[移动开发]作业一：APP门户界面设计

门户界面大致样式

编写思路

1. 将页面分为两个部分，下边栏（bottom）、上边栏（top）
2. 分别创建两个activity进行设计
3. 将两个activity一起include至mian_activity（你的主页面）
4. 在主界面的Java文件中为下边栏添加监听事件
5. 使用FrameLayout用于显示切换后的页面

具体编写代码

上边栏main_top

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/main_top_L1"
    android:layout_width="match_parent"
    android:layout_height="80dp"
    android:background="#4CAF50"
    android:orientation="vertical">

    <TextView
        android:id="@+id/textView"
        android:layout_width="match_parent"
        android:layout_height="80dp"
        android:gravity="center"
        android:text="@string/main_top_L1"
        android:textSize="30sp" />
</LinearLayout>

下边栏main_buttom

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/mainButtonL1"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="#4CAF50"
    android:orientation="vertical">

    <LinearLayout
        android:id="@+id/LinearLayout0"
        android:layout_width="match_parent"
        android:layout_height="80dp"
        android:orientation="horizontal">

        <LinearLayout
            android:id="@+id/LinearLayout1"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:orientation="vertical">

            <ImageView
                android:id="@+id/findP"
                android:layout_width="match_parent"
                android:layout_height="50dp"
                app:srcCompat="@drawable/browse" />

            <TextView
                android:id="@+id/findT"
                android:layout_width="match_parent"
                android:layout_height="30dp"
                android:gravity="center"
                android:text="@string/main_button1"
                android:textSize="20sp" />
        </LinearLayout>

        <LinearLayout
            android:id="@+id/LinearLayout2"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:orientation="vertical">

            <ImageView
                android:id="@+id/cartP"
                android:layout_width="match_parent"
                android:layout_height="50dp"
                app:srcCompat="@drawable/all" />

            <TextView
                android:id="@+id/cartT"
                android:layout_width="match_parent"
                android:layout_height="30dp"
                android:gravity="center"
                android:text="@string/main_button2"
                android:textSize="20sp"/>
        </LinearLayout>

        <LinearLayout
            android:id="@+id/LinearLayout3"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:orientation="vertical">

            <ImageView
                android:id="@+id/interP"
                android:layout_width="match_parent"
                android:layout_height="50dp"
                app:srcCompat="@drawable/integral" />

            <TextView
                android:id="@+id/interT"
                android:layout_width="match_parent"
                android:layout_height="30dp"
                android:gravity="center"
                android:text="@string/main_button3"
                android:textSize="20sp"/>
        </LinearLayout>

        <LinearLayout
            android:id="@+id/LinearLayout4"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:orientation="vertical">

            <ImageView
                android:id="@+id/setP"
                android:layout_width="match_parent"
                android:layout_height="50dp"
                app:srcCompat="@drawable/set" />

            <TextView
                android:id="@+id/setT"
                android:layout_width="match_parent"
                android:layout_height="30dp"
                android:gravity="center"
                android:text="@string/main_button4"
                android:textSize="20sp"/>
        </LinearLayout>
    </LinearLayout>
</LinearLayout>

主页面main_activity

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/mainButtonL1"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="#4CAF50"
    android:orientation="vertical">

    <LinearLayout
        android:id="@+id/LinearLayout0"
        android:layout_width="match_parent"
        android:layout_height="80dp"
        android:orientation="horizontal">

        <LinearLayout
            android:id="@+id/LinearLayout1"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:orientation="vertical">

            <ImageView
                android:id="@+id/findP"
                android:layout_width="match_parent"
                android:layout_height="50dp"
                app:srcCompat="@drawable/browse" />

            <TextView
                android:id="@+id/findT"
                android:layout_width="match_parent"
                android:layout_height="30dp"
                android:gravity="center"
                android:text="@string/main_button1"
                android:textSize="20sp" />
        </LinearLayout>

        <LinearLayout
            android:id="@+id/LinearLayout2"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:orientation="vertical">

            <ImageView
                android:id="@+id/cartP"
                android:layout_width="match_parent"
                android:layout_height="50dp"
                app:srcCompat="@drawable/all" />

            <TextView
                android:id="@+id/cartT"
                android:layout_width="match_parent"
                android:layout_height="30dp"
                android:gravity="center"
                android:text="@string/main_button2"
                android:textSize="20sp"/>
        </LinearLayout>

        <LinearLayout
            android:id="@+id/LinearLayout3"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:orientation="vertical">

            <ImageView
                android:id="@+id/interP"
                android:layout_width="match_parent"
                android:layout_height="50dp"
                app:srcCompat="@drawable/integral" />

            <TextView
                android:id="@+id/interT"
                android:layout_width="match_parent"
                android:layout_height="30dp"
                android:gravity="center"
                android:text="@string/main_button3"
                android:textSize="20sp"/>
        </LinearLayout>

        <LinearLayout
            android:id="@+id/LinearLayout4"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:orientation="vertical">

            <ImageView
                android:id="@+id/setP"
                android:layout_width="match_parent"
                android:layout_height="50dp"
                app:srcCompat="@drawable/set" />

            <TextView
                android:id="@+id/setT"
                android:layout_width="match_parent"
                android:layout_height="30dp"
                android:gravity="center"
                android:text="@string/main_button4"
                android:textSize="20sp"/>
        </LinearLayout>
    </LinearLayout>
</LinearLayout>

建立Fragment

在下面填写Fragment的名字以及Layout的名字

Fragment的内容

如下展示其中一个的Java文件及Layout文件

BottomFind.java

package com.lltl.demo01;

import android.os.Bundle;

import androidx.fragment.app.Fragment;

import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

public class BottonFind extends Fragment {

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        return inflater.inflate(R.layout.fragment_botton_find, container, false);
    }
}a

fragment_botton_find.xml

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".BottonFind"

    >

    <TextView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:text="@string/main_button1"
        android:gravity="center"
        android:textSize="40sp"/>
</FrameLayout>

主界面Java文件代码

package com.lltl.demo01;

import androidx.appcompat.app.AppCompatActivity;
import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentManager;
import androidx.fragment.app.FragmentTransaction;


import android.annotation.SuppressLint;
import android.graphics.Color;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.FrameLayout;
import android.widget.LinearLayout;
import android.widget.ListView;

import java.util.ArrayList;

public class MainActivity extends AppCompatActivity {

    public Fragment findF = new BottonFind();
    public Fragment cartF = new BottonCart();
    public Fragment interF = new BottonInter();
    public Fragment setF = new BottonSet();
    public ArrayList<Fragment> fragmentArray = new ArrayList<Fragment>();
    private final FragmentManager fragmentManager = getSupportFragmentManager();

//    private ListView listView = findViewById(R.id.findList);


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        //TODO
//        //List测试
//        String[] array = {"皇后", "好好玩"};
//        ArrayAdapter adapter=new ArrayAdapter();
//        listView.setAdapter(adapter);


        //将fragment列表放入Array，方便操作
        fragmentArray.add(findF);
        fragmentArray.add(cartF);
        fragmentArray.add(interF);
        fragmentArray.add(setF);
        //初始主界面
        FragmentTransaction fT = fragmentManager.beginTransaction();
        fragmentAdd(fT, R.id.mainCenter, fragmentArray);
        fragmentHide(fT, fragmentArray);
        fT.show(findF);
        changeLinerBackColor(R.id.LinearLayout1);
        fT.commit();
        //添加bottom-LinerLayout事件
        setLinerLayoutOnClickListener((LinearLayout) findViewById(R.id.LinearLayout1));
        setLinerLayoutOnClickListener((LinearLayout) findViewById(R.id.LinearLayout2));
        setLinerLayoutOnClickListener((LinearLayout) findViewById(R.id.LinearLayout3));
        setLinerLayoutOnClickListener((LinearLayout) findViewById(R.id.LinearLayout4));
    }

    //通过fragmentArray移除
    private void fragmentRemove(FragmentTransaction transaction, ArrayList<Fragment> fragmentArray) {
        for (Fragment f : fragmentArray) {
            transaction.remove(f);
        }
    }

    //通过fragmentArray增加
    private void fragmentAdd(FragmentTransaction transaction, int containerViewId, ArrayList<Fragment> fragmentArray) {
        for (Fragment f : fragmentArray) {
            //判断这个fragment是否已经添加
            if (f.isAdded()) {
                continue;
            }
            transaction.add(containerViewId, f);
        }
    }

    //通过fragmentArray隐藏
    private void fragmentHide(FragmentTransaction transaction, ArrayList<Fragment> fragmentArray) {
        for (Fragment f : fragmentArray) {
            //判断fragment是否hide
            if (f.isHidden()) {
                continue;
            }
            transaction.hide(f);
        }
    }

    //为下边栏添加点击事件
    private void setLinerLayoutOnClickListener(LinearLayout lL) {
        lL.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                //必须在这个地方初始化FragmentTransaction，这样子就可以重复使用commit()
                FragmentTransaction fT = fragmentManager.beginTransaction();
                //添加
                fragmentAdd(fT, R.id.mainCenter, fragmentArray);
                //隐藏
                fragmentHide(fT, fragmentArray);
                //点击判断show
                linearLayoutOnClickAboutFragment(view, fT);
                //提交刷新后的fragment
                fT.commit();
            }
        });
    }


    @SuppressLint("NonConstantResourceId")
    private void linearLayoutOnClickAboutFragment(View view, FragmentTransaction fT) {
        int viewId = view.getId();
        //分支判断
        switch (viewId) {
            case R.id.LinearLayout1:
                fT.show(findF);
                changeLinerBackColor(viewId);
                break;
            case R.id.LinearLayout2:
                changeLinerBackColor(viewId);
                fT.show(cartF);
                break;
            case R.id.LinearLayout3:
                changeLinerBackColor(viewId);
                fT.show(interF);
                break;
            case R.id.LinearLayout4:
                changeLinerBackColor(viewId);
                fT.show(setF);
                break;
            default:
                break;
        }
    }


    //修改LinerLayout的背景颜色，表示点击的状态
    private void changeLinerBackColor(int linerLayoutID) {
        //TODO 修改
        findViewById(R.id.LinearLayout1).setBackgroundColor(Color.parseColor("#4CAF50"));
        findViewById(R.id.LinearLayout2).setBackgroundColor(Color.parseColor("#4CAF50"));
        findViewById(R.id.LinearLayout3).setBackgroundColor(Color.parseColor("#4CAF50"));
        findViewById(R.id.LinearLayout4).setBackgroundColor(Color.parseColor("#4CAF50"));
        View lL1 = findViewById(linerLayoutID);
        lL1.setBackgroundColor(Color.parseColor("#FF2E7D32"));
    }
}

测试结果

在这里插入图片描述

项目仓库地址

https://gitee.com/lazy_lazy_tang_lan/as-coding-studying