android - 当我点击常见问题或关于我们时，屏幕仍在设置片段上

问题描述

所以我正在尝试为一个大学项目制作一个应用程序，但我的代码中有些东西不能正常工作，所以我制作了一个菜单侧边栏，并带有一些分隔符，如个人资料、事件、关于我们、常见问题解答、设置、共享和登出

侧边栏

所以我创建了一些片段

碎片

但是现在当我单击关于我们或常见问题解答时，我对关于我们和常见问题解答的片段有问题，它转到设置片段，我不知道为什么？有人可以帮助我吗？

MainActivity.Java

package com.example.readytogo;


import androidx.annotation.NonNull;
import androidx.appcompat.app.ActionBarDrawerToggle;
import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.Toolbar;
import androidx.core.view.GravityCompat;
import androidx.drawerlayout.widget.DrawerLayout;


import android.os.Bundle;
import android.view.MenuItem;
import android.widget.Switch;
import android.widget.Toast;

import com.google.android.material.navigation.NavigationView;

public class MainActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener {
    private DrawerLayout drawer;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Toolbar toolbar = findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        drawer = findViewById(R.id.drawer_layout);
        NavigationView navigationView =findViewById(R.id.nav_view);
        navigationView.setNavigationItemSelectedListener(this);

        ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(this, drawer, toolbar,
                R.string.navigation_drawer_open, R.string.navigation_drawer_close);
        drawer.addDrawerListener(toggle);
        toggle.syncState();

        if(savedInstanceState == null){
        getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container,
                new ProfileFragment()).commit();
        navigationView.setCheckedItem(R.id.nav_profile);
        }
    }

    @Override
    public boolean onNavigationItemSelected(@NonNull MenuItem menuItem) {
        switch (menuItem.getItemId()){
            case R.id.nav_profile:
                getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container,
                        new ProfileFragment()).commit();
                break;
            case R.id.nav_events:
                getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container,
                        new EventsFragment()).commit();
            case R.id.nav_aboutus:
                getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container,
                        new AboutUsFragment()).commit();
                break;
            case R.id.nav_faq:
                getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container,
                        new FAQFragment()).commit();
                break;
            case R.id.nav_settings:
                getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container,
                        new SettingsFragment()).commit();
                break;
            case R.id.nav_share:
                Toast.makeText(this, "Share", Toast.LENGTH_SHORT).show();
                break;
            case R.id.nav_logout:
                Toast.makeText(this, "Logout", Toast.LENGTH_SHORT).show();
                break;
            }
            drawer.closeDrawer(GravityCompat.START);
        return true;
        }



    @Override
    public void onBackPressed(){
        if (drawer.isDrawerOpen(GravityCompat.START)){
            drawer.closeDrawer(GravityCompat.START);
        } else {
            super.onBackPressed();
        }
    }
}

抽屉菜单.xml

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    tools:showIn="Navigation_view">

    <group android:checkableBehavior="single">
        <item
            android:id="@+id/nav_profile"
            android:icon="@drawable/ic_person"
            android:title="Profile" />
        <item
            android:id="@+id/nav_events"
            android:icon="@drawable/ic_event"
            android:title="Events" />
        <item
            android:id="@+id/nav_aboutus"
            android:icon="@mipmap/aboutus"
            android:title="About us" />
        <item
            android:id="@+id/nav_faq"
            android:icon="@mipmap/faq"
            android:title="FAQ" />
        <item
            android:id="@+id/nav_settings"
            android:icon="@drawable/ic_settings"
            android:title="Settings" />
    </group>

    <item android:title="Communicate">
        <menu>
            <item
                android:id="@+id/nav_share"
                android:icon="@drawable/ic_share"
                android:title="Share" />
        </menu>
    </item>

    <item android:title="Sign in">
        <menu>
            <item
                android:id="@+id/nav_logout"
                android:icon="@mipmap/arrow"
                android:title="Log out" />
        </menu>
    </item>

</menu>

标签： androidandroid-fragments

android - 当我点击常见问题或关于我们时，屏幕仍在设置片段上

问题描述

解决方案

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