Android - Expansion panels contain creation flows and allow lightweight editing of an element.
Android - Expansion panels contain creation flows and allow lightweight editing of an element.
Expansion panels contain creation flows and allow lightweight editing of an element.
AndroidX Ready
Based on Expansion Panels described on Material Design Components
https://material.io/archive/guidelines/components/expansion-panels.html#
dependencies {
implementation 'com.github.florent37:expansionpanel:1.2.4'
}…expansion_layout (they must have the same parent)expansion_headerIndicator (the id of a view inside the header)expansion_toggleOnClickexpansion_headerIndicatorRotationExpanded and expansion_headerIndicatorRotationCollapsedYou can modify the default expansion of the label with `app:expansion_expanded="false"
Layout can be toggled programmatically with .toggle()
Use .setEnable(true/false) to enable/disable the expansion
Just add a listener into ExpansionLayout (not the header !) to follow the expansion layout state
ExpansionLayout expansionLayout = findViewById(...);
expansionLayout.addListener(new ExpansionLayout.Listener() {
@Override
public void onExpansionChanged(ExpansionLayout expansionLayout, boolean expanded) {
}
});You can setup multiple expansions layout to enable only 1 opened at time
final ExpansionLayoutCollection expansionLayoutCollection = new ExpansionLayoutCollection();
expansionLayoutCollection.add(ex1);
expansionLayoutCollection.add(ex2);
expansionLayoutCollection.openOnlyOne(true);or direcly in xml with
<com.github.florent37.expansionpanel.viewgroup.ExpansionsViewGroupLinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:expansion_openOnlyOne="true"
android:orientation="vertical">
</com.github.florent37.expansionpanel.viewgroup.ExpansionsViewGroupLinearLayout>Simply use HorizontalExpansionLayout instead of ExpansionLayout
<com.github.florent37.expansionpanel.HorizontalExpansionLayout
android:id="@+id/expansionLayout"
android:layout_height="wrap_content"
android:layout_width="match_parent">
</com.github.florent37.expansionpanel.HorizontalExpansionLayout>public class MyRecyclerAdapter extends RecyclerView.Adapter<MyRecyclerHolder> {
...
//add an ExpansionLayoutCollection to your recycler adapter
private final ExpansionLayoutCollection expansionsCollection = new ExpansionLayoutCollection();
@Override
public void onBindViewHolder(MyRecyclerHolder holder, int position) {
//bind your elements
//just add the ExpansionLayout (with findViewById) to the expansionsCollection
expansionsCollection.add(holder.getExpansionLayout());
}
}Update gradle, add ability to have only one listener at time
For what? If you tried to debug ViewHolders with this layout, then you might notice that over time addListener continues to add a listener, which causes a lot of unnecessary listeners and, moreover, there can be many listeners to one layouts in different ViewHolders due to which it may cause logic breakdown
var isExpanded = false
expandableLayout.run {
//expandableLayout.singleListener = true
singleListener = true
expandableLayout.addListener { expansionLayout, expanded ->
isExpanded = expanded
}
//do not toggle (expand/collapse, etc) before add listener
if (isExpanded)
expand(false)
else
collapse(false)
}Author: Florent Champigny
Blog : http://www.tutos-android-france.com/
Fiches Plateau Moto : https://www.fiches-plateau-moto.fr/
Copyright 2017 Florent37, Inc.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.No open issues yet, or sync has not completed.