));
}
recyclerView.setAdapter(new MyItemRecyclerViewAdapter(DummyContent.ITEMS, mListener));
// }
Toolbar toolbar = (Toolbar) view.findViewById(R.id.itemsToolbarNavDrawer);
/*toolbar.setNavigationOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(getActivity(), "Inside Toolbar click", Toast.LENGTH_LONG).show();
}
});*/
AppCompatActivity appCompatActivity = (AppCompatActivity) getActivity();
appCompatActivity.setSupportActionBar(toolbar);
appCompatActivity.getSupportActionBar().setDisplayHomeAsUpEnabled(true);
appCompatActivity.getSupportActionBar().setDisplayShowHomeEnabled(true);
return view;
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
menu.removeItem(R.id.action_settings);
super.onCreateOptionsMenu(menu, inflater);
}
@Override
public void onAttach(Context context) {
super.onAttach(context);
if (context instanceof OnListFragmentInteractionListener) {
mListener = (OnListFragmentInteractionListener) context;
} else {
throw new RuntimeException(context.toString()
+ " must implement OnListFragmentInteractionListener");
}
}
@Override
public void onDetach() {
super.onDetach();
mListener = null;
}
/**
* This interface must be implemented by activities that contain this
* fragment to allow an interaction in this fragment to be communicated
* to the activity and potentially other fragments contained in that
* activity.
* <p/>
* See the Android Training lesson <a href=
* "http://developer.android.com/training/basics/fragments/communicating.html"
* >Communicating with Other Fragments</a> for more information.
*/
public interface OnListFragmentInteractionListener {
// TODO: Update argument type and name
void onListFragmentInteraction(DummyItem item);
}
}
package com.example.deep_kulshreshtha.expandablelistnavdrawer;
导入android.content.Context;
导入android.os.Bundle;
导入android.support.annotation.Nullable;
导入android.support.v4.app.Fragment;
导入android.support.v7.app.AppActivity;
导入android.support.v7.widget.GridLayoutManager;
导入android.support.v7.widget.LinearLayoutManager;
导入android.support.v7.widget.RecyclerView;
导入android.support.v7.widget.Toolbar;
导入android.util.Log;
导入android.view.LayoutInflater;
导入android.view.Menu;
导入android.view.MenuInflater;
导入android.view.MenuItem;
导入android.view.view;
导入android.view.ViewGroup;
导入android.widget.Toast;
导入com.example.deep_kulshreshtha.expandablelistnavdrawer.dummy.DummContent;
导入com.example.deep_kulshreshtha.expandablelistnavdrawer.dummy.DummContent.DummyItem;
导入java.util.List;
/**
*表示项目列表的片段。
*
*包含此片段的活动必须实现{@link OnListFragmentInteractionListener}
*接口。
*/
公共类ItemsFragment扩展了片段{
//TODO:自定义参数参数名称
私有静态最终字符串ARG\u COLUMN\u COUNT=“COLUMN COUNT”;
//TODO:自定义参数
私有int mColumnCount=1;
私有OnListFragmentInteractionListener-MLListener;
/**
*片段管理器实例化
*碎片(如屏幕方向改变时)。
*/
公共项目片段(){
}
//TODO:自定义参数初始化
@抑制警告(“未使用”)
公共静态项片段newInstance(int columnCount){
ItemsFragment片段=新的ItemsFragment();
Bundle args=新Bundle();
args.putInt(ARG\u COLUMN\u COUNT,columnCount);
fragment.setArguments(args);
返回片段;
}
@凌驾
创建时的公共void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
如果(getArguments()!=null){
mColumnCount=getArguments().getInt(ARG\u COLUMN\u COUNT);
}
设置选项菜单(错误);
}
@凌驾
创建视图上的公共视图(布局、充气机、视图组容器、,
Bundle savedInstanceState){
视图=充气机。充气(R.layout.fragment\u item\u list,container,false);
RecyclerView RecyclerView=(RecyclerView)view.findViewById(R.id.list);
//设置适配器
//如果(查看RecyclerView的实例){
Context=view.getContext();
//RecyclerView RecyclerView=(RecyclerView)视图;
如果(mColumnCount在主活动中添加1个框架布局并将其id作为容器,那么在java代码中
fragmentTransaction=getSupportFragmentManager().beginTransaction();
fragmentTransaction.replace(R.id.main_容器,new HomeFragment());
fragmentTransaction.commit();
在主活动中添加1个框架布局并将其id作为容器。然后在java代码中
fragmentTransaction=getSupportFragmentManager().beginTransaction();
fragmentTransaction.replace(R.id.main_容器,new HomeFragment());
fragmentTransaction.commit();
我想出了一个解决方案..看起来“Toolbar”类对于整个应用程序只有一个实例
当我使用活动的onOptionsItemSelected方法时…我得到了控件。在这里,我可以弹出Upstack()并转到NavigationView
#
还没有弄清楚如何在状态栏下保持布局。:android:fitsystemwindows=“true”…似乎不起作用。我想出了一个解决方案。.看起来“Toolbar”类对整个应用程序只有一个实例
当我使用活动的onOptionsItemSelected方法时…我得到了控件。在这里,我可以弹出Upstack()并转到NavigationView
#
还需要弄清楚如何将布局保持在状态栏下。:android:fitsystemwindows=“true”…似乎不起作用。想法是用片段替换导航视图-这是可行的。不起作用的是…从片段返回导航视图的返回按钮。fragmentTransaction.addToBackStack(“null”);是的,这没有帮助。我想了解的是……如果我们从片段中按下后退按钮->我们可以转到原始框架布局吗?是的,我们可以,但我用不同的方式完成。这是主活动。我给空容器,每当我执行事务时,我都用我想要的片段替换容器。想法是替换Na带片段的vigationView-这正在工作。不工作的是…返回按钮从片段到NavigationView.fragmentTransaction.addToB
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:orientation="vertical"
android:layout_height="match_parent"
android:layout_width="match_parent" >
<android.support.v7.widget.Toolbar
android:id="@+id/itemsToolbarNavDrawer"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="@style/AppTheme.PopupOverlay" />
<android.support.v7.widget.RecyclerView
android:id="@+id/list"
android:name="com.example.deep_kulshreshtha.expandablelistnavdrawer.ItemsFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginLeft="16dp"
android:layout_marginRight="16dp"
app:layoutManager="LinearLayoutManager"
tools:context="com.example.deep_kulshreshtha.expandablelistnavdrawer.ItemsFragment"
tools:listitem="@layout/fragment_item"
android:background="@android:color/white"/>
</LinearLayout>