基本實施
要新增 BottomNavigationView
,請按以下步驟操作:
- 在
build.gradle
中新增依賴項 :
compile 'com.android.support:design:25.1.0'
- 在你的佈局中新增
BottomNavigationView
:
<android.support.design.widget.BottomNavigationView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/bottom_navigation"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:menu="@menu/bottom_navigation_menu"/>
- 建立選單以填充檢視:
<!-- res/menu/bottom_navigation_menu.xml -->
<?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/my_action1"
android:enabled="true"
android:icon="@drawable/my_drawable"
android:title="@string/text"
app:showAsAction="ifRoom" />
....
</menu>
- 附加點選事件的監聽器:
//Get the view
BottomNavigationView bottomNavigationView = (BottomNavigationView)
findViewById(R.id.bottom_navigation);
//Attach the listener
bottomNavigationView.setOnNavigationItemSelectedListener(
new BottomNavigationView.OnNavigationItemSelectedListener() {
@Override
public boolean onNavigationItemSelected(@NonNull MenuItem item) {
switch (item.getItemId()) {
case R.id.my_action1:
//Do something...
break;
//...
}
return true;//returning false disables the Navigation bar animations
}
});
在 BottomNavigation-Demo 上檢視演示程式碼