Android 标题栏及导航栏设计与实现

整体演示

一、Toolbar实现顶部标题

1、案例演示

2、实现步骤

2.1、隐藏页面自带标题栏

ActionBar是Android 5.0以前的顶部标题栏，由于其不够灵活所有被ToolBar取代，所有我们要隐藏ActionBar

将主题应用设为Light.NoActionBar
1、全部页面都隐藏ActionBar
values/themes/

    <style name="Theme.MyApplication" parent="Theme.AppCompat.Light.NoActionBar">
    </style&gt;

2、单个页面隐藏ActionBar
AndroidManifest.xml

    <application
        android:theme="@style/Theme.AppCompat.Light.NoActionBar"&gt;
    </application&gt;

2.2、页面布局添加ToolBar

<LinearLayout 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:orientation="vertical"
    tools:context=".MainActivity"&gt;

    <androidx.appcompat.widget.Toolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"&gt;
    </androidx.appcompat.widget.Toolbar&gt;
    
</LinearLayout>

2.3、MainActivity.java（设置ToolBar属性）

设置了 setSupportActionBar() 后 ，toolBar的事件监听才有作用

public class MainActivity extends AppCompatActivity {

    private Toolbar toolbar;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        //初始化toolbar
        toolbar();
    }
    @SuppressLint("ResourceAsColor")
    public void toolbar(){
        toolbar=findViewById(R.id.toolbar);
        //标题
        toolbar.setTitle("LuFei");
        //子标题
        toolbar.setSubtitle("儿子");
        //logo
        toolbar.setLogo(R.drawable.lufei);
        //左侧图标
        toolbar.setNavigationIcon(R.drawable.left2);
        //标题颜色
        toolbar.setTitleTextColor(R.color.teal_200);
        //背景颜色
        toolbar.setBackgroundResource(R.color.white);
        //设置toolbar对象
        setSupportActionBar(toolbar);

        toolbar.setNavigationOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                finish();
            }
        });
        toolbar.setOnMenuItemClickListener(new Toolbar.OnMenuItemClickListener() {
            @Override
            public boolean onMenuItemClick(MenuItem item) {
                //拿到了item对象，我们有id
                switch (item.getItemId()){
                    case R.id.menu1:
                        Toast.makeText(MainActivity.this, "加入", Toast.LENGTH_SHORT).show();
                        break;
                    case R.id.menu2:
                        Toast.makeText(MainActivity.this, "提示", Toast.LENGTH_SHORT).show();
                        break;
                    case R.id.menu3:
                        Toast.makeText(MainActivity.this, "退出", Toast.LENGTH_SHORT).show();
                        break;
                }
                return false;
            }
        });
    }

}

二、ToolBar添加菜单和搜索框

1、案例演示

2.1、创建menu资源文件

2.2、menu_main.xml

• always：总是在标题栏上显示菜单图标
• ifRoom：如果右侧有空间，该项就显示在标题栏上
• never：从不在标题栏上直接显示，一直放在溢出的菜单列表中
• withText：如果能在标题栏上显示，除了显示图标，还要显示文字说明
• collapseActionView：操作视图折叠为一个按钮，点击该按钮在展开操作视图，主要用于设置SearchView

<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">
    <item android:id="@+id/menu1"
        android:icon="@mipmap/ic_launcher"
        app:showAsAction="always"
        android:title="加入" />
    <item android:id="@+id/menu2"
        android:icon="@mipmap/ic_launcher"
        app:showAsAction="ifRoom"
        android:title="提示" />
    <item android:id="@+id/menu3"
        android:icon="@mipmap/ic_launcher"
        app:showAsAction="never"
        android:title="退出" />

    <item android:id="@+id/search"
        android:icon="@mipmap/ic_launcher_round"
        app:showAsAction="always"
        app:actionViewClass="androidx.appcompat.widget.SearchView"
        android:title="搜索" />
</menu>

2.3、MainActivity.java(加载菜单和搜索栏)

public class MainActivity extends AppCompatActivity {

    private Toolbar toolbar;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        //初始化toolbar
        toolbar();
    }
    @SuppressLint("ResourceAsColor")
    public void toolbar(){
        toolbar=findViewById(R.id.toolbar);
        //标题
        toolbar.setTitle("LuFei");
        //子标题
        toolbar.setSubtitle("儿子");
        //logo
        toolbar.setLogo(R.drawable.lufei);
        //左侧图标
        toolbar.setNavigationIcon(R.drawable.left2);
        //标题颜色
        toolbar.setTitleTextColor(R.color.teal_200);
        //背景颜色
        toolbar.setBackgroundResource(R.color.white);
        //设置toolbar对象
        setSupportActionBar(toolbar);

        toolbar.setNavigationOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                finish();
            }
        });
        toolbar.setOnMenuItemClickListener(new Toolbar.OnMenuItemClickListener() {
            @Override
            public boolean onMenuItemClick(MenuItem item) {
                //拿到了item对象，我们有id
                switch (item.getItemId()){
                    case R.id.menu1:
                        Toast.makeText(MainActivity.this, "加入", Toast.LENGTH_SHORT).show();
                        break;
                    case R.id.menu2:
                        Toast.makeText(MainActivity.this, "提示", Toast.LENGTH_SHORT).show();
                        break;
                    case R.id.menu3:
                        Toast.makeText(MainActivity.this, "退出", Toast.LENGTH_SHORT).show();
                        break;
                }
                return false;
            }
        });
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        //初始化search
        getMenuInflater().inflate(R.menu.menu_main,menu);
        //获取搜索框菜单栏
        MenuItem menuItem=menu.findItem(R.id.search);
        //获取SearchView对象
        SearchView searchView= (SearchView) menuItem.getActionView();
        //设置搜索栏默认提示
        searchView.setQueryHint("请输入商品名");
        //默认搜索栏为展开状态
        searchView.setIconified(false);
        //设置搜索监听器
        searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
            //输入搜索内容后提交时触发
            @Override
            public boolean onQueryTextSubmit(String query) {
                Toast.makeText(MainActivity.this, "您输入的内容"+query, Toast.LENGTH_SHORT).show();
                return false;
            }
            //输入内容改变时触发
            @Override
            public boolean onQueryTextChange(String newText) {
                return false;
            }
        });
        return true;
    }
}

三、BottomNavigationView底部导航栏

1、案例演示

2、实现步骤

2.1、导入依赖包

    implementation 'com.google.android.material:material:1.4.0'

2.2、创建底部菜单栏（menu_bottom.xml）

<menu xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:id="@+id/bottom1"
        android:title="积分"
        android:icon="@drawable/xiangguotong"/>
    <item android:id="@+id/bottom2"
        android:title="答题"
        android:icon="@drawable/bailing"/>
    <item android:id="@+id/bottom3"
        android:title="学习"
        android:icon="@drawable/xuexi"/>
    <item android:id="@+id/bottom4"
        android:title="电台"
        android:icon="@drawable/diantai"/>
    <item android:id="@+id/bottom5"
        android:title="电视台"
        android:icon="@drawable/dianshitai"/>
</menu>

2.3、将控件加入布局

• 去掉背景 app:itemBackground=“@null”
• 设置导航栏图标颜色 app:itemIconTint=“@drawable/select_button_text”
• 设置导航栏字体颜色 app:itemTextColor=“@drawable/select_button_text”
• 解决导航栏菜单大于三个，文字不显示问题 app:labelVisibilityMode=“labeled”

<LinearLayout 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:orientation="vertical"
    tools:context=".MainActivity">

    <androidx.appcompat.widget.Toolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">
    </androidx.appcompat.widget.Toolbar>

    <FrameLayout
        android:id="@+id/frameLayout"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1">

    </FrameLayout>

    <com.google.android.material.bottomnavigation.BottomNavigationView
        android:id="@+id/bottomNavigationView"
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:background="@color/white"
        app:itemBackground="@null"
        app:labelVisibilityMode="labeled"
        app:itemIconTint="@drawable/select_button_text"
        app:itemTextColor="@drawable/select_button_text"
        app:menu="@menu/menu_bottom"/>
</LinearLayout>

selector选择器（select_button_text.xml）

去设置字体颜色，使文字颜色动态进行改变时，没有设置成功，原因是因为如果我们需要对文字颜色使用selector时，需要在item中使用

 <selector xmlns:android="http://schemas.android.com/apk/res/android">
<!--        按钮选中状态-->
        <item android:state_checked="true" android:color="@color/red"></item>
<!--        按钮未选中状态-->
        <item android:state_checked="false" android:color="@color/black"></item>
    </selector>

四、MainActivity.java

1. 在MainActivity中实现点击菜单栏fragment切换
2. 创建Fragment对象，并将其添加到FragmentLayout中
3. 添加点击事件，根据点击的菜单项实现对应的Fragment

public class MainActivity extends AppCompatActivity {

    private Toolbar toolbar;
    private List<Fragment> list=new ArrayList<>();
    private BottomNavigationView bottomNavigationView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        //初始化toolbar
        toolbar();
        //初始化底部导航
        initBottomNavigation();
    }
    @SuppressLint("ResourceAsColor")
    public void toolbar(){
        toolbar=findViewById(R.id.toolbar);
        //标题
        toolbar.setTitle("LuFei");
        //子标题
        toolbar.setSubtitle("儿子");
        //logo
        toolbar.setLogo(R.drawable.lufei);
        //左侧图标
        toolbar.setNavigationIcon(R.drawable.left2);
        //标题颜色
        toolbar.setTitleTextColor(R.color.teal_200);
        //背景颜色
        toolbar.setBackgroundResource(R.color.white);
        //设置toolbar对象
        setSupportActionBar(toolbar);

        toolbar.setNavigationOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                finish();
            }
        });
        toolbar.setOnMenuItemClickListener(new Toolbar.OnMenuItemClickListener() {
            @Override
            public boolean onMenuItemClick(MenuItem item) {
                //拿到了item对象，我们有id
                switch (item.getItemId()){
                    case R.id.menu1:
                        Toast.makeText(MainActivity.this, "加入", Toast.LENGTH_SHORT).show();
                        break;
                    case R.id.menu2:
                        Toast.makeText(MainActivity.this, "提示", Toast.LENGTH_SHORT).show();
                        break;
                    case R.id.menu3:
                        Toast.makeText(MainActivity.this, "退出", Toast.LENGTH_SHORT).show();
                        break;
                }
                return false;
            }
        });
    }
    public void initBottomNavigation(){
        bottomNavigationView=findViewById(R.id.bottomNavigationView);
//        bottomNavigationView.setItemIconTintList(null);
        /**
         * 将所有的碎片放到集合中
         * 获取FragmentManager通过GetSupportFragmentManager获得
         * 添加Fragment提交
         */
        list.add(new Fragment1());
        list.add(new Fragment2());
        list.add(new Fragment3());
        list.add(new Fragment4());
        list.add(new Fragment5());

        FragmentManager manager=getSupportFragmentManager();
        FragmentTransaction transaction=manager.beginTransaction();
        transaction.add(R.id.frameLayout,list.get(0),"积分");
        transaction.add(R.id.frameLayout,list.get(1),"答题");
        transaction.add(R.id.frameLayout,list.get(2),"学习");
        transaction.add(R.id.frameLayout,list.get(3),"电台");
        transaction.add(R.id.frameLayout,list.get(4),"电视台");
        transaction.commit();
        //进入主页面时显示学习页面，隐藏其他fragment
        transaction.hide(list.get(0));
        transaction.hide(list.get(1));
        transaction.hide(list.get(3));
        transaction.hide(list.get(4));
        //设置底部导航选中“学习”菜单项
        bottomNavigationView.setSelectedItemId(R.id.bottom3);
        bottomNavigationView.setOnNavigationItemSelectedListener(new BottomNavigationView.OnNavigationItemSelectedListener() {
            @Override
            public boolean onNavigationItemSelected(@NonNull MenuItem item) {
                FragmentManager manager=getSupportFragmentManager();
                FragmentTransaction transaction=manager.beginTransaction();
                switch (item.getItemId()){
                    case R.id.bottom1:
                        transaction.hide(list.get(1));
                        transaction.hide(list.get(2));
                        transaction.hide(list.get(3));
                        transaction.hide(list.get(4));
                        transaction.show(list.get(0));
                        transaction.commit();
                        return true;
                    case R.id.bottom2:
                        transaction.hide(list.get(0));
                        transaction.hide(list.get(2));
                        transaction.hide(list.get(3));
                        transaction.hide(list.get(4));
                        transaction.show(list.get(1));
                        transaction.commit();
                        return true;
                    case R.id.bottom3:
                        transaction.hide(list.get(1));
                        transaction.hide(list.get(0));
                        transaction.hide(list.get(3));
                        transaction.hide(list.get(4));
                        transaction.show(list.get(2));
                        transaction.commit();
                        return true;
                    case R.id.bottom4:
                        transaction.hide(list.get(1));
                        transaction.hide(list.get(2));
                        transaction.hide(list.get(0));
                        transaction.hide(list.get(4));
                        transaction.show(list.get(3));
                        transaction.commit();
                        return true;
                    case R.id.bottom5:
                        transaction.hide(list.get(1));
                        transaction.hide(list.get(2));
                        transaction.hide(list.get(3));
                        transaction.hide(list.get(0));
                        transaction.show(list.get(4));
                        transaction.commit();
                        return true;
                }
                return false;
            }
        });
    }
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        //初始化search
        getMenuInflater().inflate(R.menu.menu_main,menu);
        //获取搜索框菜单栏
        MenuItem menuItem=menu.findItem(R.id.search);
        //获取SearchView对象
        SearchView searchView= (SearchView) menuItem.getActionView();
        //设置搜索栏默认提示
        searchView.setQueryHint("请输入商品名");
        //默认搜索栏为展开状态
        searchView.setIconified(false);
        //设置搜索监听器
        searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
            //输入搜索内容后提交时触发
            @Override
            public boolean onQueryTextSubmit(String query) {
                Toast.makeText(MainActivity.this, "您输入的内容"+query, Toast.LENGTH_SHORT).show();
                return false;
            }
            //输入内容改变时触发
            @Override
            public boolean onQueryTextChange(String newText) {
                return false;
            }
        });
        return true;
    }
}

5、底部栏图片

代码007普通

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