如何使用子项实现可扩展的android导航抽屉？
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How to implement Expandable android navigation drawer with subitems?
提问by Sagi
How to implement android navigation drawer like this?
如何实现这样的android导航抽屉？
TopLevelView1 ~ TopLevelView4 can select and no children
TopVevelView5 can collaspe
TopLevelView1 ~ TopLevelView4 可以选择并且没有孩子
TopVevelView5 可以折叠
My question is that if my group structure like this for example
我的问题是，如果我的组结构是这样的
All
Stared
Category
----mp3
----txt
----doc
----pdf
所有
凝视
类别
----mp3
----txt
----doc
----pdf
when I select all then show all file.
当我选择全部然后显示所有文件。
when I select stared then show stared file only.
当我选择盯着然后只显示盯着文件。
when I select mp3 then show only mp3 files.
当我选择 mp3 时，只显示 mp3 文件。
and Category can expand and collapse.
和类别可以扩展和折叠。
回答by canova
For navigation:
对于导航：
Alternative 1:
Sliding Menu, which I would definitely go with. Even used by popular application like LinkedIn and Foursquare and easy to implement and use. Full explanation and example source codes: SlidingMenu - GitHub
Alternative 2:
Android Navigation Drawer. If you want to fully customise everything yourself without using any libraries, this is your option. You can check codes and how to do it from Android Developers website: Creating a Navigation Drawer
备选方案 1：
滑动菜单，我肯定会去。甚至被 LinkedIn 和 Foursquare 等流行应用程序使用，并且易于实现和使用。完整解释和示例源代码：SlidingMenu - GitHub
备选方案 2：
安卓导航抽屉。如果您想在不使用任何库的情况下完全自定义所有内容，这是您的选择。您可以从 Android 开发者网站查看代码以及如何操作：Creating a Navigation Drawer
View inside your navigation drawer / sliding menu:
在导航抽屉/滑动菜单中查看：
Alternative 1:
Android default ExpandableListView. Links: Android Developers, androidhive
Alternative 2:
AnimatedExpandableListView, which is implemented from ExpandableListView, but when an item is clicked, the expand is done with a smooth animation which you may prefer to use for a better look. AnimatedExpandableListView
备选方案 1：
Android 默认 ExpandableListView。链接：Android 开发者，androidhive
备选方案 2：
AnimatedExpandableListView，它是从 ExpandableListView 实现的，但是当一个项目被点击时，展开是一个平滑的动画，你可能更喜欢使用它以获得更好的外观。动画可扩展列表视图
回答by Wishmaster
Try something like that
尝试这样的事情
<android.support.v4.widget.DrawerLayout
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<FrameLayout
android:id="@+id/drawer_list_container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="start" >
<ExpandableListView
android:id="@+id/drawer_list"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center"/>
</FrameLayout>
</android.support.v4.widget.DrawerLayout>
Java code:
爪哇代码：
drawerListView.setAdapter(new ExpandableListAdapter() {
@Override
public void unregisterDataSetObserver(DataSetObserver observer) {
// TODO Auto-generated method stub
}
@Override
public void registerDataSetObserver(DataSetObserver observer) {
// TODO Auto-generated method stub
}
@Override
public void onGroupExpanded(int groupPosition) {
// TODO Auto-generated method stub
}
@Override
public void onGroupCollapsed(int groupPosition) {
// TODO Auto-generated method stub
}
@Override
public boolean isEmpty() {
// TODO Auto-generated method stub
return false;
}
@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
// TODO Auto-generated method stub
return false;
}
@Override
public boolean hasStableIds() {
// TODO Auto-generated method stub
return true;
}
@Override
public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
TextView view = new TextView(getApplicationContext());
view.setText("group " + groupPosition);
return view;
}
@Override
public long getGroupId(int groupPosition) {
// TODO Auto-generated method stub
return groupPosition;
}
@Override
public int getGroupCount() {
// TODO Auto-generated method stub
return 5;
}
@Override
public Object getGroup(int groupPosition) {
// TODO Auto-generated method stub
return null;
}
@Override
public long getCombinedGroupId(long groupId) {
// TODO Auto-generated method stub
return 0;
}
@Override
public long getCombinedChildId(long groupId, long childId) {
// TODO Auto-generated method stub
return 0;
}
@Override
public int getChildrenCount(int groupPosition) {
// TODO Auto-generated method stub
return 5;
}
@Override
public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView,
ViewGroup parent) {
TextView view = new TextView(getApplicationContext());
view.setText("child " + groupPosition);
return view;
}
@Override
public long getChildId(int groupPosition, int childPosition) {
// TODO Auto-generated method stub
return childPosition ;
}
@Override
public Object getChild(int groupPosition, int childPosition) {
// TODO Auto-generated method stub
return null;
}
@Override
public boolean areAllItemsEnabled() {
// TODO Auto-generated method stub
return false;
}
});
