Simple Horizontal Divider Item Decoration for RecyclerView
mRecyclerView.addItemDecoration(new SimpleDividerItemDecoration(
getApplicationContext()
));
NOTE: Add item decoration prior to setting the adapter
AppCompat-v7:21 provides a very useful way of dealing with pressed/focused/activated states maintaining backwards compatibility downto API-7, but there's a small issue (big for some) with the default selectableItemBackground: It uses some PNGs and/or default values for API<21. | |
The main reason is that android drawable resource definitions (prior API 21) CANNOT use theme attributes at all, so there's no way of making something like: | |
<shape android:shape="rectangle"> | |
<solid android:color="?attr/colorControlHighlight" /> | |
</shape> | |
For this, I've put this simple mockup on how to give your app better drawables that the appcompat defaults. |
/* | |
* Copyright 2014 Chris Banes | |
* | |
* 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 |
import android.content.Context; | |
import android.content.res.TypedArray; | |
import android.graphics.Canvas; | |
import android.graphics.Rect; | |
import android.graphics.drawable.Drawable; | |
import android.support.v7.widget.LinearLayoutManager; | |
import android.support.v7.widget.RecyclerView; | |
import android.util.AttributeSet; | |
import android.view.View; |
public class SettingsAdapter extends WearableListView.Adapter { | |
private final Context context; | |
private final List<SettingsItems> items; | |
public SettingsAdapter(Context context, List<SettingsItems> items) { | |
this.context = context; | |
this.items = items; | |
} |
You can use this class to realize a simple sectioned grid RecyclerView.Adapter
without changing your code.
The RecyclerView
has to use a GridLayoutManager
.
This is a porting of the class SimpleSectionedListAdapter
provided by Google
If you are looking for a sectioned list RecyclerView.Adapter
you can take a look here
/* | |
Copyright 2015 Michal Pawlowski | |
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 |
<?xml version="1.0" encoding="utf-8"?> | |
<!-- | |
Copyright (C) 2015 The Android Open Source Project | |
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 |
public class MyFragment { | |
boolean loaded; | |
private void maybeLoad() { | |
if (!loaded && getUserVisibleHint()) { | |
loaded = true; | |
loadMyData(); | |
} | |
} | |
@Override |