Mit Googles neuerer Veröffentlichung der Design Support Library wurden einige coole neue Ansichten eingeführt. Wenn Sie einige der neuen Komponenten (z. B. CoordinatorLayout) verwenden, können Sie (!) Das Scrollverhalten erzielen.So scrollen Sie beim Scrollen von RecyclerView nach oben/unten von der unteren Leiste
Ich war mit einigen in Scrolling-Verhalten gebaut habe versucht, aber nichts für mich arbeitet,
Ich habe einen bottombar (Linearlayout) in meinem Layout anstelle von FloatingActionButton
Hier ist, was ich will.
- OnLaunch dieser unteren Bildschirmleiste sollte erscheinen.
- Auf scrollup von Recyclerview Bodenleiste sollte scrolldown.
- Auf scroll von recyclerview unterer Leiste sollte scrollup
Gibt es diese jeden eingebauten Mechanismus zu erreichen? oder Wir brauchen Java-Code schreiben?
Hier ist mein Code:
main_activty.xml
<android.support.design.widget.CoordinatorLayout 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"
android:fitsSystemWindows="true">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">
<include layout="@layout/toolbar_srp" />
<android.support.design.widget.TabLayout
android:id="@+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:elevation="5dp"
app:tabGravity="fill"
app:tabIndicatorColor="@android:color/white"
app:tabMode="fixed" />
</android.support.design.widget.AppBarLayout>
<!-- All Scrollable Views -->
<android.support.v4.view.ViewPager
android:id="@+id/viewpager"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_behavior="@string/appbar_scrolling_view_behavior" />
<!-- Bottom bar-->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:background="#a0000000"
android:orientation="horizontal"
android:paddingBottom="@dimen/padding_small"
android:paddingTop="@dimen/padding_small">
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="0.33"
android:gravity="center"
android:paddingBottom="@dimen/padding_small"
android:paddingTop="@dimen/padding_small"
android:text="AC"
android:textColor="@color/white" />
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="0.33"
android:gravity="center"
android:paddingBottom="@dimen/padding_small"
android:paddingTop="@dimen/padding_small"
android:text="Sleeper"
android:textColor="@color/white" />
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="0.33"
android:gravity="center"
android:paddingBottom="@dimen/padding_small"
android:paddingTop="@dimen/padding_small"
android:text="Premium"
android:textColor="@color/white" />
</LinearLayout>
</android.support.design.widget.CoordinatorLayout>
fragment.xml (hier wurde ich mein recyclerview Code geputtet)
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/white"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:paddingBottom="@dimen/padding_small"
android:paddingTop="@dimen/padding_small"
android:weightSum="1">
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="0.33"
android:background="@drawable/bg_srp_sorter"
android:clickable="true"
android:gravity="center"
android:paddingBottom="@dimen/padding_small"
android:paddingTop="@dimen/padding_small"
android:text="Departure" />
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="0.33"
android:background="@drawable/bg_srp_sorter"
android:gravity="center"
android:paddingBottom="@dimen/padding_small"
android:paddingTop="@dimen/padding_small"
android:text="Duration" />
<TextView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="0.33"
android:gravity="center"
android:paddingBottom="@dimen/padding_small"
android:paddingTop="@dimen/padding_small"
android:text="Price" />
</LinearLayout>
<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:background="@color/lite_gray"></View>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:weightSum="1">
<android.support.v7.widget.RecyclerView
android:id="@+id/bus_list_recycler_view"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1" />
</LinearLayout>
</LinearLayout>
toolbar.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.Toolbar
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/colorPrimary"
app:layout_scrollFlags="scroll|enterAlways"
android:minHeight="?attr/actionBarSize">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:weightSum="1">
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="0.10">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/abc_ic_ab_back_mtrl_am_alpha" />
</LinearLayout>
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="0.78"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:weightSum="1">
<TextView
android:id="@+id/toolbar_title_source"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="0.47"
android:ellipsize="end"
android:singleLine="true"
android:text="Thiruvananthapuram "
android:textColor="@color/white"
android:textSize="@dimen/label_text_size_large" />
<TextView
android:id="@+id/toolbar_title_arrow"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="0.08"
android:text="@string/char_right"
android:textColor="@color/white"
android:textSize="@dimen/label_text_size_large"
android:textStyle="bold" />
<TextView
android:id="@+id/toolbar_title_destination"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="0.47"
android:ellipsize="end"
android:singleLine="true"
android:text=" Cochin"
android:textColor="@color/white"
android:textSize="@dimen/label_text_size_large" />
</LinearLayout>
<TextView
android:id="@+id/toolbar_sub_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="2 Seat(s)"
android:textColor="@color/lite_gray"
android:textSize="@dimen/label_text_size_normal" />
</LinearLayout>
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="0.13">
<ImageView
android:layout_width="30dp"
android:layout_height="30dp"
android:scaleType="fitCenter"
android:src="@drawable/filter" />
</LinearLayout>
</LinearLayout>
</android.support.v7.widget.Toolbar>
Werfen Sie einen Blick auf diese Antwort http://stackoverflow.com/questions/34027192/android-fab-behaviour-with-listview-for-custom-layout/34028178#34028178, aber nicht Standard-FAB-Verhalten zu erweitern weil du es nicht für FAB machst. :) –