5.24

今天主要是写代码，申请了腾讯云服务器，现在将写的安卓代码放在下面，主要是完成相机调用等

package com.example.team

import android.annotation.SuppressLint
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import androidx.fragment.app.Fragment
import com.google.android.material.bottomnavigation.BottomNavigationView

class MainActivity : AppCompatActivity() {
    private lateinit var bottomNavigationView: BottomNavigationView

    private val navListener = BottomNavigationView.OnNavigationItemSelectedListener { item ->
        var selectedFragment: Fragment? = null
        when (item.itemId) {
            R.id.animal -> selectedFragment = AnimalFragment()
            R.id.plant -> selectedFragment = PlantFragment()

        }
        supportFragmentManager.beginTransaction().replace(
            R.id.fragment_container,
            selectedFragment!!).commit()
        true
    }

    @SuppressLint("MissingInflatedId")
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        bottomNavigationView = findViewById(R.id.bottom_navigation)
        bottomNavigationView.setOnNavigationItemSelectedListener(navListener)

        // 默认显示 HomeFragment
        supportFragmentManager.beginTransaction().replace(R.id.fragment_container,
            AnimalFragment()
        ).commit()
    }
}

<?xml version="1.0" encoding="utf-8"?>
<!-- activity_main.xml -->
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <!-- Fragment Container -->
    <FrameLayout
        android:id="@+id/fragment_container"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_above="@id/bottom_navigation"/>
    <!-- Bottom Navigation View -->
    <com.google.android.material.bottomnavigation.BottomNavigationView
        android:id="@+id/bottom_navigation"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        app:menu="@menu/bottom_navigation_menu"/>

</RelativeLayout>