Merge pull request #65 from SlaVcE14/ListDialog_selected-item

ListDialog - select item

SJDialog/ListDialogDoc.md

@@ -362,6 +362,10 @@ listDialog.setSelectableList();
 
 //Set text color of an items in a list
 listDialog.setListItemTextColor(color);
+//Set a background color for items in a list
+listDialog.setListItemBackgroundColor(color);
+//Set a background color for selected items in a list
+listDialog.setListItemSelectedBackgroundColor(color);
 //Set a background resource for items in a list
 listDialog.setListItemBackgroundResource(drawable);
 //Set a background resource for selected items in a list
@@ -393,6 +397,14 @@ listDialog.setItems(arrayList, listItemValues, listItemClickObj);
 listDialog.setImageItems(listItems);
 listDialog.setImageItems(listItems, listItemClickObj);
 
+//Select item in a list
+listDialog.selectItem(id);
+//Get select item in a list
+int id = listDialog.getSelectedItem();
+
+//Update list
+listDialog.updateList();
+
 //Hide 'List is empty' text 
 listDialog.hideEmptyListText();
 //Change empty list text

SJDialog/build.gradle

@@ -7,8 +7,8 @@ android {
 
     defaultConfig {
         minSdk 23
-        versionCode 21
-        versionName "1.6.1 (dev 1)"
+        versionCode 22
+        versionName "1.6.1 (dev 2)"
 
         buildConfigField 'int', 'VERSION_CODE', "${versionCode}"
         buildConfigField 'String', 'VERSION_NAME', "\"${versionName}\""

SJDialog/src/main/java/com/sjapps/library/customdialog/ListDialog.java

@@ -471,7 +471,7 @@ public ListDialog hideEmptyListText() {
         hideEmptyListTxt = true;
         return this;
     }
-    
+
     /**
      * Set text to  display when list is empty
      * @param text Text
@@ -852,6 +852,10 @@ public RecyclerView.Adapter<?> getListAdapter() {
         return adapter;
     }
 
+    public void updateList(){
+        adapter.notifyItemRangeChanged(0,adapter.getItemCount());
+    }
+
 
     /**
      * @return Background resource for views in RecycleView
@@ -880,6 +884,52 @@ public ListDialog setSelectableList() {
         return this;
     }
 
+    /**
+     * Select an item in a list
+     *
+     * @param id id of a item
+     * @return current class
+     * @since 1.6.1
+     */
+    public ListDialog selectItem(int id){
+
+        if (adapter == null)
+            throw nullAdapterException;
+
+        if (adapter instanceof DefaultListAdapterGeneric){
+            ((DefaultListAdapterGeneric<?>) adapter).selectItem(id);
+            return this;
+        }
+        if (adapter instanceof DefaultListAdapter){
+            ((DefaultListAdapter) adapter).selectItem(id);
+            return this;
+        }
+        if (adapter instanceof DefaultImageListAdapter){
+            ((DefaultImageListAdapter) adapter).selectItem(id);
+            return this;
+        }
+
+        throw AdapterNotSupportedException;
+    }
+
+    /**
+     * Get a index of a selected item in a list
+     *
+     * @return index of a selected item in a list
+     * @since 1.6.1
+     */
+    public int getSelectedItem(){
+        if (adapter == null)
+            throw nullAdapterException;
+
+        if (adapter instanceof DefaultListAdapterGeneric)
+            return ((DefaultListAdapterGeneric<?>) adapter).getSelectedItem();
+        if (adapter instanceof DefaultListAdapter)
+            return ((DefaultListAdapter) adapter).getSelectedItem();
+
+        throw  AdapterNotSupportedException;
+    }
+
     public boolean isSelectableList() {
         return isSelectableList;
     }
@@ -922,6 +972,8 @@ public <T> ArrayList<T> getSelectedItems() {
         return (ArrayList<T>) selectedItems;
     }
 
+
+
     void checkListsSize(int size) {
 
         if (hideEmptyListTxt) {
@@ -944,4 +996,6 @@ private NullPointerException nullListItemClick(Class className) {
     }
 
     private final UnsupportedOperationException tooManyAdapters = new UnsupportedOperationException("Too many Adapters for RecyclerView");
+    private final UnsupportedOperationException AdapterNotSupportedException = new UnsupportedOperationException("Current adapter for the ListDialog is not supported for this method");
+    private final NullPointerException nullAdapterException = new NullPointerException("The adapter for the ListDialog is null");
 }

SJDialog/src/main/java/com/sjapps/library/customdialog/adapter/DefaultImageListAdapter.java

@@ -27,6 +27,7 @@ public class DefaultImageListAdapter extends RecyclerView.Adapter<DefaultImageLi
     int listItemBgColor;
     int listItemBgColorSelected;
     int textColor;
+    int selected = -1;
 
     ListItemClickObj<ImageListItem> itemClick;
     ArrayList<ImageListItem> selectedItems;
@@ -101,13 +102,21 @@ public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
             return;
         }
 
+        if (selected != -1){
+            if (selected == position)
+                selectItem(holder, arrayListItems.get(position));
+            else
+                deselectItem(holder, arrayListItems.get(position));
+        }
+
         holder.getView().setOnClickListener(v -> itemClick.onClick(position, arrayListItems.get(position)));
 
     }
 
     private void setBackground(@NonNull ViewHolder holder, int position) {
         if (!isSelectable) {
             setItemResource(holder, itemBgRes);
+            setItemColor(holder,listItemBgColor);
             return;
         }
 
@@ -145,6 +154,10 @@ private void deselectItem(@NonNull ViewHolder holder,ImageListItem obj) {
         setItemColor(holder,listItemBgColor);
     }
 
+    public void selectItem(int id) {
+        selected = id;
+    }
+
     private void setItemResource(@NonNull ViewHolder holder, int drawable) {
         holder.getView().setBackgroundResource(drawable);
     }

SJDialog/src/main/java/com/sjapps/library/customdialog/adapter/DefaultListAdapter.java

@@ -23,7 +23,7 @@ public class DefaultListAdapter extends RecyclerView.Adapter<DefaultListAdapterG
     int listItemBgColor;
     int listItemBgColorSelected;
     int textColor;
-
+    int selected = -1;
 
     public DefaultListAdapter(String[] items,
                               boolean isSelectable,
@@ -77,6 +77,13 @@ public void onBindViewHolder(@NonNull DefaultListAdapterGeneric.ViewHolder holde
             return;
         }
 
+        if (selected != -1){
+            if (selected == position)
+                selectItem(holder, position);
+            else
+                deselectItem(holder, position);
+        }
+
         holder.getView().setOnClickListener(v -> itemClick.onClick(position,items[position]));
 
     }
@@ -88,6 +95,13 @@ private void selectItem(@NonNull DefaultListAdapterGeneric.ViewHolder holder, in
 
     }
 
+    public void selectItem(int id) {
+        selected = id;
+    }
+    public int getSelectedItem(){
+        return selected;
+    }
+
     private void deselectItem(@NonNull DefaultListAdapterGeneric.ViewHolder holder, int position){
         selectedItems.remove(items[position]);
         setItemResource(holder,itemBgRes);

SJDialog/src/main/java/com/sjapps/library/customdialog/adapter/DefaultListAdapterGeneric.java

@@ -34,6 +34,7 @@ public class DefaultListAdapterGeneric<T> extends RecyclerView.Adapter<DefaultLi
     int listItemBgColor;
     int listItemBgColorSelected;
     int textColor;
+    int selected = -1;
 
     ListItemClickObj<T> itemClick;
     ArrayList<T> selectedItems;
@@ -192,6 +193,13 @@ else if (isObjArr)
             return;
         }
 
+        if (selected != -1){
+            if (selected == position)
+                selectItem(holder, null);
+            else
+                deselectItem(holder, null);
+        }
+
         if (isArrList)
             holder.getView().setOnClickListener(v -> itemClick.onClick(position,arrayListItems.get(position)));
 
@@ -203,6 +211,7 @@ else if (isObjArr)
     private void setBackground(@NonNull DefaultListAdapterGeneric.ViewHolder holder, int position) {
         if (!isSelectable) {
             setItemResource(holder,itemBgRes);
+            setItemColor(holder,listItemBgColor);
             return;
         }
         if (isArrList) {
@@ -262,6 +271,13 @@ private void selectItem(@NonNull DefaultListAdapterGeneric.ViewHolder holder, T
 
     }
 
+    public void selectItem(int id){
+        selected = id;
+    }
+    public int getSelectedItem(){
+        return selected;
+    }
+
     private void deselectItem(@NonNull DefaultListAdapterGeneric.ViewHolder holder, T obj){
         selectedItems.remove(obj);
         setItemResource(holder,itemBgRes);