Android fragment切换及传值基本用法

作者: ryanxun | 来源:发表于2019-06-13 10:56 被阅读0次

Android fragment切换及传值基本用法
Android-Fragment的基本用法
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2018-03-26 activity,fragment app
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【Android开发基础系列】Fragment专题
Android个人收藏
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VUE路由的使用

运用AndroidStudio来实现基本实现
首先这个需要在主界面创建控件Activity_main


<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/drawer_layout"
    android:background="#F2F6FC">

    <LinearLayout
        android:id="@+id/daohanglan"
        android:layout_alignParentBottom="true"
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <LinearLayout
            android:onClick="shouye"
            android:gravity="center"
            android:orientation="vertical"
            android:layout_weight="1"
            android:layout_width="0dp"
            android:layout_height="wrap_content">

            <ImageView
                android:src="@drawable/index"
                android:layout_width="25dp"
                android:layout_height="25dp" />

            <TextView
                android:text="首页"
                android:gravity="center"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content" />
        </LinearLayout>

    <LinearLayout
        android:gravity="center"
        android:orientation="vertical"
        android:layout_weight="1"
        android:layout_width="0dp"
        android:layout_height="wrap_content">
        <ImageView
        android:src="@drawable/gongsi"
        android:layout_width="25dp"
        android:layout_height="25dp" />
        <TextView
            android:text="公司"
            android:gravity="center"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />
    </LinearLayout>

        <LinearLayout
            android:gravity="center"
            android:orientation="vertical"
            android:layout_weight="1"
            android:layout_width="0dp"
            android:layout_height="wrap_content">
            <ImageView
            android:src="@drawable/xiaoxi"
            android:layout_width="25dp"
            android:layout_height="25dp" />
            <TextView
                android:text="消息"
                android:gravity="center"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content" />
        </LinearLayout>

        <LinearLayout
            android:gravity="center"
            android:orientation="vertical"
            android:layout_weight="1"
            android:layout_width="0dp"
            android:layout_height="wrap_content">
            <ImageView
            android:src="@drawable/shenghuoquan"
            android:layout_width="25dp"
            android:layout_height="25dp" />
            <TextView
                android:text="生活圈"
                android:gravity="center"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content" />
        </LinearLayout>


    </LinearLayout>
    
    <FrameLayout
        android:id="@+id/lunbo"
        android:layout_above="@+id/daohanglan"
        android:layout_width="match_parent"
        android:layout_height="match_parent">
        
        <fragment
            android:name="com.example.ryan.hatching.fragment.index"
            android:layout_width="match_parent"
            android:layout_height="match_parent"/>

    </FrameLayout>



</RelativeLayout>

然后在准备一个fragmentMain


package com.example.ryan.hatching.fragment;

import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v4.view.GravityCompat;
import android.support.v4.view.ViewPager;
import android.support.v4.widget.DrawerLayout;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.ListView;

import com.example.ryan.hatching.MainActivity;
import com.example.ryan.hatching.R;
import com.example.ryan.hatching.adapter.CompanyAdapter;
import com.example.ryan.hatching.adapter.MyPagerAdapter;
import com.example.ryan.hatching.pojo.Company;

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

public class index extends Fragment {
    private View view;
    private DrawerLayout drawerLayout;
    private ImageView userhead;
    private ViewPager view_pager;
    private ArrayList<View> aList;
    private MyPagerAdapter mAdapter;
    private ListView ComLv;
    private List<Company> companies;
    private CompanyAdapter companyAdapter;

    //虚拟数据
    private Integer id []={1,2,3,4};
    private Integer[] img = {R.drawable.logo,R.drawable.logo,R.drawable.logo,R.drawable.logo};
    private String Comname [] ={ "创孵","共享悦生活","酷狗","关乎"};
    private String[] sheng={"辽宁","北京","山东","成都"};
    private String[] shi={"鞍山","中山","廊坊","四川"};
    private String[] qu={"岫岩","关中","莲花","嘟嘟"};
    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        view=inflater.inflate(R.layout.fragment_index,container,false);

        init();
        onclick();
        Slideshow();
        Companyshow();

        final DrawerLayout drawerLayout=view.findViewById(R.id.drawer_layout);

        ImageView userhead=view.findViewById(R.id.userhead);
        userhead.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                drawerLayout.openDrawer(GravityCompat.START);
            }
        });
        return view;


}

    private void init() {
        userhead=view.findViewById(R.id.userhead);
        drawerLayout=view.findViewById(R.id.drawer_layout);
        view_pager=view.findViewById(R.id.view_pager);
        ComLv=view.findViewById(R.id.ComLv);
    }
    private void Companyshow() {
        companies=new ArrayList<>();
        companyAdapter=new CompanyAdapter(getActivity(),R.layout.company_adapter,companies,ComLv);
        for (int i=0; i<id.length;i++){
            Company c=new Company();
            c.setId(i);
            c.setImageid(img[i]);
            c.setCompanyname(Comname[i]);
            c.setSheng(sheng[i]);
            c.setShi(shi[i]);
            c.setQu(qu[i]);
            companies.add(c);
        }
        ComLv.setAdapter(companyAdapter);

    }



    private void onclick() {
        userhead.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                drawerLayout.openDrawer(GravityCompat.START);
            }
        });
    }

    private void Slideshow() {
        aList = new ArrayList<View>();
        LayoutInflater li = getLayoutInflater();
        aList.add(li.inflate(R.layout.slideshow_one,null,false));
        aList.add(li.inflate(R.layout.slideshow_two,null,false));
        aList.add(li.inflate(R.layout.slideshow_three,null,false));
        mAdapter=new MyPagerAdapter(aList);
        view_pager.setAdapter(mAdapter);
    }
}

需要一个fragment布局文件


<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/drawer_layout"
    android:background="#F2F6FC">
    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <RelativeLayout
            android:id="@+id/toolbar"
            android:layout_centerHorizontal="true"
            android:background="#00CCFF"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize">


            <de.hdodenhof.circleimageview.CircleImageView
                android:id="@+id/userhead"
                android:layout_marginLeft="12dp"
                android:layout_centerVertical="true"
                android:src="@drawable/logo"
                android:layout_width="40dp"
                android:layout_height="40dp" />
            <TextView
                android:layout_centerInParent="true"
                android:textSize="20dp"
                android:textColor="#ffffff"
                android:text="创孵"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content" />
            <ImageView
                android:layout_marginRight="12dp"
                android:layout_alignParentRight="true"
                android:layout_centerVertical="true"
                android:src="@drawable/serch"
                android:layout_width="30dp"
                android:layout_height="30dp" />
        </RelativeLayout>

        <RelativeLayout
            android:id="@+id/slideshow"
            android:layout_below="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="200dp">

            <android.support.v4.view.ViewPager
                android:id="@+id/view_pager"
                android:layout_centerInParent="true"
                android:layout_width="match_parent"
                android:layout_height="wrap_content">
            </android.support.v4.view.ViewPager>
        </RelativeLayout>

        <RelativeLayout
            android:id="@+id/findwork"
            android:layout_below="@+id/slideshow"
            android:layout_width="match_parent"
            android:layout_height="wrap_content">

            <TextView
                android:text="找工作"
                android:textSize="20dp"
                android:textColor="#000000"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content" />
        </RelativeLayout>
        <RelativeLayout
            android:id="@+id/findwork_icon"
            android:layout_below="@+id/findwork"
            android:layout_width="match_parent"
            android:layout_height="wrap_content">

            <LinearLayout
                android:layout_centerInParent="true"
                android:id="@+id/quanzhi"
                android:orientation="horizontal"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content">

                <LinearLayout
                    android:orientation="vertical"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content">

                    <ImageView
                        android:src="@drawable/quanzhi"
                        android:layout_width="30dp"
                        android:layout_height="30dp" />
                    <TextView
                        android:gravity="center"
                        android:textColor="#000000"
                        android:textSize="15dp"
                        android:text="全职"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content" />
                </LinearLayout>

                <LinearLayout
                    android:layout_marginLeft="150dp"
                    android:orientation="vertical"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content">

                    <ImageView
                        android:layout_width="30dp"
                        android:layout_height="30dp"
                        android:src="@drawable/jianzhi" />
                    <TextView
                        android:gravity="center"
                        android:textColor="#000000"
                        android:textSize="15dp"
                        android:text="兼职"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content" />
                </LinearLayout>
            </LinearLayout>
        </RelativeLayout>

        <RelativeLayout
            android:id="@+id/remen"
            android:layout_below="@+id/findwork_icon"
            android:layout_width="match_parent"
            android:layout_height="wrap_content">

            <TextView
                android:text="热门公司"
                android:textSize="20dp"
                android:textColor="#000000"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content" />
        </RelativeLayout>

        <RelativeLayout
            android:layout_below="@+id/remen"
            android:id="@+id/conpany"
            android:layout_width="match_parent"
            android:layout_height="wrap_content">

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="vertical">

                <ListView
                    android:id="@+id/ComLv"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"/>
            </LinearLayout>


        </RelativeLayout>



    </RelativeLayout>
    <!--侧滑栏-->
    <android.support.design.widget.NavigationView
        android:id="@+id/main_right_drawer_layout"
        android:layout_width="240dp"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        android:background="#F2F6FC"
        android:paddingTop="50dp"
        app:headerLayout="@layout/nav_header"
        app:menu="@menu/nav_menu">
        <RelativeLayout
            android:layout_margin="20dp"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content">
            <ImageView
                android:layout_alignParentBottom="true"
                android:layout_alignParentRight="true"
                android:src="@drawable/shezhi"
                android:layout_width="30dp"
                android:layout_height="30dp" />
        </RelativeLayout>
    </android.support.design.widget.NavigationView>

</android.support.v4.widget.DrawerLayout>

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