यहाँ मेरी कोड है।
यहाँ मार्गदर्शक ड्रॉवर टुकड़ा
है
public class NavigationDrawerFragment extends Fragment implements NavigationDrawerCallbacks {
private static final String SAVED_STATE_EXPANDABLE_ITEM_MANAGER = "RecyclerViewExpandableItemManager";
/**
* 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 mActionBarDrawerToggle;
private DrawerLayout mDrawerLayout;
private RecyclerView mDrawerList;
private View mFragmentContainerView;
private int mCurrentSelectedPosition = -1;
private boolean mFromSavedInstanceState;
private boolean mUserLearnedDrawer;
private Subscription subscription;
@Inject CategoryService categoryService;
private MyExpandableItemAdapter expandableItemAdapter;
private RecyclerView.Adapter wrappedAdapter;
private RecyclerViewExpandableItemManager expandableItemManager;
private LinearLayoutManager linearLayoutManager;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
DelhiShopApplication.component().inject(this);
// 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;
}
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_navigation_drawer, container, false);
mDrawerList = (RecyclerView) view.findViewById(R.id.drawerList);
LinearLayoutManager layoutManager = new LinearLayoutManager(getActivity());
layoutManager.setOrientation(LinearLayoutManager.VERTICAL);
mDrawerList.setLayoutManager(layoutManager);
mDrawerList.setHasFixedSize(true);
if (mCurrentSelectedPosition != -1) {
selectItem(mCurrentSelectedPosition);
}
return view;
}
@Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
final Parcelable eimSavedState = (savedInstanceState != null) ? savedInstanceState.getParcelable(SAVED_STATE_EXPANDABLE_ITEM_MANAGER) : null;
expandableItemManager = new RecyclerViewExpandableItemManager(eimSavedState);
}
private void setRecyclerView(Category category) {
linearLayoutManager = new LinearLayoutManager(getActivity());
final MyExpandableItemAdapter myItemAdapter = new MyExpandableItemAdapter(category);
wrappedAdapter = expandableItemManager.createWrappedAdapter(myItemAdapter);
final GeneralItemAnimator animator = new RefactoredDefaultItemAnimator();
// Change animations are enabled by default since support-v7-recyclerview v22.
// Need to disable them when using animation indicator.
animator.setSupportsChangeAnimations(false);
mDrawerList.setLayoutManager(linearLayoutManager);
mDrawerList.setAdapter(wrappedAdapter); // requires *wrapped* adapter
mDrawerList.setItemAnimator(animator);
mDrawerList.setHasFixedSize(false);
// additional decorations
//noinspection StatementWithEmptyBody
// अगर (supportsViewElevation()) { // // लॉलीपॉप या बाद में देशी ड्रॉप शैडो सुविधा है। ItemShadowDecorator की आवश्यकता नहीं है। //} अन्य { // mDrawerList.addItemDecoration (नया ItemShadowDecorator ((NinePatchDrawable) getResources()। GetDrawable (R.drawable // .material_shadow_z1)); //}
expandableItemManager.attachRecyclerView(mDrawerList);
}
private boolean supportsViewElevation() {
return (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP);
}
public boolean isDrawerOpen() {
return mDrawerLayout != null && mDrawerLayout.isDrawerOpen(mFragmentContainerView);
}
public ActionBarDrawerToggle getActionBarDrawerToggle() {
return mActionBarDrawerToggle;
}
public DrawerLayout getDrawerLayout() {
return mDrawerLayout;
}
@Override
public void onNavigationDrawerItemSelected(int position) {
selectItem(position);
}
/**
* 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.
* @param toolbar The Toolbar of the activity.
*/
public void setup(int fragmentId, DrawerLayout drawerLayout, Toolbar toolbar) {
mFragmentContainerView = (View) getActivity().findViewById(fragmentId).getParent();
mDrawerLayout = drawerLayout;
mDrawerLayout.setStatusBarBackgroundColor(getResources().getColor(R.color.myPrimaryDarkColor));
mActionBarDrawerToggle = new ActionBarDrawerToggle(getActivity(), mDrawerLayout, toolbar, R.string
.drawer_open, R.string.drawer_close) {
@Override
public void onDrawerClosed(View drawerView) {
super.onDrawerClosed(drawerView);
if (!isAdded()) {
return;
}
getActivity().invalidateOptionsMenu(); // calls onPrepareOptionsMenu()
}
@Override
public void onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
if (!isAdded()) {
return;
}
if (!mUserLearnedDrawer) {
mUserLearnedDrawer = true;
SharedPreferences sp = PreferenceManager
.getDefaultSharedPreferences(getActivity());
sp.edit().putBoolean(PREF_USER_LEARNED_DRAWER, true).apply();
}
getActivity().invalidateOptionsMenu(); // 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() {
mActionBarDrawerToggle.syncState();
}
});
mDrawerLayout.setDrawerListener(mActionBarDrawerToggle);
}
private void selectItem(int position) {
mCurrentSelectedPosition = position;
if (mDrawerLayout != null) {
mDrawerLayout.closeDrawer(mFragmentContainerView);
}
if (mCallbacks != null) {
mCallbacks.onNavigationDrawerItemSelected(position);
}
((NavigationDrawerAdapter) mDrawerList.getAdapter()).selectPosition(position);
}
public void openDrawer() {
mDrawerLayout.openDrawer(mFragmentContainerView);
}
public void closeDrawer() {
mDrawerLayout.closeDrawer(mFragmentContainerView);
}
@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);
if (expandableItemManager != null) {
outState.putParcelable(
SAVED_STATE_EXPANDABLE_ITEM_MANAGER,
expandableItemManager.getSavedState());
}
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
// Forward the new configuration the drawer toggle component.
mActionBarDrawerToggle.onConfigurationChanged(newConfig);
}
public void setUserData(String user, String email, Bitmap avatar) {
((TextView) mFragmentContainerView.findViewById(R.id.txtUserEmail)).setText(email);
((TextView) mFragmentContainerView.findViewById(R.id.txtUsername)).setText(user);
}
public View getGoogleDrawer() {
return mFragmentContainerView.findViewById(R.id.googleDrawer);
}
@Override
public void onResume() {
super.onResume();
subscription = categoryService.getCategories()
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribe(new Action1<Category>() {
@Override
public void call(Category category) {
// sadfksdjf
expandableItemAdapter = new MyExpandableItemAdapter(category);
mDrawerList.setAdapter(expandableItemAdapter);
setRecyclerView(category);
}
}, new Action1<Throwable>() {
@Override
public void call(Throwable throwable) {
// slkdfj
}
});
}
@Override
public void onPause() {
subscription.unsubscribe();
super.onPause();
}
@Override
public void onDestroyView() {
super.onDestroyView();
if (expandableItemManager != null) {
expandableItemManager.release();
expandableItemManager = null;
}
}
यहाँ मेरे विस्तार मद एडाप्टर
public class MyExpandableItemAdapter
extends AbstractExpandableItemAdapter<MyExpandableItemAdapter.MyGroupViewHolder, MyExpandableItemAdapter.MyChildViewHolder> {
private static final String TAG = "MyExpandableItemAdapter";
private Category category;
public static abstract class MyBaseViewHolder extends AbstractExpandableItemViewHolder {
public ViewGroup mContainer;
public View mDragHandle;
public TextView mTextView;
public MyBaseViewHolder(View v) {
super(v);
mContainer = (ViewGroup) v.findViewById(R.id.container);
mDragHandle = v.findViewById(R.id.drag_handle);
mTextView = (TextView) v.findViewById(android.R.id.text1);
// hide the drag handle
mDragHandle.setVisibility(View.GONE);
}
}
public static class MyGroupViewHolder extends MyBaseViewHolder {
public MorphButtonCompat mMorphButton;
public MyGroupViewHolder(View v) {
super(v);
mMorphButton = new MorphButtonCompat(v.findViewById(R.id.indicator));
}
}
public static class MyChildViewHolder extends MyBaseViewHolder {
public MyChildViewHolder(View v) {
super(v);
}
}
public MyExpandableItemAdapter(Category dataProvider) {
category = dataProvider;
// ExpandableItemAdapter requires stable ID, and also
// have to implement the getGroupItemId()/getChildItemId() methods appropriately.
setHasStableIds(true);
}
@Override
public int getGroupCount() {
return category.getSubCategorySize();
}
@Override
public int getChildCount(int groupPosition) {
return getGroupCategoryAtPosition(groupPosition).getSubCategorySize();
}
@Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
@Override
public long getChildId(int groupPosition, int childPosition) {
return groupPosition * 100 + childPosition;
}
@Override
public int getGroupItemViewType(int groupPosition) {
return 0;
}
@Override
public int getChildItemViewType(int groupPosition, int childPosition) {
return 0;
}
@Override
public MyGroupViewHolder onCreateGroupViewHolder(ViewGroup parent, int viewType) {
final LayoutInflater inflater = LayoutInflater.from(parent.getContext());
final View v = inflater.inflate(R.layout.list_group_item, parent, false);
return new MyGroupViewHolder(v);
}
@Override
public MyChildViewHolder onCreateChildViewHolder(ViewGroup parent, int viewType) {
final LayoutInflater inflater = LayoutInflater.from(parent.getContext());
final View v = inflater.inflate(R.layout.list_item, parent, false);
return new MyChildViewHolder(v);
}
@Override
public void onBindGroupViewHolder(MyGroupViewHolder holder, int groupPosition, int viewType) {
// child item
final Category groupItem = getGroupCategoryAtPosition(groupPosition);
// set text
holder.mTextView.setText(groupItem.getCategoryName());
// mark as clickable
holder.itemView.setClickable(true);
// set background resource (target view ID: container)
final int expandState = holder.getExpandStateFlags();
if ((expandState & RecyclerViewExpandableItemManager.STATE_FLAG_IS_UPDATED) != 0) {
int bgResId;
MorphButton.MorphState indicatorState;
if ((expandState & RecyclerViewExpandableItemManager.STATE_FLAG_IS_EXPANDED) != 0) {
bgResId = R.drawable.bg_group_item_expanded_state;
indicatorState = MorphButton.MorphState.END;
} else {
bgResId = R.drawable.bg_group_item_normal_state;
indicatorState = MorphButton.MorphState.START;
}
holder.mContainer.setBackgroundResource(bgResId);
if (holder.mMorphButton.getState() != indicatorState) {
holder.mMorphButton.setState(indicatorState, true);
}
}
}
@Override
public void onBindChildViewHolder(MyChildViewHolder holder, int groupPosition, int childPosition, int viewType) {
// group item
final Category childCategory = getChildCategory(groupPosition, childPosition);
// set text
holder.mTextView.setText(childCategory.getCategoryName());
// set background resource (target view ID: container)
int bgResId;
bgResId = R.drawable.bg_item_normal_state;
holder.mContainer.setBackgroundResource(bgResId);
}
@Override
public boolean onCheckCanExpandOrCollapseGroup(MyGroupViewHolder holder, int groupPosition, int x, int y, boolean expand) {
Category groupCategory = getGroupCategoryAtPosition(groupPosition);
if (groupCategory.getSubCategorySize() == 0) {
return false;
}
// check is enabled
if (!(holder.itemView.isEnabled() && holder.itemView.isClickable())) {
return false;
}
final View containerView = holder.mContainer;
final View dragHandleView = holder.mDragHandle;
final int offsetX = containerView.getLeft() + (int) (ViewCompat.getTranslationX(containerView) + 0.5f);
final int offsetY = containerView.getTop() + (int) (ViewCompat.getTranslationY(containerView) + 0.5f);
return !hitTest(dragHandleView, x - offsetX, y - offsetY);
}
private Category getGroupCategoryAtPosition(int groupPosition) {
return category.getSubCategory().get(groupPosition);
}
private Category getChildCategory(int groupPosition, int childPosition) {
return getGroupCategoryAtPosition(groupPosition).getSubCategory().get(childPosition);
}
public static boolean hitTest(View v, int x, int y) {
final int tx = (int) (ViewCompat.getTranslationX(v) + 0.5f);
final int ty = (int) (ViewCompat.getTranslationY(v) + 0.5f);
final int left = v.getLeft() + tx;
final int right = v.getRight() + tx;
final int top = v.getTop() + ty;
final int bottom = v.getBottom() + ty;
return (x >= left) && (x <= right) && (y >= top) && (y <= bottom);
}
}
है यहाँ मेरी list_group_item.xml
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
style="@style/commonListItemStyle"
android:layout_width="match_parent"
android:layout_height="96dp"
android:layout_marginTop="8dp"
android:background="#ffffff">
<RelativeLayout
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clickable="true"
tools:ignore="UselessParent">
<View
android:id="@+id/drag_handle"
android:layout_width="32dp"
android:layout_height="match_parent"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:background="#20000000"
tools:ignore="RtlHardcoded" />
<TextView
android:id="@android:id/text1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_toRightOf="@id/drag_handle"
android:gravity="center" />
</RelativeLayout>
</FrameLayout>
list_item है।एक्सएमएल
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
style="@style/commonListItemStyle"
android:layout_width="match_parent"
android:layout_height="64dp"
android:background="@drawable/bg_swipe_item_neutral">
<RelativeLayout
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clickable="true"
tools:ignore="UselessParent">
<View
android:id="@+id/drag_handle"
android:layout_width="32dp"
android:layout_height="match_parent"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:background="#20000000" />
<TextView
android:id="@android:id/text1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_toRightOf="@id/drag_handle"
android:gravity="center"
tools:ignore="RtlHardcoded" />
</RelativeLayout>
</FrameLayout>
उदाहरण के लिए आप 'ExpandableListView' का उपयोग क्यों नहीं करना चाहते हैं? आप जो चाहते हैं उसके लिए यह सबसे अच्छा अभ्यास होगा। – rom4ek
आपने उल्लेख नहीं किया कि आपके परिदृश्य में क्या नहीं टूट गया? आप दाईं ओर शहर की एक सूची चाहते हैं? या आप मेनू सूची का विस्तार करना चाहते हैं? कृपया अधिक जानें –
सबसे खराब केस समाधान, रैखिक लेआउट अभिविन्यास के साथ दो सूची दृश्य का उपयोग करने के लिए क्षैतिज और सेट दृश्यता दृश्यमान के रूप में दिखाई देगा और आवश्यकता के अनुसार चला जाएगा।लेकिन मैं आपको रोम 4ek समाधान का उपयोग करने के लिए सुझाव देना चाहता हूं। – Chitrang