同时使用NavigationDrawer和Tabs(Android)
我正在构建一个应用程序,它有一些选项卡,旁边有一个同时使用NavigationDrawer和Tabs(Android),android,android-fragments,navigation-drawer,android-tabs,Android,Android Fragments,Navigation Drawer,Android Tabs,我正在构建一个应用程序,它有一些选项卡,旁边有一个导航抽屉。我的问题是我无法显示我的NavigationDrawer中片段的内容:当我单击它时,什么都没有发生,我仍然看到我的选项卡,但没有新片段 我遵循了这些教程,一个用于NavigationDrawer,另一个用于选项卡,两者都是单独工作的 MainActivity.java(如果您需要更多代码,请告诉我,我将编辑我的帖子并添加它) public类MainActivity扩展AppCompatActivity实现FragmentDrawer
导航抽屉
。我的问题是我无法显示我的NavigationDrawer
中片段的内容:当我单击它时,什么都没有发生,我仍然看到我的选项卡,但没有新片段
我遵循了这些教程,一个用于NavigationDrawer,另一个用于选项卡,两者都是单独工作的
MainActivity.java(如果您需要更多代码,请告诉我,我将编辑我的帖子并添加它)
public类MainActivity扩展AppCompatActivity实现FragmentDrawer.FragmentDrawerListener{
私有工具栏mToolbar;
私人碎片抽屉抽屉碎片;
私人摊位摊位;
私人视页机视页机;
私有int[]选项卡图标={
R.drawable.ic_favorite_white_24dp,
R.drawable.ic_灯泡_外形_白色_24dp,
R.drawable.ic_面_白_24dp
};
私人消防队;
私有FirebaseAuth.AuthStateListener mAuthListener;
@凌驾
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mAuth=FirebaseAuth.getInstance();
mToolbar=(工具栏)findviewbyd(R.id.Toolbar);
设置支持操作栏(mToolbar);
Log.i(“USER”,mAuth.getCurrentUser().getEmail().toString());
ActionBar ActionBar=getSupportActionBar();
if(actionBar!=null){
Log.d(“操作栏?”,actionBar.toString());
actionBar.setDisplayShowHomeEnabled(真);
}
抽屉碎片=(碎片抽屉)
getSupportFragmentManager().findFragmentById(R.id.fragment\u导航\u抽屉);
抽屉碎片设置(R.id.fragment\u navigation\u drawer,(抽屉布局)findViewById(R.id.drawer\u布局),mToolbar);
付款人片段。setDrawerListener(本);
//在应用程序启动时显示第一个导航抽屉视图
显示视图(0);
viewPager=(viewPager)findViewById(R.id.viewPager);
设置viewPager(viewPager);
tabLayout=(tabLayout)findViewById(R.id.tabs);
tabLayout.setupWithViewPager(viewPager);
setupTabIcons();
mAuthListener=new FirebaseAuth.AuthStateListener(){
@凌驾
AuthStateChanged上的公共void(@NonNull FirebaseAuth FirebaseAuth){
FirebaseUser=firebaseAuth.getCurrentUser();
如果(用户!=null){
//用户已登录
Log.d(“标记”、“onAuthStateChanged:signed_in:”+user.getUid());
}否则{
//用户已注销
Log.d(“标记”、“onAuthStateChanged:signed_out”);
}
// ...
}
};
// ...
}
私有void setupTabIcons(){
tabLayout.getTabAt(0).setIcon(tabIcons[0]);
tabLayout.getTabAt(1).setIcon(tabIcons[1]);
tabLayout.getTabAt(2).setIcon(tabIcons[2]);
}
@凌驾
公共布尔onCreateOptions菜单(菜单){
//为菜单充气;这会将项目添加到操作栏(如果存在)。
getMenuInflater().充气(右菜单菜单菜单主菜单);
返回true;
}
@凌驾
公共布尔值onOptionsItemSelected(菜单项项){
//处理操作栏项目单击此处。操作栏将
//自动处理Home/Up按钮上的点击,只要
//在AndroidManifest.xml中指定父活动时。
int id=item.getItemId();
//noinspection SimplifiableIf语句
if(id==R.id.action\u设置){
返回true;
}
返回super.onOptionsItemSelected(项目);
}
@凌驾
选定的绘图区域上的公共void(视图,int位置){
显示视图(位置);
}
私有void显示视图(内部位置){
片段=空;
String title=getString(R.String.app\u name);
开关(位置){
案例0:
fragment=新的HomeFragment();
title=getString(R.string.title\u home);
Log.i(“显示视图”,“显示主片段”);
打破
案例1:
fragment=新的FriendsFragment();
title=getString(R.string.title\u friends);
Log.i(“显示视图”、“显示朋友片段”);
打破
案例2:
fragment=newmessagesFragment();
title=getString(R.string.title\u消息);
Log.i(“显示视图”,“显示消息片段”);
打破
违约:
打破
}
if(片段!=null){
FragmentManager FragmentManager=getSupportFragmentManager();
FragmentTransaction FragmentTransaction=fragmentManager.beginTransaction();
fragmentTransaction.replace(R.id.container\u body,fragment);
fragmentTransaction.commit();
//设置工具栏标题
getSupportActionBar().setTitle(标题);
}
}
专用无效设置ViewPager(ViewPager ViewPager){
ViewPagerAdapter适配器=新的ViewPagerAdapter(getSupportFragmentManager());
addFragment(新的OneFragment(),“一”);
addFragment(新的TwoFragment(),“TWO”);
addFragment(新的ThreeFragment(),“THREE”);
viewPager.setAdapter(适配器);
}
类ViewPagerAdapter扩展了FragmentPagerAdapter{
私有最终列表MFFragmentList=new ArrayList();
私有最终列表MFFragmentTitleList=new ArrayList();
公共视图页面编辑器(碎片管理器){
高级经理;
}
@凌驾
公共片段getItem(int位置){
返回MFFragmentList.get(位置);
}
@凌驾
public int getCount(){
返回MFFragmentList.size();
}
public void addFragment(片段片段,字符串标题){
添加(片段);
MFFragmentTitleList.add(标题);
}
@凌驾
公共字符序列getPageTitle(int位置){
返回MFFragmentTitleList.get(位置);
}
}
}
我有displayView()
,它应该显示NavigationDrawer
中的正确视图,但我还有表格布局。什么时候
public class MainActivity extends AppCompatActivity implements FragmentDrawer.FragmentDrawerListener {
private Toolbar mToolbar;
private FragmentDrawer drawerFragment;
private TabLayout tabLayout;
private ViewPager viewPager;
private int[] tabIcons = {
R.drawable.ic_favorite_white_24dp,
R.drawable.ic_lightbulb_outline_white_24dp,
R.drawable.ic_face_white_24dp
};
private FirebaseAuth mAuth;
private FirebaseAuth.AuthStateListener mAuthListener;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mAuth = FirebaseAuth.getInstance();
mToolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(mToolbar);
Log.i("USER ", mAuth.getCurrentUser().getEmail().toString());
ActionBar actionBar = getSupportActionBar();
if (actionBar != null) {
Log.d("ACTION BAR?", actionBar.toString());
actionBar.setDisplayShowHomeEnabled(true);
}
drawerFragment = (FragmentDrawer)
getSupportFragmentManager().findFragmentById(R.id.fragment_navigation_drawer);
drawerFragment.setUp(R.id.fragment_navigation_drawer, (DrawerLayout) findViewById(R.id.drawer_layout), mToolbar);
drawerFragment.setDrawerListener(this);
// display the first navigation drawer view on app launch
displayView(0);
viewPager = (ViewPager) findViewById(R.id.viewpager);
setupViewPager(viewPager);
tabLayout = (TabLayout) findViewById(R.id.tabs);
tabLayout.setupWithViewPager(viewPager);
setupTabIcons();
mAuthListener = new FirebaseAuth.AuthStateListener() {
@Override
public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
FirebaseUser user = firebaseAuth.getCurrentUser();
if (user != null) {
// User is signed in
Log.d("TAG", "onAuthStateChanged:signed_in:" + user.getUid());
} else {
// User is signed out
Log.d("TAG", "onAuthStateChanged:signed_out");
}
// ...
}
};
// ...
}
private void setupTabIcons() {
tabLayout.getTabAt(0).setIcon(tabIcons[0]);
tabLayout.getTabAt(1).setIcon(tabIcons[1]);
tabLayout.getTabAt(2).setIcon(tabIcons[2]);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
public void onDrawerItemSelected(View view, int position) {
displayView(position);
}
private void displayView(int position) {
Fragment fragment = null;
String title = getString(R.string.app_name);
switch (position) {
case 0:
fragment = new HomeFragment();
title = getString(R.string.title_home);
Log.i("DISPLAY VIEW", "HOME FRAGMENT DISPLAYED");
break;
case 1:
fragment = new FriendsFragment();
title = getString(R.string.title_friends);
Log.i("DISPLAY VIEW", "FRIENDS FRAGMENT DISPLAYED");
break;
case 2:
fragment = new MessagesFragment();
title = getString(R.string.title_messages);
Log.i("DISPLAY VIEW", "MSG FRAGMENT DISPLAYED");
break;
default:
break;
}
if (fragment != null) {
FragmentManager fragmentManager = getSupportFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.replace(R.id.container_body, fragment);
fragmentTransaction.commit();
// set the toolbar title
getSupportActionBar().setTitle(title);
}
}
private void setupViewPager(ViewPager viewPager) {
ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager());
adapter.addFragment(new OneFragment(), "ONE");
adapter.addFragment(new TwoFragment(), "TWO");
adapter.addFragment(new ThreeFragment(), "THREE");
viewPager.setAdapter(adapter);
}
class ViewPagerAdapter extends FragmentPagerAdapter {
private final List<Fragment> mFragmentList = new ArrayList<>();
private final List<String> mFragmentTitleList = new ArrayList<>();
public ViewPagerAdapter(FragmentManager manager) {
super(manager);
}
@Override
public Fragment getItem(int position) {
return mFragmentList.get(position);
}
@Override
public int getCount() {
return mFragmentList.size();
}
public void addFragment(Fragment fragment, String title) {
mFragmentList.add(fragment);
mFragmentTitleList.add(title);
}
@Override
public CharSequence getPageTitle(int position) {
return mFragmentTitleList.get(position);
}
}
}