Fragment之间传值（第三周周考）

需要加网络权限

<uses-permission android:name="android.permission.INTERNET"></uses-permission>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"></uses-permission>

1：布局文件activity_main.xml

<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal">
<LinearLayout
android:orientation="horizontal"
android:layout_width="150dp"
android:layout_height="match_parent"
android:id="@+id/left"/>

<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/right"/>

</LinearLayout>

let.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<ListView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/lv_left"
></ListView>
</LinearLayout>
1909f

right.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ListView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/lv_right"
></ListView>
</LinearLayout>

left_item.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/left_text"
android:text="dwd"
/>
</LinearLayout>

right_item.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">

<LinearLayout
android:layout_margin="20dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
>
<LinearLayout
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:orientation="vertical"
>
<TextView
android:padding="10dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="fwfwf"
android:id="@+id/text1"
/>
<TextView
android:padding="10dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="fwfwf"
android:id="@+id/text22"
/>

</LinearLayout>
<ImageView
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:id="@+id/image22"
android:src="@mipmap/ic_launcher"
/>
</LinearLayout>
</LinearLayout>

2：代码

MainActivity

package com.example.demo_sanzhou20170422;

import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.Bundle;
import android.provider.Settings;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;

import fragment.Fragment_left;

public class MainActivity extends AppCompatActivity {
Fragment_left mFragment_left = new Fragment_left();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
getSupportFragmentManager().beginTransaction().replace(R.id.left,mFragment_left,null).commit();
NetWorkStatus();
}
public boolean isNetworkConnected(Context context) {
if (context != null) {
ConnectivityManager mConnectivityManager = (ConnectivityManager) context
.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo mNetworkInfo = mConnectivityManager.getActiveNetworkInfo();
if (mNetworkInfo != null) {
return mNetworkInfo.isAvailable();
}
}
return false;
}
private boolean NetWorkStatus() {
boolean netSataus = isNetworkConnected(this);
if (!netSataus) {
AlertDialog.Builder b = new AlertDialog.Builder(this).setTitle("没有可用的网络")
.setMessage("是否对网络进行设置？");

b.setPositiveButton("是", new DialogInterface.OnClickListener() {

private ProgressDialog mDialog;

public void onClick(DialogInterface dialog, int whichButton) {
if(android.os.Build.VERSION.SDK_INT > 10 ){
//3.0以上打开设置界面
startActivity(new Intent(Settings.ACTION_SETTINGS));
}else
{
startActivity(new Intent(android.provider.Settings.ACTION_WIRELESS_SETTINGS));
}

}
}).setNeutralButton("否", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
dialog.cancel();
}
}).show();
}

return netSataus;
}
}

3左右fragment

Fragment_left

package fragment;

import android.graphics.Color;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.ListView;
import android.widget.TextView;

import com.example.demo_sanzhou20170422.R;

import java.util.ArrayList;
import java.util.List;

import bean.ListBean;

/**
* Created by 1 on 2017/4/22.
*/

public class Fragment_left extends Fragment {
//定义左边fragment数据
private List<ListBean> mList = new ArrayList<ListBean>();
private View mV;
private ListView mMlv_left;
private int location=0;
@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}

@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
mV = inflater.inflate(R.layout.let, null);
//初始化控件
mMlv_left = (ListView) mV.findViewById(R.id.lv_left);
initData();//初始化数据
return mV;

}

private void initData() {
for(int x=0; x<10 ; x=x+2){
mList.add(new ListBean(x,x+1));
}
MyAdapter adapter = new MyAdapter();
mMlv_left.setAdapter(adapter);
mMlv_left.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
if(position!=location){
//Color.TRANSPARENT透明色
parent.getChildAt(location).setBackgroundColor(Color.TRANSPARENT);
}
//设置选中item的颜色
view.setBackgroundColor(Color.RED);
//把数据传给右边的Fragment
Fragment_Right rf =new Fragment_Right();
Bundle bundle = new Bundle();
bundle.putInt("num1",mList.get(position).getNum1());
bundle.putInt("num2",mList.get(position).getNum2());
rf.setArguments(bundle);
getActivity().getSupportFragmentManager().beginTransaction().replace(R.id.right,rf,null).commit();
//得到解析数据
rf.initData();
location=position;
}
});
}
class MyAdapter extends BaseAdapter {

@Override
public int getCount() {
return mList.size();
}

@Override
public Object getItem(int position) {
return null;
}

@Override
public long getItemId(int position) {
return 0;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {

if (convertView==null){
convertView=View.inflate(getActivity(),R.layout.left_item,null);
TextView text_left= (TextView) convertView.findViewById(R.id.left_text);
text_left.setText("条目"+mList.get(position).getNum1()+""+mList.get(position).getNum2());
}
return convertView;
}
}
}

Fragment_Right

package fragment;import android.os.Bundle;import android.support.annotation.Nullable;import android.support.v4.app.Fragment;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.ListView;import com.example.demo_sanzhou20170422.R;import com.google.gson.Gson;import org.xutils.common.Callback;import org.xutils.http.RequestParams;import org.xutils.x;import java.util.ArrayList;import java.util.List;import adapter.RightAdapter;import bean.GsonBean;/*** Created by 1 on 2017/4/22.*/public class Fragment_Right extends Fragment {List<GsonBean.DatalistBean> list = new ArrayList<>();private View mView_right;private ListView mLv;@Overridepublic void onCreate(@Nullable Bundle savedInstanceState) {super.onCreate(savedInstanceState);}@Nullable@Overridepublic View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {mView_right = inflater.inflate(R.layout.right, null);mLv = (ListView) mView_right.findViewById(R.id.lv_right);return mView_right;}public void initData(){RequestParams params = new RequestParams("http://www.meirixue.com/api.php?c=list&a=index");x.http().get(params, new Callback.CommonCallback<String>() {private RightAdapter mAdapter;@Overridepublic void onSuccess(String result) {Gson gson = new Gson();GsonBean bean = gson.fromJson(result, GsonBean.class);List<GsonBean.DatalistBean> datalist = bean.getDatalist();Bundle bundle = getArguments();int num1 = bundle.getInt("num1");int num2 = bundle.getInt("num2");for (int i = 0; i <datalist.size() ; i++) {if (num1 == i || num2 == i) {list.add(datalist.get(i));}}RightAdapter mAdapter = new RightAdapter(getActivity(), list);mLv.setAdapter(mAdapter);}@Overridepublic void onError(Throwable ex, boolean isOnCallback) {}@Overridepublic void onCancelled(CancelledException cex) {}@Overridepublic void onFinished() {}});}}

3:适配器

MyAdapter_left

package adapter;import android.content.Context;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;/*** Created by 1 on 2017/4/22.*/public class MyAdapter_left extends BaseAdapter {private Context context;@Overridepublic int getCount() {return 0;}@Overridepublic Object getItem(int position) {return null;}@Overridepublic long getItemId(int position) {return 0;}@Overridepublic View getView(int position, View convertView, ViewGroup parent) {return null;}}

RightAdapter

package adapter;import android.content.Context;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.ImageView;import android.widget.TextView;import com.example.demo_sanzhou20170422.R;import org.xutils.image.ImageOptions;import org.xutils.x;import java.util.List;import bean.GsonBean;public class RightAdapter extends BaseAdapter {private List<GsonBean.DatalistBean>list;private Context context;private ImageOptions options;public RightAdapter(Context context, List<GsonBean.DatalistBean> list) {this.context = context;this.list = list;options=new ImageOptions.Builder().setFadeIn(true).setLoadingDrawableId(R.mipmap.ic_launcher).setCrop(true).setSize(300,190).setUseMemCache(true).build();}@Overridepublic int getCount() {return list.size();}@Overridepublic Object getItem(int position) {return null;}@Overridepublic long getItemId(int position) {return 0;}@Overridepublic View getView(int position, View convertView, ViewGroup parent) {ViewHolder  holder;if (convertView==null){convertView=View.inflate(context,R.layout.right_item,null);holder=new ViewHolder();holder.t1= (TextView) convertView.findViewById(R.id.text1);holder.t2= (TextView) convertView.findViewById(R.id.text22);holder.image= (ImageView) convertView.findViewById(R.id.image22);convertView.setTag(holder);}else {holder= (ViewHolder) convertView.getTag();}holder.t1.setText(list.get(position).getCourse_name());holder.t2.setText(list.get(position).getCourse_price());x.image().bind(holder.image,list.get(position).getCourse_pic(),options);return convertView;}class  ViewHolder{TextView t1;TextView t2;ImageView image;}}

bean文件：

ListBean

package bean;public class ListBean {private  int num1;private  int num2;public ListBean(int num1, int num2) {this.num1 = num1;this.num2 = num2;}public ListBean() {}@Overridepublic String toString() {return "ListBean{" +"num1=" + num1 +", num2=" + num2 +'}';}public int getNum1() {return num1;}public void setNum1(int num1) {this.num1 = num1;}public int getNum2() {return num2;}public void setNum2(int num2) {this.num2 = num2;}}

GsonBean

package bean;import java.util.List;public class GsonBean  {/*** datalist : [{"cid":"5857","course_tname":"丁丁","course_name":"3DMAX效果图-实战篇（欧式二）","course_price":"20.00","course_pic":"http://img.dianfu.net/img/20170216/40799f98cfc235f2a2eb46837d5cff84.jpg","course_paycount":"0","school_name":"吉大教育"},{"cid":"1167","course_tname":"中公教育","course_name":"行测数量关系核心考点之行程问题1","course_price":"0.00","course_pic":"http://img.dianfu.net/img/20150914/1d132d22df1e8b5331ff960ff96f0158.jpg","course_paycount":"30","school_name":"中公教育"},{"cid":"1170","course_tname":"中公教育","course_name":"行测数量关系核心考点之行程问题2","course_price":"0.00","course_pic":"http://img.dianfu.net/img/20150914/92048cc02319aba296cdadf9140c6602.jpg","course_paycount":"41","school_name":"中公教育"},{"cid":"1173","course_tname":"中公教育","course_name":"行测数量关系核心考点之行程问题3","course_price":"0.00","course_pic":"http://img.dianfu.net/img/20150914/aaed07356bea4bc4e1a24b6164297f5d.jpg","course_paycount":"24","school_name":"中公教育"},{"cid":"1161","course_tname":"中公教育","course_name":"行测数量关系 核心考点之不定方程1","course_price":"0.00","course_pic":"http://img.dianfu.net/img/20150911/3e8af2128c1ead7f86e45797ae13f91a.jpg","course_paycount":"17","school_name":"中公教育"},{"cid":"1162","course_tname":"中公教育","course_name":"行测数量关系 核心考点之不定方程2","course_price":"0.00","course_pic":"http://img.dianfu.net/img/20150911/1623e1ea09471f3a7eef7c10d6fa6979.jpg","course_paycount":"33","school_name":"中公教育"},{"cid":"1163","course_tname":"中公教育","course_name":"行测数量关系 核心考点之不定方程3","course_price":"0.00","course_pic":"http://img.dianfu.net/img/20150911/7c86ea4816766dc04f491d5066a8a67c.jpg","course_paycount":"11","school_name":"中公教育"},{"cid":"1156","course_tname":"中公教育","course_name":"行测数量关系核心考点之数学运算必备知识1","course_price":"0.00","course_pic":"http://img.dianfu.net/img/20150911/7c3297250d255e59f781079b3e33db12.jpg","course_paycount":"21","school_name":"中公教育"},{"cid":"1146","course_tname":"中公教育","course_name":"行测数量关系核心考点之数学运算必备知识2","course_price":"0.00","course_pic":"http://img.dianfu.net/img/20150911/6f945dd193ef1ff8d2ae85b0ea7a725d.jpg","course_paycount":"32","school_name":"中公教育"},{"cid":"1149","course_tname":"中公教育","course_name":"行测数量关系核心考点之数学运算必备知识3","course_price":"0.00","course_pic":"http://img.dianfu.net/img/20150911/f5839810c1d9be265ccb8b29f11b206b.jpg","course_paycount":"34","school_name":"中公教育"}]* count : 3819* limit : 10* curpage : 1*/private int count;private int limit;private int curpage;private List<DatalistBean> datalist;public int getCount() {return count;}public void setCount(int count) {this.count = count;}public int getLimit() {return limit;}public void setLimit(int limit) {this.limit = limit;}public int getCurpage() {return curpage;}public void setCurpage(int curpage) {this.curpage = curpage;}public List<DatalistBean> getDatalist() {return datalist;}public void setDatalist(List<DatalistBean> datalist) {this.datalist = datalist;}public static class DatalistBean {/*** cid : 5857* course_tname : 丁丁* course_name : 3DMAX效果图-实战篇（欧式二）* course_price : 20.00* course_pic : http://img.dianfu.net/img/20170216/40799f98cfc235f2a2eb46837d5cff84.jpg * course_paycount : 0* school_name : 吉大教育*/private String cid;private String course_tname;private String course_name;private String course_price;private String course_pic;private String course_paycount;private String school_name;public String getCid() {return cid;}public void setCid(String cid) {this.cid = cid;}public String getCourse_tname() {return course_tname;}public void setCourse_tname(String course_tname) {this.course_tname = course_tname;}public String getCourse_name() {return course_name;}public void setCourse_name(String course_name) {this.course_name = course_name;}public String getCourse_price() {return course_price;}public void setCourse_price(String course_price) {this.course_price = course_price;}public String getCourse_pic() {return course_pic;}public void setCourse_pic(String course_pic) {this.course_pic = course_pic;}public String getCourse_paycount() {return course_paycount;}public void setCourse_paycount(String course_paycount) {this.course_paycount = course_paycount;}public String getSchool_name() {return school_name;}public void setSchool_name(String school_name) {this.school_name = school_name;}}}

//Myapp

package com.example.demo_sanzhou20170422;import android.app.Application;import org.xutils.x;/*** Created by 1 on 2017/4/23.*/public class MyApp extends Application {@Overridepublic void onCreate() {super.onCreate();x.Ext.init(this);x.Ext.setDebug(false);}}