Android:将图标添加到抽屉布局
当你第一次创建应用程序时,你可以选择导航类型,我选择了Actionbar活动Android:将图标添加到抽屉布局,android,listview,android-actionbar,navigation-drawer,Android,Listview,Android Actionbar,Navigation Drawer,当你第一次创建应用程序时,你可以选择导航类型,我选择了Actionbar活动 <android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/drawer_layout" android:layout_wid
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.Thenewboston.MainActivity" >
<FrameLayout
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<fragment
android:id="@+id/navigation_drawer"
android:name="com.Thenewboston.NavigationDrawerFragment"
android:layout_width="@dimen/navigation_drawer_width"
android:layout_height="match_parent"
android:layout_gravity="start" />
</android.support.v4.widget.DrawerLayout>
这是NavigationDrawerFragment片段
public class NavigationDrawerFragment extends Fragment {
/**
* Remember the position of the selected item.
*/
private static final String STATE_SELECTED_POSITION = "selected_navigation_drawer_position";
/**
* Per the design guidelines, you should show the drawer on launch until the user manually
* expands it. This shared preference tracks this.
*/
private static final String PREF_USER_LEARNED_DRAWER = "navigation_drawer_learned";
/**
* A pointer to the current callbacks instance (the Activity).
*/
private NavigationDrawerCallbacks mCallbacks;
/**
* Helper component that ties the action bar to the navigation drawer.
*/
private ActionBarDrawerToggle mDrawerToggle;
private DrawerLayout mDrawerLayout;
private ListView mDrawerListView;
private View mFragmentContainerView;
private int mCurrentSelectedPosition = 0;
private boolean mFromSavedInstanceState;
private boolean mUserLearnedDrawer;
public NavigationDrawerFragment() {
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Read in the flag indicating whether or not the user has demonstrated awareness of the
// drawer. See PREF_USER_LEARNED_DRAWER for details.
SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(getActivity());
mUserLearnedDrawer = sp.getBoolean(PREF_USER_LEARNED_DRAWER, false);
if (savedInstanceState != null) {
mCurrentSelectedPosition = savedInstanceState.getInt(STATE_SELECTED_POSITION);
mFromSavedInstanceState = true;
}
// Select either the default item (0) or the last selected item.
selectItem(mCurrentSelectedPosition);
}
@Override
public void onActivityCreated (Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
// Indicate that this fragment would like to influence the set of actions in the action bar.
setHasOptionsMenu(true);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
mDrawerListView = (ListView) inflater.inflate(R.layout.fragment_navigation_drawer, container, false);
mDrawerListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
selectItem(position);
}
});
mDrawerListView.setAdapter(new ArrayAdapter<String>(
getActionBar().getThemedContext(),
android.R.layout.simple_list_item_1,
android.R.id.text1,
new String[]{
getString(R.string.title_section1),
getString(R.string.title_section2),
getString(R.string.title_section3),
getString(R.string.title_section4),
getString(R.string.title_section5),
}));
mDrawerListView.setItemChecked(mCurrentSelectedPosition, true);
return mDrawerListView;
}
public boolean isDrawerOpen() {
return mDrawerLayout != null && mDrawerLayout.isDrawerOpen(mFragmentContainerView);
}
/**
* Users of this fragment must call this method to set up the navigation drawer interactions.
*
* @param fragmentId The android:id of this fragment in its activity's layout.
* @param drawerLayout The DrawerLayout containing this fragment's UI.
*/
public void setUp(int fragmentId, DrawerLayout drawerLayout) {
mFragmentContainerView = getActivity().findViewById(fragmentId);
mDrawerLayout = drawerLayout;
// set a custom shadow that overlays the main content when the drawer opens
mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START);
// set up the drawer's list view with items and click listener
ActionBar actionBar = getActionBar();
actionBar.setDisplayHomeAsUpEnabled(true);
actionBar.setHomeButtonEnabled(true);
// ActionBarDrawerToggle ties together the the proper interactions
// between the navigation drawer and the action bar app icon.
mDrawerToggle = new ActionBarDrawerToggle(
getActivity(), /* host Activity */
mDrawerLayout, /* DrawerLayout object */
R.drawable.ic_drawer, /* nav drawer image to replace 'Up' caret */
R.string.navigation_drawer_open, /* "open drawer" description for accessibility */
R.string.navigation_drawer_close /* "close drawer" description for accessibility */
) {
@Override
public void onDrawerClosed(View drawerView) {
super.onDrawerClosed(drawerView);
if (!isAdded()) {
return;
}
getActivity().supportInvalidateOptionsMenu(); // calls onPrepareOptionsMenu()
}
@Override
public void onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
if (!isAdded()) {
return;
}
if (!mUserLearnedDrawer) {
// The user manually opened the drawer; store this flag to prevent auto-showing
// the navigation drawer automatically in the future.
mUserLearnedDrawer = true;
SharedPreferences sp = PreferenceManager
.getDefaultSharedPreferences(getActivity());
sp.edit().putBoolean(PREF_USER_LEARNED_DRAWER, true).commit();
}
getActivity().supportInvalidateOptionsMenu(); // calls onPrepareOptionsMenu()
}
};
// If the user hasn't 'learned' about the drawer, open it to introduce them to the drawer,
// per the navigation drawer design guidelines.
if (!mUserLearnedDrawer && !mFromSavedInstanceState) {
mDrawerLayout.openDrawer(mFragmentContainerView);
}
// Defer code dependent on restoration of previous instance state.
mDrawerLayout.post(new Runnable() {
@Override
public void run() {
mDrawerToggle.syncState();
}
});
mDrawerLayout.setDrawerListener(mDrawerToggle);
}
private void selectItem(int position) {
mCurrentSelectedPosition = position;
if (mDrawerListView != null) {
mDrawerListView.setItemChecked(position, true);
}
if (mDrawerLayout != null) {
mDrawerLayout.closeDrawer(mFragmentContainerView);
}
if (mCallbacks != null) {
mCallbacks.onNavigationDrawerItemSelected(position);
}
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
try {
mCallbacks = (NavigationDrawerCallbacks) activity;
} catch (ClassCastException e) {
throw new ClassCastException("Activity must implement NavigationDrawerCallbacks.");
}
}
@Override
public void onDetach() {
super.onDetach();
mCallbacks = null;
}
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putInt(STATE_SELECTED_POSITION, mCurrentSelectedPosition);
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
// Forward the new configuration the drawer toggle component.
mDrawerToggle.onConfigurationChanged(newConfig);
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
// If the drawer is open, show the global app actions in the action bar. See also
// showGlobalContextActionBar, which controls the top-left area of the action bar.
if (mDrawerLayout != null && isDrawerOpen()) {
inflater.inflate(R.menu.global, menu);
showGlobalContextActionBar();
}
super.onCreateOptionsMenu(menu, inflater);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (mDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
if (item.getItemId() == R.id.action_example) {
Toast.makeText(getActivity(), "Example action.", Toast.LENGTH_SHORT).show();
return true;
}
return super.onOptionsItemSelected(item);
}
/**
* Per the navigation drawer design guidelines, updates the action bar to show the global app
* 'context', rather than just what's in the current screen.
*/
private void showGlobalContextActionBar() {
ActionBar actionBar = getActionBar();
actionBar.setDisplayShowTitleEnabled(true);
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD);
actionBar.setTitle(R.string.app_name);
}
private ActionBar getActionBar() {
return ((ActionBarActivity) getActivity()).getSupportActionBar();
}
/**
* Callbacks interface that all activities using this fragment must implement.
*/
public static interface NavigationDrawerCallbacks {
/**
* Called when an item in the navigation drawer is selected.
*/
void onNavigationDrawerItemSelected(int position);
}
}
公共类NavigationDrawerFragment扩展片段{
/**
*记住所选项目的位置。
*/
私有静态最终字符串状态\u SELECTED\u POSITION=“SELECTED\u navigation\u drawer\u POSITION”;
/**
*根据设计指南,您应该在启动时显示抽屉,直到用户手动启动
*展开它。此共享首选项将跟踪它。
*/
私有静态最终字符串PREF\u USER\u LEARNED\u DRAWER=“导航\u DRAWER\u LEARNED”;
/**
*指向当前回调实例(活动)的指针。
*/
专用导航抽屉回调mCallbacks;
/**
*将操作栏绑定到导航抽屉的帮助器组件。
*/
私有操作bardrawertoggle mDrawerToggle;
私人抽屉布局mDrawerLayout;
私有列表视图mDrawerListView;
私有视图MFFragmentContainerView;
private int mCurrentSelectedPosition=0;
私有布尔值mFromSavedInstanceState;
私有布尔mUserLearnedDrawer;
公共导航抽屉碎片(){
}
@凌驾
创建时的公共void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
//读入标志,指示用户是否已意识到
//抽屉。有关详细信息,请参阅首选用户抽屉。
SharedReferences sp=PreferenceManager.GetDefaultSharedReferences(getActivity());
mUserLearnedDrawer=sp.getBoolean(预用户已学习抽屉,false);
如果(savedInstanceState!=null){
mCurrentSelectedPosition=savedInstanceState.getInt(STATE\u SELECTED\u POSITION);
mFromSavedInstanceState=true;
}
//选择默认项(0)或最后选定的项。
selectItem(mCurrentSelectedPosition);
}
@凌驾
已创建ActivityState上的公共无效(Bundle savedInstanceState){
super.onActivityCreated(savedInstanceState);
//指示此片段希望影响操作栏中的操作集。
设置选项菜单(真);
}
@凌驾
创建视图上的公共视图(布局、充气机、视图组容器、,
Bundle savedInstanceState){
mDrawerListView=(ListView)充气器。充气(R.layout.fragment\u导航\u抽屉,容器,false);
mDrawerListView.setOnItemClickListener(新的AdapterView.OnItemClickListener(){
@凌驾
public void onItemClick(AdapterView父对象、视图、整型位置、长id){
选择项目(位置);
}
});
mDrawerListView.setAdapter(新阵列适配器)(
getActionBar().getThemedContext(),
android.R.layout.simple\u list\u item\u 1,
android.R.id.text1,
新字符串[]{
getString(R.string.title_第1节),
getString(R.string.title_第2节),
getString(R.string.title_第3节),
getString(R.string.title_第4节),
getString(R.string.title_第5节),
}));
mDrawerListView.setItemChecked(mCurrentSelectedPosition,true);
返回mDrawerListView;
}
公共布尔值isDrawerOpen(){
返回mDrawerLayout!=null&&mDrawerLayout.isDrawerOpen(MFFragmentContainerView);
}
/**
*此片段的用户必须调用此方法来设置导航抽屉交互。
*
*@param fragmentId此片段在其活动布局中的android:id。
*@param drawerLayout包含此片段UI的drawerLayout。
*/
公共空白设置(int fragmentId、抽屉布局抽屉布局){
MFFragmentContainerView=getActivity().findViewById(fragmentId);
mDrawerLayout=抽屉式布局;
//设置抽屉打开时覆盖主要内容的自定义阴影
mDrawerLayout.setDrawerShadow(R.drawable.drawer\u shadow,GravityCompat.START);
//使用项目设置抽屉的列表视图,然后单击listener
ActionBar ActionBar=getActionBar();
actionBar.setDisplayHomeAsUpEnabled(true);
actionBar.setHomeButtonEnabled(真);
//ActionBarDrawerToggle将适当的交互连接在一起
//在导航抽屉和操作栏应用程序图标之间。
mDrawerToggle=新操作bardrawertoggle(
getActivity(),/*主机活动*/
mDrawerLayout,/*抽屉布局对象*/
R.drawable.ic_抽屉,/*导航抽屉图像替换“Up”插入符号*/
R.string.navigation\u drawer\u open,/*“open drawer”描述用于辅助功能*/
R.string.navigation\u drawer\u close/*“close drawer”可访问性说明*/
) {
@凌驾
图纸上的公共空白已关闭(视图抽屉视图){
super.onDrawerClosed(抽屉视图);
如果(!isAdded()){
返回;
}
getActivity().SupportInvalidateOptions菜单();//调用PrepareOptions菜单()
}
@凌驾
打开图纸上的公共空白(视图抽屉视图){
super.onDrawerOpened(抽屉视图);
如果(!isAdded()){
返回;
}
如果(!mUserLearnedDrawer){
//用户手动打开抽屉;存储此标志以防止自动显示
//导航抽屉将来会自动打开。
mUserLearnedDrawer=真;
SharedReferences sp=首选项管理器
.getDefaultShared
<ListView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#333"
android:choiceMode="singleChoice"
android:divider="#404040"
android:dividerHeight="1dp"
tools:context="com.Thenewboston.NavigationDrawerFragment" />