android材质设计选项卡碎片未显示
我已经遵循了Android codelabs的材料设计示例,我无法让我的片段在每个布局中显示文本编辑,请帮助。这是我的MainActivity.java。任何帮助都将不胜感激,正如你可能知道的,我在这方面是新手android材质设计选项卡碎片未显示,android,android-fragments,material-design,android-tabs,Android,Android Fragments,Material Design,Android Tabs,我已经遵循了Android codelabs的材料设计示例,我无法让我的片段在每个布局中显示文本编辑,请帮助。这是我的MainActivity.java。任何帮助都将不胜感激,正如你可能知道的,我在这方面是新手 protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); To
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
ViewPager viewPager = (ViewPager) findViewById(R.id.viewpager);
setupViewPager(viewPager);
TabLayout tabs = (TabLayout) findViewById(R.id.tabs);
tabs.setupWithViewPager(viewPager);
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer);
ActionBar supportActionBar = getSupportActionBar();
if (supportActionBar != null) {
//supportActionBar.setHomeAsUpIndicator(R.drawable.ic_menu_white_24dp);
supportActionBar.setDisplayHomeAsUpEnabled(true);
}
// Set behavior of Navigation drawer
navigationView.setNavigationItemSelectedListener(
new NavigationView.OnNavigationItemSelectedListener() {
// This method will trigger on item Click of navigation menu
@Override
public boolean onNavigationItemSelected(MenuItem menuItem) {
// Set item in checked state
menuItem.setChecked(true);
// TODO: handle navigation
// Closing drawer on item click
mDrawerLayout.closeDrawers();
return true;
}
});
/*
tabs.addTab(tabs.newTab().setText("Dine In"));
tabs.addTab(tabs.newTab().setText("Carry Out"));
tabs.addTab(tabs.newTab().setText("Orders"));
*/
}
private void setupViewPager(ViewPager viewPager) {
Adapter adapter = new Adapter(getSupportFragmentManager());
adapter.addFragment(new DineInFragment(), "Dine In");
adapter.addFragment(new CarryOutFragment(), "Carry Out");
adapter.addFragment(new OrdersFragment(), "Orders");
viewPager.setAdapter(adapter);
}
static class Adapter extends FragmentPagerAdapter {
private final List<Fragment> mFragmentList = new ArrayList<>();
private final List<String> mFragmentTitleList = new ArrayList<>();
public Adapter(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 postion) {
return mFragmentTitleList.get(postion);
}
}
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar Toolbar=(Toolbar)findViewById(R.id.Toolbar);
设置支持操作栏(工具栏);
ViewPager ViewPager=(ViewPager)findViewById(R.id.ViewPager);
设置viewPager(viewPager);
TabLayout tabs=(TabLayout)findviewbyd(R.id.tabs);
选项卡。使用viewPager进行设置(viewPager);
NavigationView NavigationView=(NavigationView)findViewById(R.id.nav_视图);
mDrawerLayout=(抽屉布局)findViewById(R.id.drawer);
ActionBar supportActionBar=getSupportActionBar();
如果(supportActionBar!=null){
//supportActionBar.setHomeAsUpIndicator(R.drawable.ic\U菜单\U白色\U 24dp);
supportActionBar.setDisplayHomeAsUpEnabled(true);
}
//设置导航抽屉的行为
navigationView.setNavigationItemSelectedListener(
新建NavigationView.OnNavigationItemSelectedListener(){
//此方法将在单击导航菜单项时触发
@凌驾
公共布尔值onNavigationItemSelected(MenuItem MenuItem){
//将项目设置为选中状态
menuItem.setChecked(true);
//TODO:句柄导航
//按项目关闭抽屉
mDrawerLayout.closeDrawers();
返回true;
}
});
/*
tabs.addTab(tabs.newTab().setText(“进餐”);
tabs.addTab(tabs.newTab().setText(“执行”);
tabs.addTab(tabs.newTab().setText(“订单”);
*/
}
专用无效设置ViewPager(ViewPager ViewPager){
适配器适配器=新适配器(getSupportFragmentManager());
addFragment(new DineInFragment(),“Dine-In”);
addFragment(新的carryotFragment(),“执行”);
addFragment(newordersfragment(),“Orders”);
viewPager.setAdapter(适配器);
}
静态类适配器扩展FragmentPagerAdapter{
私有最终列表MFFragmentList=new ArrayList();
私有最终列表MFFragmentTitleList=new ArrayList();
公共适配器(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(内部位置){
返回MFFragmentTitleList.get(position);
}
}
我可以通过将其添加到片段recyclerView.setLayoutManager(新的LinearLayoutManager(getActivity())中来修复它;我可以通过将其添加到片段recyclerView.setLayoutManager(新的LinearLayoutManager(getActivity())中来修复它;