Pinned section header decoration for RecyclerView.(Please pay attention to a better project StickyItemDecoration)「中文版文档点这里」
A powerful pinned section header library. The realization of ideas comes from「pinned-section-item-decoration」. Please mark a star if you think it's helpful.(^∀^)
- Large pinned section header support vertical orientation of the LinearLayoutManager, GridLayoutManager and StaggeredGridLayoutManager.
- Small pinned section header support vertical orientation of the LinearLayoutManager and GridLayoutManager which its span count is 1.
- Support the header of the click, double click and long press event.
- Support the child view of the click, double click and long press event.
- It can draw the separator line and support custom separator line style. (PS: Vertical staggeredgrid layout requires fixed height, can not be randomly changed to lead to item position switch, refer to「See line 89-108 of MainActivity」)
BaseRecyclerViewAdapterHelper(It is highly recommended to use this adapter, which can greatly reduce the amount of work. The current demo is using v2.1.0.)
To add a dependency using Gradle:
compile 'com.oushangfeng:PinnedSectionItemDecoration:1.2.5'
Adapter needs to process the span count of header through the FullSpanUtil.
@Override
public void onAttachedToRecyclerView(RecyclerView recyclerView) {
super.onAttachedToRecyclerView(recyclerView);
FullSpanUtil.onAttachedToRecyclerView(recyclerView, this, StockEntity.StockInfo.TYPE_HEADER);
}
@Override
public void onViewAttachedToWindow(RecyclerView.ViewHolder holder) {
super.onViewAttachedToWindow(holder);
FullSpanUtil.onViewAttachedToWindow(holder, this, StockEntity.StockInfo.TYPE_HEADER);
}
To achieve large pinned section header, RecyclerView only need to add a PinnedHeaderItemDecoration. Note that the top layer of the header where the layout can not be set marginTop.「See StockActivity」
OnHeaderClickAdapter clickAdapter = new OnHeaderClickAdapter() {
@Override
public void onHeaderClick(View view, int id, int position) {
switch (id) {
case R.id.fl:
// case OnItemTouchListener.HEADER_ID:
Toast.makeText(StockActivity.this, "click, tag: " + mAdapter.getData().get(position).pinnedHeaderName, Toast.LENGTH_SHORT).show();
break;
case R.id.iv_more:
Toast.makeText(StockActivity.this, "click " + mAdapter.getData().get(position).pinnedHeaderName + "'s more button", Toast.LENGTH_SHORT)
.show();
break;
case R.id.checkbox:
final CheckBox checkBox = (CheckBox) view;
checkBox.setChecked(!checkBox.isChecked());
// invalidate ItemDecorations to draw the header
mRecyclerView.invalidateItemDecorations();
mAdapter.getData().get(position).check = checkBox.isChecked();
mAdapter.notifyItemChanged(position + mHeaderItemDecoration.getDataPositionOffset());
break;
}
}
};
mRecyclerView.addItemDecoration(
// Set the type of pinned header
new PinnedHeaderItemDecoration.Builder(StockEntity.StockInfo.TYPE_HEADER)
// Set separator line resources id.
.setDividerId(R.drawable.divider)
// Enable draw the separator line, by default it's disable.
.enableDivider(true)
// Set click event for the header and its internal child view.
.setClickIds(R.id.iv_more)
// Disable header click event, by default it's enable.
.disableHeaderClick(false)
// Set the listener. If the listener is not null but disable the header click event(eg. disableHeaderClick(true)), then the callback don't return.
.setHeaderClickListener(clickAdapter)
.create());
To achieve small pinned section header is a little bit more complex, such as the layout A of the data .
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#70E593">
<ImageView
android:id="@+id/iv_animal"
android:layout_gravity="center"
android:layout_width="match_parent"
android:layout_height="120dp"
tools:src="@mipmap/panda0"/>
<TextView
android:id="@+id/tv_pos"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="8dp"
android:textColor="#000000"
android:textSize="18dp"
tools:text="1"/>
</FrameLayout>
This is a layout B with a small pinned section header.
<FrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageView
android:id="@+id/iv_animal"
android:layout_width="match_parent"
android:layout_height="120dp"
android:background="#70E593"
tools:src="@mipmap/panda0"/>
<ImageView
android:id="@+id/iv_small_pinned_header"
android:layout_width="50dp"
android:layout_height="50dp"
android:background="#5A5A5A"
android:padding="8dp"
android:textColor="#ffffff"
android:textSize="18dp"
tools:src="@mipmap/panda0"
tools:text="熊猫"/>
</FrameLayout>
The layout B add a header compare whit layout A,then RecyclerView only need to add a SmallPinnedHeaderItemDecoration. Note that the top layer of the header where the layout can not be set marginTop.「See SecondActivity」
OnHeaderClickAdapter headerClickAdapter = new OnHeaderClickAdapter() {
@Override
public void onHeaderClick(View view, int id, int position) {
if (id == R.id.iv_small_pinned_header) {
Toast.makeText(SecondActivity.this, "click tag: " + mAdapter.getData().get(position).getPinnedHeaderName(), Toast.LENGTH_SHORT).show();
}
}
};
mRecyclerView.addItemDecoration(
// Constructor need to set the id and type of the header
new SmallPinnedHeaderItemDecoration.Builder(R.id.tv_small_pinned_header,BaseHeaderAdapter.TYPE_HEADER)
// Enable draw the separator line, by default it's disable.
.enableDivider(true)
// Set separator line resources id.
.setDividerId(R.drawable.divider)
// Set click event for the header and its internal child view.
.setClickIds(R.id.tv_small_pinned_header)
// Disable header click event, by default it's enable.
.disableHeaderClick(false)
// Set the listener. If the listener is not null but disable the header click event(eg. disableHeaderClick(true)), then the callback don't return.
.setHeaderClickListener(clickAdapter)
.create());
Copyright 2016 oubowu
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
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http://www.apache.org/licenses/LICENSE-2.0
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distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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