添加最大选择数量的控制

filepicker/src/main/java/com/github/angads25/filepicker/controller/adapters/FileListAdapter.java

@@ -155,7 +155,13 @@ public View getView(final int i, View view, ViewGroup viewGroup) {
         holder.fmark.setOnCheckedChangedListener(new OnCheckedChangeListener() {
             @Override
             public void onCheckedChanged(MaterialCheckbox checkbox, boolean isChecked) {
-                item.setMarked(isChecked);
+                //限制最大选择数量
+                if (MarkedItemList.getFileCount() < properties.max_count){
+                    item.setMarked(isChecked);
+                } else {
+                    item.setMarked(false);
+                    holder.fmark.setChecked(false);
+                }
                 if (item.isMarked()) {
                     if(properties.selection_mode == DialogConfigs.MULTI_MODE) {
                         MarkedItemList.addSelectedItem(item);

filepicker/src/main/java/com/github/angads25/filepicker/model/DialogConfigs.java

@@ -52,6 +52,11 @@ public abstract class DialogConfigs {
      *  can be selected.
      */
     public static final int FILE_AND_DIR_SELECT = 2;
+
+    /*
+     *  Max Select Count , defalut 9
+     */
+    public static final int MAX_COUNT = 9;
 
     /*  PARENT_DIRECTORY*/
     public static final String DIRECTORY_SEPERATOR = "/";

filepicker/src/main/java/com/github/angads25/filepicker/model/DialogProperties.java

@@ -42,6 +42,11 @@ public class DialogProperties {
      *  See DialogConfigs for more info. Set to FILE_SELECT as default value by constructor.
      */
     public int selection_type;
+
+    /**
+     *  add property max_count
+     */
+    public int max_count;
 
     /**  The Parent/Root Directory. List of Files are populated from here. Can be set
      *  to any readable directory. /sdcard is the default location.
@@ -78,8 +83,9 @@ public DialogProperties() {
         selection_mode = DialogConfigs.SINGLE_MODE;
         selection_type = DialogConfigs.FILE_SELECT;
         root = new File(DialogConfigs.DEFAULT_DIR);
+        max_count = DialogConfigs.MAX_COUNT;
         error_dir = new File(DialogConfigs.DEFAULT_DIR);
         offset = new File(DialogConfigs.DEFAULT_DIR);
         extensions = null;
     }
-}
+}