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 fragments = new ArrayList();

	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);

		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();

	}


	/**

	 * 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 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 ajaxCallBack = new AjaxCallBack() {

		@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());

			}

		};


	};


}

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