我一直在实施一个底部导航栏到我的应用程序,问题是无论我在仪表板图标上的哪个活动都是突出显示的一个。我如何得到它,因此无论我在哪个活动都是突出显示的活动?Android底部导航
public class Dashboard extends AppCompatActivity
implements View.OnClickListener
{
private BottomNavigationView.OnNavigationItemSelectedListener mOnNavigationItemSelectedListener
= new BottomNavigationView.OnNavigationItemSelectedListener()
{
@Override
public boolean onNavigationItemSelected(@NonNull MenuItem item)
{
switch (item.getItemId())
{
case R.id.navigation_request:
Intent r = new Intent(Dashboard.this, Request.class);
startActivity(r);
finish();
break;
case R.id.navigation_settings:
Intent s = new Intent(Dashboard.this, AppSettings.class);
startActivity(s);
finish();
break;
}
return false;
}
};
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_dashboard);
BottomNavigationView navigation = (BottomNavigationView) findViewById(R.id.navigation);
navigation.setOnNavigationItemSelectedListener(mOnNavigationItemSelectedListener);
}
这里是我的XML菜单文件
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:id="@+id/navigation_home"
android:icon="@drawable/ic_home_black_24dp"
android:title="@string/title_home" />
<item
android:id="@+id/navigation_request"
android:icon="@drawable/ic_request_icon"
android:title="@string/title_request" />
<item
android:id="@+id/navigation_settings"
android:icon="@drawable/ic_icon_settings"
android:title="@string/title_settings" />
</menu>
这是我如何使用导航在我activity_dashboard
<?xml version="1.0" encoding="utf-8"?>
<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:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<FrameLayout
android:id="@+id/content"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1">
<!-- ONLY TEXTVIEWS ARE HERE -->
</FrameLayout>
<android.support.design.widget.BottomNavigationView
android:id="@+id/navigation"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:background="?android:attr/windowBackground"
app:menu="@menu/navigation" />
</LinearLayout>
底部导航视图是否可以在您打开的其他活动(请求和AppSettings)上看到?或者你的意思是_当你回到Dashboard_时,总是检查相同的项目? –
所有三项活动都具有相同的确切代码,无论我转到仪表板的哪一项都始终高亮显示。 – Jayce