我正在尝试在我的应用程序中创建 navigation drawer
。在我的一个 navigation drawer item
View
中,我希望它有 2 个 tabs
和 swipe view
功能。我得到错误 Viewview is not abstract and does not override abstract method onTabReselected
。
MainActivity//用于抽屉导航项目
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
private void selectItem(int position) {
Fragment fragment = null;
switch (position) {
case 0:
fragment=new Information();
break;
case 1:
fragment=new Claims1();
Bundle bundle=new Bundle();
bundle.putLong("ab",WorkDetailsTable.ab);
fragment.setArguments(bundle);
break;
case 2:
fragment=new ViewView();
break;
default:
break;
}
if (fragment != null) {
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction().replace(R.id.content_frame, fragment).commit();
mDrawerList.setItemChecked(position, true);
mDrawerList.setSelection(position);
setTitle(mNavigationDrawerItemTitles[position]);
mDrawerLayout.closeDrawer(mDrawerList);
} else {
Log.e("MainActivity", "Error in creating fragment");
}
}
}
View View
import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.view.ViewPager;
import android.support.v7.app.ActionBar;
import android.view.LayoutInflater;
import android.view.ViewGroup;
import android.widget.AdapterView;
public class ViewView extends Fragment implements ActionBar.TabListener {
private ViewPager viewPager;
private TabsFragmentPagerAdapter mAdapter;
private ActionBar actionBar;
private String[] tabs = {"Information", "receipt"};
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
View View1 = inflater.inflate(R.layout.viewview1, container, false);
viewPager = (ViewPager) View1.findViewById(R.id.pager);
mAdapter = new TabsFragmentPagerAdapter(getActivity().getSupportFragmentManager());
viewPager.setAdapter(mAdapter);
actionBar = getActivity().getActionBar();
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
for (int i = 0; i < 2; i++) {
actionBar.addTab(actionBar.newTab().setText(tabs[i]).setTabListener(this));
}
viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
@Override
public void onPageSelected(int arg) {
// TODO Auto-generated method stub
actionBar.setSelectedNavigationItem(arg);
}
@Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
// TODO Auto-generated method stub
}
@Override
public void onPageScrollStateChanged(int arg0) {
// TODO Auto-generated method stub
}
});
BuildList();
return View1;
}
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getActivity().getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
public void onTabReselected(ActionBar.Tab arg0, FragmentTransaction arg1) {
// TODO Auto-generated method stub
}
public void onTabSelected(ActionBar.Tab tab, FragmentTransaction arg1) {
// TODO Auto-generated method stub
viewPager.setCurrentItem(tab.getPosition());
}
public void onTabUnselected(ActionBar.Tab arg0, FragmentTransaction arg1) {
// TODO Auto-generated method stub
}
}
TabsFragmentPagerAdapter
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
public class TabsFragmentPagerAdapter extends FragmentPagerAdapter {
public TabsFragmentPagerAdapter(FragmentManager fm) {
super(fm);
// TODO Auto-generated constructor stub
}
@Override
public Fragment getItem(int index) {
// TODO Auto-generated method stub
switch(index) {
case 0:
return new UpdatePage2();
case 1:
return new Receipt();
}
return null;
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return 2;
}
}
错误
Error:(50, 47) error: incompatible types: android.app.ActionBar cannot be converted to android.support.v7.app.ActionBar
最佳答案
嗯,错误信息很清楚。您的 ViewView
类实现了 TabListener
但不包含 onTabReselected
的实现。您在实现 ViewPager.OnPageChangeListener()
的匿名类实例中实现了 onTabReselected
,这是您在 onCreateView
方法中定义的。
问题是您是否需要ViewView
来实现TabListener
。如果这样做,请将 TabListener
所需的方法直接添加到 ViewView
。如果不是,请删除 implements ActionBar.TabListener
子句。
关于java - 如何解决不抽象和不重写抽象方法onTabReselected,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/33843466/