我有一个片段,它的布局有一个按钮,我添加了一个点击监听器,onclick执行它:
CFrag_FE_Datepicker dp = new CFrag_FE_Datepicker();
dp.show(getFragmentManager(), "dp");
CFrag_FE_Datepicker是一个对话框
然而,片段没有弹出。我在onclick proc中设置了一个断点,它按预期中断了,它很高兴地超过了dp.show(),但没有任何反应。
我将按钮移动到一个活动,但这次它没有问题。
为什么会这样?
这是片段的来源,对不起,如果这里有许多不相关的编码:
package com.Prime.no2_andr;
import java.util.Locale;
import android.os.Bundle;
import android.os.Handler;
import android.app.DialogFragment;
import android.app.Fragment;
import android.app.FragmentTransaction;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.TextView;
public class CFrag_FE_Datepicker extends DialogFragment implements OnClickListener{
ViewPager mViewPager;
boolean IsShowCal = true;
CFrag_dp fragDP = new CFrag_dp();
CFrag_cal fragCal = new CFrag_cal();
private final Handler handler = new Handler();
private Runnable runPager;
boolean IsLoaded = false;
@Override public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// sectPagerAdp = new SectionsPagerAdapter(getFragmentManager());
// mViewPager = (ViewPager) getView().findViewById(R.id.pager);
// mViewPager.setAdapter(sectPagerAdp);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View v = inflater.inflate(R.layout.frag_fe_datepicker, container, false);
v.findViewById(R.id.btn_More).setOnClickListener(this);
return v;
}
@Override
public void onActivityCreated(Bundle savedInstanceState)
{
super.onActivityCreated(savedInstanceState);
if (IsLoaded) return;
// IsLoaded = true;
// runPager = new Runnable() {
//
// @Override
// public void run()
//// {
// getFragmentManager().beginTransaction().add(R.id.rl_Cont, fragDP).commit();
// }
// };
// handler.post(runPager);
}
/**
* @see android.support.v4.app.Fragment#onPause()
*/
@Override
public void onPause()
{
super.onPause();
// handler.removeCallbacks(runPager);
}
public void onClickMore(View btn) {
}
public FragmentTransaction ExecAddFrag(FragmentTransaction ft){
ft.add(R.id.rl_Cont, //fragDP
fragCal
);
return ft;
}
public static class CFrag_dp extends CFrag_dp_cal {
public CFrag_dp() {
super(false);
}
}
public static class CFrag_cal extends CFrag_dp_cal {
public CFrag_cal() {
super(true);
}
}
public static abstract class CFrag_dp_cal extends Fragment {
boolean IsCal;
public CFrag_dp_cal(boolean in_IsCal) {
IsCal = in_IsCal;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(
IsCal? R.layout.frag_fe_datepicker_cal : R.layout.frag_fe_datepicker_dp,
container, false);
}
}
@Override
public void onClick(View v) {
IsShowCal = !IsShowCal;
/*
getFragmentManager().beginTransaction()
.replace(R.id.rl_Cont, IsShowCal? fragCal : fragDP)
.commitAllowingStateLoss();
*/
// ((TextView)getView().findViewById(R.id.textView1)).setText(IsShowCal? "T":"F");
}
}
答案 0 :(得分:2)
如果您正在使用嵌套片段并且在子片段上调用getFragmentManager(),则将返回的FragmentManager是父级的getChildFragmentManager()而不是宿主活动的FragmentManager。如果是这种情况,请尝试拨打getActivity().getFragmentManager()
。