activity使用fragment transaction.commit()进行fragment切换，activity被系统回收后再点应用就无法切换

/**

 * 

 */

package com.cn.xm.yunluhealth.ui.set;

import java.util.ArrayList;

import java.util.List;

import net.tsz.afinal.http.AjaxCallBack;

import android.app.Dialog;

import android.os.Bundle;

import android.support.v4.app.Fragment;

import android.support.v4.app.FragmentManager;

import android.support.v4.app.FragmentTransaction;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.ImageView;

import android.widget.LinearLayout;

import android.widget.TextView;

import com.cn.xm.yunluhealth.BaseActivity;

import com.cn.xm.yunluhealth.callback.TokenCallback;

import com.cn.xm.yunluhealth.entity.DTime;

import com.cn.xm.yunluhealth.entity.wrapper.EntityWrapper;

import com.cn.xm.yunluhealth.ui.set.fragment.FridayFragment;

import com.cn.xm.yunluhealth.ui.set.fragment.MondayFragment;

import com.cn.xm.yunluhealth.ui.set.fragment.SaturdayFragment;

import com.cn.xm.yunluhealth.ui.set.fragment.SundayFragment;

import com.cn.xm.yunluhealth.ui.set.fragment.ThursdayFragment;

import com.cn.xm.yunluhealth.ui.set.fragment.TuesdayFragment;

import com.cn.xm.yunluhealth.ui.set.fragment.WednesdayFragment;

import com.cn.xm.yunluhealth.util.Apis;

import com.cn.xm.yunluhealth.util.Common;

import com.cn.xm.yunluhealth.util.NetUtil;

import com.cn.xm.yunluhealth.util.UIHelper;

import com.cn.xm.yunluhealth.util.UserUtils;

import com.cn.xm.yunluhealthd.R;

import com.google.gson.Gson;

/**

 * 设置接诊时间

 * 

 * @author dpy

 * 

 */

public class SetHelpTimeActivity extends BaseActivity implements

OnClickListener {

private LinearLayout llMonday;

private TextView tvMonday;

private ImageView ivMonday;

private LinearLayout llTuesday;

private TextView tvTuesday;

private ImageView ivTuesday;

private LinearLayout llWednesday;

private TextView tvWednesday;

private ImageView ivWednesday;

private LinearLayout llThursday;

private TextView tvThursday;

private ImageView ivThursday;

private LinearLayout llFriday;

private TextView tvFriday;

private ImageView ivFriday;

private LinearLayout llSaturday;

private TextView tvSaturday;

private ImageView ivSaturday;

private LinearLayout llSunday;

private TextView tvSunday;

private ImageView ivSunday;

private MondayFragment mondayFragment;

private TuesdayFragment tuesdayFragment;

private WednesdayFragment wednesdayFragment;

private List<Fragment> fragments = new ArrayList<Fragment>();

private FragmentManager fragmentManager;

private FragmentTransaction transaction;

private ThursdayFragment thursdayFragment;

private FridayFragment fridayFragment;

private SaturdayFragment saturdayFragment;

private SundayFragment sundayFragment;

@Override

protected void onCreate(Bundle savedInstanceState) {

// TODO Auto-generated method stub

super.onCreate(savedInstanceState);

setCenterTitle("设置与帮助");

enableBackButton(R.drawable.regist_back);

setContentView(R.layout.set_help_time);

mBtnTitleRight.setVisibility(View.VISIBLE);

mBtnTitleRight.setText(" 提交 ");

mBtnTitleRight.setBackgroundResource(R.drawable.btn_commit);

mBtnTitleRight.setOnClickListener(this);// 未实现

initViews();

}

private void initViews() {

// TODO Auto-generated method stub

llMonday = (LinearLayout) findViewById(R.id.llMonday);

tvMonday = (TextView) findViewById(R.id.tvMonday);

llMonday.setSelected(true);

ivMonday = (ImageView) findViewById(R.id.ivMonday);

ivMonday.setVisibility(View.VISIBLE);

llTuesday = (LinearLayout) findViewById(R.id.llTuesday);

tvTuesday = (TextView) findViewById(R.id.tvTuesday);
4000

ivTuesday = (ImageView) findViewById(R.id.ivTuesday);

llWednesday = (LinearLayout) findViewById(R.id.llWednesday);

tvWednesday = (TextView) findViewById(R.id.tvWednesday);

ivWednesday = (ImageView) findViewById(R.id.ivWednesday);

llThursday = (LinearLayout) findViewById(R.id.llThursday);

tvThursday = (TextView) findViewById(R.id.tvThursday);

ivThursday = (ImageView) findViewById(R.id.ivThursday);

llFriday = (LinearLayout) findViewById(R.id.llFriday);

tvFriday = (TextView) findViewById(R.id.tvFriday);

ivFriday = (ImageView) findViewById(R.id.ivFriday);

llSaturday = (LinearLayout) findViewById(R.id.llSaturday);

tvSaturday = (TextView) findViewById(R.id.tvSaturday);

ivSaturday = (ImageView) findViewById(R.id.ivSaturday);

llSunday = (LinearLayout) findViewById(R.id.llSunday);

tvSunday = (TextView) findViewById(R.id.tvSunday);

ivSunday = (ImageView) findViewById(R.id.ivSunday);

llMonday.setOnClickListener(this);

llTuesday.setOnClickListener(this);

llWednesday.setOnClickListener(this);

llThursday.setOnClickListener(this);

llFriday.setOnClickListener(this);

llSaturday.setOnClickListener(this);

llSunday.setOnClickListener(this);

// 添加fragment

mondayFragment = new MondayFragment();

tuesdayFragment = new TuesdayFragment();

wednesdayFragment = new WednesdayFragment();

thursdayFragment = new ThursdayFragment();

fridayFragment = new FridayFragment();

saturdayFragment = new SaturdayFragment();

sundayFragment = new SundayFragment();

fragments.add(mondayFragment);

fragments.add(tuesdayFragment);

fragments.add(wednesdayFragment);

fragments.add(thursdayFragment);

fragments.add(fridayFragment);

fragments.add(saturdayFragment);

fragments.add(sundayFragment);

fragmentManager = this.getSupportFragmentManager();

transaction = fragmentManager.beginTransaction();

transaction.add(R.id.container, mondayFragment);

transaction.add(R.id.container, tuesdayFragment);

transaction.add(R.id.container, wednesdayFragment);

transaction.add(R.id.container, thursdayFragment);

transaction.add(R.id.container, fridayFragment);

transaction.add(R.id.container, saturdayFragment);

transaction.add(R.id.container, sundayFragment);

transaction.commit();

selectOrderTime = new ArrayList<DTime>();

}

/**

 * 更改Fragment对象

 * 

 * 

 * 

 * 

 * @param index

 */

private void switchFragment(int index) {

transaction = fragmentManager.beginTransaction();

transaction.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE);

for (int i = 0; i < fragments.size(); i++) {

if (index == i) {

transaction.show(fragments.get(index));

} else {

transaction.hide(fragments.get(i));

}

}

transaction.commit();

}

private ArrayList<DTime> selectOrderTime;

private Dialog waitingDialog;

@Override

public void onClick(View v) {

// TODO Auto-generated method stub

switch (v.getId()) {

case R.id.llMonday:

switchFragment(0);

tvMonday.setSelected(true);

ivMonday.setVisibility(View.VISIBLE);

tvTuesday.setSelected(false);

ivTuesday.setVisibility(View.INVISIBLE);

tvWednesday.setSelected(false);

ivWednesday.setVisibility(View.INVISIBLE);

tvThursday.setSelected(false);

ivThursday.setVisibility(View.INVISIBLE);

tvFriday.setSelected(false);

ivFriday.setVisibility(View.INVISIBLE);

tvSaturday.setSelected(false);

ivSaturday.setVisibility(View.INVISIBLE);

tvSunday.setSelected(false);

ivSunday.setVisibility(View.INVISIBLE);

break;

case R.id.btn_title_right:

commit();

break;

default:

break;

}

}

private void commit() {

if (!NetUtil.hasNetWrok(mContext)) {

// 保存数据到数据库。。。

return;

}

waitingDialog = UIHelper.getWaitingDialog(mContext, "正在修改...");

waitingDialog.show();

// 设置预约时间

selectOrderTime.addAll(mondayFragment.getSelectOrderTime());

selectOrderTime.addAll(tuesdayFragment.getSelectOrderTime());

selectOrderTime.addAll(wednesdayFragment.getSelectOrderTime());

selectOrderTime.addAll(thursdayFragment.getSelectOrderTime());

selectOrderTime.addAll(fridayFragment.getSelectOrderTime());

selectOrderTime.addAll(saturdayFragment.getSelectOrderTime());

selectOrderTime.addAll(sundayFragment.getSelectOrderTime());

UserUtils.getToken(mContext, new TokenCallback() {

@Override

public void getToken(String token, String doctorid) {

if (!token.equals("false")) {

Apis.reservationTime(ajaxCallBack, token, doctorid,

new Gson().toJson(selectOrderTime));

} else {

waitingDialog.dismiss();

}

}

});

}

AjaxCallBack<String> ajaxCallBack = new AjaxCallBack<String>() {

@Override

public void onFailure(Throwable t, int errorNo, String strMsg) {

// TODO Auto-generated method stub

super.onFailure(t, errorNo, strMsg);

Common.print(strMsg);

waitingDialog.dismiss();

}

@Override

public void onSuccess(String t) {

// TODO Auto-generated method stub

super.onSuccess(t);

Common.print(t);

waitingDialog.dismiss();

EntityWrapper wrapper = new Gson().fromJson(t, EntityWrapper.class);

if (wrapper.getStatus().equals("1")) {

UIHelper.showToast(mActivity, "设置成功");

mActivity.finish();

} else {

UIHelper.showToast(mActivity, wrapper.getMsg());

}

};

};

}