java可扩展导航抽屉未移动
我对动作酒吧夏洛克和导航抽屉很陌生。我创建了一个简单的导航抽屉。默认情况下,每当应用程序启动时,抽屉都会打开,与之交互后,无法隐藏抽屉如果我想让用户在点击屏幕左上角时打开导航抽屉,如果用户在里面选择as选项,或者再次点击屏幕左上角的应用图标,导航抽屉应该隐藏,我该怎么办
主要活动:
public class MainActivity extends Activity {
DrawerLayout mDrawerLayout;
ExpandableListView mDrawerList;
ExpandableListAdapter listAdapter;
List<String> listDataHeader;
HashMap<String, List<String>> listDataChild;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
mDrawerList = (ExpandableListView) findViewById(R.id.left_drawer);
// preparing list data
prepareListData();
listAdapter = new ExpandableListAdapter(this, listDataHeader, listDataChild);
// setting list adapter
mDrawerList.setAdapter(listAdapter);
// Listview Group click listener
mDrawerList.setOnGroupClickListener(new OnGroupClickListener() {
@Override
public boolean onGroupClick(ExpandableListView parent, View v,
int groupPosition, long id) {
// Toast.makeText(getApplicationContext(),
// "Group Clicked " + listDataHeader.get(groupPosition),
// Toast.LENGTH_SHORT).show();
return false;
}
});
// Listview Group expanded listener
mDrawerList.setOnGroupExpandListener(new OnGroupExpandListener() {
@Override
public void onGroupExpand(int groupPosition) {
Toast.makeText(getApplicationContext(),
listDataHeader.get(groupPosition) + " Expanded",
Toast.LENGTH_SHORT).show();
}
});
// Listview Group collasped listener
mDrawerList.setOnGroupCollapseListener(new OnGroupCollapseListener() {
@Override
public void onGroupCollapse(int groupPosition) {
Toast.makeText(getApplicationContext(),
listDataHeader.get(groupPosition) + " Collapsed",
Toast.LENGTH_SHORT).show();
}
});
// Listview on child click listener
mDrawerList.setOnChildClickListener(new OnChildClickListener() {
@Override
public boolean onChildClick(ExpandableListView parent, View v,
int groupPosition, int childPosition, long id) {
// TODO Auto-generated method stub
Toast.makeText(
getApplicationContext(),
listDataHeader.get(groupPosition)
+ " : "
+ listDataChild.get(
listDataHeader.get(groupPosition)).get(
childPosition), Toast.LENGTH_SHORT)
.show();
return false;
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
/*
* Preparing the list data
*/
private void prepareListData() {
listDataHeader = new ArrayList<String>();
listDataChild = new HashMap<String, List<String>>();
// Adding header data
listDataHeader.add("Today");
// Adding child data
List<String> today = new ArrayList<String>();
today.add("Tanushree Guha");
today.add("Prasenjit Roy");
today.add("Pan Singh Tomar");
today.add("Milka Singh");
today.add("Rohit Ramanujan");
today.add("Ramesh Bhatt");
today.add("Debjani Brahma");
listDataHeader.add("Tomorrow");
List<String> tomorrow = new ArrayList<String>();
tomorrow.add("Dipanjan Bhowmik");
tomorrow.add("Sarmistha Sinha");
tomorrow.add("Pranay Lalwani");
tomorrow.add("Mohit Shaw");
tomorrow.add("Lovelace Agarwal");
tomorrow.add("Tanmay Banerjee");
listDataHeader.add("Later");
List<String> later = new ArrayList<String>();
later.add("Yusuf Khan");
later.add("Jitendar Sharma");
later.add("Debashree Roy");
later.add("Mainak Ghosh");
later.add("Olivia Gomes");
listDataChild.put(listDataHeader.get(0), today); // Header, Child data
listDataChild.put(listDataHeader.get(1), tomorrow);
listDataChild.put(listDataHeader.get(2), later);
}
}
ExpandableListAdapter类:
public class ExpandableListAdapter extends BaseExpandableListAdapter {
private Context _context;
private List<String> _listDataHeader; // header titles
// child data in format of header title, child title
private HashMap<String, List<String>> _listDataChild;
public ExpandableListAdapter(Context context, List<String> listDataHeader,
HashMap<String, List<String>> listChildData) {
this._context = context;
this._listDataHeader = listDataHeader;
this._listDataChild = listChildData;
}
@Override
public Object getChild(int groupPosition, int childPosititon) {
return this._listDataChild.get(this._listDataHeader.get(groupPosition))
.get(childPosititon);
}
@Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
@Override
public View getChildView(int groupPosition, final int childPosition,
boolean isLastChild, View convertView, ViewGroup parent) {
final String childText = (String) getChild(groupPosition, childPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this._context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.list_item, null);
}
TextView txtListChild = (TextView) convertView
.findViewById(R.id.lblListItem);
txtListChild.setText(childText);
return convertView;
}
@Override
public int getChildrenCount(int groupPosition) {
return this._listDataChild.get(this._listDataHeader.get(groupPosition))
.size();
}
@Override
public Object getGroup(int groupPosition) {
return this._listDataHeader.get(groupPosition);
}
@Override
public int getGroupCount() {
return this._listDataHeader.size();
}
@Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
@Override
public View getGroupView(int groupPosition, boolean isExpanded,
View convertView, ViewGroup parent) {
String headerTitle = (String) getGroup(groupPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this._context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.list_group, null);
}
TextView lblListHeader = (TextView) convertView
.findViewById(R.id.lblListHeader);
lblListHeader.setTypeface(null, Typeface.BOLD);
lblListHeader.setText(headerTitle);
return convertView;
}
@Override
public boolean hasStableIds() {
return false;
}
@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
}
主布局:
<RelativeLayout xmlns:安卓="http://schemas.安卓.com/apk/res/安卓"
xmlns:tools="http://schemas.安卓.com/tools"
安卓:layout_width="match_parent"
安卓:layout_height="match_parent"
安卓:paddingBottom="@dimen/activity_vertical_margin"
安卓:paddingLeft="@dimen/activity_horizontal_margin"
安卓:paddingRight="@dimen/activity_horizontal_margin"
安卓:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<安卓.support.v4.widget.DrawerLayout
xmlns:安卓="http://schemas.安卓.com/apk/res/安卓"
安卓:id="@+id/drawer_layout"
安卓:layout_width="match_parent"
安卓:layout_height="match_parent" >
</安卓.support.v4.widget.DrawerLayout>
<FrameLayout
安卓:id="@+id/content_frame"
安卓:layout_width="match_parent"
安卓:layout_height="match_parent" >
</FrameLayout>
<!-- 安卓:layout_gravity="start" tells DrawerLayout to treat
this as a sliding drawer on the left side for left-to-right
languages and on the right side for right-to-left languages.
The drawer is given a fixed width in dp and extends the full height of
the container. A solid background is used for contrast
with the content view. -->
<ExpandableListView
安卓:id="@+id/left_drawer"
安卓:layout_width="240dp"
安卓:layout_height="match_parent"
安卓:layout_gravity="start"
安卓:choiceMode="singleChoice"
安卓:divider="#999999"
安卓:dividerHeight="1dp"
安卓:background="#ffffff"/>
</RelativeLayout>
列表组。xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:安卓="http://schemas.安卓.com/apk/res/安卓"
安卓:layout_width="fill_parent"
安卓:layout_height="wrap_content"
安卓:orientation="vertical"
安卓:padding="8dp"
安卓:background="#CC7A00">
<TextView
安卓:id="@+id/lblListHeader"
安卓:layout_width="fill_parent"
安卓:layout_height="wrap_content"
安卓:paddingLeft="?安卓:attr/expandableListPreferredItemPaddingLeft"
安卓:textSize="17dp"
安卓:textColor="#ffffff" />
</LinearLayout>
列表项。xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:安卓="http://schemas.安卓.com/apk/res/安卓"
安卓:layout_width="match_parent"
安卓:layout_height="55dip"
安卓:orientation="vertical"
安卓:background="#FFCC80">
<TextView
安卓:id="@+id/lblListItem"
安卓:layout_width="fill_parent"
安卓:layout_height="wrap_content"
安卓:textSize="17dip"
安卓:paddingTop="5dp"
安卓:paddingBottom="5dp"
安卓:paddingLeft="?安卓:attr/expandableListPreferredChildPaddingLeft"
安卓:textColor="#336699"/>
</LinearLayout>
输出:
请告诉我隐藏导航栏的方法
如果你想看到输出,你只需要在一个新项目中复制粘贴代码
# 1 楼答案
将布局更改为:
为了让它在菜单图标上工作,你可以参考源代码here
代码片段:
在您的案例中,mFrameHoldingList将是可扩展的listview
编辑: 对于按钮点击,如果你的应用程序有一个操作栏,那么
*编辑:使子对象可选择*