Android新的Bottom导航栏是怎么使用的?

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看到新的指导方针出来了,并用于google photos最新的应用程序。不知道如何使用新的底部导航栏:

那么如何使用新的底部栏?

提问于
用户回答回答于

你可以试试这段代码,参考下吧:

public class MainActivity extends AppCompatActivity {
    private BottomBar mBottomBar;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        // Notice how you don't use the setContentView method here! Just
        // pass your layout to bottom bar, it will be taken care of.
        // Everything will be just like you're used to.
        mBottomBar = BottomBar.bind(this, R.layout.activity_main,
                savedInstanceState);

        mBottomBar.setItems(
                new BottomBarTab(R.drawable.ic_recents, "Recents"),
                new BottomBarTab(R.drawable.ic_favorites, "Favorites"),
                new BottomBarTab(R.drawable.ic_nearby, "Nearby"),
                new BottomBarTab(R.drawable.ic_friends, "Friends")
        );

        mBottomBar.setOnItemSelectedListener(new OnTabSelectedListener() {
            @Override
            public void onItemSelected(final int position) {
                // the user selected a new tab
            }
        });
    }

    @Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        mBottomBar.onSaveInstanceState(outState);
    }
}

还有这样;

compile ‘com.android.support:design:25.0.0’

设计XML。

<?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"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <!-- Content Container -->

    <android.support.design.widget.BottomNavigationView
        android:id="@+id/bottom_navigation"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        app:itemBackground="@color/colorPrimary"
        app:itemIconTint="@color/white"
        app:itemTextColor="@color/white"
        app:menu="@menu/bottom_navigation_main" />

</RelativeLayout>

根据您的要求创建菜单。

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">
    <item
        android:id="@+id/action_favorites"
        android:enabled="true"
        android:icon="@drawable/ic_favorite_white_24dp"
        android:title="@string/text_favorites"
        app:showAsAction="ifRoom" />
    <item
        android:id="@+id/action_schedules"
        android:enabled="true"
        android:icon="@drawable/ic_access_time_white_24dp"
        android:title="@string/text_schedules"
        app:showAsAction="ifRoom" />
    <item
        android:id="@+id/action_music"
        android:enabled="true"
        android:icon="@drawable/ic_audiotrack_white_24dp"
        android:title="@string/text_music"
        app:showAsAction="ifRoom" />
</menu>

处理启用/禁用状态。制作选择器文件。

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:color="@color/white" android:state_enabled="true" />
    <item android:color="@color/colorPrimaryDark" android:state_enabled="false" />
</selector>

处理点击事件。

BottomNavigationView bottomNavigationView = (BottomNavigationView)
                findViewById(R.id.bottom_navigation);

bottomNavigationView.setOnNavigationItemSelectedListener(
        new BottomNavigationView.OnNavigationItemSelectedListener() {
            @Override
            public boolean onNavigationItemSelected(@NonNull MenuItem item) {
                switch (item.getItemId()) {
                    case R.id.action_favorites:

                        break;
                    case R.id.action_schedules:

                        break;
                    case R.id.action_music:

                        break;
                }
                return false;
            }
});

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