import android.app.Activity; import android.app.FragmentManager; import android.app.FragmentManager.OnBackStackChangedListener; import android.app.FragmentTransaction; import android.os.Bundle; import android.view.View; public class FragmentNavigationActivity extends Activity implements OnBackStackChangedListener { private void nextFragment(boolean backStackFlag) { try { FragmentManager fragmentManager = getFragmentManager(); FragmentTransaction fragmentTransaction = fragmentManager .beginTransaction(); FragmentPage fragment = new FragmentPage(); fragmentTransaction.add(R.id.fragment_container, fragment); if (backStackFlag) fragmentTransaction .addToBackStack(String.valueOf(getFragmentManager() .getBackStackEntryCount() + 1)); fragmentTransaction.commit(); fragmentManager.addOnBackStackChangedListener(this); } catch (Exception e) { } } @Override public void onBackStackChanged() { setTitle("当前第" + (getFragmentManager().getBackStackEntryCount() + 1) + "页"); } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_fragment_navigation); nextFragment(false); onBackStackChanged(); } public void onClick_NextPage(View view) { nextFragment(true); } public void onClick_PrevPage(View view) { FragmentManager fragmentManager = getFragmentManager(); fragmentManager.popBackStack(); // 将回退栈在Fragment状态全部出栈,恢复到第1页 //fragmentManager.popBackStackImmediate("1",FragmentManager.POP_BACK_STACK_INCLUSIVE); } }
Argument:
Fragment fragment = new DummySectionFragment(); Bundle args = new Bundle(); args.putInt(DummySectionFragment.ARG_SECTION_NUMBER, position + 1); fragment.setArguments(args);
getArguments().getInt( ARG_SECTION_NUMBER))