Select one file with a single click

library/src/main/java/com/nononsenseapps/filepicker/AbstractFilePickerActivity.java

@@ -57,6 +57,8 @@ public abstract class AbstractFilePickerActivity<T> extends AppCompatActivity
     public static final String EXTRA_MODE = "nononsense.intent.MODE";
     public static final String EXTRA_ALLOW_CREATE_DIR =
             "nononsense.intent" + ".ALLOW_CREATE_DIR";
+    public static final String EXTRA_SINGLE_CLICK =
+            "nononsense.intent" + ".SINGLE_CLICK";
     // For compatibility
     public static final String EXTRA_ALLOW_MULTIPLE =
             "android.intent.extra" + ".ALLOW_MULTIPLE";
@@ -70,6 +72,7 @@ public abstract class AbstractFilePickerActivity<T> extends AppCompatActivity
     protected int mode = AbstractFilePickerFragment.MODE_FILE;
     protected boolean allowCreateDir = false;
     protected boolean allowMultiple = false;
+    protected boolean singleClick = false;
 
     @Override
     @SuppressWarnings("unchecked")
@@ -86,6 +89,8 @@ protected void onCreate(Bundle savedInstanceState) {
                     allowCreateDir);
             allowMultiple =
                     intent.getBooleanExtra(EXTRA_ALLOW_MULTIPLE, allowMultiple);
+            singleClick =
+                    intent.getBooleanExtra(EXTRA_SINGLE_CLICK, singleClick);
         }
 
         FragmentManager fm = getSupportFragmentManager();
@@ -94,7 +99,7 @@ protected void onCreate(Bundle savedInstanceState) {
 
         if (fragment == null) {
             fragment =
-                    getFragment(startPath, mode, allowMultiple, allowCreateDir);
+                    getFragment(startPath, mode, allowMultiple, allowCreateDir, singleClick);
         }
 
         if (fragment != null) {
@@ -108,7 +113,7 @@ protected void onCreate(Bundle savedInstanceState) {
 
     protected abstract AbstractFilePickerFragment<T> getFragment(
             @Nullable final String startPath, final int mode, final boolean allowMultiple,
-            final boolean allowCreateDir);
+            final boolean allowCreateDir, final boolean singleClick);
 
     @Override
     public void onSaveInstanceState(Bundle b) {

library/src/main/java/com/nononsenseapps/filepicker/AbstractFilePickerFragment.java

@@ -59,6 +59,8 @@ public abstract class AbstractFilePickerFragment<T> extends Fragment
     public static final String KEY_ALLOW_DIR_CREATE = "KEY_ALLOW_DIR_CREATE";
     // Allow multiple items to be selected.
     public static final String KEY_ALLOW_MULTIPLE = "KEY_ALLOW_MULTIPLE";
+    // If file can be selected by clicking only and checkboxes are not visible
+    public static final String KEY_SINGLE_CLICK = "KEY_SINGLE_CLICK";
     // Used for saving state.
     protected static final String KEY_CURRENT_PATH = "KEY_CURRENT_PATH";
     protected final HashSet<T> mCheckedItems;
@@ -67,6 +69,7 @@ public abstract class AbstractFilePickerFragment<T> extends Fragment
     protected T mCurrentPath = null;
     protected boolean allowCreateDir = false;
     protected boolean allowMultiple = false;
+    protected boolean singleClick = false;
     protected OnFilePickedListener mListener;
     protected FileItemAdapter<T> mAdapter = null;
     protected TextView mCurrentDirView;
@@ -110,7 +113,8 @@ protected FileItemAdapter<T> getDummyAdapter() {
      * @param allowDirCreate can new directories be created?
      */
     public void setArgs(@Nullable final String startPath, final int mode,
-                        final boolean allowMultiple, final boolean allowDirCreate) {
+                        final boolean allowMultiple, final boolean allowDirCreate,
+                        final boolean singleClick) {
         // There might have been arguments set elsewhere, if so do not overwrite them.
         Bundle b = getArguments();
         if (b == null) {
@@ -122,6 +126,7 @@ public void setArgs(@Nullable final String startPath, final int mode,
         }
         b.putBoolean(KEY_ALLOW_DIR_CREATE, allowDirCreate);
         b.putBoolean(KEY_ALLOW_MULTIPLE, allowMultiple);
+        b.putBoolean(KEY_SINGLE_CLICK, singleClick);
         b.putInt(KEY_MODE, mode);
         setArguments(b);
     }
@@ -301,6 +306,8 @@ public void onActivityCreated(Bundle savedInstanceState) {
                         .getBoolean(KEY_ALLOW_DIR_CREATE, allowCreateDir);
                 allowMultiple = savedInstanceState
                         .getBoolean(KEY_ALLOW_MULTIPLE, allowMultiple);
+                singleClick = savedInstanceState
+                        .getBoolean(KEY_SINGLE_CLICK, singleClick);
 
                 String path = savedInstanceState.getString(KEY_CURRENT_PATH);
                 if (path != null) {
@@ -312,6 +319,8 @@ public void onActivityCreated(Bundle savedInstanceState) {
                         .getBoolean(KEY_ALLOW_DIR_CREATE, allowCreateDir);
                 allowMultiple = getArguments()
                         .getBoolean(KEY_ALLOW_MULTIPLE, allowMultiple);
+                singleClick = getArguments()
+                        .getBoolean(KEY_SINGLE_CLICK, singleClick);
                 if (getArguments().containsKey(KEY_START_PATH)) {
                     String path = getArguments().getString(KEY_START_PATH);
                     if (path != null) {
@@ -321,6 +330,8 @@ public void onActivityCreated(Bundle savedInstanceState) {
             }
         }
 
+        if (singleClick) getActivity().findViewById(R.id.nnf_button_ok).setVisibility(View.GONE);
+
         // If still null
         if (mCurrentPath == null) {
             mCurrentPath = getRoot();
@@ -357,6 +368,7 @@ public void onSaveInstanceState(Bundle b) {
         b.putString(KEY_CURRENT_PATH, mCurrentPath.toString());
         b.putBoolean(KEY_ALLOW_MULTIPLE, allowMultiple);
         b.putBoolean(KEY_ALLOW_DIR_CREATE, allowCreateDir);
+        b.putBoolean(KEY_SINGLE_CLICK, singleClick);
         b.putInt(KEY_MODE, mode);
     }
 
@@ -605,7 +617,12 @@ public void onClickCheckable(@NonNull View view, @NonNull CheckableViewHolder vi
         if (isDir(viewHolder.file)) {
             goToDir(viewHolder.file);
         } else {
-            onLongClickCheckable(view, viewHolder);
+            if (!allowMultiple && singleClick) {
+                // Clear is necessary, in case user clicked some checkbox directly
+                mCheckedItems.clear();
+                mCheckedItems.add(viewHolder.file);
+                onClickOk(null);
+            } else onLongClickCheckable(view, viewHolder);
         }
     }
 
@@ -729,6 +746,7 @@ public class CheckableViewHolder extends DirViewHolder {
         public CheckableViewHolder(View v) {
             super(v);
             checkbox = (CheckBox) v.findViewById(R.id.checkbox);
+            if (singleClick) checkbox.setVisibility(View.GONE);
             checkbox.setOnClickListener(new View.OnClickListener() {
                 @Override
                 public void onClick(View v) {

library/src/main/java/com/nononsenseapps/filepicker/FilePickerActivity.java

@@ -23,11 +23,11 @@ public FilePickerActivity() {
     @Override
     protected AbstractFilePickerFragment<File> getFragment(
             @Nullable final String startPath, final int mode, final boolean allowMultiple,
-            final boolean allowCreateDir) {
+            final boolean allowCreateDir, final boolean singleClick) {
         AbstractFilePickerFragment<File> fragment = new FilePickerFragment();
         // startPath is allowed to be null. In that case, default folder should be SD-card and not "/"
         fragment.setArgs(startPath != null ? startPath : Environment.getExternalStorageDirectory().getPath(),
-                mode, allowMultiple, allowCreateDir);
+                mode, allowMultiple, allowCreateDir, singleClick);
         return fragment;
     }
 }